Specifications
| Attribute | Value |
| Package / Case | Cut Tape (CT) |
| Part Status | Not For New Designs |
| Type | DC DC Controller |
| Internal Switch(s) | No |
| Number of Outputs | 1 |
| Voltage - Supply (Min) | 9V |
| Voltage - Supply (Max) | 18V |
| Current - Output / Channel | 2.3mA |
| Frequency | 30kHz ~ 200kHz |
| Dimming | Analog, PWM |
| Applications | Backlight |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
Overview
Description
BD94121F-GE2 is Rohm’s BD-series motor-driver IC. It combines two high‑current MOSFETs with an on‑chip gate driver and current sensing to drive small BLDC or stepper motors directly from a microcontroller, reducing external components.
Key points:
- Two‑channel integrated driver for brushless/stepper motors; simple logic control with PWM/step-like inputs.
- Built‑in protections: overcurrent, over/undervoltage, overtemperature, and fault/diagnostic output.
- Adjustable peak current/current regulation with dead‑time to prevent shoot‑through.
- RoHS-compliant GE2 package variant; check exact pinout and package options in the datasheet.
Common applications:
- Printers, cooling fans, robotics, office automation, automotive subsystems.
Note:
For exact electrical specs, pinout, timing, and application guidelines, refer to the BD94121F-GE2 datasheet.
Key points:
- Two‑channel integrated driver for brushless/stepper motors; simple logic control with PWM/step-like inputs.
- Built‑in protections: overcurrent, over/undervoltage, overtemperature, and fault/diagnostic output.
- Adjustable peak current/current regulation with dead‑time to prevent shoot‑through.
- RoHS-compliant GE2 package variant; check exact pinout and package options in the datasheet.
Common applications:
- Printers, cooling fans, robotics, office automation, automotive subsystems.
Note:
For exact electrical specs, pinout, timing, and application guidelines, refer to the BD94121F-GE2 datasheet.
Features
BD94121F-GE2 is a ROHM dual-channel motor driver (H-bridge) with integrated MOSFETs designed for DC motors and small steppers. Key features:
- Two full-bridge channels for direct motor drive with built-in power MOSFETs.
- PWM input control with current regulation mode for smooth speed control.
- Adjustable current limit per channel.
- Protective functions: undervoltage lockout (UVLO), overcurrent protection (OCP), over-temperature protection (OTP), and overvoltage protection (OVP).
- Fault/diagnostic outputs or status pins for microcontroller feedback.
- Standby/ Sleep control and low quiescent current in sleep mode.
- Short-circuit protection and cross-conduction prevention.
- Compact package suitable for compact boards; RoHS-compliant.
Note: Exact voltage/current ratings and pinout are in the datasheet—refer to it for precise specifications and application guidelines.
- Two full-bridge channels for direct motor drive with built-in power MOSFETs.
- PWM input control with current regulation mode for smooth speed control.
- Adjustable current limit per channel.
- Protective functions: undervoltage lockout (UVLO), overcurrent protection (OCP), over-temperature protection (OTP), and overvoltage protection (OVP).
- Fault/diagnostic outputs or status pins for microcontroller feedback.
- Standby/ Sleep control and low quiescent current in sleep mode.
- Short-circuit protection and cross-conduction prevention.
- Compact package suitable for compact boards; RoHS-compliant.
Note: Exact voltage/current ratings and pinout are in the datasheet—refer to it for precise specifications and application guidelines.
Manufacturer
- Manufacturer: ROHM Semiconductor (ROHM Co., Ltd.)
- What kind of company: A Japanese multinational electronics and semiconductor company that designs and manufactures semiconductors, integrated circuits, power devices, LEDs, and related components for automotive, industrial, and consumer markets.
- What kind of company: A Japanese multinational electronics and semiconductor company that designs and manufactures semiconductors, integrated circuits, power devices, LEDs, and related components for automotive, industrial, and consumer markets.
Application
Possible application areas for BD94121F-GE2:
- Power management in consumer electronics (DC-DC conversion, LDOs)
- Automotive electronics (power rails, load switching, battery management)
- LED lighting driver applications
- Battery charging and protection circuits
- Motor drive/controls (BLDC or stepper) in small systems
- Industrial control and IoT devices requiring efficient power regulation
For exact capabilities and suitable use cases, please consult the official datasheet.
- Power management in consumer electronics (DC-DC conversion, LDOs)
- Automotive electronics (power rails, load switching, battery management)
- LED lighting driver applications
- Battery charging and protection circuits
- Motor drive/controls (BLDC or stepper) in small systems
- Industrial control and IoT devices requiring efficient power regulation
For exact capabilities and suitable use cases, please consult the official datasheet.
Package
QFN-28 (4×4 mm) package.
