ACT5880
Rev 2, 03-Sep-13
PIN DESCRIPTIONS
PIN
C4
C5
C6
C7
NAME
OUT4
CHGIN
VBAT
INL6
DESCRIPTION
The Output of the LDO REG4. Bypass to GA with a 3.3μF high quality ceramic capacitor.
The Charger Input. Same function as pin A5 and pin B5.
The Charger Output. Same function as pin B6 and pin B7.
The Input Node for the LDO REG6. Bypass to GA with a 1μF high quality ceramic capacitor.
The Push-Button Input. Drive nPBIN to GA through a 50kΩ resistor to enable the IC. When the IC is
enabled, driving nPBIN to GA through a 50kΩ resistor asserts the nIRQ to call interrupt service from
the host system, and driving nPBIN to GA directly asserts a manual reset procedure. nPBIN is
internally pulled up to VSYS through a 35kꢀ resistor.
C8
nPBIN
Active-Low Open-Drain Push-Button Status Output. nPBSTAT is asserted low whenever the
nPBIN is pushed, and is high-Z otherwise.
C9
D1
nPBSTAT
ODO3
The Open Drain Output 3. A current driver output with programmable output current. It could operate
in constant current mode, switch on/off mode or PWM mode. The maximum voltage is 6V for this pin.
D2
D3
D4
D5
D6
D7
OUT9
OUT8
OUT5
INL7
The Output of the LDO REG9. Bypass to GA with a 2.2μF high quality ceramic capacitor.
The Output of the LDO REG8. Bypass to GA with a 3.3μF high quality ceramic capacitor.
The Output of the LDO REG5. Bypass to GA with a 2.2μF high quality ceramic capacitor.
The Input Node for the LDO REG7. Bypass to GA with a 1μF high quality ceramic capacitor.
The Output of the LDO REG6. Bypass to GA with a 3.3μF high quality ceramic capacitor.
The Output of the LDO REG7. Bypass to GA with a 3.3μF high quality ceramic capacitor.
OUT6
OUT7
The Enable Input to the LDO REG6, Active High. This input takes effective only when this IC is
enabled.
D8
EN6
The Enable Input to the LDO REG9, Active High. This input takes effective only when this IC is
enabled.
D9
E1
EN9
GLED
The Ground Node for ODO1, ODO2 and ODO3.
The Open Drain Output 2. A current driver output with programmable output current. It could operate
in constant current mode, switch on/off mode or PWM mode. The maximum voltage is 6V for this pin.
E2
E3
E4
E5
ODO2
OUT11
INL1011
OUT10
The Output of the LDO REG11. Bypass to GA with a 1μF high quality ceramic capacitor.
The Input Node for the LDO REG10 and REG11. Bypass to GA with a 1μF high quality ceramic
capacitor.
The Output of the LDO REG10. Bypass to GA with a 1.5μF high quality ceramic capacitor.
The Ground Path of the Step-down DC/DC REG2. Provide the direct ground return path between
the internal switch, the external storage capacitor and the input decoupling capacitor. Same function
as pin E7. Connect GA, GP1, GP2 and GP3 to a single point as close to the IC as possible.
E6
E7
GP2
GP2
The Ground Path of the Step-down DC/DC REG2. Same function as pin E6.
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