®
RT9536H
Linear Single Cell Li-Ion Battery Charger IC for Portable
Applications
General Description
Features
28V Maximum Rating for DC Adapter
The RT9536H is a fully integrated single cell Li-ion
battery charger IC ideal for portable applications. The
Internal Integrated Power MOSFETs
RT9536H optimizes the charging task by using a control
Support 4.25V or 4.4V/2.3A Factory Mode
algorithm including pre-charge mode, fast charge mode
50mA Low Dropout Voltage Regulator
and constant voltage mode. The input voltage range of the
Status Pin Indicator
VIN pin can be as high as 28V. When the input voltage
Programmed Charging Current
exceeds the OVP threshold, it will turn off the charging
Under Voltage Lockout
MOSFET to avoid overheating of the chip.
Over Voltage Protection
Thermal Feedback Optimized Charge Rate
RoHS Compliant and Halogen Free
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.
Applications
Cellular Phones
Digital Cameras
PDAs and Smart Phones
Portable Instruments
Marking Information
06= : Product Code
YMDNN : Date Code
06=YM
The RT9536H is available in a WDFN-10L 3x2 package to
achieve optimized solution for PCB space and thermal
considerations.
DNN
Simplified Application Circuit
RT9536H
Adapter or USB
BATT
VIN
BATT
+
C
C
OUT
IN
PGB
CHGSB
BATT
ISET
LDO
R
ISET
EN/SET
IEOC
R
IEOC
GND
Copyright 2015 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS9536H-01 August 2015
www.richtek.com
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