ISL6293-2EVAL1

ISL6293-2EVAL1 Datasheet

ISL6293

Part	Datasheet
ISL6293-2EVAL1	ISL6293-2EVAL1 (pdf)

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Data Sheet January 4, 2006 ISL6293 FN9180.1 Li-ion/Li Polymer Battery Charger Accepting Two Power Sources The ISL6293 is a fully integrated low-cost single-cell Li-ion or Li-polymer battery charger. The charger accepts two power inputs, normally one from a USB Universal Serial Bus port and another one from a desktop cradle. The ISL6293 is an ideal charger for smart handheld devices that need to communicate with a personal computer via USB. The ISL6293 features 28V and 7V maximum voltages for the cradle and the USB inputs respectively. The 28V rating allows low-cost adapters be safely used. When both inputs are powered, the cradle input is used to charge the battery. The charge current is independently programmable for both inputs with two small resistors. One additional USBP pin allows the selection of high-power or low-power port for the USB input. The charger is self-protected against over temperature. If the die temperature rises above 100°C, a thermal foldback function reduces the charge current automatically to prevent further temperature rise. The charger preconditions the battery with low current when the battery voltage is below 2.6V. The charger has two indication pins. The PPR power present pin outputs an open-drain logic LOW when either the cradle or the USB input power is attached. The CHG charge pin is also an open-drain output that indicates a logic LOW when the charge current is above a minimum current level. When the charge current is below the minimum current, the charger remains in operation but the CHG pin indicates a logic HIGH signal. Ordering Information TEMP. PART RANGE PART NUMBER MARKING °C PACKAGE PKG. DWG. # ISL6293-2CR 93-2 -40 to 85 10 Ld 3x3 DFN L10.3x3 ISL6293-2CR-T 93-2 10 Ld 3x3 DFN Tape and Reel ISL6293-2CRZ 932Z Note -40 to 85 10 Ld 3x3 DFN L10.3x3 Pb-free ISL6293-2CRZ-T 932Z Note 10 Ld 3x3 DFN Tape and Reel Pb-free NOTE Intersil Pb-free plus anneal products employ special Pb-free material sets molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. • Complete Charger for Single-Cell Li-ion/Polymer Batteries • Accept Two Power Sources • Low Component Count - Integrated Pass Element - Integrated Charge-Current Sensor with 10% Accuracy - No External Blocking Diode Required • Charge Current Thermal Foldback for Thermal Protection • 28V Maximum Voltage for the Cradle Input • Charge Indication • Adapter Presence Indication • Less than 1µA Leakage Current off the Battery when No Input Power Attached • Ambient Temperature Range -40°C to 85°C • Thermally-Enhanced 3x3 DFN Package • Pb-Free Plus Anneal Available RoHS Compliant • Smart Handheld Devices • Cell Phones, PDAs, MP3 Players • Digital Still Cameras • Handheld Test Equipment Related Literature • Technical Brief TB363 “Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices SMDs ” • Technical Brief TB389 “PCB Land Pattern Design and Surface Mount Guidelines for QFN Packages” Pinout ISL6293-2 10 LD 3X3 DFN TOP VIEW CRDL 1 USB 2 PPR 3 CHG 4 EN 5 10 BAT 9 ICDL 8 GND 7 USBP 6 IUSB CAUTION These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 \| Intersil and design is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2004, All Rights Reserved All other trademarks mentioned are the property of their respective owners. Block Diagram ISL6293 CRDL Temp Monitor CPPR ICDL IUSB USBP PPR CHG Reference Current Control CPPR USB CRDL BAT LBAT Control VREF

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Data Sheet

January 4, 2006

ISL6293

FN9180.1

Li-ion/Li Polymer Battery Charger Accepting Two Power Sources

The ISL6293 is a fully integrated low-cost single-cell Li-ion or Li-polymer battery charger. The charger accepts two power inputs, normally one from a USB Universal Serial Bus port and another one from a desktop cradle. The ISL6293 is an ideal charger for smart handheld devices that need to communicate with a personal computer via USB.

The ISL6293 features 28V and 7V maximum voltages for the cradle and the USB inputs respectively. The 28V rating allows low-cost adapters be safely used. When both inputs are powered, the cradle input is used to charge the battery. The charge current is independently programmable for both inputs with two small resistors. One additional USBP pin allows the selection of high-power or low-power port for the USB input. The charger is self-protected against over temperature. If the die temperature rises above 100°C, a thermal foldback function reduces the charge current automatically to prevent further temperature rise. The charger preconditions the battery with low current when the battery voltage is below 2.6V. The charger has two indication pins. The PPR power present pin outputs an open-drain logic LOW when either the cradle or the USB input power is attached. The CHG charge pin is also an open-drain output that indicates a logic LOW when the charge current is above a minimum current level. When the charge current is below the minimum current, the charger remains in operation but the CHG pin indicates a logic HIGH signal.
Ordering Information

TEMP. PART RANGE PART NUMBER MARKING °C

PACKAGE

PKG. DWG. #

ISL6293-2CR 93-2
-40 to 85 10 Ld 3x3 DFN L10.3x3

ISL6293-2CR-T 93-2
10 Ld 3x3 DFN Tape and Reel

ISL6293-2CRZ 932Z Note
-40 to 85 10 Ld 3x3 DFN L10.3x3 Pb-free

ISL6293-2CRZ-T 932Z Note
10 Ld 3x3 DFN Tape and Reel Pb-free

NOTE Intersil Pb-free plus anneal products employ special Pb-free material sets molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
• Complete Charger for Single-Cell Li-ion/Polymer Batteries
• Accept Two Power Sources
• Low Component Count
- Integrated Pass Element - Integrated Charge-Current Sensor with 10% Accuracy - No External Blocking Diode Required
• Charge Current Thermal Foldback for Thermal Protection
• 28V Maximum Voltage for the Cradle Input
• Charge Indication
• Adapter Presence Indication
• Less than 1µA Leakage Current off the Battery when No Input Power Attached
• Ambient Temperature Range -40°C to 85°C
• Thermally-Enhanced 3x3 DFN Package
• Pb-Free Plus Anneal Available RoHS Compliant
• Smart Handheld Devices
• Cell Phones, PDAs, MP3 Players
• Digital Still Cameras
• Handheld Test Equipment

Related Literature
• Technical Brief TB363 “Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices SMDs ”
• Technical Brief TB389 “PCB Land Pattern Design and Surface Mount Guidelines for QFN Packages”

Pinout

ISL6293-2 10 LD 3X3 DFN

TOP VIEW

CRDL 1 USB 2 PPR 3 CHG 4 EN 5
10 BAT 9 ICDL 8 GND 7 USBP 6 IUSB

CAUTION These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil and design is a registered trademark of Intersil Americas Inc.

Copyright Intersil Americas Inc. 2004, All Rights Reserved

All other trademarks mentioned are the property of their respective owners.

Block Diagram

ISL6293

CRDL

Temp Monitor

CPPR

ICDL IUSB USBP

PPR CHG

Reference

Current Control

CPPR

USB CRDL BAT LBAT

Control

VREF

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Datasheet ID: ISL6293-2EVAL1 639176