LED Driver. RP2401 Datasheet

RP2401 Driver. Datasheet pdf. Equivalent

RP2401 Datasheet
Recommendation RP2401 Datasheet
Part RP2401
Description Adjustable Constant Current LED Driver
Feature RP2401; Preliminary RP2401 Adjustable Constant Current LED Driver General Description Features The RP24.
Manufacture RICHPOWER
Datasheet
Download RP2401 Datasheet




RICHPOWER RP2401
Preliminary
RP2401
Adjustable Constant Current LED Driver
General Description
Features
The RP2401 is a constant current regulator for driving LEDs
with low quiescent current and low dropout voltage. The
current is adjustable from 100mA to 400mA with an
external resistor. Soft start, thermal protection and under
voltage protection are also provided.
2%
Sink Current: 100mA to 400mA adjustable
An external resistor to set current level
Power Supply Voltage: 2.7V to 6V
Low Dropout Voltage: 150mV@350mA (VLED to GND)
Low Quiescent Current: 250µA
Thermal Protection
Soft Start
Low Voltage Protection (UVLO): 2.5V
SOT-89-5 Package
Ordering Information
RP2401
Package Type
X5: SOT-89-5
Operating Temperature Range
G: Green ( Halogen Free with Commer-
cial Standard
Applications
Power LED Driver
Sink Current Regulator
Note :
Richpower Green products are :
RoHS compliant and compatible with the current
requirements of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
Pin Configurations
(TOP VIEW)
LED NC
Marking Information
For marking information, contact our sales representative
directly or through a Richpower distributor located in your
area.
54
23
ISET GND VDD
SOT-89-5
RP2401-01P Jan 2010
1



RICHPOWER RP2401
RP2401
Functional Pin Description
Preliminary
Pin Number
1
2
3
4
5
Pin Name
ISET
GND
VDD
NC
LED
Pin Function
Set current level.
Ground.
Power.
No connection.
Connect to LED.
Typical Application Circuit
+
2.7V to 6V
VDD
RP2401
ISET
LED
RSET
GND
Function Block Diagram
VDD
ISET
POR &
Thermal
Shutdown
Soft Start
+
-
Error Amplifier
LED
2 RP2401-01P Jan 2010



RICHPOWER RP2401
Preliminary
RP2401
Absolute Maximum Ratings (Note 1)
Supply Voltage (VIN) ---------------------------------------------------------------------------------------------------- 6V
Control Voltage ----------------------------------------------------------------------------------------------------------- 6V
Output Voltage ----------------------------------------------------------------------------------------------------------- 6V
Power Dissipation, PD @ TA = 25°C
SOT-89-5 ------------------------------------------------------------------------------------------------------------------- 0.833W
Package Thermal Resistance (Note 4)
SOT-89-5, θJA ------------------------------------------------------------------------------------------------------------- 120°C/W
Junction Temperature --------------------------------------------------------------------------------------------------- 150°C
Lead Temperature (Soldering, 10 sec.) ----------------------------------------------------------------------------- 260°C
Storage Temperature Range ------------------------------------------------------------------------------------------- 65°C to 150°C
ESD Susceptibility (Note 2)
HBM (Human Body Mode) -------------------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ---------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 3)
Ambient Temperature Range ------------------------------------------------------------------------------------------ 40°C to 85°C
Supply Voltage, VDD --------------------------------------------------------------------------------------------------- 2.7V to 5.5V
Electrical Characteristics
Parameter
Test Conditions
Min Typ Max Units
Sink Current Range
Sink Current Accuracy
VDD= 3.6V
100 -- 400 mA
-5 -- +5 %
VDD under Voltage Lockout
Load Regulation
Line Regulation
ILED= 100mA
VLED= 0.4V to 2V, VDD= 3.6V
VDD= 3V to 5.5V
-- 2.5 2.7 V
-- --
2%
-- --
2%
Resistance of Current Sink
VLED= 0.1V, VDD= 3.6V, RSET= 100kΩ
--
-- 0.5 ohm
Supply Current
Over Temperature Protection
VDD= 3.6V, RSET= 100kΩ
-- 250 -- µA
-- 150 -- °C
Over Temperature Hysteresis
-- 30 -- °C
Soft-start Time
ILED= 400mA
-- 50 -- µs
Note 1. Stresses listed as the above "Absolute Maximum Ratings" may cause permanent damage to the device. These are
for stress ratings. 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 for extended
periods may remain possibility to affect device reliability.
Note 2. Devices are ESD sensitive. Handling precaution recommended.
Note 3. The device is not guaranteed to function outside its operating conditions.
Note 4. θJA is measured in the natural convection at TA = 25°C on a high effective thermal conductivity test board (Four Layers,
2S2P) of JEDEC 51-7 thermal measurement standard.
RP2401-01P Jan 2010
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