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参数资料
| 型号： | BD6231HFP |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSH DC MOTOR CONTROLLER, 1 A, PSSO8 |
| 封装： | HRP-7 |
| 文件页数： | 3/17页 |
| 文件大小： | 713K |
| 代理商： | BD6231HFP |
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2) Cross-conduction protection circuit
In the full bridge output stage, when the upper and lower transistors are turned on at the same time, and this condition
exists during the period of transition from high to low, or low to high, a rush current flows from the power supply to
ground, resulting in a loss. This circuit protects against the rush current by providing a dead time (about 400ns,
nominal) at the transition.
3) Output protection circuits
a) Under voltage lock out (UVLO) circuit
To secure the lowest power supply voltage necessary to operate the controller, and to prevent under voltage
malfunctions, a UVLO circuit has been built into this driver. When the power supply voltage falls to 5.0V (nominal)
or below, the controller forces all driver outputs to high impedance. When the voltage rises to 5.5V (nominal) or
above, the UVLO circuit ends the lockout operation and returns the chip to normal operation.
b) Over voltage protection (OVP) circuit
When the power supply voltage exceeds 47V (nominal), the controller forces all driver outputs to high impedance.
The OVP circuit is released and its operation ends when the voltage drops back to 43V (nominal) or below. This
protection circuit does not work in the stand-by mode. Also, note that this circuit is supplementary, and thus if it is
asserted, the absolute maximum rating will have been exceeded. Therefore, do not continue to use the IC after this
circuit is activated, and do not operate the IC in an environment where activation of the circuit is assumed.
c) Thermal shutdown (TSD) circuit
The TSD circuit operates when the junction temperature of the driver exceeds the preset temperature (175°C
nominal). At this time, the controller forces all driver outputs to high impedance. Since thermal hysteresis is
provided in the TSD circuit, the chip returns to normal operation when the junction temperature falls below the
preset temperature (150°C nominal). Thus, it is a self-returning type circuit.
The TSD circuit is designed only to shut the IC off to prevent thermal runaway. It is not designed to protect the IC or
guarantee its operation in the presence of extreme heat. Do not continue to use the IC after the TSD circuit is
activated, and do not operate the IC in an environment where activation of the circuit is assumed.
d) Over current protection (OCP) circuit
To protect this driver IC from ground faults, power supply line faults and load short circuits, the OCP circuit
monitors the output current for the circuit’s monitoring time (10μs, nominal). When the protection circuit detects an
over current, the controller forces all driver outputs to high impedance during the off time (290μs, nominal). The IC
returns to normal operation after the off time period has elapsed (self-returning type). At the two channels type, this
circuit works independently for each channel.
Fig.42 Over current protection (timing chart)
Threshold
Iout
CTRL Input
Internal status
Monitor / Timer
0
OFF
ON
mon.
off timer
ON
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BD6231HFP-TR | 功能描述:马达/运动/点火控制器和驱动器 H-BRIDGE 36V max 1 Chan 1.0A 1.5ohm RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| BD6232 | 制造商:ROHM 制造商全称:Rohm 功能描述:H-bridge drivers (36V max.) |
| BD62321HFP | 制造商:ROHM 制造商全称:Rohm 功能描述:H-bridge driver |
| BD62321HFP-TR | 功能描述:IC H-BRIDGE DVR 36V 1CH 3A HRP7 RoHS:是 类别:集成电路 (IC) >> PMIC - 电机和风扇控制器，驱动器 系列:- 标准包装:1 系列:- 应用:直流电机驱动器，步进电机驱动器 评估套件:- 输出数:1 或 2 电流 - 输出:750mA 电压 - 负载:10 V ~ 40 V 电源电压:4.5 V ~ 5.5 V 工作温度:-20°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-BFSOP（0.295"，7.50mm 宽） 供应商设备封装:24-SOP 包装:Digi-Reel® 其它名称:MTS62C19A-HS105DKR |
| BD6232FP | 制造商:ROHM 制造商全称:Rohm 功能描述:H-Bridge Motor Drivers For DC Brush Motors |
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