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RT9052 Datasheet(PDF) 3 Page - Richtek Technology Corporation

Part # RT9052
Description  Single Channel LED Current Source Controller
PDF  9 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9052 Datasheet(HTML) 3 Page - Richtek Technology Corporation

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RT9052
3
DS9052-01 April 2011
www.richtek.com
Electrical Characteristics
(VCC = 5V/12V, TA = 25
°C, unless otherwise specified)
Absolute Maximum Ratings (Note 1)
Supply Input Voltage, VCC ---------------------------------------------------------------------------------------------- 15V
DIM Voltage ---------------------------------------------------------------------------------------------------------------- 7V
FAULT Output Voltage --------------------------------------------------------------------------------------------------- 7V
Power Dissipation, PD @ TA = 25
°C
SOT-23-6 -------------------------------------------------------------------------------------------------------------------- 0.4W
Package Thermal Resistance (Note 2)
SOT-23-6,
θJA -------------------------------------------------------------------------------------------------------------- 250°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 Mode) ---------------------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ----------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions
(Note 4)
Supply Input Voltage, VCC ---------------------------------------------------------------------------------------------- 3.8V to 13.5V
DIM Voltage ---------------------------------------------------------------------------------------------------------------- 0V to 5.5V
Junction Temperature Range -------------------------------------------------------------------------------------------
−40°C to 125°C
Ambient Temperature Range -------------------------------------------------------------------------------------------
−40°C to 85°C
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
UVLO Threshold
VCC Rising
3.15
3.4
3.65
V
UVLO Hysteresis
0.1
0.2
0.3
V
VCC Supply Current
ICC
VCC = 12V
--
0.3
0.8
mA
Driver Source Current
VCC = 12V, VDRI = 6V
5
--
--
mA
Driver Sink Current
VCC = 12V, VDRI = 6V
5
--
--
mA
ISET Reference Voltage
VREF
VCC = 12V, VDRI = 5V
0.784
0.8
0.816
V
ISET Line Regulation
VCC = 4.5V to 13.5V
--
3
6
mV
Amplifier Voltage Gain
VCC = 12V, No Load
--
70
--
dB
FAULT Rising Threshold
VCC = 12V
85
90
95
%VREF
FAULT Hysteresis
VCC = 12V
--
15
--
%VREF
Sink Capability
VCC = 12V @ 1mA
--
0.2
0.4
V
Delay Time
tDELAY
VCC = 12V
1
3
10
ms
Falling Delay
VCC = 12V
--
15
20
μs
DIM
DIM Rising Threshold
DIMth
VCC = 12V
--
0.7
1
V
DIM Hysteresis
VCC = 12V
--
30
--
mV
Standby Current
ISTANDBY
VCC = 12V, VDIM = 0V
--
--
5
μA



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