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CAT4004A

ON Semiconductor
Part Number CAT4004A
Manufacturer ON Semiconductor
Description Constant Current LED Driver
Published Oct 20, 2016
Detailed Description Constant Current LED Driver with 32 Dimming Levels and Rset CAT4002A, CAT4004A Description The CAT4002A and CAT4004A pr...
Datasheet PDF File CAT4004A PDF File

CAT4004A
CAT4004A

Overview
Constant Current LED Driver with 32 Dimming Levels and Rset CAT4002A, CAT4004A Description The CAT4002A and CAT4004A provide respectively two and four matched low dropout current sources to drive LEDs.
The CAT400XA uses an external resistor RSET to set the current in the LED channels.
Each LED channel includes an individual control loop allowing the device to handle a wide range of LED forward voltages while still maintaining tight current matching.
The EN/DIM logic inputs supports device enable and a digital dimming interface for setting the LED channel current with 32 linear dimming levels.
LEDs can be powered directly from a Lithium−ion battery due to the low dropout (50 mV at 20 mA) current sinks.
The device is available in the tiny 8−pad UDFN 2 mm x 2 mm package with a max height of 0.
55 mm, as well as the 6−lead SC−70.
Features • 2 and 4 LED Current Sinks with Tight Matching • 32 Dimming Levels • Low Dropout Driver 50 mV at 20 mA • No Switching Noise • Shutdown Current less than 1 mA • LED Current set by External Resistor • Dimming via 1−wire EZDim Interface • Thermal Shutdown Protection • 6−lead SC−70, and 8−pad UDFN 2 mm x 2 mm Packages • These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant Applications • LCD Display Backlight • Cellular Phones • Digital Still Cameras • Handheld Devices VIN 2.
4 V to 5.
5 V CIN 1 mF 20 mA LED1 LED2 LED3 LED4 One wire programming RSET 3.
74 kW VIN EN/DIM RSET CAT4004A GND Figure 1.
Typical Application Circuit © Semiconductor Components Industries, LLC, 2011 1 October, 2021 − Rev.
3 DATA SHEET www.
onsemi.
com UDFN−8 HU2G SUFFIX CASE 517AW SC70−6 SD SUFFIX CASE 419AD PIN CONNECTIONS 1 EN/DIM GND LED1 LED2 CAT4004A UDFN−8 VIN RSET LED4 LED3 1 EN/DIM RSET VIN CAT4002A SC70−6 (Top Views) LED1 GND LED2 ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 8 of this data sheet.
Publication Order Number: CAT4002A/D CAT4002A, CAT4004A MARKI...


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