2-Channel H-Bridge Motor Driver IC

The BD6735FV is a 2-channel H-bridge motor driver IC for DSC or DVS lens drivers in digital cameras. The BD6735FV utilizes a Bi-CDMOS process which reduces circuit current/standby current by a significant margin (up to 33% according to ROHM studies). The unit also allows free switch-over between the DC motor and the stepping motor for use in various applications such as in AV devices, PC accessories and amusement equipment.

· Applications

DC/stepping motors, digital cameras, printers

· Features

1. Switch-over between DC motor/stepping motor (each motor can operate in forward, reverse, brake, idle or PWM stepping operation mode)
2. Two circuit built-in low ON resistance DMOS drive H-bridge driver
3. Circuit current of 0.5mA to 4mA and a standby current of 1µA (Max), achieving low power consumption
4. Wide operating voltage range (2V to 8V)
5. Power-save, thermal shutdown and undervoltage protection

· Series Specifications

Parameter	Symbol	Min.	Typ.	Max.	Unit.
Supply Voltage VCC	VCC	2.0	5.0	8.0	V
Supply Voltage VM	VM	2.0	5.0	8.0	V

*Recommended operating conditions (Ta=25ºC)

· Electrical Characteristics (Ta=25ºC, V_CC=5V, V_M = 5V unless otherwise specified)

Parameter	Symbol	Min.	Typ.	Max.	Unit.	Conditions
Circuit current at Standby	ICCST	-	0	1.0	µA	PS=0V
Circuit current in operation	ICC	0.5	2.0	4.0	mA	PS=Hi, Control Input=100kHz
Output ON Resistance	RON	-	1.0	1.35	Ω	Io=±700mA, Sum of Min. and Max.
PS Terminal H Level Input Voltage	VPSH	2.0	-	VCC	V
PS Terminal L Level Input Voltage	VPSL	-0.3	-	0.5	V
Control Input Terminal H Level Input Voltage	VINH	2.0	-	VCC	V
Control Input Terminal L Level Input Voltage	VINL	-0.3	-	0.7	V
Control Input Terminal Hysteresis Width	VINHYS	50	100	200	mV