Post History
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)....
#3: Post edited
by
newbie
·
2024-11-21T16:27:00Z (about 14 hours ago)
- I am using an IR [transceiver](https://www.analog.com/media/en/technical-documentation/data-sheets/MAX3120.pdf) 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 base control signal is coming from a Microcontroller.- May I know this circuit is fine or not.
- 
- I am using an IR [transceiver](https://www.analog.com/media/en/technical-documentation/data-sheets/MAX3120.pdf) 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 base control signal is coming from a Microcontroller.The uC is also working at 3.3V
- May I know this circuit is fine or not.
- 
#2: Post edited
by
newbie
·
2024-11-21T16:02:50Z (about 14 hours ago)
- I am using an IR [transceiver](https://www.analog.com/media/en/technical-documentation/data-sheets/MAX3120.pdf) 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.
- May I know this circuit is fine or not.
- 
- I am using an IR [transceiver](https://www.analog.com/media/en/technical-documentation/data-sheets/MAX3120.pdf) 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 base control signal is coming from a Microcontroller.
- May I know this circuit is fine or not.
- 
#1: Initial revision
by
newbie
·
2024-11-21T15:55:46Z (about 14 hours ago)
Controlling the shutdown pin of an IR Transceiver
I am using an IR [transceiver](https://www.analog.com/media/en/technical-documentation/data-sheets/MAX3120.pdf) 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. May I know this circuit is fine or not. 