I see that you are trying to use the VIN_OK pin as a digital indicator. Instead of using it in that manner, why not use it as an analog input via a voltage divider? That way you can monitor the LIR2450's voltage directly? Using resistors in the MegOHM…
Part Number: TPS62737 We use the TPS62737 in a Remote Control providing. With 3x AA cells it works in range of Ubat=4.6V to 3.0V. Output voltage is 1.8V. Vin_ok is programmed to 2.9V.
R1=5M6, R2=3M3, R3=4M7 as calculated with the provided excel sheet…
Other Parts Discussed in Thread: TPS62737 During sleep time of the product, there are continuous peak currents (ripple currents) observed at input of TPS62737- Vin pin. During wake-up period ripple in the current are reduced to 1mA. Why there are high peaks…
Other Parts Discussed in Thread: TPS62737 Hi,
The final product is for battery operated device where in the part TPS62737 is used for converting 3V to 2.1V. During current measurements we found that there are peaks of 10mA duration 100us for every 1ms…
Other Parts Discussed in Thread: TPS62736 Hi, I need a little help understanding the current limiting behavior of the TPS62736. The maximum output current for the 50mA version of the part is depicted in Figs. 16-18 of the data sheet. The captions say something…
Other Parts Discussed in Thread: TPS62737 i use a coin cell lithuim battery LIR2450 to supply my board. this battery is a rechargeable one.
I'm using a switch to select between charging the battery and letting the battery supply the circuit board. …
Part Number: TPS62737EVM-560 Hi
TPS62737 is used in our design for 3.3V output from the 3.6V input voltage. DC power supply (RS-3005D) was used for the 3.6V input.
To get 3.3V output we changed the following resistances :
R1 = 4,7M Ω
R2 = 150K Ω
R3 …
Part Number: BQ25570 Other Parts Discussed in Thread: TPS62737 Hello my question is
I set the voltage output is set to 3.3V.My system is a BQ25570 powering a system(MCU) at 3.3V. The system is on the regulated VOUT net of the BQ25570 (on the buck step…
Part Number: BQ25570 Other Parts Discussed in Thread: TPS62737 Hello my question is
I set the voltage output is set to 3.3V.My system is a BQ25570 powering a system(MCU) at 3.3V. The system is on the regulated VOUT net of the BQ25570 (on the buck step…
Thanks Jeff.
Yes I am aware I could use a FET inverter and invert the drive from the micro but this would consume current when in the EN (off) mode. A push pull voltage translator would be preferred but this is a highly compact design and any extra…