TPS40425

Name: TPS40425
Brand: TI
SKU: TPS40425
Price: 3.146 USD

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Controlador sin accionamiento reductor síncrono PMBUS de salida doble, bifásico, apilable

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document-pdfAcrobat TPS40425 Dual Output, 2-Phase, Stackable PMBus™ Synchronous Buck Driverless Controller with Adaptive Voltage Scaling (AVS) Bus datasheet (Rev. C) (Inglés) PDF | HTML

TPS40425

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Detalles del producto

Vin (min) (V)

4.5

Vin (max) (V)

20

Iout (max) (A)

40

Operating temperature range (°C)

-40 to 125

Control mode

Voltage mode

Topology

Multiphase

Rating

Catalog

Vout (min) (V)

0.6

Vout (max) (V)

5

Features

Adjustable current limit, Dynamic Voltage Scaling, Enable, Frequency synchronization, Phase Interleaving, Power good, Pre-Bias Start-Up, Remote Sense, Synchronous Rectification, UVLO adjustable, Voltage Margining

Iq (typ) (µA)

18000

Duty cycle (max) (%)

46

Number of phases

2

Vin (min) (V)

4.5

Vin (max) (V)

20

Iout (max) (A)

40

Operating temperature range (°C)

-40 to 125

Control mode

Voltage mode

Topology

Multiphase

Rating

Catalog

Vout (min) (V)

0.6

Vout (max) (V)

5

Features

Adjustable current limit, Dynamic Voltage Scaling, Enable, Frequency synchronization, Phase Interleaving, Power good, Pre-Bias Start-Up, Remote Sense, Synchronous Rectification, UVLO adjustable, Voltage Margining

Iq (typ) (µA)

18000

Duty cycle (max) (%)

46

Number of phases

2

VQFN (RHA)

40

36 mm² 6 x 6

Non-Smart Power Mode in Factory Default
Pin-for-Pin Equivalent to TPS40428 – Smart Power Mode in Factory Default
Single Supply Operation: 4.5 V to 20 V
V_OUT from 0.6 V
Dual or Multi-Phase Synchronous Buck Controller
Individual High-Speed AVS Interface
(0.5-V to 1.5-V Range)
Fast Transient Response
Stackable up to Four Phases
- 2-, 3-, or 4-Phase Interleaved Phase Shifts
- Accurate Current Sharing
PMBus™ Interface Capability
- Margining Up or Down with 2-mV Step
- Programmable Fault Limit and Response
- ±0.8% V_OUT
- Accuracy Current Monitoring
- ±4.5°C External Temperature Monitoring with x3904
- Programmable UVLO ON/OFF Thresholds
- Programmable Soft-Start Time, Turn-On Delay, and Turn-Off Delay
On-Chip Non-Volatile Memory (NVM) to Store Custom Configurations
0.6-V Reference Voltage with 0.5% Accuracy from –40°C to 125°C
Inductor DCR Current Sensing
Programmable ƒ_SW from 200 kHz to 1.5 MHz
Supports Pre-biased Output
Differential Remote Sensing
Synchronization to an Extermal Clock
OC/OV/UV/OT Fault Protection
40-Pin, 6 mm × 6 mm, QFN Package
Support for TI Power Stage

Non-Smart Power Mode in Factory Default
Pin-for-Pin Equivalent to TPS40428 – Smart Power Mode in Factory Default
Single Supply Operation: 4.5 V to 20 V
V_OUT from 0.6 V
Dual or Multi-Phase Synchronous Buck Controller
Individual High-Speed AVS Interface
(0.5-V to 1.5-V Range)
Fast Transient Response
Stackable up to Four Phases
- 2-, 3-, or 4-Phase Interleaved Phase Shifts
- Accurate Current Sharing
PMBus™ Interface Capability
- Margining Up or Down with 2-mV Step
- Programmable Fault Limit and Response
- ±0.8% V_OUT
- Accuracy Current Monitoring
- ±4.5°C External Temperature Monitoring with x3904
- Programmable UVLO ON/OFF Thresholds
- Programmable Soft-Start Time, Turn-On Delay, and Turn-Off Delay
On-Chip Non-Volatile Memory (NVM) to Store Custom Configurations
0.6-V Reference Voltage with 0.5% Accuracy from –40°C to 125°C
Inductor DCR Current Sensing
Programmable ƒ_SW from 200 kHz to 1.5 MHz
Supports Pre-biased Output
Differential Remote Sensing
Synchronization to an Extermal Clock
OC/OV/UV/OT Fault Protection
40-Pin, 6 mm × 6 mm, QFN Package
Support for TI Power Stage

The TPS40425 is a PMBus, synchronous buck, driverless controller. It operates in non-smart power mode in factory default setting, and it can operate in smart power mode after PMBus programming and power reboot. It can be configured as dual-output or 2-phase. It is also stackable up to 4 phases to support load current as high as 120 A. Interleaved phase shift for 2-, 3-, or 4-phases reduce the input and output ripples therefore reducing input and output capacitance.

The wide input voltage range can support 5-V and 12-V intermediate supply buses. The 0.5% reference voltage satisfies the need of precision voltage to the modern ASICs.

Using the PMBus standard, the TPS40425 device can program reference voltage, fault limit, UVLO threshold, soft-start time and turn-on and turn-off delay.

In addition, the device implements an accurate measurement system to monitor the output voltages, currents and temperatures for individual channels.

The TPS40425 is a PMBus, synchronous buck, driverless controller. It operates in non-smart power mode in factory default setting, and it can operate in smart power mode after PMBus programming and power reboot. It can be configured as dual-output or 2-phase. It is also stackable up to 4 phases to support load current as high as 120 A. Interleaved phase shift for 2-, 3-, or 4-phases reduce the input and output ripples therefore reducing input and output capacitance.

The wide input voltage range can support 5-V and 12-V intermediate supply buses. The 0.5% reference voltage satisfies the need of precision voltage to the modern ASICs.

Using the PMBus standard, the TPS40425 device can program reference voltage, fault limit, UVLO threshold, soft-start time and turn-on and turn-off delay.

In addition, the device implements an accurate measurement system to monitor the output voltages, currents and temperatures for individual channels.

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Documentación técnica

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=Principal documentación para este producto seleccionada por TI

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	Tipo	Título		Fecha
*	Data sheet	TPS40425 Dual Output, 2-Phase, Stackable PMBus™ Synchronous Buck Driverless Controller with Adaptive Voltage Scaling (AVS) Bus datasheet (Rev. C)	PDF \| HTML	01 oct 2018
	Application note	Multiphase Buck Design from Start to Finish, Part 1 (Rev. B)		07 abr 2021
	Application note	SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC		22 feb 2016
	Technical article	Select the correct PMBus POL solution for your application	PDF \| HTML	03 ago 2015
	EVM User's guide	Using the PWR594 EVM Dual Output DC/DC Analog with PMBus Interface		30 jul 2014

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Software de aplicación y estructura

FUSION_DIGITAL_POWER_DESIGNER — Software de potencia digital

Fusion Digital Power™ graphical user interface (GUI) software is used to configure and monitor select Texas Instruments digital power controllers and sequencer/health monitors. The application uses the PMBus protocol to communicate with the device over serial bus by way of a TI USB adapter.

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