ADP8140 is a 4-channel high current LED driver with adjustable power control. It provides a highly integrated solution for driving high brightness LEDs with minimal external components. The driver features four current sink channels with adjustable currents ranging from 0 to 500 mA. It supports DC LED dimming for noiseless operation. The matching between LED channels is 2% (max), and the LED current accuracy is 5% (max). The driver operates from a supply voltage (Vin) of 7.5 V to 30 V, and higher voltages can be achieved with a small external circuit. It can handle LED anode supply voltages up to 100 Vdc. The feedback output controls an external power source for optimal efficiency and safety. Multiple ADP8140 ICs can be operated in parallel to control a single power supply. It enables secondary side control of isolated power supplies without the need for a TL431. The driver also includes a dedicated DIM pin for reducing the output current.
The ADP8140 is a highly integrated 4-channel high current LED driver designed for high brightness LED lighting and large format LED backlighting applications. It features four current sink channels with adjustable currents from 0 to 500 mA, controlled by a single external resistor. The device operates from an input voltage range of 7.5 V to 30 V and supports LED anode supply voltages up to 100 Vdc.
| Number of Channels | 4 |
|---|---|
| Max Sink Current per Channel | 500 mA |
| Input Voltage Range | 7.5 V to 30 V |
| Max LED Anode Voltage | 100 Vdc |
| Package Type | LFCSP |
| Thermal Resistance (JA) | 33.2 °C/W |
| Operating Ambient Temperature | -40°C to +105°C |
Each driver can sink up to 500 mA.
Yes, multiple ADP8140 ICs can be operated in parallel and control one power supply.
Yes, it provides secondary side control of isolated power supplies without the need for a TL431.