BD9207FPS is a ROHM LED driver with a built-in Pch switching MOSFET and a maximum switching current of 1.5A
The BD9207FPS is a step‑down LED driver with a built‑in switching MOSFET, low feedback voltage (0.2 V) and high‑frequency PWM operation at 900 kHz. It offers a compact TO‑252‑5 surface‑mount package, built‑in soft‑start, over‑current protection (OCP) and thermal shutdown (TSD).
The note provides detailed electrical characteristics, recommended component selections (coil, diode, capacitors, sense resistor) and layout advice for optimal efficiency and stability. Application examples include printer backlights, LCD panels and other lighting modules.
| Supply voltage (VCC‑GND) range | 8.0 V – 35.0 V |
|---|---|
| Maximum switching output current | 1.54 A |
| Oscillating frequency | 900 kHz |
| Over‑current detection current (OCP) | 1.6 A |
| Operating temperature range | -20 °C ~ +85 °C |
The device can handle a maximum switching current of 1.54 A.
The output is controlled by the STBY terminal; a high level turns the output on.
The PWM comparator operates at a fixed frequency of 900 kHz.
The absolute maximum supply voltage (VCC‑GND) is 36 V.