参数资料
| 型号： | LV8773-E |
| 厂商： | ON Semiconductor |
| 文件页数： | 10/14页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR DVR PWM CC 2CH 28-DIP |
| 标准包装： | 20 |
| 系列： | * |
LV8773
(7) Output short-circuit protection function
This IC incorporates an output short-circuit protection circuit that, when the output has been shorted by an event such
as shorting to power or shorting to ground, sets the output to the standby mode and turns on the warning output in
order to prevent the IC from being damaged. In the channels 1 and 2 operate independently. (Even if the output of
channel 1 has been short-circuited, channel 2 will operate normally.)
(7-1) Output short-circuit protection operation changeover function
Changeover to the output short-circuit protection of IC is made by the setting of EMM pin.
EMM
Low or Open
High
State
Latch method
Auto reset method
(7-2) Latch type
In the latch mode, when the output current exceeds the detection current level, the output is turned OFF, and this state
is held.
The detection of the output short-circuited state by the IC causes the output short-circuit protection circuit to be
activated.
When the short-circuited state continues for the period of time set using the internal timer (approximately 2 μ s), the
output in which the short-circuiting has been detected is first set to OFF. After this, the output is set to ON again as
soon as the timer latch time (Tcem) described later has been exceeded, and if the short-circuited state is still detected,
all the outputs of the channel concerned are switched to the standby mode, and this state is held.
This state is released by setting ST to low.
Output ON
H-bridge
Output ON
Output OFF
Standby state
output state
Threshold voltage
CEM voltage
Short-circuit
detection state
Internal counter
Short- Release
circuit
Short-circuit
1st counter
1st counter 1st counter
1st counter
2nd counter
2nd counter
start
stop
start
end
start
end
No.A1961-10/14
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LV8773-E | 制造商:ON Semiconductor 功能描述:OPTOCOUPLERS; Leaded Process Compatible:No; Peak Reflow Compatible (260 C):No ;RoHS Compliant: No |
| LV8773GEVB | 功能描述:电源管理IC开发工具 EVM FOR LV8773 RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| LV8773Z-E | 功能描述:马达/运动/点火控制器和驱动器 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 |
| LV8800C | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Optoelectronic |
| LV8800V | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Bi-CMOS IC For Notebook PC Fan Motor Driver |
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