BD8112EFV-M is a white LED driver with the capability of withstanding high input voltage (36V MAX). This driver has 2ch constant-current drivers integrated in 1-chip, which each channel can draw up to 150mA max, so that high brightness LED driving can be realized. Furthermore, a current-mode buck-boost DC/DC controller is also integrated to achieve stable operation against voltage input and also to remove the constraint of the number of LEDs in series connection. The brightness can be controlled by either PWM or VDAC techniques.
This technical note describes the BD8112EFV-M white LED driver, a dual‑channel constant‑current driver with an integrated buck‑boost DC/DC controller. It outlines the device’s features, operating conditions, absolute maximum ratings, and electrical characteristics.
The document also includes a block diagram, pin layout, pin function table, and details on voltage reference, PWM control, and buck‑boost operation, as well as ordering information and packaging specifications.
| Input voltage range | 5.0 – 30 V |
|---|---|
| Maximum LED current per channel | 150 mA |
| Oscillating frequency range | 250 – 600 kHz |
| Operating temperature range | -40 °C to +105 °C |
| Power consumption (typical) | 140 mW |
| Package type | HTSSOP‑B24 |
The device can handle up to 36 V maximum input voltage.
Brightness can be adjusted using PWM modulation or a VDAC voltage.
It is supplied in an HTSSOP‑B24 surface‑mount package.
Typical oscillation frequency is about 285 kHz to 315 kHz.