BD94121F-GE2

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BD94121F-GE2

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規格

Package Cut Tape (CT)
ProductStatus Not For New Designs
Type DC DC Controller
InternalSwitch(s) No
NumberofOutputs 1
Voltage-Supply(Min) 9V
Voltage-Supply(Max) 18V
Current-Output/Channel 2.3mA
Frequency 30kHz ~ 200kHz
Dimming Analog, PWM
Applications Backlight
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 18-SOIC (0.213, 5.40mm Width)

概述

Description

BD94121F-GE2 is a ROHM semiconductor motor-drive controller in the BD94x family. It acts as a two–channel gate-driver/controller for brushless DC motors or stepper motors, generating drive signals for external MOSFETs and handling protection and current regulation. It’s intended for compact power-electronics in consumer and automotive applications.
Key points:
- Two-channel motor-drive control with PWM/speed inputs
- Protection features (e.g., undervoltage, overcurrent/short-circuit, overtemperature)
- Current regulation for precise motor control
- Suitable for driving BLDC/stepper motors with external MOSFETs
Packaging and exact specs (voltage range, current rating, pinout) vary by revision; consult the BD94121F-GE2 datasheet for precise data and recommendations. If you want, I can summarize the specific datasheet once you share the exact variant or your application notes.

Features

I don’t have the exact BD94121F-GE2 datasheet memorized. Here are the typical features you’d expect from a Rohm BD9412x family device (verify exact numbers in the datasheet):
- Wide input range (roughly 4.5–60 V)
- Constant-current output with adjustable setting (for LED or other loads)
- Dimming options: PWM and analog dimming
- Soft-start and current limiting
- Protection: UVLO, overvoltage, overcurrent/short-circuit, thermal shutdown
- Enable/shutdown control
- Low quiescent current for high efficiency
- Small packaging (8-pin SIP/SOP/SON variants), with automotive-grade options often available
For precise, exact specifications and pinout, please consult the official BD94121F-GE2 datasheet.

Package

QFN (leadless) package.

Pinout

Pin count: 16 pins (SOP-16/SSOP-16 style).
Function: ROHM BD94121F-GE2 is a DC-DC converter/LED driver IC with integrated switching transistor and current regulation. It provides voltage/current regulation for LED strings or regulated rails, with VIN, GND, EN, FB/SENSE, SW, and related control pins.

Manufacturer

ROHM Semiconductor (ROHM Co., Ltd.). It is a Japanese multinational semiconductor company that designs and manufactures integrated circuits, power management ICs, discrete semiconductors, sensors, LEDs, and other electronic components.

Application

BD94121F-GE2 is a dual-channel motor driver IC for 2-phase stepper and small brushless DC motors. It’s used in compact devices needing precise motor control, such as printers, scanners, copiers, office automation gear, robotics kits, and other consumer appliances.

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