Power management

The UCC28C5x-Q1 family of devices are high performance current-mode PWM controllers helping both Si and SiC MOSFETs applications. The UCC28C5x-Q1 family has six VDD UVLO options, with VDD abs max extended to 30 V, and reduced startup and operation currents. The UCC28C5x-Q1 family provides improved version of UCC28C4x-Q1. The table below shows the comparison. The UCC28C5x-Q1 family is offered in the 8-pin SOIC (D) package.

The BQ756506-Q1 device provides high-accuracy cell voltage measurements up to 6S battery modules in less than 200 µs while this device also supports shunt-resistor current sense measurement. The integrated front-end filters enable the system to implement with simple, low voltage rated, differential RC filters on the cell input channels. The integrated, post-ADC, low-pass filters enable filtered, DC-like, voltage measurements. This device also supports integrated current sensing capabilities with an option to synchronize with cell voltage measurements for better state of charge (SOC) calculation. The device supports autonomous internal cell balancing with temperature monitoring to auto-pause and resume balancing to avoid an overtemperature condition. This device also includes eight GPIOs or auxiliary inputs that can be used for external thermistor measurements. Host communication to the BQ756506-Q1 can be connected via the device’s dedicated UART interface.

The LM10500 is a 5A Energy Management Unit (EMU) that actively reduces system-level power consumption by utilizing a continuous, real-time, closed-loop Adaptive Voltage Scaling (AVS) scheme. The LM10500 operates cooperatively with PowerWise AVS compatible ASICs, SoCs, and processors to optimize supply voltages adaptively over process and temperature variations. The device is controlled via PowerWise Interface (PWI) 1.0 or PWI 2.0 high-speed serial interface. A typical power saving of 40% can be achieved when LM10500 is used with AVS compatible ASICs, SoCs, and processors.

The TPS53830 is D-CAP+™ mode integrated step-down converter for DDR5 on-DIMM power supply. It provides VDD, VDDQ and VPP voltages to the DRAM chips on the DIMM module with configurable current capability. The high-current rail can be configured to 2-phase or 2 outputs to supply up to 12 A (or 6 A + 6 A) current with D-CAP+™ mode control. The converter also employs internal compensation for ease of use and reduce external components. The converter provides a full set of telemetry, including input voltage, output voltage, and output current. overvoltage, undervoltage, overcurrent limit, and over-temperature protections are provided as well. The TPS53830 is packaged in a thermally-enhanced 35-pin QFN and operates from -40°C to +125°C.

The UCD7230 is part of the UCD7K family of digital control compatible drivers for applications utilizing digital control techniques or applications requiring fast local peak current limit protection. The UCD7230 is a MOSFET gate driver specifically designed for synchronous buck applications. It is ideally suited to provide the bridge between digital controllers such as the UCD91xx or the UCD95xx and the power stage. With cycle-by-cycle current limit protection, the UCD7230 device protects the power stage from faulty input signals or excessive load currents. The UCD7230 includes high-side and low-side gate drivers which utilize Texas Instrument’s TrueDrive output architecture. This architecture delivers rated current into the gate capacitance of a MOSFET during the Miller plateau region of the switching. Furthermore, the UCD7230 offers a low offset differential amplifier with a fixed gain of 48. This amplifier greatly simplifies the task of conditioning small current sense signals inherent in high efficiency buck converters. The UCD7230 includes a 3.3-V, 10-mA linear regulator to provide power to digital controllers such as the UCD91xx. The UCD7230 is compatible with standard 3.3-V I/O ports of the UCD91xx, the TMS320TM family DSPs, µCs, or ASICs. The UCD7230 is offered in PowerPAD™ HTSSOP or space-saving QFN packages. Package pin out has been carefully designed for optimal board layout

The LMG342xR050 GaN FET with integrated driver and protection enables designers to achieve new levels of power density and efficiency in power electronics systems. The LMG342xR050 integrates a silicon driver that enables switching speed up to 150 V/ns. TI’s integrated precision gate bias results in higher switching SOA compared to discrete silicon gate drivers. This integration, combined with TI’s low-inductance package, delivers clean switching and minimal ringing in hard-switching power supply topologies. Adjustable gate drive strength allows control of the slew rate from 20 V/ns to 150 V/ns, which can be used to actively control EMI and optimize switching performance. The LMG3425R050 includes ideal diode mode, which reduces third-quadrant losses by enabling adaptive dead-time control. Advanced power management features include digital temperature reporting and fault detection. The temperature of the GaN FET is reported through a variable duty cycle PWM output, which simplifies managing device loading. Faults reported include overtemperature, overcurrent, and UVLO monitoring.

