1 Features
• AEC-Q100 qualified with the following results:
– Device temperature grade 1: –40°C to 125°C
ambient operating temperature range
• Factory programmed or user-programmable
watchdog timeout
– ±10% Accurate timer (maximum)
– Factory programmed close window: 1msec to
100 sec
• Factory programmed or user-programmable reset
delay
– ±10% Accurate timer (maximum)
– Factory programmed option: 2 msec to 10 sec
• Input voltage range: VDD = 1.04 V to 6.0 V
• Fixed threshold voltage (VIT-): 1.05 V to 5.4 V
– Threshold voltage available in 50 mV steps
– 1.2% Voltage threshold accuracy (maximum)
– Built-in hysteresis (VHYS): 5% (typical)
• Ultra low supply current: IDD = 250 nA (typical)
• Open-drain, push-pull; active-low outputs
• Various programmability options:
– Watchdog enable-disable
– Watchdog startup delay: no delay to 10 sec
– Open window to close window ratio option: 1X
to 511X
– Latched output option
• MR functionality support

2 Applications
• On-board (OBC) and wireless charger
• Driver monitoring
• Battery Management System (BMS)
• Front camera
• Surround view system ECU

3 Description
The TPS36-Q1 is an ultra-low power consumption
(250 nA typical) device offering a precision voltage
supervisor with a programmable window watchdog
timer. The TPS36-Q1 supports wide threshold levels
for undervoltage supervision with 1.2% accuracy
across the specified temperature range.
The TPS36-Q1 offers a high accuracy window
watchdog timer with host of features for a wide variety
of applications. The close window timer can be factory
programmed or user programmed using an external
capacitor. The open window to close window ratio can
be changed on-the-fly using a combination of logic
pins. The watchdog also offers unique features such
as enable-disable, start-up delay, independent WDO
pin option.
The RESET or WDO delay can be set by factoryprogrammed
default delay settings or programmed by
an external capacitor. The device also offers a latched
output operation where the output is latched until the
supervisor or watchdog fault is cleared.
The TPS36-Q1 provides a performance upgrade
alternative to TPS3852-Q1 device family. The TPS36-
Q1 is available in a small 8-pin SOT-23 package.