PTC PT16753
The PT16753 is buck topology switching regulator with constant current output for high-power LEDs driving purpose. It integrates a 50V high side Nchannel MOSFET switch for step down conversion. The output current control loop operating in average current mode and the switch current is controlled cycle-by-cycle with an adaptive on-time structure.| Part No. | PT16753 |
|---|---|
| Datasheet | PT16753 Download |
| Manufacturer |  PTC |
| Description | Constant Current Buck LED Driver |
| Buy | Stock & Price |
DESCRIPTION
Output current is user-defined by an external current sense resistor and output voltage depends on numbers of total series LEDs in a single string. This ensures the optimal system efficiency. LED dimming is accomplished by a direct logic input pulse width modulation (PWM) signal at the EN pin. The device has thermal pad on the bottom side for enhanced thermal dissipation.APPLICATIONS
● Daytime running lights● Front and rear fog lights
● Turn signal lights
● Decoration spot light
● Dimmable interior lights
FEATURES
● AEC-Q100 Grade 1, operating temperature range TA = -40°C ~ 125°C● 6 to 48 V supply voltage
● Asynchronous rectifier buck regulator with average output current mode control
● 2.5 Amps continue output current on a 2- layer PC board
● 3 Amps maximum output current in TA=25°C on a 4-layer PC board with additional heatsink
● Cycle-by-cycle current limit
● Integrated high side MOSFET switch
● PWM dimming controlled by logic level signal
● Internal loop compensation...
