STEVAL-ILL023V1 STMicroelectronics, STEVAL-ILL023V1 Datasheet - Page 4

• Manufacturer Part Number: STEVAL-ILL023V1
• Description: BOARD EVAL BASED ON L6726A
• Manufacturer: STMicroelectronics

Specifications of STEVAL-ILL023V1

• Current - Output / Channel: 2.8A
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 2.5 ~ 14 V
• Features: Dimmable
• Voltage - Input: 8 ~ 18 V
• Utilized Ic / Part: L6726A
• Description/function: LED Driver Demo Board
• Operating Current: 2.8 A
• Operating Voltage: 8 V to 18 V
• Product: Display Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: LEDs based on the L6726A
• Other names: 497-9046

List of figures
List of figures
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STEVAL-ILL023V1 - 2.8 A LED driver (LED is not included in the kit) . . . . . . . . . . . . . . . . . 1
2.8 A LED driver based on the L6726A + external MOSFET . . . . . . . . . . . . . . . . . . . . . . . . 6
Part of schematics with highlighted components for efficient current sensing . . . . . . . . . . . 7
PCB layout - top side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
PCB layout - bottom side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Reference design detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Thermal snapshot at full load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Output current with 1 LED (Seoul Semiconductor P7) . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Dimming control curve (12 V input, 1 LED output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Variation in output currents with load change (number of LEDs in a string) . . . . . . . . . . . . 12
Variation in output current vs. input voltage (1 LED load) . . . . . . . . . . . . . . . . . . . . . . . . . 12
Doc ID 15396 Rev 2
UM0677