Datasheet > AAT4672

AAT4672

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
ANALOGICTECH		开关
页数	文件大小	规格书
24页	1259K
描述
Power Supply Selector Switch

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数据手册

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AAT4672 数据手册

PRODUCT DATASHEET

AAT4672

SmartSwitch

Power Supply Selector Switch

Electrical Characteristics¹

V_MAIN/AUX= 5V, T_A= -40 to +85°C, unless otherwise noted. Typical values are at T_A= 25°C.

Symbol

Description

Conditions

Min

Typ

Max

Units

Operation

V_MAIN

MAIN Operating Voltage Range

AUX Operating Voltage Range

MAIN Switch-Over Threshold (Input Voltage

Difference)

2.5

V_AUX

V_MAIN-AUX

V_{UVLO_MAIN}

V_{UVLO_AUX}

MAIN, AUX > 2.5V

+ 0.15 + 0.2 +0.25

Rising edge

Hysteresis

Rising edge

Hysteresis

2.3

MAIN Under-Voltage Lockout

AUX Under-Voltage Lockout

0.1

2.3

0.1

I_{MAIN_OP}

I_{MAIN_SHDN}

I_{MAIN_SLP}

I_{AUX_OP}

I_{AUX_SHDN}

I_{AUX_SLP}

Power Switches

MAIN Normal Operating Current

MAIN Shutdown Mode Current

MAIN Sleep Current

AUX Normal Operating Current

AUX Shutdown Mode Current

AUX Sleep Current

V_MAIN= 5V, V_EN= 0V

V_MAIN= V_EN= 5V, OUT open

V_MAIN= 2.5V, V_AUX= 5V, V_EN= 0V

V_AUX= 5V, V_EN= 0V

V_AUX= V_EN= 5V, OUT open

V_MAIN= 5V, V_AUX= 2.5V, V_EN= 0V

µA

V_MAIN= 5.0V

V_MAIN= 3.5V

V_AUX= 5.0V

V_AUX= 3.5V

0.12

0.14

0.12

0.14

Ω

R_{DS(ON) MAIN}MAIN-to-OUT FET On-Resistance

R_{DS(ON) AUX}

AUX-to-OUT FET On-Resistance

OUT Voltage Droop from the Lower Volt-

age of MAIN and AUX, When Switching Over

Between MAIN and AUX

V_{DROOP_OUT}

I_O(OUT)= 0.5A, C_O(OUT)= 10µF

150

Current Regulation

t_{SOFT_START}

Soft-Start Delay

Delay of start from EN , or UVLO

100

µs

I_{LIM_MAIN_range}MAIN Current Limit Range

0.2

0.04

0.8

0.18

2.0

0.4

1.2

0.22

PWRSEL = 5V

PWRSEL = 0V

R_IAUX= 100kΩ

I_{LIM_AUX_range}AUX Current Limit Range

I_{LIM_MAIN}

I_{LIM_AUX}

MAIN Current Limit Accuracy

AUX Current Limit Accuracy

0.2

PWRSEL = 5V

PWRSEL = 0V

R_IMAIN= 100kΩ

Logic Control / Protection

V_IH(EN)

V_IL(EN)

Logic High Threshold

Logic Low Threshold

1.6

0.4

Threshold

Hysteresis

140

T_SHDN

Chip Thermal Shutdown Temperature

°C

1. The output charge voltage accuracy is specified over the 0° to 70°C ambient temperature range; operation over the -25°C to +85°C temperature range is guaranteed by

design.

w w w . a n a l o g i c t e c h . c o m

4672.2008.04.1.0

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