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PDF RT9536H Data sheet ( Hoja de datos )
| Número de pieza | RT9536H | |
| Descripción | Linear Single Cell Li-Ion Battery Charger IC | |
| Fabricantes | Richtek Technology | |
| Logotipo |  |
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®
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
CIN
BATT
RISET
RIEOC
PGB
ISET
IEOC
CHGSB
LDO
EN/SET
GND
COUT
+
BATT
Copyright ©2015 Richtek Technology Corporation. All rights reserved.
DS9536H-00 June 2015
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
P1
1 page  
RT9536H
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Pre-Charge Current
End of Charge Current (EOC)
IEOC Setting Current
IEOC Setting KEOC
IPRECHG
USB100 Mode
USB500 Mode or ISET Mode,
ratio of fast-charge current
IEOC
90 95
15 20
--
REOC /
KEOC
70 75
180 200
100
25
--
80
220
mA
%
%
A
/%
VIN Power FET RDS(ON)
IOUT = 1A
--
280 512
mV
ISET Set Voltage
VISET
-- 1.5 --
V
ISET Short Protect Threshold
320 -- 460
ISET Short Protect Deglitch
Time
ISET Short Protect Maximum
Current
-- 1.5 -- ms
-- 2 -- A
As ISET Mode, RISET = 530 0.9 1 1.1 A
VIN Charge Current
ICHRG As USB100 Mode
90 95 100 mA
As USB500 Mode
380 395 415 mA
EN/SET Pull Low Resistor
-- 200 --
k
EN/SET Voltage
Logic-High
Logic-Low
LDO On-Resistance
VIH
VIL
RDS(ON)
1.4 --
--
V
-- -- 0.4
36
LDO Output Voltage
VLDO
4.75 4.9 5.05
V
LDO Maximum Output Current
60 120 180 mA
Factory Mode VOUT
VCV = 4.25V
VCV = 4.4V
4.165
4.312
4.25
4.4
4.335
4.488
V
Factory Mode Maximum Output
Current
2.3 -- -- A
EN/SET Off Time
Timer to disable chip
2 -- -- ms
EN/SET Lock Time
Timer to lock pulse count
1.5 --
-- ms
Logic-High
EN/SET Duration
Logic-Low
100 -- 700
s
100 -- 700
EN/SET Set Time
Timer to set VCV = 4.4V
750 -- 1000 s
Note 1. Stresses beyond those listed “Absolute Maximum Ratings” may cause permanent damage to the device. These are
stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in
the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may
affect device reliability.
Note 2. θJA is measured at TA = 25°C on a high effective thermal conductivity four-layer test board per JEDEC 51-7. θJC is
measured at the exposed pad of the package.
Note 3. The device is not guaranteed to function outside its operating conditions.
Copyright ©2015 Richtek Technology Corporation. All rights reserved.
DS9536H-00 June 2015
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
5
5 Page 
E. USB500 Mode with CV = 4.4V
tHigh
EN/SET
tLow
tCV_Set
tWait
Four pulses to set USB500 mode
Besides, wait the time, tWait and send a
pulse of tCV_SET width for CV = 4.4V
F. ISET Mode with CV = 4.4V
EN/SET
tHigh tCV_Set
tWait
G. USB100 Mode with CV = 4.4V
EN/SET
tHigh
tCV_Set
tWait
One pulse to set ISET mode
Besides, wait the time, tWait and send a
pulse of tCV_SET width for CV = 4.4V
Two pulses to set USB100 mode
Besides, wait the time, tWait and send a
pulse of tCV_SET width for CV = 4.4V
H. PTM Mode with CV = 4.4V
tHigh
EN/SET
tLow
tCV_Set
tWait
Three pulses to set PTM mode
Besides, wait the time, tWait and send a
pulse of tCV_SET width for CV = 4.4V
100μs < tHigh,tLow < 700μs, 1.5ms < tWait 750μs < tCV_Set < 1ms
Figure 1 (b). CV is 4.4V
Table 1. Pulse Counting Map for EN/SET Interface
Pulses Charge Condition MODE Control
0 USB500 Mode Charge Current Limit
1
ISET Mode
Charge Current Limit
2 USB100 Mode Charge Current Limit
3 Factory Mode
Enabled
4 USB500 Mode Charge Current Limit
RT9536H
Copyright ©2015 Richtek Technology Corporation. All rights reserved.
DS9536H-00 June 2015
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
11
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| PDF Descargar | [ Datasheet RT9536H.PDF ] | |
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