Controlling the shutdown pin of an IR Transceiver

[newbe_always]

I am using an IR transceiver in my design.This IC is working at 3.3V supply.This IC need not be on always so I decided to give a control to it's shut down pin (Pin no 5,Shutdown Input. Active low).A transistor switch is used for this purpose.When the switch is ON the transceiver will be active and when it is off the transceiver shutdown pin will be connected to 3.3V. My circuit is given below.The value of R1 is 10K.
The control signal is coming from a microcontroller.

May I know this circuit is fine or not.

 

[rjenkinsgb]

If the MCU is also running on 3.3V, you could connect an output directly to the shutdown pin, preferably via a series resistor?

Or if they are powered separately, you must use a series resistor (eg. 100k) to limit the current if the device is accidentally enabled while not powered.

The maximum load current is only 1uA, so such a resistor has near enough no effect on the voltage in switching applications such as this, but can prevent accidental damage to an input.

If the MCU is working on 5V, you could use a resistive divider at the output, such as 1k8 and 3k3 (or some other combination giving a similar ratio), then the series limiting resistor from the divider output to the shutdown pin.

 

[newbe_always]

The MCU is also working at 3.3V