RT9501A データシートの表示（PDF） - Richtek Technology
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RT9501A Datasheet PDF : 9 Pages
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Preliminary
RT9501A/B
Functional Pin Description
Pin Name
VDD
TS
STAT
GND
CC
FB/CE
CS
BATT
Pin Function
Supply Voltage Input.
Temperature Sense Input. Input from battery temperature monitoring circuit.
Charge Status Output. 3-state status indication of charge, charge complete and temperature fault or
disable or sleep mode.
Ground.
Charge Control Output. Current output to drive on external PNP transistor or P-Channel MOSFET
for current and voltage regulation.
External Feedback Input or Charge Enable Function. Input from controller or finely adjust the battery
regulated voltage with external voltage divider.
Current Sense Input. Charge current is sensed according to the voltage drop from supply voltage to
this pin.
Battery Voltage input. Input directly from battery voltage.
Function Block Diagram
BATT
VDD
TS
FB/CE
VDD
- Sleep Mode Detection
+
CC
FB2
Control -
CS
TS1 Trip
+
VREF1
-
-
FB2
+
TS2 Trip
-
+
CV +
VREF2
Control -
FB2
Precharge +
VREF3
Control
-
FB2
Logic
+
VREF4
Recharge
CC
Internal FB
VDD
Feedback
Determination
& Enable Control
FB2
STAT
GND
DS9501A/B-07 March 2007
www.richtek.com
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