ROHM BD64550EFV Data Sheet
Summary
Datasheet for the ROHM BD64550EFV system motor driver IC for inkjet printers, integrating 2-channel H-bridge driver, step-down switching regulator with built-in P-channel DMOS FET, series regulator, and reset output. Features low-on resistance outputs, constant-current chopping drive, soft start, 16-bit serial interface, overcurrent and thermal protection in HTSSOP-B40 package. Operates 7V to 36V with 8A peak motor current. Target users: printer hardware engineers and motor control designers developing inkjet printer mechanisms requiring integrated motor and power management.
Page 1 Text Content
Motor Drivers for Printers
System Driver for Ink Jet Printers
No.10016EAT03
BD64550EFV
●Description This is 1-chip system motor driver integrating 2-channel H-bridge driver, step-down switching regulator with built-in power DMOS, series regulator and reset output.
●Features 1) Low-on resistance output H-bridge driver (2-channel) 2) Constant-current chopping drive H-bridge driver 3) Switching regulator with built-in P-channel power DMOS FET 4) Soft start function: 23.6 ms (Typ.) 5) Reset release timer: 80 ms (Typ.) 6) 16 bit serial interface 7) Logic input interface (serial/parallel changeable) 8) Ultra thin type high heat dissipation HTSSOP-B40 package 9) Overcurrent protection in H-bridge driver block 10) Input voltage low voltage protection in H-bridge driver block 11) Overcurrent protection in switching regulator block 12) Output overvoltage protection in switching regulator block 13) Output low voltage protection in switching regulator block 14) Thermal shutdown
●Applications Inkjet printer, photo printer, etc.
●Absolute Maximum Ratings (Ta=25℃)
Parameter Symbol Ratings Unit
VM applied voltage VM 40 V Logic input voltage VL -0.4 ~ 5.5 V RIN applied voltage VRIN 5.5 V RNF voltage VRNF 0.5 V Power dissipation Pd 1600* m W Operating temperature range TOPR -25 ~ +85 ℃ Storage temperature range TSTG -55 ~ +150 ℃ Junction temperature Tjmax 150 ℃ Motor driver output current (peak 500 ns) Iomax (peak) 8.0 A Motor driver output current (DC) Iomax (DC) 2.5** A Switching regulator output current (DC) Iomax 0.5 A Series regulator output current (DC) Iomax 0.25 A * Reduced by 12.8 m W/℃ over 25 ℃, when mounted on a glass epoxy board (70 mm x 70 mm x 1.6 mm). ** Must not exceed Pd or ASO.
●Operating Conditions
Parameter Symbol Limit Unit
VM operating power supply voltage range VM 7 ~ 36 V SCLK max. operating frequency FSCLK 20 MHz Switching regulator output voltage range Vswreg 3 ~ 5 V
www.rohm.com 2010.06 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
Page Summary Contents For ROHM BD64550EFV Data Sheet
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 17 |
| File Size | 397.47 KB |
| Published | June 16, 2026 |
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Frequently Asked Questions
What is the maximum supply voltage for the BD64550EFV motor driver?
The maximum applied voltage (VM) is 40V.
How many H-bridge motor channels does this driver have?
It has two independent H-bridge driver channels.
What is the typical reset release timer delay?
The typical reset release timer delay is 80 ms.
What is the switching regulator's output voltage range?
The switching regulator output voltage range is 3V to 5V.