Table of Contents
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1. DESCRIPTION ................................................................................................................................. 1
2. FEATURES ...................................................................................................................................... 1
3. SERIES PRODUCT NAME LIST ..................................................................................................... 1
4. BLOCK DIAGRAM........................................................................................................................... 2
5. DESCRIPTION OF BLOCK DIAGRAM ........................................................................................... 3
6. PIN ASSIGNMENT........................................................................................................................... 4
7. PIN DESCRIPTION .......................................................................................................................... 5
7.1 Pin Functions ........................................................................................................................... 5
8. FUNCTIONAL DESCRIPTION......................................................................................................... 6
8.1 Operation Description .............................................................................................................. 6
8.3 Switching Control Circuit.......................................................................................................... 9
8.4 Recommended IC Protection Circuit...................................................................................... 15
9. ELECTRICAL CHARACTERISTICS.............................................................................................. 16
9.1 Absolute Maximum Ratings ...................................................................................................16
9.2 Recommended Operating Conditions .................................................................................... 17
9.3 Electrical Characteristics........................................................................................................ 18
9.3.1
Overall Operations ................................................................................................... 18
9.3.2
V
9.3.3
V
9.3.4
V
9.3.5
Overvoltage Limiter Characteristics.......................................................................... 22
10. EXTERNAL CONNECTION DIAGRAMS....................................................................................... 24
(For 1-cell Li-ion, OFF-OFF switching, overvoltage limiter not used) ..................................... 24
(For 2-cell dry battery, ON-ON switching, overvoltage limiter used)....................................... 25
11. DIMENSIONAL OUTLINE DRAWING (QFN4-24) ......................................................................... 26
12. CHARACTERISTIC DATA ............................................................................................................. 27
12.1 S1F76980F0C000* Characteristic Data ................................................................................ 27
S1F76980 Technical Manual (Rev.1.0)
CONTENTS
Voltage Monitoring Circuit Characteristics......................................................... 19
Voltage Monitoring Circuit Characteristics....................................................... 20
Voltage Monitoring Circuit Characteristics ....................................................... 21
)................................................................ 6
EPSON
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