Diodes APM8601 Manuel d'utilisateur

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APM8601
DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERY
CHARGER WITH 28V OVP and PROGRAMMABLE CHARGE
TIMER
APM8601
Document number: DS35138 Rev. 1 - 2
1 of 14
www.diodes.com
December 2010
© Diodes Incorporated
NEW PRODUCT
Description
The APM8601 is a dual input channel linear Li-Ion charger for
portable equipment that is optimized for small form-factor
applications.
The charge algorithm in the APM8601 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 APM8601 automatically selects the USB or DC input,
depending on which is valid (DC has priority if both are valid).
The charging current from the USB input is set to 100mA or
500mA based on the logic level of the USEL input.
The APM8601 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
100mA/500mA USB charge current selected with USEL
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
http://www.diodes.com/products/lead_free.html.
Typical Application Circuit
Figure 2. Typical Application Circuit
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Résumé du contenu

Page 1 - Figure 1. Pin Out

APM8601DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERYCHARGER WITH 28V OVP and PROGRAMMABLE CHARGETIMER APM8601 Document number: DS35138 Rev. 1 - 2

Page 2

APM8601DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERYCHARGER WITH 28V OVP and PROGRAMMABLE CHARGETIMER APM8601 Document number: DS35138 Rev. 1 - 2

Page 3

APM8601DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERYCHARGER WITH 28V OVP and PROGRAMMABLE CHARGETIMER APM8601 Document number: DS35138 Rev. 1 - 2

Page 4

APM8601DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERYCHARGER WITH 28V OVP and PROGRAMMABLE CHARGETIMER APM8601 Document number: DS35138 Rev. 1 - 2

Page 5 - 5 of 14

APM8601DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERYCHARGER WITH 28V OVP and PROGRAMMABLE CHARGETIMER APM8601 Document number: DS35138 Rev. 1 - 2

Page 6 - POK , CHG, FLT

APM8601DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERYCHARGER WITH 28V OVP and PROGRAMMABLE CHARGETIMER APM8601 Document number: DS35138 Rev. 1 - 2

Page 7 - Functional State Diagram

APM8601DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERYCHARGER WITH 28V OVP and PROGRAMMABLE CHARGETIMER APM8601 Document number: DS35138 Rev. 1 - 2

Page 8 - 0 315Ω 3.94k 28.3k R

APM8601DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERYCHARGER WITH 28V OVP and PROGRAMMABLE CHARGETIMER APM8601 Document number: DS35138 Rev. 1 - 2

Page 9

APM8601DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERYCHARGER WITH 28V OVP and PROGRAMMABLE CHARGETIMER APM8601 Document number: DS35138 Rev. 1 - 2

Page 10 - CHARGING PROCESS DESCRIPTION

APM8601DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERYCHARGER WITH 28V OVP and PROGRAMMABLE CHARGETIMER APM8601 Document number: DS35138 Rev. 1 - 2

Page 11 - APM8601FB-7 U-DFN3030-14 P4

APM8601DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERYCHARGER WITH 28V OVP and PROGRAMMABLE CHARGETIMER APM8601 Document number: DS35138 Rev. 1 - 2

Page 12 - Top View

APM8601DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERYCHARGER WITH 28V OVP and PROGRAMMABLE CHARGETIMER APM8601 Document number: DS35138 Rev. 1 - 2

Page 13 - © Diodes Incorporated

APM8601DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERYCHARGER WITH 28V OVP and PROGRAMMABLE CHARGETIMER APM8601 Document number: DS35138 Rev. 1 - 2

Page 14

APM8601DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERYCHARGER WITH 28V OVP and PROGRAMMABLE CHARGETIMER APM8601 Document number: DS35138 Rev. 1 - 2

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