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RT4532WSC датащи(PDF) 5 Page - Richtek Technology Corporation

номер детали RT4532WSC
подробное описание детали  High Efficiency Backlight LED Driver
PDF  12 Pages
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производитель  RICHTEK [Richtek Technology Corporation]
домашняя страница  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT4532WSC датащи(HTML) 5 Page - Richtek Technology Corporation

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5
RT4532
DS4532-01 August 2015
www.richtek.com
©
Copyright 2015 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
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.
Devices are ESD sensitive. Handling precaution is recommended.
Note 4.
The device is not guaranteed to function outside its operating conditions.
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Power Switch
N-MOSFET On-Resistance
RDS(ON)_N VIN = 3.6V
100
200
300
m
N-MOSFET Current Limit
IOCP
1
1.2
1.4
A
N-MOSFET Leakage
Current
ILEAK
LX = 24V, No Switching
--
--
1
A
Protection Function
Over Voltage Protection
OVP
Reg0x02 [7] = 0
14
16
18
V
Reg0x02 [7] = 1
23
24
25
V
Thermal Shutdown
Threshold
TSD
Thermal latch
--
150
--
°C
Logic Control
EN Input
Voltage
Logic-High
VENH
1.05
--
--
V
Logic-Low
VENL
--
--
0.4
PWM Input
Voltage
Logic-High
VPWML
1.05
--
--
V
Logic-Low
VPWML
--
--
0.4
SCL Input
Voltage
Logic-High
VSCLH
1.3
--
--
V
Logic-Low
VSCLL
--
--
0.4
SDA Input
Voltage
Logic-High
VSDAH
1.3
--
--
V
Logic-Low
VSDAL
--
--
0.4
EN Pull-Down Resistance
--
400
--
k
PWM Pull-Down Resistance
--
400
--
k
Clock Frequency of SCL
fSCL
--
--
400
kHz



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