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RT8532GQW Datasheet(PDF) 4 Page - Richtek Technology Corporation

Part # RT8532GQW
Description  6-String 43V White LED Driver with Boost Regulator
Download  14 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8532GQW Datasheet(HTML) 4 Page - Richtek Technology Corporation

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4
RT8532
www.richtek.com
DS8532-04
January 2014
©
Copyright
2014 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Electrical Characteristics
Recommended Operating Conditions
(Note 4)
Supply Input Voltage, VIN ----------------------------------------------------------------------------------------------- 2.5V to 24V
Junction Temperature Range --------------------------------------------------------------------------------------------
−40°C to 125°C
Ambient Temperature Range --------------------------------------------------------------------------------------------
−40°C to 85°C
Absolute Maximum Ratings
(Note 1)
Supply Input Voltage, VIN to GND ------------------------------------------------------------------------------------
−0.3V to 26.5V
EN, PWM, ISET, COMP, MIX, FREQ to GND ----------------------------------------------------------------------
−0.3V to 26.5V
LX, OVP, LED1 to LED6 to GND ---------------------------------------------------------------------------------------
−0.3V to 48V
LX to GND -------------------------------------------------------------------------------------------------------------------
−0.3V to 48V
< 500ns ----------------------------------------------------------------------------------------------------------------------
−1V to 48V
VDC to GND ----------------------------------------------------------------------------------------------------------------
−0.3V to 7V
Power Dissipation, PD @ TA = 25
°C
WQFN
−20L 3x3 ------------------------------------------------------------------------------------------------------------ 1.471W
Package Thermal Resistance (Note 2)
WQFN
−20L 3x3, θJA ------------------------------------------------------------------------------------------------------ 68°C/W
WQFN
−20L 3x3, θJC------------------------------------------------------------------------------------------------------ 7.5°C/W
Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------- 260
°C
Junction Temperature ----------------------------------------------------------------------------------------------------- 150
°C
Storage Temperature Range --------------------------------------------------------------------------------------------
−65°C to 150°C
ESD Susceptibility (Note 3)
HBM (Human Body Model) ---------------------------------------------------------------------------------------------- 2kV
MM (Machine Model) ----------------------------------------------------------------------------------------------------- 200V
(VIN = 5V, TA = 25
°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
VIN Quiescent Current
IVIN
PWM = COMP = 0V, Not Switching
--
3
--
mA
IVIN_SW
PWM = COMP = 2V, Switching
--
4
--
VIN Shutdown Current
ISHDN
VIN = 4.5V, EN = 0V
--
--
10
A
VIN Under Voltage Lockout
Threshold
VUVLO
VIN Rising
--
2.3
--
V
VIN Falling
--
2.1
--
PWM Dimming Frequency
fPWM
0.1
--
20
kHz
Control Input
EN, PWM Input
Voltage
High
VIH
VIN = 2.5V to 24V
1.3
--
24
V
Low
VIL
VIN = 2.5V to 24V
--
--
0.5
Boost Converter
Switching Frequency
fSW
RFSW = 22k
0.8
1
1.2
MHz
RFSW = 51k
0.4
0.5
0.6
LX On Resistance
(N-MOSFET)
RLX
VIN > 4.5V
0.18
0.2
0.22


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