M112 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

比赛名单

M112

3.3V 5V 12V HOUSEKEEPING IC

STMicroelectronics 

TSM112

PIN DESCRIPTION

Name Pin #

Type

Function

Vcc

14 Power Supply

Positive Power Supply Line

Gnd

7 Power Supply

Ground Line. 0V Reference For All Voltages

Vs12

3 Analog Input

Over and Under voltage Sense Input Dedicated to the 12V Line1)

Vs5

2 Analog Input

Over and Under voltage Sense Input Dedicated to the 5V Line1)

Vs33

1 Analog Input

Over and Under voltage Sense Input Dedicated to the 3.3V Line1)

Tuv

6 Timing Capacitor Adjustable Under voltage Blanking Delay at Power Up (Setting Capacitor)

Fault

13 Open Collector

Fault Output. Fault is high when Over or Under Voltage has been Detected

PI

5 Analog Input

Power Good Input. Detection of the Power Conditions

PG

12 Open Collector

Power Good Output. PG output is High when the Power Conditions are

OK

Tpg

11 Timing Capacitor Adjustable Power Good Delay (Setting Capacitor)

REM

9 Logic Input

Input Remote Control of the Complete System by the Motherboard

(µController). Remote is active high. Switch OFF/ON of the Power Supply.

Reset of the Complete System after a FAULT Activation.

Trem

10 Timing Capacitor Adjustable Remote Delay (Setting Capacitor).

Vref

8 Voltage Reference 2.5V Reference for all Voltages

EP

4 Analog Input

Extra Protection Circuit. Can be used for -12V or -5V Over Voltage

Protection.

1. Over and Under Voltage Inputs can go higher than Vcc within the allowed Max Rating range

ABSOLUTE MAXIMUM RATINGS

Symbol

DC Supply Voltage

Vcc DC Supply Voltage 1)

Iout Output Current Power Good

Io Output current for the Voltage reference

VFault Fault Ouput

Top Operating Free Air Temperature Range

Pd Power Dissipation

Tstg Storage Temperature

ESD Electrostatic Discharge

Tuv Adjustable Under voltage Blanking At Power UP

EP Extra Protection

PI Power Good Input

PG Power Good Output

Tpg Adjustable Power Good Delay

REM Remote Control

Trem Adjustable Remote Delay

1. All voltage values, except differential voltage are with respect to network ground terminal.

Value

Unit

25

V

30

mA

20

mA

5

V

-55 to 125

°C

0.7

W

-55 to 150

°C

2

kV

5

V

5

V

5

V

5

V

5

V

5

V

5

V

OPERATING CONDITIONS

Symbol

Parameter

Vcc DC Supply Conditions

Toper Operating Free Air Temperature Range

Value

Unit

4.5 to 24

V

0 to 85

°C

2/7

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