The UCC27624-Q1 is a dual-channel, high-speed, low-side gate driver that effectively drives MOSFET, IGBT, SiC, and GaN power switches. UCC27624-Q1 has a typical peak drive strength of 5 A, which reduces rise and fall times of the power switches, lowers switching losses, and increases efficiency. The device’s fast propagation delay (17-ns typical) yields better power stage efficiency by improving the deadtime optimization, pulse width utilization, control loop response, and transient performance of the system. UCC27624-Q1 can handle –10 V at its inputs, which improves robustness in systems with moderate ground bouncing. The inputs are independent of supply voltage and can be connected to most controller outputs for maximum control flexibility. An independent enable signal allows the power stage to be controlled independently of main control logic. In the event of a system fault, the gate driver can quickly shut-off by pulling enable low. Many high-frequency switching power supplies exhibit noise at the gate of the power device, which can get injected into the output pin on the gate driver and can cause the driver to malfunction. The device’s transient reverse current and reverse voltage capability allow it to tolerate noise on the gate of the power device or pulse-transformer and avoid driver malfunction. The UCC27624-Q1 also features undervoltage lockout (UVLO) for improved system robustness. When there is not enough bias voltage to fully enhance the power device, the gate driver output is held low by the strong internal pull down MOSFET.

The TPS65680 device is a fully programmable high-voltage level shifter solution for LCD panels. It supports up to twelve high-voltage clock outputs in either charge-sharing or gate-voltage shaping configuration and six high-voltage control outputs for generating start, clear/reset, low-frequency ODD / EVEN signals and panel discharge. The output timing is generated by the level shifter itself, based on a user-programmable pattern sequence and requires only two connections to the timing controller: a line clock and a start pulse that indicates the start of a new frame. These two signals can be shared between multiple TPS65680 devices in applications that require a higher number of output channels than one device can generate. Customer-defined patterns and configuration settings can be stored in an on-chip nonvolatile memory to be used as the default settings after power up. Alternatively, this data can be written to the device after power up, using the I2C interface. The programmability of the TPS65680 device lets you change the output pattern without reprogramming or changing the TCON. Thus one PCB can support many different panels, which simplifies the system design, shortens the design cycle and enables economies of scale.

The TPS92643-Q1 is a monolithic, synchronous Buck LED driver with a wide 5.5-V to 36-V operating input voltage range and 40-V tolerance that supports load dump for duration of 400 ms. The TPS92643-Q1 implements an adaptive on-time average current mode control based on inductor valley current detection. The adaptive on-time control provides near constant switching frequency that can be set between 100 kHz and 2.2 MHz. Inductor current sensing and closed-loop feedback enables better than ±4% accuracy over wide input, output and ambient temperature. The high-performance LED driver can independently modulate LED current using both analog or PWM dimming techniques. Linear analog dimming range with over 15:1 range is obtained by setting the IADJ voltage. PWM dimming of LED current is achieved by directly modulating the UDIM input pin with desired duty cycle or setting the analog voltage at APWM to enable internal analog-to-PWM conversion. The internal PWM generator translates the external analog voltage by comparing it to an internal 1.4-kHz ramp signal. The TPS92643-Q1 incorporates advanced diagnostic and fault protection featuring: cycle-by-cycle switch current limit, bootstrap undervoltage, LED open, LED short and thermal shutdown. The TPS92643-Q1 is available in a 6.6-mm × 5.1-mm thermally-enhanced 16-pin HTSSOP package with 0.65-mm lead pitch.

