S8424A datasheet(5/46 Pages) SII

5 / 46 page

BATTERY BACKUP SWITCHING IC

Rev.3.0_01

S-8424A Series



Pin Configurations

VSS

PREEND

VBAT

VRO

VIN

VOUT

RESET

8-Pin TSSOP

Top View

Table 1

Pin No.

Symbol

Description

VSS

Ground

PREEND

Output pin of PREEND voltage detector

VBAT*1

Backup power supply input pin

Output pin of CS voltage detector

RESET

Output pin of RESET voltage detector

VOUT*2

Output pin of voltage regulator 2

Figure 2

VIN*3

Primary power supply input pin

VRO*4

Output pin of voltage regulator 1

*1 to *4. Mount capacitors between VSS (GND pin) and the VIN, VBAT,

VOUT, and VRO pins. (Refer to the “Standard Circuit”)

VSS

PREEND

VBAT

VRO

VIN

VOU T

RESET

8-Pin SON(B)

Top View

Table 2

Pin No.

Symbol

Description

VSS

Ground

PREEND

Output pin of PREEND voltage detector

VBAT*1

Backup power supply input pin

Output pin of CS voltage detector

RESET

Output pin of RESET voltage detector

VOUT*2

Output pin of voltage regulator 2

Figure 3

VIN*3

Primary power supply input pin

VRO*4

Output pin of voltage regulator 1

*1 to *4. Mount capacitors between VSS (GND pin) and the VIN, VBAT,

VOUT, and VRO pins. (Refer to the “Standard Circuit”)

S8424A Datasheet(PDF) 5 Page - Seiko Instruments Inc

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