Catalyst Semiconductor CAT4004
The CAT4004 provides four matched low dropout current sources to drive LEDs. 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 current setting of all LEDs.| Part No. | CAT4004 |
|---|---|
| Datasheet | CAT4004 Download |
| Manufacturer |  Catalyst Semiconductor |
| Description | 4-Channel Constant Current LED Driver |
| Buy | Stock & Price |
FEATURES
Four LED current sinks with tight matching Low Dropout Driver 130mV at 30mA No switching noise Shutdown current < 1μA LED current set by external resistor Dimming via 1-wire EZDimTM interface Thermal shutdown protection RoHS Compliant 8-lead 2mm x 3mm TDFN packageDESCRIPTION
An external resistor on RSET sets the current in the LED channels. Six different current dimming ratios are available. The device is aimed at “direct drive” battery applications. It is required that the battery or voltage source have enough headroom to drive the LED forward voltage and current sink (>150mV). The device is available in a tiny 8-lead TDFN 2mm x 3mm package with a max height of 0.8mm.APPLICATIONS
LCD Display Backlight Cellular Phones Digital Still Cameras Handheld Devices ORDERING INFORMATION Part Number CAT4004VP2-T3 Notes: (1) Lead finish Matte-Tin (2) Quantity per reel is 3000 Package TDFN-8 2x3mm (1) Package Marking FT For Ordering Information details, see page 10.
