ISL9301 High Input Voltage Charger With Power Path Management

ISL9301

Printer Friendly Version

High Input Voltage Charger With Power Path Management

Datasheets,
Related Docs
& Simulations

Ordering Information

iBuy direct from Intersil	iBuy direct - out of stock	Request samples
Check distributor inventory	Available in RoHS/Pb-Free

Part No.

Design-In
Status

Temp.

Package

MSL

Price
US $

ISL9301EVAL1Z

Active

Eval Board

N/A

ISL9301IRZ

Active

Ind

10 Ld DFN

1.87

ISL9301IRZ-T

Active

Ind

10 Ld DFN T+R

1.87

The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in today's market are fluid and may change without notice.

MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020

SMD = Standard Microcircuit Drawing

Description

The ISL9301 is a fully integrated high input voltage single-cell Li-ion battery charger with power path management function. This charger performs the CC/CV charge function required by Li-ion batteries. The charger accepts an input voltage up to 28V but is disabled when the input voltage exceeds 10.5V OVP threshold. The 28V rating eliminates the overvoltage protection circuit required in a low-voltage charger. The charge current and the end-of-charge (EOC) current are programmable with external resistors. When the battery voltage is lower than 2.8V, the charger preconditions the battery with 16% of the programmed charge current. When the charge current reduces to the programmable EOC current level during the CV charge phase, the EOC indicator (CHG) will toggle to logic LOW to indicate the end-of-charge condition. The charger will continue to charge until the user programmed timeout interval has elapsed, then the charger is terminated.

The ISL9301 uses separate power paths to supply the system load and charge the battery. This feature allows the system to immediately operate with a completely discharged battery. This feature also allows the charge to terminate when the battery is full while continuing to supply the system with the input source, thus minimizing unnecessary charge/discharge cycles and improving the battery life.

Two indication pins (PPR and CHG) allow simple interface to a microprocessor or LEDs.

Key Features

Complete Charger for Single-Cell Li-ion/Polymer Batteries
Power Path Management Optimize Charge and System Currents
Intelligent Timeout Interval Based on Actual Charge Current
Integrated Disconnect Switch to Disconnect the Battery
1% Charger Output Voltage Accuracy
Programmable Charge Current
Programmable End-of-Charge Current
Charge Current Thermal Foldback for Thermal Protection
Trickle Charge for Fully Discharged Batteries
28V Maximum Voltage at VIN pin
Power Presence and Charge Indications
Ambient Temperature Range: -40°C to +85°C
10 Ld 3x3 DFN Package
Pb-Free (RoHS Compliant)

Related Documentation

Datasheet(s):
High Input Voltage Charger With Power Path Management

Evaluation Board(s):
ISL9301EVAL1Z Evaluation Board Application Manual

Parametric Data


V_OUT (typ) (V)		4.5

Voltage Accuracy (%)		1

V_IN1 (max) (V)		28

V_IN2 (max) (V)		N/A

I_OUT1 (max) (A)		.8

I_OUT2 (max) (A)		N/A

Safety Timer		Y

Self Termination		Y

Accepts CC Adapter		Y

V_IN1 Trickle Charge (min) (% CC)		6

V_IN2 Trickle Charge (min) (% CC)		N/A

Thermal Regulation		Y

Functions (Pin)		Power Presence, Charge Indication, Battery Disconnect, IREF, IMIN Set, Time Set

Application Block Diagrams

Applications

Mobile Phones
Blue-Tooth Devices
PDAs
MP3 Players
Stand-Alone Chargers
Other Handheld Devices

Related Devices

Parametric Table

	ISL6291		Li-ion/Li Polymer Linear Battery Charger
	ISL6292		Li-ion/Li Polymer Battery Charger
	ISL6292B		Li-ion/Li Polymer Battery Charger
	ISL6292C		Li-ion/Li Polymer Battery Charger
	ISL6292D		Li-ion/Li Polymer Battery Charger
	ISL6293		Li-ion/Li Polymer Battery Charger Accepting Two Power Sources
	ISL6294		High Input Voltage Charger
	ISL6294A		High Input Voltage Charger
	ISL6297		Li-ion/Li Polymer Battery Charger
	ISL6298		Li-ion/Li-Polymer Battery Charger
	ISL6299A		Li-ion/Li-Polymer Battery Charger Accepting Two Power Sources
	ISL9201		Li-ion Battery Charger
	ISL9203A		Li-ion/Li Polymer Battery Charger
	ISL9203R5220		Li-ion/Li Polymer Battery Charger
	ISL9204		High Input Voltage Charger
	ISL9205		Li-ion Battery Charger
	ISL9205A		Li-ion Battery Charger
	ISL9205B		Li-ion Battery Charger
	ISL9205C		Li-ion Battery Charger
	ISL9205D		Li-ion Battery Charger
	ISL9214		Li-ion/Li-Polymer Battery Charger Accepting Two Power Sources
	ISL9214A		Li-ion/Li-Polymer Battery Charger Accepting Two Power Sources
	ISL9219		Li-ion Battery Charger
	ISL9221		Dual Input Lithium Ion Battery Charger with OVP USB Bypass and 10mA LDO
	ISL9222A		High Input Voltage Charger
	ISL9228		Dual Input Li-ion/Li-Polymer Battery Charger With Battery Removal Detection