Acpsemi ACP2728
The ACP2728 is a boost DC/DC converter that drives WLEDS with a 40V voltage rated switch MOSFET, thus it can drive single or parallel WLED strings for small to large size panel back-lighting. The default white LED current is set with the external sensor resistor, and the feedback voltage is regulated to 200mV, as shown in the typical application. For Maximum protection, the device features integrated open protection that disables the ACP2728 to prevent the output voltage from exceeding the absolute maximum voltage ratings during open LED Conditions.| Part No. | ACP2728 |
|---|---|
| Datasheet | ACP2728 Download |
| Manufacturer | Acpsemi |
| Description | 38V Boost DC/DC WLED Driver |
| Buy | Stock & Price |
GENERAL DESCRIPTION
During the operation, the WLED current can be controlled by a PWM signal applied to The EN pin, through which the duty cycle determines the feedback reference voltage. ACP2728 38V Boost DC/DC WLED Driver ◤FEATURES
● Input Voltage Range: 2.7V to 5.5V● 200mV Reference Voltage
● Integrated 2.7A Current Limit MOSFET
● Fixed 1.2MHz Switching Frequency
● PWM Brightness Control
● Under-Voltage Protection
● Low EMI and Improved PSRR
● Up to 93% Efficiency
● Built-In Soft-Start Function
● Thermal Shutdown
● TSOT-25 Tiny Package ◤APPLICATION
● TFT Panel Backlighting
● Portable LED Lamp ◤APPLICATION CIRCUIT Input 5V CIN 22μF Enable & PWM Dimming L 10μH VIN SW ACP2728 D1 COUT 10μF Up to 3S30P EN FB GND RSET 0.33Ω Typical ACP2728 Application Circuit Rev.1.1.3 1 Sep-12-2018 ACP2728 38V Boost DC/DC WLED Driver ◤PIN CONFIGURATION Pin Configuration TSOT25 (TOP VIEW) SW 1 5 VIN GND 2 FB 3 4 EN Pin# 1 2 3 4 5 Symbol SW GND FB EN VIN Pin
DESCRIPTION
Function Drain Connection of The Internal Power FET Ground Pin Feedback Input PWM Dimming Signal Input Input Supply Pin ◤ORERING INFORMATION Standard Part NO.
