IN1232(2011) 데이터 시트보기 (PDF) - IK Semicon Co., Ltd

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IN1232
(Rev.:2011)

POWER SUPPLY CONTROL WITH BUILT-IN WATCHDOG TIMER

IK Semicon Co., Ltd 

I N1232

Table 4 – AC electrical characteristics (Тamb = from -40 to +85 °С)

Symbol

tTD1

tTD2

tTD3

tPDLY

tRST

tRPD

tRPU

Parameter

Test conditions

Watchdog timer overflow

time

PBRST stable low to RST

and RST

Reset active time

VCC fail detect to RST and

RST

VCC detect to RST and RST

transition

VCC =5.0 V±10%

tST≥20 ns

TD = GND

TD disconnected

TD = VCC

VCC =5.0 V±10%

tPB≥20 ms

VCC =5.0 V±10%

tPB≥20 ms

VCC =from 5.0 to

4.0 V

tF≥10 µs

VCC = from 5.0 to

4.0 V

tR≥1 µs

Typical

min

max

62.5

250

250

1000

500

2000

-

20

250

1000

-

175

250

1000

Units

ms

ms

ms

ms

ms

µs

ms

Table 5 – Pin description

Pin

Symbol

01

PBRST

02

TD

03

TOL

04

GND

05

RST

06

RST

07

ST

08

VCC

Description

Pushbutton reset input

Time Delay Set

Selects 5% or 10% VCC Detect

Ground

Reset output (Active High)

Reset output (Active Low, open drain)

Strobe Input

Supply output from voltage source

2011, February, Rev. 01

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