TPS2456

更新时间： 2024-11-08 05:52:23

品牌	Logo	应用领域
德州仪器 - TI		/
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31页	867K
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Dual 12 V Protection / Blocking Controller

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TPS2456 数据手册

TPS2456

www.ti.com

SLVSA78A –MARCH 2010–REVISED MARCH 2010

Dual 12 V Protection / Blocking Controller

Check for Samples: TPS2456

FEATURES

DESCRIPTION

•

Dual 12 V Protection and Blocking Control

Independent Current Limit and Fast Trip

Blocking Permits ORing of Multiple Inputs

Power Good and Fault Outputs

The TPS2456 is a dual, 12 V, channel protection

(hotswap) and blocking (ORing) controller that

provides inrush control, current limiting, overload

protection, and reverse current blocking. The current

sense topology provides both accurate current limits

and independent setting of current limit and fast trip

thresholds.

Analog Current Monitor Outputs

-40°C to 125°C Operating Junction

Temperature

The ORing control uses an external MOSFET to

block reverse current when an input is shorted.

Systems with closely matched supply voltages and

feed networks can supply current from both supplies

simultaneously.

•

QFN36 Package

APPLICATIONS

•

ATCA Carrier Boards

AdvancedMC™ Slots

Blade Servers

Base Stations

Configurable for

The MONx output provides an accurate analog

indication of load current.

The protection circuits may be used without blocking,

and the blocking may be used without protection.

Internal connections prevent implementation of these

as four fully-independent functions.

–

1 Source, 2 Loads

2 Sources, 1 Load

2 Sources, 2 Loads

INA

C_INA

R_SENSEA

R_SETA

M1A

R_G1A

M2A

R_G2A

0.1mF

PGA

ENA

TPS2456

FLTA

ORENA

36 PIN QFN

CTA

MONA

C_TA

33nF

GND

VINT

C_INT

COMMON

0.1mF

GND

CIRCUITRY

ENB

MONB

ORENB

R_MON

CTB

PGB

C_TB

FLTB

33nF

C_INB

R_G1B

R_G2B

M2B

R_SETB

0.1mF

M1B

INB

R_SENSEB

Figure 1. Two Sources, One Load Application Diagram

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...31

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与TPS2456相关器件

型号	品牌	获取价格	描述	数据表
TPS2456A	TI	获取价格	Dual 12 V Protection and Blocking Controller
TPS2456ARHH	TI	获取价格	Dual 12 V Protection and Blocking Controller
TPS2456ARHHR	TI	获取价格	Dual 12 V Protection and Blocking Controller
TPS2456ARHHT	TI	获取价格	Dual 12 V Protection and Blocking Controller
TPS2456RHH	TI	获取价格	Dual 12 V Protection / Blocking Controller
TPS2456RHHR	TI	获取价格	Dual 12 V Protection / Blocking Controller
TPS2456RHHT	TI	获取价格	Dual 12 V Protection / Blocking Controller
TPS2458	TI	获取价格	12-V/3.3-V Hot Swap and ORing Controller with
TPS2458_16	TI	获取价格	12-V/3.3-V Hot Swap and ORing Controller with Load Current Monitor for AdvancedMC
TPS2458RHB	TI	获取价格	12-V/3.3-V Hot Swap and ORing Controller with

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