The TPS7B4255-Q1 is a low-dropout (LDO) voltage-tracking regulator, with high tracking accuracy and excellent load and line transient response. The device is available in two 5-pin, SOT-23 packages (DBV and DYB). The TPS7B4255-Q1 is designed to supply off-board sensors in automotive applications such as powertrain systems. The device provides integrated protection features such as reverse polarity, output short to battery and ground, and current limit and thermal shutdown to protect against the high risk of cable failures in an off-board power system. The device is designed to maintain a 45-V (absolute maximum) input voltage to sustain the load dump transient conditions. A reference voltage applied at the ADJ/EN pin effectively buffers the voltage with high accuracy for loads up to 70 mA. The high tracking accuracy provides accurate power supply to the off-board modules and enables better accuracy when measuring ratiometric sensors. By setting the ADJ/EN input pin low, the TPS7B4255-Q1 switches to standby mode and reduces the quiescent current to the minimum value.

This 25-V, 1.3-mΩ, 5-mm × 6-mm SON NexFET™ power MOSFET has been designed to minimize losses in power conversion applications.

The TPS65219 is a Power Management IC (PMIC) designed to supply a wide range of SoCs in both portable and stationary applications. The device is characterized across an ambient temperature range of –40°C to +105°C, making it suitable for various industrial applications. The device includes three synchronous stepdown DC-DC converters and four linear regulators. The DC-DC converters are capable of 1x 3.5 A and 2x 2 A. They require a small 470 nH inductor, 4.7 µF input capacitance, and – depending on configuration – minimum 30 µF output capacitance per rail. Two of the LDOs support output currents of 400 mA at an output voltage range of 0.6 V to 3.4 V. These LDOs support bypass mode, acting as a load-switch, and allow voltage-changes during operation. The other two LDOs support output currents of 300 mA at an output voltage range of 1.2 V to 3.3 V. They also support load-switch mode. The I2C-interface, IOs, GPIOs and multi-function-pins (MFP) allow a seamless interface to a wide range of SoCs.

The TPS23882B is an 8-channel power sourcing equipment (PSE) controller engineered to insert power onto Ethernet cables in accordance with the IEEE 802.3bt standard. The PSE controller can detect powered devices (PDs) that have a valid signature, complete mutual identification, and apply power. The TPS23882B improves on the TPS2388 with reduced current sense resistors, SRAM programmability, programmable power limiting, capacitance measurement, and compatibility with TI’s FirmPSE system firmware (see Device Comparison Table). Programmable SRAM enables in-field firmware upgradability over I2C to ensure IEEE compliance and interoperability with the latest PoE enabled devices. Dedicated per port ADCs provide continuous port current monitoring and the ability to perform parallel classification measurements for faster port turn on times. A 1.25-A port current limit and adjustable power limiting allows for the support of non-standard applications above 60-W sourced. The 200-mΩ current sense resistor and external FET architecture allow designs to balance size, efficiency, thermal and solution cost requirements. Port remapping and pin-to-pin compatibility with the TPS2388, TPS23880, and TPS23881 devices eases migration from previous generation PSE designs and enables interchangeable 2-layer PCB designs to accommodate different system PoE power configurations.

The TPS22995H-Q1 is a single-channel load switch that contains a 16-mΩ N-channel MOSFET that can operate over an input voltage range of 0.8 V to 5.5 V and can support a maximum continuous current of 3 A. The switch is controlled by an on and off input (ON), which is capable of interfacing directly with low voltage GPIO signals. The TPS22995H-Q1 has a Quick Output Discharge when switch is turned off, pulling the output voltage down to a known 0-V state. Additionally, the devices provides an adjustable rise to limit inrush currents with high capacitive loads. The pins of the TPS22995H-Q1 are resistant to high humidity conditions, meaning that the device is able to function with a 100-kΩ short from any pin to GND or power. When the timing pin (RT) is affected by high humidity, timing is expected to stay within +/–20%. The TPS22995H-Q1 is available in a 2.8-mm × 2.9-mm, 0.5-mm pitch, 6-pin SOT package. The device is characterized for operation over the free-air temperature range of –40°C to +125°C.

