S-19501AFJA-E8T1U4 datasheet(5/52 Pages) SII

Part #	S-19501AFJA-E8T1U4

Description	CMOS VOLTAGE REGULATOR WITH WATCHDOG TIMER AND RESET FUNCTION

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Manufacturer	SII [Seiko Instruments Inc]

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FOR AUTOMOTIVE 125°C OPERATION HIGH-WITHSTAND VOLTAGE CMOS VOLTAGE REGULATOR WITH WATCHDOG TIMER AND RESET FUNCTION

Rev.1.2_01

S-19500/19501 Series

5



Pin Configuration

1. HSOP-8A

8

5

6

7

1

4

3

2

Bottom view

Top view

1

4

3

2

8

5

6

7

*1

*1. Connect the heat sink of backside

at shadowed area to the board,

and set electric potential open or

GND.

However, do not use it as the

function of electrode.

Figure 3

Table 4 S-19500 Series (Product with Watchdog Enable Function)

Pin No.

Symbol

Description

1

VOUT

Voltage output pin (Regulator block)

2

WADJ

Connection pin for watchdog

activation threshold current adjustment

resistor

3

VSS

GND pin

4

DLY

Connection pin for delay time

adjustment capacitor

5

WO / RO*1

WO

Watchdog output pin

RO

Reset output pin

6

WEN

Watchdog enable pin

7

WI

Watchdog input pin

8

VIN

Voltage input pin (Regulator block)

*1. The WO / RO pin combines the watchdog output pin and the reset

output pin.

Table 5 S-19501 Series (Product without Watchdog Enable Function)

Pin No.

Symbol

Description

1

VOUT

Voltage output pin (Regulator block)

2

WADJ

Connection pin for watchdog

activation threshold current adjustment

resistor

3

VSS

GND pin

4

DLY

Connection pin for delay time

adjustment capacitor

5

RO

Reset output pin

6

WO

Watchdog output pin

7

WI

Watchdog input pin

8

VIN

Voltage input pin (Regulator block)

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S-19501AFJA-E8T1U4 Datasheet(PDF) 5 Page - Seiko Instruments Inc

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