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MGM307

charge

disable

set

temperature

protection

reset

temperature

protection

charge

enable

discharge

enable

discharge

disable

LOGIC

CHARGE

PUMP

LEVEL

SHIFTER

LEVEL

SHIFTER

CURRENT

PROTECTION

Vref

Vref

Vcp

Vref

Vref

Vref

Vref

4.18 V

3.95 V

3.6 V

2.3 V

ESD

ESD

ESD

ESD

6.8 V

SW1

SW2

SAA1502ATS

2

3

5, 6

7, 8,

9, 10

1, 16

15

14

11, 12

n.c.

VCC

Cext

VSS2

4, 13

LF

Vd

VM

VM

VSS1

ST

Fig.1 Block diagram.