TPS386000 Datasheet | Texas Instruments

ures - 1 Four Independent Voltage Supervisors - Channel 1: - Adjustable Threshold Down to 0.4 V - Manual Reset (MR) Input - Channels 2, 3: - Adjustable Threshold Down to 0.4 V - Channel 4: - Adjustable Threshold at Any Positive or Negative Voltage - Window parator - Adjustable Delay Time: 1.4 ms to 10 s - Threshold Accuracy: 0.25% Typical - Very Low Quiescent Current: 11 μA Typical - Watchdog Timer With Dedicated Output - Well-Controlled Output During Power Up - TPS386000: Open-Drain RESETn and WDO - TPS386040: Push-Pull RESETn and WDO - Package: 4-mm × 4-mm, 20-Pin VQFN 2 Applications - All DSP and Microcontroller Applications - All FPGA and ASIC Applications - Tele and Wireless Infrastructure - Industrial Equipment - Analog Sequencing 3 Description The TPS3860x0 family of supply voltage supervisors (SVSs) can monitor four power rails that are greater than 0.4 V and one power rail less than 0.4 V (including negative voltage) with a 0.25% (typical) threshold accuracy. Each of the four supervisory circuits (SVS-n) assert a RESETn or RESETn output signal when the SENSEm input voltage drops below the programmed threshold. With external resistors, the threshold of each SVS-n can be programmed (where n = 1, 2, 3, 4 and m = 1, 2, 3, 4L, 4H). Each SVS-n has a programmable delay before releasing RESETn or RESETn. The delay time can be set independently for each SVS from 1.4 ms to 10 s through the CTn pin connection. Only SVS-1 has an active-low manual reset (MR) input; a logic-low input to MR asserts RESET1 or RESET1. SVS-4 monitors the threshold window using two parators. The extra parator can be configured as a fifth SVS to monitor negative voltage with voltage reference output VREF. The TPS3860x0 has a very low quiescent current of 11 μA (typical) and is available in a small, 4-mm x 4mm, VQFN-20...