Datasheet > TPS22912D

TPS22912D

更新时间： 2024-11-14 11:44:23

品牌	Logo	应用领域
德州仪器 - TI		开关
页数	文件大小	规格书
20页	743K
描述
Ultra-Small, Low on Resistance Load Switch with Controlled Turn-on

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TPS22912D 数据手册

TPS22912

www.ti.com

SLVSB78 –APRIL 2012

Ultra-Small, Low on Resistance Load Switch with Controlled Turn-on

Check for Samples: TPS22912

FEATURES

DESCRIPTION

The TPS22912 is a small, low r_ONload switch with

controlled turn-on and contains a P-channel MOSFET

that can operate over an input voltage range of 1.4 V

to 5.5 V. The switch is controlled by a high input

(ON), which is capable of interfacing directly with low-

voltage control signals.

•

Integrated Single Load Switch

Ultra Small CSP-4 Package 0.9mm × 0.9mm,

0.5mm Pitch

•

Input Voltage Range: 1.4-V to 5.5-V

Low ON-Resistance

The slew rate of the device is internally controlled in

order to avoid inrush current. The TPS22912 family

has various rise time options and is active high

enable. (see Table 1).

–

r_ON= 60-mΩ at VIN = 5-V

r_ON= 61-mΩ at VIN = 3.3-V

r_ON= 74-mΩ at VIN = 1.8-V

r_ON= 84-mΩ at VIN = 1.5-V

The TPS22912 provides circuit breaker functionality

by latching off the power switch during reverse

voltage situations. An internal reverse voltage

comparator disables the power switch when the

output voltage (V_OUT) is higher than the input (V_IN).

This process quickly (10µs typical) stops the flow of

current towards the input side of the switch. Reverse

current protection is always active, even when the

device is disabled. Additionally, under-voltage lockout

(UVLO) protection turns the switch off if the input

voltage is too low.

•

2-A Maximum Continuous Switch Current

Low Threshold Control Input

Controlled Slew-rate Options

Under-Voltage Lock Out

Reverse Current Protection

APPLICATIONS

•

Portable Industrial / Medical Equipment

Portable Media Players

The TPS22912 is available in a ultra-small, space-

saving 4-pin CSP package and is characterized for

operation over the free-air temperature range of

–40°C to 85°C.

Point of Sales Terminals

GPS Navigation Devices

Digital Cameras

Portable Instrumentation

Smartphones / Wireless Handsets

TYPICAL APPLICATION

V_IN

V_OUT

Power

Supply

C_IN

C_L

R_L

OFF

GND

TPS22912

GND

Table 1. Feature List

RISE TIME at 3.3V

QUICK OUTPUT

DISCHARGE⁽¹⁾

MAXIMUM OUTPUT

CURRENT

DEVICE

r_ON(typ) at 3.3 V

ENABLE

(typ)

TPS22912A⁽²⁾

TPS22912B⁽²⁾

TPS22912C

61 mΩ

1 µs

2-A

Active High

100 µs

1000 µs

4500 µs

TPS22912D⁽²⁾

(1) This feature discharges the output of the switch to ground through a 150-Ω resistor, preventing the output from floating.

(2) Contact local sales/distributor or factory for availability.

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...20

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与TPS22912D相关器件

型号	品牌	获取价格	描述	数据表
TPS22912DYZVR	TI	获取价格	Ultra-Small, Low on Resistance Load Switch with Controlled Turn-on
TPS22913	TI	获取价格	Ultra-Small, Low on Resistance Load Switch with Controlled Turn-on
TPS22913A	TI	获取价格	Ultra-Small, Low on Resistance Load Switch with Controlled Turn-on
TPS22913AYZVR	TI	获取价格	Ultra-Small, Low on Resistance Load Switch with Controlled Turn-on
TPS22913B	TI	获取价格	Ultra-Small, Low on Resistance Load Switch with Controlled Turn-on
TPS22913BYZVR	TI	获取价格	Ultra-Small, Low on Resistance Load Switch with Controlled Turn-on
TPS22913BYZVT	TI	获取价格	Ultra-Small, Low on Resistance Load Switch with Controlled Turn-on
TPS22913C	TI	获取价格	Ultra-Small, Low on Resistance Load Switch with Controlled Turn-on
TPS22913CYZVR	TI	获取价格	Ultra-Small, Low on Resistance Load Switch with Controlled Turn-on
TPS22913CYZVT	TI	获取价格	Ultra-Small, Low on Resistance Load Switch with Controlled Turn-on

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