TPS2105DG4

更新时间： 2024-11-08 12:02:55

品牌	Logo	应用领域
德州仪器 - TI		开关
页数	文件大小	规格书
19页	437K
描述
VAUX POWER-DISTRIBUTION SWITCHES

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中文翻译

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数据手册
替代型号

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TPS2105DG4 数据手册

TPS2104, TPS2105

POWER-DISTRIBUTION SWITCHES

AUX

SLVS235A – SEPTEMBER 1999 – REVISED APRIL 2000

features

typical applications

Dual-Input, Single-Output MOSFET Switch

With No Reverse Current Flow (No Parasitic

Diodes)

Notebook and Desktop PCs

Cell phone, Palmtops, and PDAs

Battery Management

IN1 . . . 250-mΩ, 500-mA N-Channel;

18-µA Supply Current

TPS2104

IN1

IN2 . . . 1.3-Ω, 100-mA P-Channel;

0.75-µA Supply Current (V

Mode)

AUX

5 V V

5 V

Advanced Switch Control Logic

LOAD

IN2

5 V V

AUX

CMOS and TTL Compatible Enable Input

Controlled Rise, Fall, and Transition Times

2.7 V to 5.5 V Operating Range

Holdup

Capacitor

Control Signal

SOT-23-5 and SOIC-8 Package

–40°C to 85°C Ambient Temperature Range

Figure 1. Typical Dual-Input Single-Output

Application

2-kV Human Body Model, 750-V Charged

Device Model, 200-V Machine-Model

ESD Protection

description

The TPS2104 and TPS2105 are dual-input, single-output power switches designed to provide uninterrupted

output voltage when transitioning between two independent power supplies. Both devices combine one

n-channel (250 mΩ) and one p-channel (1.3 Ω) MOSFET with a single output. The p-channel MOSFET (IN2)

is used with auxiliary power supplies that deliver lower current for standby modes. The n-channel MOSFET

(IN1) is used with a main power supply that delivers higher current required for normal operation. Low

on-resistance makes the n-channel the ideal path for higher main supply current when power-supply regulation

and system voltage drops are critical. When using the p-channel MOSFET, quiescent current is reduced to

0.75 µA to decrease the demand on the standby power supply. The MOSFETs in the TPS2104 and TPS2105

do not have the parasitic diodes, typically found in discrete MOSFETs, thereby preventing back-flow current

when the switch is off.

TPS2104

D PACKAGE

(TOP VIEW)

DBV PACKAGE

IN2

GND

OUT

IN1

GND

IN2

OUT

IN1

TPS2105

D PACKAGE

(TOP VIEW)

DBV PACKAGE

(TOP VIEW)

IN2

GND

OUT

GND

IN2

IN1

OUT

IN1

NC – No internal connection

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 Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7...19

中文翻译

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TPS2105DG4 替代型号

型号	品牌	替代类型	描述	数据表
TPS2105D	TI	完全替代	VAUX POWER-DISTRIBUTION SWITCHES

与TPS2105DG4相关器件

型号	品牌	获取价格	描述	数据表
TPS2105-EP	TI	获取价格	TPS2105-EP VAUX Power-Distribution Switch
TPS2105MDBVREP	TI	获取价格	2.7-5.5V Dual In/Single Out MOSFET, 0.5A Main/0.1A Aux Input, Act-High Enable 5-SOT-23 -55
TPS2110	TI	获取价格	AUTOSWITCHING POWER MUX
TPS2110A	TI	获取价格	AUTOSWITHING POWER MUX
TPS2110A_15	TI	获取价格	AUTOSWITCHING POWER MUX
TPS2110APW	TI	获取价格	AUTOSWITHING POWER MUX
TPS2110APWG4	TI	获取价格	Autoswitching Power Mux 8-TSSOP -40 to 85
TPS2110APWR	TI	获取价格	AUTOSWITHING POWER MUX
TPS2110APWRG4	TI	获取价格	AUTOSWITHING POWER MUX
TPS2110PW	TI	获取价格	AUTOSWITCHING POWER MUX

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