| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 28 Pin |
| Case/Package | HTSSOP-28 |
| Number of Outputs | 4 Output |
| Input Voltage (DC) | 12.0V ~ 80.0V |
| Output Voltage | 80 V |
| Output Current | 1 mA |
| Number of Positions | 28 Position |
| Quiescent Current | 2.30 mA |
| Number of Regulated Outputs | 4 Output |
| Thermal Shutdown | Yes |
| Input Voltage (Max) | 80 V |
| Input Voltage (Min) | 12 V |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage | 12V ~ 80V |
| Supply Voltage (Max) | 80 V |
| Supply Voltage (Min) | 12 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Each |
| Size-Length | 9.7 mm |
| Size-Width | 4.4 mm |
| Size-Height | 1 mm |
| Operating Temperature | -40℃ ~ 125℃ (TJ) |
The LM3464/64A is a 4-channel high voltage current regulator that provides a simple solution for LED lighting applications. The LM3464/64A provides four individual current regulator channels and works in conjunction with external N-channel MOSFETs and sense resistors to give accurate driving current for every LED string. Additionally, the Dynamic Headroom Control (DHC) output can be interfaced to the external power supply to adjust the LED supply voltage to the lowest level that is adequate to maintain all the string currents in regulation, yielding the optimal overall efficiency.
●Digital PWM or analog voltage signals can be used to control the duty cycle of the all the channels. When analog control is used, the dimming frequency can be programmed via an external capacitor. A minimum duty cycle control is provided in the conditions that the analog dimming is configured as thermal feedback.
●Protection features include VIN under-voltage lock-out, LED open/short circuit and over-temperature fault signaling to the system controller.
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