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参数资料
| 型号： | BD6211F-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 10/21页 |
| 文件大小： | 0K |
| 描述： | IC H-BRIDGE DRIVER 1CH 1A SOP8 |
| 产品培训模块： | H-Bridge Drivers for DC Brush Motors |
| 特色产品： | H-Bridge Driver IC |
| 标准包装： | 1 |
| 应用： | 直流电机驱动器 |
| 输出数： | 1 |
| 电流 - 输出： | 1A |
| 电源电压： | 3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.173"，4.40mm 宽） |
| 供应商设备封装： | 8-SOP |
| 包装： | 标准包装 |
| 产品目录页面： | 1371 (CN2011-ZH PDF) |
| 其它名称： | BD6211F-E2DKR |
BD621xxx Series
● Functional Descriptions
1) Operation modes
Table 4 Logic table
Datasheet
FIN
RIN
VREF
OUT1
OUT2
Operation
a
b
c
d
e
f
g
h
i
j
L
H
L
H
PWM
L
H
PWM
H
L
L
L
H
H
L
PWM
PWM
H
L
H
X
VCC
VCC
X
VCC
VCC
VCC
VCC
Option
Option
Hi-Z*
H
L
L
H
__________
PWM
__________
PWM
L
H
__________
PWM
Hi-Z*
L
H
L
__________
PWM
H
L
__________
PWM
__________
PWM
H
Stand-by (idling)
Forward (OUT1 > OUT2)
Reverse (OUT1 < OUT2)
Brake (stop)
Forward (PWM control mode A)
Reverse (PWM control mode A)
Forward (PWM control mode B)
Reverse (PWM control mode B)
Forward (VREF control)
Reverse (VREF control)
* Hi-Z i: all output transistors are off. Please note that this is the state of the connected diodes, which differs from that of the mechanical relay.
X : Don’t care
a) Stand-by mode
Stand-by operates independently with the VREF pin voltage. In stand-by mode, all internal circuits are turned off,
including the output power transistors. Motor output goes to high impedance. When the system is switched to
stand-by mode while the motor is running, the system enters an idling state because of the body diodes. However,
when the system switches to stand-by from any other mode (except the brake mode), the control logic remains in
the high state for at least 50μs before shutting down all circuits.
b) Forward mode
This operating mode is defined as the forward rotation of the motor when the OUT1 pin is high and OUT2 pin is low.
When the motor is connected between the OUT1 and OUT2 pins, the current flows from OUT1 to OUT2. To operate
in this mode, connect the VREF pin to the VCC pin.
c) Reverse mode
This operating mode is defined as the reverse rotation of the motor when the OUT1 pin is low and OUT2 pin is high.
When the motor is connected between the OUT1 and OUT2 pins, the current flows from OUT2 to OUT1. To operate
in this mode, connect the VREF pin to the VCC pin.
d) Brake mode
This operating mode is used to quickly stop the motor (short circuit brake). It differs from the stand-by mode
because the internal control circuit is operating in the brake mode. Please switch to stand-by mode (rather than the
brake mode) to save power and reduce consumption.
OFF
OFF
ON
OFF OFF
ON
OFF
OFF
M
M
M
M
OFF
OFF OFF
ON
ON
OFF
ON
ON
a) Stand-by mode
b) Forward mode
c) Reverse mode
d) Brake mode
Fig.30 Four basic operations (output stage)
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
10/18
TSZ02201-0P2P0B300070-1-2
25.Dec.2012 Rev.002
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