Analog Devices / Maxim Integrated MAX20056BEVKIT Driver Evaluation Kit
Analog Devices Inc. MAX20056BEVKIT Driver Evaluation Kit demonstrates the MAX20056B, an integrated, 6-channel high-brightness LED driver with a wide PWM dimming ratio and phase-shifting for automotive displays. The evaluation kit operates from a DC supply voltage of 4.5V to 36V, and the switching frequency is set at 400kHz. Spread-spectrum mode (SSM) is enabled for EMI improvement. The evaluation kit demonstrates direct dim and phase-shifted pulse-width modulation (PWM) dimming. The evaluation kit also demonstrates short-LED, open-LED, and over-temperature fault protection.
Features
- 4.5V to 36V (up to 50V load dump) input voltage
- Drives six strings of HB LEDs
- 20mA to 120mA LED current
- Demonstrates both phase-shifted and direct PWM dimming
- Demonstrates undervoltage lockout and output short protection
- Demonstrates cycle-by-cycle current limit and thermal-shutdown feature
- Demonstrates 5V, 30mA LDO output capability
- Proven PCB and thermal design
- Fully assembled and tested
Required Equipment
- MAX20056BEV evaluation kit
- 5V to 36V, 4A DC power supply
- Two digital voltmeters (DVMs)
- Six series-connected HB LED strings rated to no less than 120mA
- Current probe to measure the HB LED current
Associated Product
Analog Devices / Maxim Integrated MAX20056B 6-Channel High-Brightness LED Driver
Integrates a DC-DC switching boost/SEPIC controller and six 120mA current sinks.
Paskelbta: 2019-10-11
| Atnaujinta: 2023-04-25