参数资料
型号: L5986ATR
厂商: STMICROELECTRONICS
元件分类: 稳压器
英文描述: 3.9 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8
封装: ROHS COMPLIANT, HSOP-8
文件页数: 5/38页
文件大小: 1067K
代理商: L5986ATR
L5986
Functional description
Doc ID 14971 Rev 3
13/38
Figure 8.
Over-current protection strategy
5.5
Inhibit function
The inhibit feature allows to put in stand-by mode the device.With INH pin higher than 1.9 V
the device is disabled and the power consumption is reduced to less than 30
μA. With INH
pin lower than 0.6 V, the device is enabled. If the INH pin is left floating, an internal pull up
ensures that the voltage at the pin reaches the inhibit threshold and the device is disabled.
The pin is also VCC compatible.
5.6
Hysteretic thermal shutdown
The thermal shutdown block generates a signal that turns off the power stage if the junction
temperature goes above 150 °C. Once the junction temperature goes back to about 130 °C,
the device restarts in normal operation. The sensing element is very close to the PDMOS
area, so ensuring an accurate and fast temperature detection.
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