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Technical Specifications
Parameters and characteristics for this part
| Specification | CAT3614HV2-T2 |
|---|---|
| Applications | Backlight |
| Current - Output / Channel | 31 mA |
| Frequency [Max] | 1.3 MHz |
| Frequency [Min] | 800 kHz |
| Mounting Type | Surface Mount |
| Number of Outputs | 4 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 12-WFDFN Exposed Pad |
| Supplier Device Package | 12-TDFN (3x3) |
| Topology | Switched Capacitor (Charge Pump) |
| Voltage - Supply (Max) | 5.5 V |
| Voltage - Supply (Min) [Min] | 3 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Bulk | 275 | $ 1.09 | |
Description
General part information
CAT3614 Series
The CAT3614 is a high efficiency 1x/1.5x fractional charge pump with programmable dimming current in four LED channels. To ensure uniform brightness in LCD backlight applications, each LED channel delivers an accurate regulated current.Low noise and input ripple is achieved by operating at a constant switching frequency of 1MHz which allows the use of small external ceramic capacitors. The 1x/1.5x fractional charge pump supports a wide range of input voltages from 3 V to 5.5 V with efficiency up to 91%, and is ideal for Li-Ion battery powered devices.The EN/DIM logic input provides a 1-wire EZDim™ interface for dimming control of the LEDs. When enabled, a series of clock pulses reduces the LED brightness in 1mA steps on each negative going edge. Currents from 0 mA to 31 mA are supported.
Documents
Technical documentation and resources