RT4832A
Absolute Maximum Ratings (Note 1)
Supply Voltage (VIN) --------------------------------------------------------------------------------------------------0.3V to 6V
LED Boost Output Voltage (LEDOUT) ----------------------------------------------------------------------------0.3V to 37V
LED Switching Voltage (LEDSW) ----------------------------------------------------------------------------------0.3V to 37V
LED Current Source Voltage (LED1, LED2)---------------------------------------------------------------------0.3V to 36V
LCM Boost Output Voltage (LCMOUT, POS) -------------------------------------------------------------------0.3V to 6.3V
LCM Switching Voltage (LCMSW, C1)----------------------------------------------------------------------------0.3V to 6.3V
Negative Charge Pump Switching Voltage (C2)----------------------------------------------------------------0.3V to 6.5V
Negative Charge Pump Voltage (CPOUT)-----------------------------------------------------------------------0.3V to 6.5V
Flash Switching Voltage (FlashSW) -------------------------------------------------------------------------------0.3V to 6V
Flash Output Voltage (FlashOUT)----------------------------------------------------------------------------------0.3V to 6V
Flash LED Voltage (FlashLED) -------------------------------------------------------------------------------------0.3V to 6V
Digital Clock Control Pins (SDA, SCL, PWM)-------------------------------------------------------------------0.3V to 6V
Other Pins (EN, ENM, ENP, Txmask, STRB) -------------------------------------------------------------------0.3V to 6V
Power Dissipation, PD @ TA = 25C
WL-CSP-30B 2.24x2.64 (BSC) ------------------------------------------------------------------------------------3.15W
Package Thermal Resistance
(Note 2)
WL-CSP-30B 2.24x2.64 (BSC), JA ------------------------------------------------------------------------------31.7C/W
Lead Temperature (Soldering, 10 sec.)--------------------------------------------------------------------------260C
Junction Temperature------------------------------------------------------------------------------------------------150C
Storage Temperature Range---------------------------------------------------------------------------------------65C to 150C
ESD Susceptibility
(Note 3)
HBM (Human Body Model) -----------------------------------------------------------------------------------------2kV
Recommended Operating Conditions
(Note 4)
Supply Voltage, VIN --------------------------------------------------------------------------------------------------2.5V to 5.5V
Ambient Temperature Range---------------------------------------------------------------------------------------40C to 85C
Junction Temperature Range --------------------------------------------------------------------------------------40C to 125C
Electrical Characteristics
(VIN = 3.6V, CVIN = 10F, TA = 25C, unless otherwise specified)
Parameter
Power Supply
Symbol
Test Conditions
Min Typ Max Unit
Input Voltage Range
UVLO
VIN
2.5
--
--
5.5
2.3
200
V
V
UV
VIN falls
2.2
50
UVLO Hysteresis Voltage
UVhys
VIN rises after UVLO
30
mV
LCD Bias enable, Back Light turned
off, EN = H, LCMOUT = 5.2V
VIN Supply Current
IQ
--
0.5
--
mA
VIN Shutdown Current
Thermal Shutdown
ISHDN
TSD
VIN = 5V, EN = L
--
--
1
--
--
A
C
145
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is a registered trademark of Richtek Technology Corporation.
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6
DS4832A-00 January 2017
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