ACT8770 View Datasheet(PDF) - Active-Semi, Inc
Part Name
Description
Manufacturer
ACT8770 Datasheet PDF : 2 Pages
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ACT8770
Product Brief, 19-Feb-08
PRODUCT OPTIONS
Block
CHGR
REG1
REG2
REG3
REG4
REG5
Function
Battery Charger
Step-Down DC/DC
Step-Down DC/DC
LDO
LDO
LDO
Output Voltagec
4.20V (4.10V to 4.30V available)
0.645V to 3.3V
1.4V to 3.7V
Capabilityd
Selectable up to 1A
350mA
550mA
250mA
250mA
250mA
c: Output voltage options detailed in this table represent standard voltage options, and are available for samples or production orders..
Contact Active-Semi for more information regarding semi-custom output voltage combinations.
d: Contact factory for additional available products or custom requirements.
FUNCTIONAL BLOCK DIAGRAM
VSYS
AC Adaptor
USB
4.3V to 6V VIN
BODY AND
VSYS
CONTROL
nSTAT 4.0V
VINUVLO
ACIN
FLOAT
OUT2
CHGLEV
CHARGE STATUS
Charge
Control
nMSTR
VSYS
VINUVLO
ACT8770
BAT
CURRENT
SENSE
VOLTAGE
SENSE
PRE-
CONDITION
THERMAL
REGULATION
110°C
2.9V
VP1
Li+ Battery
+
To Battery
SW1
OUT1
GP12
VP2
OUT1
To Battery
PUSH
BUTTON
OUT2
nIRQ
System
Control
SW2
OUT2
GP12
OUT2
INL
To Battery
ON1
ON3
ON5
LDO
REG3
LDO
REG4
OUT3
OUT4
OUT3
OUT4
GA
OUT5
LDO
REG5
OUT5
Innovative Products. Active Solutions.
-2-
www.active-semi.com
Copyright © 2008 Active-Semi, Inc.
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