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参数资料
| 型号： | LV8761V |
| 厂商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSH DC MOTOR CONTROLLER, 4 A, PDSO36 |
| 封装： | 0.275 INCH, SSOP-36 |
| 文件页数： | 13/13页 |
| 文件大小： | 285K |
| 代理商： | LV8761V |
LV8761V
Output short-circuit protection function
The LV8761V incorporates an output short-circuit protection circuit that turns off the output to prevent the IC from
fatal damage when the output is short-circuited due to short-to-power or short-to-ground fault. Either the “latch-type,”
in which the output off state is latched when the short-circuit protection circuit is activated, or “auto reset-type,” in
which the output on/off states are repeated when the short-circuit protection circuit is activated, can be selected.
EMM Pin
Short-circuit Protection Mode
L
Latch type
H
Auto reset type
1.Protection function operation (Latch method)
The short-circuit protection circuit is activated when it detects the output short-circuit state. If the short-circuit state
continues for the internally preset period (
≈ 4μs), the protection circuit turns off the output from which the short-circuit
state has been detected. Then it turns the output on again after a lapse of the timer latch time described later. If the
short-circuit state is still detected, it changes all the outputs to the standby mode and retains the state. The latched state
is released by setting the PS to L.
4
μs
Short-circuit
Short-
circuit
Short-circuit
detection state
SCP voltage
H-bridge
output state
Internal counter
1st counter
start
1st counter
stop
1st counter
start
1st counter
end
2nd counter
start
2nd counter
end
Release
Threshold voltage
Output OFF
Output ON
Standby state
2.How to set the SCP pin constant (timer latch-up setting)
The user can set the time at which the outputs are turned off when a short-circuit occurs by connecting a capacitor
across the SCP and GND pins. The value of the capacitor can be determined by the following formula :
Timer latch-up : Tocp
Tocp
≈ C × V/I [s]
V : Comparator threshold voltage (1V typical)
I : SCP charge current (5
μA typical)
When a capacitor with a capacitance of 50pF is connected across the SCP and GND pins, for example, Tscp is
calculated as follows :
Tscp = 50pF
× 1V/5μA = 10μs
No.A1172-9/13
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LV8761V_10 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Forward/Reverse H-bridge Driver |
| LV8761VGEVB | 功能描述:电源管理IC开发工具 EVM FOR LV8761V 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 |
| LV8761V-MPB-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 |
| LV8761V-TLM-E | 功能描述:马达/运动/点火控制器和驱动器 BRUSH MOTOR IC 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 |
| LV8762T | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Forward/Reverse H-bridge Driver |
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