Datasheet > TPS40425RHAT

TPS40425RHAT

更新时间： 2024-11-07 01:07:39

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
95页	2147K
描述
TPS40425 Dual Output, 2-Phase, Stackable PMBusâ¢ Synchronous Buck Driverless Controller with Adaptive Voltage Scaling (AVS) Bus

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TPS40425

SLUSBO6A –JANUARY 2014–REVISED JULY 2014

TPS40425 Dual Output, 2-Phase, Stackable PMBus™ Synchronous Buck Driverless

Controller with Adaptive Voltage Scaling (AVS) Bus

1 Features

3 Description

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.

•

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_OUTfrom 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

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.

Stackable up to Four Phases

–

2-, 3-, or 4-Phase Interleaved Phase Shifts

Accurate Current Sharing

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.

•

PMBus Capability

–

Margining Up or Down with 2-mV Step

Programmable Fault Limit and Response

±0.8% V_OUT

In addition, the device implements an accurate

measurement system to monitor the output voltages,

currents and temperatures for individual channels.

Accuracy Current Monitoring

±4.5°C External Temperature Monitoring with

x3904

Device Information

–

Programmable UVLO ON/OFF Thresholds

PART NUMBER

PACKAGE

BODY SIZE (NOM)

Programmable Soft-Start Time, Turn-On

Delay, and Turn-Off Delay

TPS40425

VQFN (40)

6.00 mm × 6.00 mm

•

On-Chip Non-Volatile Memory (NVM) to Store

Custom Configurations

Simplified Application Diagram

(Dual Output)

0.6-V Reference Voltage with 0.5% Accuracy from

–40°C to 125°C

V_IN

4.5 V to 17 V

Power Stage

VIN

Power Stage

VIN

TPS40425

GND

PWM

GND

PWM

BOOT

•

Inductor DCR Current Sensing

Programmable ƒ_SWfrom 200 kHz to 1.5 MHz

Supports Pre-biased Output

BP3

VDD

GND

PWM1

ISH1

PWM2

ISH2

CS2P

CS1P

CS1N

V_OUT2

V_OUT1

Differential Remote Sensing

CS2N

Synchronization to an Extermal Clock

OC/OV/UV/OT Fault Protection

40-Pin, 6 mm × 6 mm, QFN Package

Support for TI Power Stage

DIFFO1

VSNS1

GSNS1

VSNS2

GSNS2

V_OUT2

GND

Remote SNS to V_OUT1

{

FB1

FB2

COMP2

PG2

COMP1

PG1

Compatible with High-Frequency, Synchronous

MOSFET Driver TPS28226

CNTL2

CNTL1

SYNC

PHSET

GND

2 Applications

TSNS1

TSNS2

PMBDATA

PMBCLK

Temperature Sense

•

Wireless Infrastructure

}

PMBus Interface

{

AGND

SMBALERT

Switcher/Router Networking/Server/Storage

ADDR0 AVSDATA1

ADDR1 AVSCLK1

High-Speed AVSBUS

}

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...95

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TPS40425RHAT 替代型号

型号	品牌	替代类型	描述	数据表
TPS40425RHAR	TI	类似代替	TPS40425 Dual Output, 2-Phase, Stackable PMBu

与TPS40425RHAT相关器件

型号	品牌	获取价格	描述	数据表
TPS40428	TI	获取价格	TPS40428 Dual Output, 2-Phase, Stackable PMBu
TPS40428_15	TI	获取价格	TPS40428 Dual Output, 2-Phase, Stackable PMBu
TPS40428RHAR	TI	获取价格	TPS40428 Dual Output, 2-Phase, Stackable PMBu
TPS40428RHAT	TI	获取价格	TPS40428 Dual Output, 2-Phase, Stackable PMBu
TPS-40L	COOPER	获取价格	Telpower Fuses 1 to 70 Amps, 170 Volts DC
TPS40LB	TOTAL-POWER	获取价格	SWITCHING MODE 40W LOW COST BOX TYPE POWER SUPPLY
TPS40LB-10	TOTAL-POWER	获取价格	SWITCHING MODE 40W LOW COST BOX TYPE POWER SUPPLY
TPS40LB-11	TOTAL-POWER	获取价格	SWITCHING MODE 40W LOW COST BOX TYPE POWER SUPPLY
TPS40LB-12	TOTAL-POWER	获取价格	SWITCHING MODE 40W LOW COST BOX TYPE POWER SUPPLY
TPS40LB-13	TOTAL-POWER	获取价格	SWITCHING MODE 40W LOW COST BOX TYPE POWER SUPPLY

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