RT9536H Datasheet, PDF (1/15 Pages) Richtek Technology Corporation – Linear Single Cell Li-Ion Battery Charger IC for Portable

®
RT9536H
Linear Single Cell Li-Ion Battery Charger IC for Portable
Applications
General Description
The RT9536H is a fully integrated single cell Li-ion
battery charger IC ideal for portable applications. The
RT9536H optimizes the charging task by using a control
algorithm including pre-charge mode, fast charge mode
and constant voltage mode. The input voltage range of the
VIN pin can be as high as 28V. When the input voltage
exceeds the OVP threshold, it will turn off the charging
MOSFET to avoid overheating of the chip.
In RT9536H, the maximum charging current can be
programmed with an external resistor. For USB application,
the user can set the current to 100mA/500mA through
the EN/SET pin. For the factory mode, the RT9536H can
allow 4.25V or 4.4V/2.3A power pass through to support
system operation. It also provides a 50mA LDO to support
the power of peripheral circuit. The internal thermal
feedback circuit regulates the die temperature to optimize
the charge rate for all ambient temperatures. The RT9536H
provides protection functions such as under voltage
protection, over voltage protection for VIN supply and
thermal protection for battery temperature.
The RT9536H is available in a WDFN-10L 3x2 package to
achieve optimized solution for PCB space and thermal
considerations.
Features
 28V Maximum Rating for DC Adapter
 Internal Integrated Power MOSFETs
 Support 4.25V or 4.4V/2.3A Factory Mode
 50mA Low Dropout Voltage Regulator
 Status Pin Indicator
 Programmed Charging Current
 Under Voltage Lockout
 Over Voltage Protection
 Thermal Feedback Optimized Charge Rate
 RoHS Compliant and Halogen Free
Applications
 Cellular Phones
 Digital Cameras
 PDAs and Smart Phones
 Portable Instruments
Marking Information
06= : Product Code
06=YM
DNN
YMDNN : Date Code
Simplified Application Circuit
Adapter or USB
RT9536H
VIN
BATT
C_IN
BATT
R_ISET
R_IEOC
PGB
ISET
IEOC
CHGSB
LDO
EN/SET
GND
C_OUT
+
BATT
Copyright ©2015 Richtek Technology Corporation. All rights reserved.
DS9536H-00 June 2015
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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