Automotive nanopower supervisor with programmable sense and reset delay
The separate VDD and SENSE pins allow for the redundancy sought by high-reliability systems. SENSE is decoupled from VDD and can monitor rail voltages other than VDD. Optional use of external resistors are supported by the high impedance input of the SENSE pin. Both CTS and CTR provide delay adjustability on the rising and falling edges of the RESET signals. CTS also functions as a debouncer by ignoring voltage glitches on the monitored voltage rails and operates as a “manual reset” that can be used to force a system reset.
The precision performance, best in-class features in a compact form factor, makes the TPS3899-Q1 an ideal solution for wide ranging automotive and battery-powered / low-power applications. The device is fully specified over a temperature range of –40°C to +125°C (TA).
Qualified for automotive applications:
AEC-Q100 qualified with the following results:
Device temperature grade 1: –40°C to +125°C ambient operating temperature
Device HBM ESD classification level 2
Device CDM ESD classification level C7B
Designed for high performance:
Nano quiescent current: 125 nA (Typical)
High threshold accuracy: ±0.5% (Typical)
Built-in precision hysteresis (VHYS): 5% (Typical)
Designed for a wide range of applications:
Operating voltage range:
0.85 V to 6 V (DL and PL outputs)
1 V to 6 V (PH output)
Adjustable threshold voltage: 0.505 V (Typical)
Precision voltage and push-button monitor
Programmable sense and reset delay
Fixed (VIT-) voltage: 0.8 V to 5.4 V in 0.1 V steps
Multiple output topologies / Package type:
TPS3899DL-Q1: open-drain, active-low (RESET)
Type : 16-bit
Applications : general purpose, for automotive applications
Other characteristics : analog
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