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參數(shù)資料
| 型號： | BD6231HFP |
| 元件分類： | 運動控制電子 |
| 英文描述： | BRUSH DC MOTOR CONTROLLER, 1 A, PSSO8 |
| 封裝： | HRP-7 |
| 文件頁數(shù)： | 3/17頁 |
| 文件大?。?/td> | 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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BD6231HFP-TR | 功能描述:馬達/運動/點火控制器和驅(qū)動器 H-BRIDGE 36V max 1 Chan 1.0A 1.5ohm RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| BD6232 | 制造商:ROHM 制造商全稱:Rohm 功能描述:H-bridge drivers (36V max.) |
| BD62321HFP | 制造商:ROHM 制造商全稱:Rohm 功能描述:H-bridge driver |
| BD62321HFP-TR | 功能描述:IC H-BRIDGE DVR 36V 1CH 3A HRP7 RoHS:是 類別:集成電路 (IC) >> PMIC - 電機和風(fēng)扇控制器，驅(qū)動器 系列:- 標準包裝:1 系列:- 應(yīng)用:直流電機驅(qū)動器，步進電機驅(qū)動器 評估套件:- 輸出數(shù):1 或 2 電流 - 輸出:750mA 電壓 - 負載:10 V ~ 40 V 電源電壓:4.5 V ~ 5.5 V 工作溫度:-20°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-BFSOP（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOP 包裝:Digi-Reel® 其它名稱:MTS62C19A-HS105DKR |
| BD6232FP | 制造商:ROHM 制造商全稱:Rohm 功能描述:H-Bridge Motor Drivers For DC Brush Motors |
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