参数资料
型号: BD6212FP-EVAL-N
厂商: Rohm Semiconductor
文件页数: 11/21页
文件大小: 0K
描述: BOARD EVAL FOR BD6212FP
特色产品: H-Bridge Driver IC
标准包装: 1
主要目的: 电源管理,电机控制
嵌入式:
已用 IC / 零件: BD6212
主要属性: 1 个半桥驱动器
已供物品:
相关产品: BD6212HFPDKR-ND - IC H-BRIDGE DVR 7V 1CH 2A HRP7
BD6212HFPCT-ND - IC H-BRIDGE DVR 7V 1CH 2A HRP7
BD6212HFPTR-ND - IC H-BRIDGE DVR 7V 1CH 2A HRP7
BD6212FP-E2DKR-ND - IC H-BRIDGE DRIVER 1CH 2A HSOP25
BD6212FP-E2CT-ND - IC H-BRIDGE DRIVER 1CH 2A HSOP25
BD6212FP-E2TR-ND - IC H-BRIDGE DRIVER 1CH 2A HSOP25
其它名称: EVAL-N.BD6212FP
EVAL-N.BD6212FP-ND
BD621xxx Series
Datasheet
e) f) PWM control mode A
The rotational speed of the motor can be controlled by the duty cycle of the PWM signal fed to the FIN pin or the
RIN pin. In this mode, the high side output is fixed and the low side output is switching, corresponding to the input
signal. The state of the output toggles between "L" and "Hi-Z".
The frequency of the input PWM signal can be between 20kHz and 100kHz. The circuit may not operate properly for
PWM frequencies below 20kHz and above 100kHz. Note that control may not be attained by switching on duty at
frequencies lower than 20kHz, since the operation functions via the stand-by mode. To operate in this mode,
connect the VREF pin to the VCC pin. In addition, establish a current path for the recovery current from the motor,
by connecting a bypass capacitor (10μF or higher is recommended) between VCC and ground.
ON
OFF
M
Control input : H
OFF
ON
ON
OFF
M
Control input : L
OFF
OFF
Fig.31 PWM control mode A operation (output stage)
FIN
RIN
OUT1
OUT2
Fig.32 PWM control mode A operation (timing chart)
g) h) PWM control mode B
The rotational speed of the motor can be controlled by the duty cycle of the PWM signal fed to the FIN pin or the
RIN pin. In this mode, the low side output is fixed and the high side output is switching, corresponding to the input
signal. The state of the output toggles between "L" and "H".
The frequency of the input PWM signal can be between 20kHz and 100kHz. The circuit may not operate properly for
PWM frequencies below 20kHz and above 100kHz. To operate in this mode, connect the VREF pin to the VCC pin.
In addition, establish a current path for the recovery current from the motor, by connecting a bypass capacitor (10μF
or higher is recommended) between VCC and ground.
ON
OFF
M
Control input : H
OFF
ON
ON
OFF
M
Control input : L
OFF
OFF
Fig.33 PWM control mode B operation (output stage)
FIN
RIN
OUT1
OUT2
Fig.34 PWM control mode B operation (timing chart)
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
11/18
TSZ02201-0P2P0B300070-1-2
25.Dec.2012 Rev.002
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