Diodes APM8600 User Manual
Apm8600
APM8600
SINGLE CELL LINEAR LITHIUM BATTERY CHARGER
WITH 28V OVP AND PROGRAMMABLE CHARGE TIMER
APM8600
Document number: DS35140 Rev. 1 - 2
1 of 14
December 2010
© Diodes Incorporated
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Description
The APM8600 is a linear Li-Ion charger for portable
equipment that is optimized for small form-factor
applications.
The charge algorithm in the APM8600 covers all the charge
requirements for a single Li-Ion battery cell. Included is pre-
charging for deeply discharged cells, constant current /
constant voltage fast charging and a top-off feature to bring
the cell safely to a full-charge level.
The battery is constantly monitored for overvoltage, charge
time and cell temperature to ensure safe charging. A fault is
triggered once the charge time exceeds a value that is
programmable using a single capacitor and the temperature
measurement is achieved through a thermistor positioned
close to the battery cell.
The APM8600 is packaged in U-DFN3030-14 package with
a thermal pad.
Applications
• Handheld Consumer Devices
• Cell Phones, PDAs, MP3 Players
• Handheld
Test
Equipment
• Digital Still Cameras
• Multimedia
players
Pin Assignments
Figure 1 Pin Out
Features
• Linear Lithium Ion / Lithium Polymer charging IC
• Supply input safe up to 28V
• Fast charging with maximum current of 1A
• Resistor-programmable charging current
• Resistor programmable end-of-charge
• Capacitor programmable charge timer
• Three charge indicator pins for a status display
• Thermal
protection
• DFN3030-14: Available in “Green” Molding Compound
(No Br, Sb)
• Lead Free Finish/ RoHS Compliant (Note 1)
Note: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS
exemptions applied. Please visit our website at
Typical Application Circuit
Figure 2. Typical Application Circuit