ROHM Semiconductor BD612xx Full-Wave Fan Motor Drivers

ROHM Semiconductor BD612xx Full-Wave Fan Motor Drivers are multi-function and single-phase motor drivers. These motor drivers can control speed by PWM input and feature PWM soft switching, lock protection, and automatic restart. The BD612xx motor drivers are available in different variants that are either composed of H-bridge power DMOS FETs or pre-drivers for external power MOSFETs. These motor drivers provide a rotation speed pulse signal (FG) output. Typical applications include fan motors for general consumer equipment of desktop PCs, projectors, servers, and refrigerators.

Features

PWM soft switching
Can control speed by PWM
Lock protection and automatic restart
Rotation speed pulse signal (FG) output
BD61241FV, BD61243FV, BD61245EFV, and BD61247NUX drivers:
- Single-chip driver composed of H-bridge power DMOS FET
- Quick start
- Start duty assist

BD61250MUV and BD61251FV drivers:
- Pre-driver IC that drives single-phase H-bridge output composed of external MOSFET
- Lead angle function
- Current limit
- Standby mode
- Input/output duty slope adjustment

Specifications

-40°C to 105°C operating temperature range
BD61241FV and BD61243FV drivers:
- 5.5V to 16V operating voltage range
- 0.2V typical output voltage at 0.2A current
- SSOP small package with 5mm x 6.4mm x 1.35mm dimensions
BD61245EFV driver:
- 4V to 16V operating voltage range
- 0.2V typical output voltage at 0.4A current
- HTSSOP-B16 package with 5mm x 6.4mm x 1mm dimensions
BD61247NUX drivers:
- 4.5V to 16V operating voltage range
- 0.2V typical output voltage at ±0.2A current
- VSON010X3030 package 3mm x 3mm x 0.6mm

BD61250MUV driver:
- 40V supply voltage (V_CC)
- VQFN024V4040 package with 4mm x 4mm x 1mm dimensions
BD61251FV driver:
- 4.5V to 16V operating voltage range
- SSOP-B16 package with 5mm x 6.4mm x 1.35mm dimensions

ROHM Semiconductor BD612xx Full-Wave Fan Motor Drivers

Features

Specifications

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