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A4062 Schematic ( PDF Datasheet ) - AiT Semiconductor

Teilenummer A4062
Beschreibung STANDALONE Li-ION SWITCH MODE BATTERY CHARGER
Hersteller AiT Semiconductor
Logo AiT Semiconductor Logo 




Gesamt 10 Seiten
A4062 Datasheet, Funktion
AiT Semiconductor Inc.
www.ait-ic.com
A4062
BATTERY MANAGEMENT
STANDALONE Li-ION SWITCH MODE BATTERY CHARGER
DESCRIPTION
FEATURES
The A4062 is a complete battery charger controller
for two (8.4V) cell lithium-ion batteries. With a 500kHz
switching frequency, the A4062 provides a small,
simple and efficient solution to fast charge Li-Ion
batteries from a wide range of supply voltages. An
external sense resistor sets the charge current. An
internal resistor divider and precision reference set
the final float voltage with ±1% accuracy.
When the input supply is removed, the A4062
automatically enters a low current sleep mode,
dropping the battery drain current to 20μA. An internal
comparator detects the near end-of-charge condition
while an internal timer sets the total charge time and
terminates the charge cycle.
Wide Input Supply Range: 8.9V to 20V
Current Mode PWM Controller DC-DC
±1% Charge Voltage Accuracy
±5% Charge Current Accuracy
End-of-Charge Current Detection Output
Charge Termination Timer
Constant Switching Frequency for Minimum
Noise
Automatic Battery Recharge
Automatic Shutdown When Input Supply is
Removed
Automatic Trickle Charging of Low Voltage
Batteries
Stable with Ceramic Output Capacitor
Available in SOP8 Package
APPLICATION
The chip includes an internal benchmark, bias,
voltage comparator and a temperature sensing
modules.
The A4062 is available in SOP8 package.
ORDERING INFORMATION
Package Type
Part Number
SOP8
A4062M8R-XX
M8
A4062M8VR-XX
XX: Output Voltage
Note
V: Halogen free Package
R: Tape & Reel
AiT provides all RoHS products
Suffix “ V “ means Halogen free Package
Mobile Phone
Digital Cameras
MP4 players
Bluetooth applications
Electronic Dictionary
Portable devices
A variety of chargers
TYPICAL APPLICATION
1A two cell lithium-ion battery applications
REV1.1
- JAN 2012 RELEASED, JUL 2012 UPDATED -
-1-






A4062 Datasheet, Funktion
AiT Semiconductor Inc.
www.ait-ic.com
A4062
BATTERY MANAGEMENT
STANDALONE Li-ION SWITCH MODE BATTERY CHARGER
TEST CIRCUIT
Test circuit 1
Test circuit 2
Test circuit 3
REV1.1
- JAN 2012 RELEASED, JUL 2012 UPDATED -
-6-

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