Texas Instruments' integrated multichannel voltage sequencer provides I²C support for up to 12 channels

The Texas Instruments TPS38700 is an integrated multi-channel voltage sequencer with window watchdog and programmable I2C in a 24-pin 4 mm x 4 mm VQFN package. The sequencer is ideal for systems that require precise power-on and/or power-off sequencing, and can be interfaced with multichannel voltage monitors.

The TPS38700 defaults to the pre-programmed OTP option, but the I2C can be programmed for power-on/power-off sequencing, watchdog Settings, and sequence timing options if needed. Flexible and programmable voltage rail sequencing, low static current and small size enable the voltage sequencer to meet most application requirements.

Features

● Input voltage range: 2.2V to 5.5V
● Undervoltage lock (UVLO) : 2.0V
● Low static current: 30 µA (typical value)
● Window guard dog
● Independent RESET
● Independent NIRQ
● NVM error checking: 1 - and 2-bit error checking
● CRC error checking for register maps
● Spare battery
● Crystal oscillator option
● I2C programmable sequence
● RTC Clock The alarm clock function

Applications

● Medical robot
● Industrial robot