The TPS38700-Q1 device is an integrated multichannel voltage sequencer with a window watchdog and I2C programmable available in a 24-pin 4 mm x 4 mm VQFN package. This multichannel voltage sequencer is ideal for systems that require precise power up and/or power down sequencing and can be interfaced with multichannel voltage supervisors. The device defaults to preprogrammed OTP options but the I2C can reprogram the power up and power down sequence, watchdog settings, and sequence timing options if needed. Flexible and programmable voltage rail sequencing capabilities, low quiescent current, and small footprint allow this device to meet most application requirements.

The TPS3704-Q1 is a low-power precision window voltage supervisor that can be configured as a quad, triple, dual, or single channel. Each channel has a threshold accuracy of ±1% in a compact SOT-23 package offering a small solution size. The TPS3704-Q1 includes a very accurate threshold detection, with high resolution, that is ideal for systems that operate on low-voltage supply rails and have narrow margin supply tolerances. Built-in low threshold hysteresis and a fixed reset delay (tD options from 20 µs to 1200 ms) prevent false reset signals when monitoring multiple voltage rails. The TPS3704-Q1 does not require any external resistors for setting the over- and undervoltage reset thresholds, which further optimizes overall high accuracy, cost, solution size, and improves reliability for safety systems. The TPS3704-Q1 functional safety compliance elevates automotive design that can meet ISO 26262 requirements and automotive safety integrity levels. Separate VDD and SENSEx pins allow monitoring of rail voltages other than VDD or can be used as a push-button input. Optional use of external resistors are supported by the SENSEx pin(s). Each channel on the TPS3704-Q1 can be customized to its own over- and undervoltage window detection with an upper and lower threshold tolerance that can be symmetric or asymmetric. The TPS3704-Q1 can monitor up to four channels while maintaining an ultra-low IQ current of 5.5 µA (typical) and operates over a temperature range of –40°C to +125°C (TA).

The TPS2586x-Q1 is an integrated USB charging port solution, which includes a synchronous, high efficiency DC/DC converter and integrated detection and control for implementing USB Battery Charging 1.2 in dual Type-A ports. The TPS2586x-Q1 is a highly-integrated USB Type-A charging controller for dual-USB ports application. The TPS2586x-Q1 integrates a monolithic, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs and two USB current-limit switches with charging port auto-detection. The TPS2586x-Q1 offers a compact solution with excellent load and line regulation over a wide input supply range. The synchronous buck regulator operates with peak-current mode control and is internally compensated to simplify the design. For TPS25865-Q1, a resistor on the FREQ pin sets the switching frequency between 200 kHz and 800 kHz. For TPS25864-Q1, a resistor on the FREQ pin sets the switching frequency between 200 kHz and 3 MHz. Operating below 400 kHz results in better system efficiency and operation above 2.1 MHz avoids the AM radio bands and allows for use of a smaller inductor. The TPS2586x-Q1 integrates standard battery charging (Rev. 1.2) and provides the required electrical signatures necessary for USB Type-A devices which use USB data line signaling to determine USB port current sourcing capabilities. The TPS2586x-Q1 also has integrated an OUT power switch that can provide maximum 200-mA current for auxiliary loads. The device is especially suitable for dual-port application due to the high system integration and small footprint. The device is especially suitable for dual-port application due to the high system integration and small footprint. The TPS2586x-Q1 supports intelligent thermal management. The USB output voltage can be regulated according to the temperature sensing through the TS pin. The TPS2586x-Q1 must connect a NTC thermistor on the TS pin to monitor the ambient temperature or PCB boar temperature, depending on where the NTC thermistor is put in the USB charging module or PCB board. Select a different NTC thermistor and bottom-side series resistor can change the temperature threshold for load shedding. The TPS2586x-Q1 have four selectable USB output voltage settings: 5.1 V, 5.17 V, 5.3 V, and 5.4 V. The TPS2586x-Q1 integrates a precision current sense amplifier for cable droop compensation and USB ports current limit. The cable compensation is only available when the output voltage is set to 5.17 V. The cable compensation voltage is 90 mV at 2.4-A output current. Cable compensation aids portable devices in charging at optimum current and voltage under heavy loads by changing the buck regulator output voltage linearly with load current to counteract the voltage drop due to wire resistance in automotive cabling. The BUS voltage measured at a connected portable device remains approximately constant, regardless of load current, allowing the battery charger of the portable device to work optimally. The TPS2586x-Q1 provides various safety features for USB charging and system operations, including external negative thermistor monitoring, cycle-by-cycle current limit, hiccup short-circuit protection, undervoltage lockout, BUS overcurrent, OUT overcurrent, and die overtemperature protection. The device family is available in a 25-pin, 3.5 mm × 4.5 mm QFN package.

