BD9703FP-E2

BD9703FP-E2 is a ROHM semiconductor LED-driver IC designed for constant-current LED lighting. It combines switch‑mode regulation and current control to drive LED strings from a varying input voltage, making it suitable for automotive, display backlights, indicators, and general LED applications. Key features typically include adjustable LED current, dimming via PWM or analog control, and protection functions such as overcurrent, overvoltage, overtemperature, plus open/short LED detection and soft-start to reduce inrush. The E2 suffix denotes its specific ROHM packaging. To design with it, set the desired LED current with a sense resistor and control input, and follow the datasheet for exact electrical specs, pinout, and layout recommendations. For precise capabilities and limitations, consult the official BD9703FP-E2 datasheet.

I don’t have live cross‑reference data for BD9703FP-E2. Please confirm its function and key specs (e.g., what it does, voltage/current, package). With that, I can propose 2–4 direct equivalents from major vendors (TI, Onsemi, ST, etc.) or guide you to distributor cross-reference tools (DigiKey/Mouser) to find replacements.

BD9703FP-E2 is a ROHM LED driver IC. Its typical features include:
- Single-channel constant-current LED driver with adjustable current
- Backlight driver with boost/buck-boost regulation to drive LED string from a low input voltage
- Dimming: PWM and/or analog dimming options
- Control interface (often I2C/SPI) for setting current and dimming (confirm)
- Protections: overcurrent/short-circuit, overvoltage, undervoltage lockout, thermal shutdown
- Soft-start to suppress inrush
- High efficiency operation over a wide input range
- Compact package (QFN/SON), suitable for portable/backlight apps
For exact, device-specific specs (input range, LED current range, dimming range, package details), please share the datasheet or a link and I can pull precise numbers.

- Pin count: 8 pins (SOP8 package)
- Function: Constant‑current LED driver IC (DC‑DC regulator) with LED current regulation via sense resistor, suitable for driving LED strings.

Manufacturer: ROHM Semiconductor (ROHM Co., Ltd.).
What kind of company: A Japanese multinational company that designs and manufactures semiconductors and electronic components (ICs, power devices, diodes, sensors, etc.) for automotive, industrial, and consumer electronics.

BD9703FP-E2 is a Li‑ion battery protection IC. Typical application areas:
- 1S Li‑ion/Li‑poly battery packs in portable electronics (phones, tablets, wearables, Bluetooth devices)
- Cordless tools and other consumer/industrial battery packs
- Medical devices and portable equipment needing overcharge/overdischarge/overcurrent protection
- Automotive and short‑range battery modules with integrated protection and status monitoring

BD9703FP-E2 uses an 8-pin SOP (SOP-8) surface-mount package.