| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Frequency | 800 kHz |
| Number of Pins | 16 Pin |
| Case/Package | TQFN-16 |
| Halogen Free Status | Halogen Free |
| Number of Outputs | 2 Output |
| Output Voltage | 5.5 V |
| Output Current | 4 A |
| Number of Positions | 16 Position |
| Switching Frequency | 800 kHz |
| Topology | Charge Pump |
| Input Voltage (Max) | 5.5 V |
| Input Voltage (Min) | 2 V |
| Output Voltage (Max) | 5.5 V |
| Output Current (Max) | 4 A |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage | 2V ~ 5.5V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Cut Tape (CT) |
| Size-Length | 3.1 mm |
| Size-Width | 3.1 mm |
| Size-Height | 0.75 mm |
| Operating Temperature | -40℃ ~ 85℃ (TA) |
The CAT3224 is a very high current integrated flash LED driver which also supports the charging function for a dual-cell supercapacitor applications. Ideal for Li-ion battery-powered systems, it delivers up to 4.0 A LED flash pulses, far beyond the peak current capability of the battery.Dual-mode 1x/2x charge pump charges the stacked supercapacitor to a nominal voltage of 5.4 V, while an active balance control circuit ensures that both capacitor cell voltages remain matched. The nominal charging current to be drawn from the battery is set by an external resistor tied to the RC pin.The driver also features two matched current sources. External resistors provide the adjustment for the maximum flash mode current (up to 4.0 A) and the torch mode current (up to 400 mA). A built-in safety timer automatically terminates the flash pulse beyond a maximum duration of 300 ms. In addition to thermal shutdown and overvoltage protection, the device is fully protected against external resistor programming faults and fully supports reverse output voltage for all conditions.The device is packaged in the tiny 16-pad TQFN 3 mm x 3 mm package with a max height of 0.8 mm.
●Features
●---
● |
● 2 channels at 2.0 A each in Flash mode
● 2 channels at 200 mA each in Torch mode
● Adjustable charge current limit, up to 1000 mA
● Dual-mode 1x/2x charge pump
● Dual-cell supercapacitor balancing
● Zero current shutdown mode
ON Semiconductor
13 Pages / 0.2 MByte
ON Semiconductor
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ON Semiconductor
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ON Semiconductor
13 Pages / 0.18 MByte
ON Semiconductor
ON SEMICONDUCTOR CAT3224HV3-GT2 LED Driver, Charge Pump, 2V to 5.5V in, 2Outputs, 800kHz Switch. Frequency, 5.5V/4A out, TQFN-16
Catalyst
IC LED DRIVER PHOTO FLASH 16TQFN
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