The TPS258x-Q1 is an integrated USB charging port solution, which includes a synchronous DC/DC converter capable of supplying up to 6.6 A and integrated detection and control for implementing USB Battery Charging 1.2 and Type-C ports. The TPS2585x-Q1 is a family of highly-integrated USB Type-C charging controller for dual-USB ports application. The device integrates a monolithic, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs and two USB current-limit switches with charging port auto-detection. The TPS2585x-Q1 offers a compact solution that achieves 6.6 A of continuous output current with excellent load and line regulation over a wide input supply range. The synchronous buck regulator operates with peak-current mode control and is internally compensated to simplify the design. A resistor on the FREQ pin sets the switching frequency between 200 kHz and 3 MHz. Operating below 400 kHz results in better system efficiency and operation above 2.1 MHz avoids the AM radio bands and allows for use of a smaller inductor. The TPS2585x-Q1 integrates standard USB Type-C port controller functionality including Configuration Channel (CC) logic for 3-A and 1.5-A current advertisement. Battery charging (Rev. 1.2) integration provides the required electrical signatures necessary for non-Type-C, legacy USB devices which use USB data line signaling to determine USB port current sourcing capabilities. The TPS2585x-Q1 also has integrated VCONN power that can meet the USB3.1 power requirement. The part is especially suitable for dual-port application due to the high system integration and small footprint. The TPS2585x-Q1 supports intelligent thermal management. The USB output voltage and Type-C current advertisements can be regulated according to the temperature sensing through the TS pin. It must connect a NTC thermistor on the TS pin to monitor the ambient temperature or PCB boar temperature, depending on where the NTC thermistor is put in the USB charging module or PCB board. Select a different NTC thermistor and bottom-side series resistor can change the temperature threshold for load shedding. The TPS2585x-Q1 have four selectable USB output voltage settings: 5.1 V, 5.17 V, 5.3 V, and 5.4 V. The TPS2585x-Q1 integrates a precision current sense amplifier for cable droop compensation and user-programmable current limit tuning. The cable compensation is only available when the output voltage is set to 5.17 V. The cable compensation voltage is 90 mV at 2.4-A output current. Cable compensation aids portable devices in charging at optimum current and voltage under heavy loads by changing the buck regulator output voltage linearly with load current to counteract the voltage drop due to wire resistance in automotive cabling. The BUS voltage measured at a connected portable device remains approximately constant, regardless of load current, allowing the battery charger of the portable device to work optimally. The TPS2585x-Q1 provides various safety features for USB charging and system operations, including external negative thermistor monitoring, cycle-by-cycle current limit, hiccup short-circuit protection, undervoltage lockout, BUS overcurrent, OUT overcurrent, and die overtemperature protection. The device family is available in a 25-pin, 3.5 mm x 4.5 mm QFN package.

The REF35 is a family of nanopower, low-drift, high-precision series reference devices. The REF35 family features high ±0.05 % initial accuracy with power consumption typically below 700 nA. The low temperature drift (10 ppm/°C) and long-term drift (20 ppm @ 1000 hrs) ensures system stability and reliability. The low power consumption combined with high precision specifications are suitable for wide variety of portable and low current applications. The REF35 supplies up to 10 mA current with 8.5 ppmp-p noise and 30 ppm/mA load regulation. With this feature set, REF35 creates a strong low-noise high accuracy power supply for precision sensors and 12–16b data converters. The family is fully specified for operation from -40°C to 125°C and is functional over -55°C to 125°C. The wide temperature is suited for industrial applications. REF35 is available in wide output voltage variants starting from 1.024 V to 5.0 V. The device is offered in space saving SOT23-6 pin package. Contact the TI sales representative for additional voltage options.