Хочу использовать микросхему LTC4054-4.2 для зарядки, и наткнулся в даташите на такую функцию:
Цитата
The PROG pin can also be used to shut down the charger.
Disconnecting the program resistor from ground allows
a 3mA current to pull the PROG pin high. When it reaches
the 1.21V shutdown threshold voltage, the charger enters
shutdown mode, charging stops and the input supply
current drops to 25mA. This pin is also clamped to
approximately 2.4V. Driving this pin to voltages beyond
the clamp voltage will draw currents as high as 1.5mA.
Reconnecting RPROG to ground will return the charger to
normal operation.
Disconnecting the program resistor from ground allows
a 3mA current to pull the PROG pin high. When it reaches
the 1.21V shutdown threshold voltage, the charger enters
shutdown mode, charging stops and the input supply
current drops to 25mA. This pin is also clamped to
approximately 2.4V. Driving this pin to voltages beyond
the clamp voltage will draw currents as high as 1.5mA.
Reconnecting RPROG to ground will return the charger to
normal operation.
Но не совсем понятно, как именно можно это сделать. В начале думал поставить полевик между Rprog и землей, но симуляции показывают что так просто всё работать не будет.
Как же правильно этим всем управлять?