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Texas Instruments TPS3620-50DGKR — Power Management (PMIC / Gate Driver)

TPS3620-50DGKR Battery Backup Circuit, Active Low Reset

MPNTPS3620-50DGKR
Active

Texas Instruments TPS3620-50DGKR Battery Backup Circuit, Reset Active Low, Push-Pull Output, 4.55V Threshold, 60ms Reset Timeout, -40°C~85°C, 8-VSSOP Surface Mount.

$1.5690Ref. price · indicative, final on quote
Texas Instruments TPS3620-50DGKR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS3620-50DGKR specifications
ParameterValue
TypeBattery Backup Circuit
MountingSurface Mount
Voltage - threshold4.55V
Number of voltages monitored1
Operating temperature-40°C~85°C(TA)
ResetActive Low
OutputPush-Pull, Totem Pole
PackageTape & Reel (TR); Cut Tape (CT)
Reset timeout60ms Minimum
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width)

Product details

4.55V threshold supervisor for battery-backed rails

It is used in systems where a backup battery or supercapacitor must take over seamlessly during a main-supply brownout — think RAID controllers, industrial PLCs, and medical monitors that need to preserve volatile memory or state through a power glitch.

60 ms reset timeout — hold-up margin for the downstream load

The reset output stays asserted for a minimum of 60 ms after the monitored voltage returns above the threshold. That window gives the downstream microcontroller or FPGA time to complete a clean shutdown or to stabilise its own power-on sequence before the reset de-asserts. In a battery-backup context, the timeout also masks the switch-over transient when the backup source engages.

No AEC-Q automotive qualification is listed, so it is not specified for under-hood or chassis-domain applications.

Frequently asked questions

Does TPS3620-50DGKR have an active low reset?

Yes. The reset output is active low and uses a push-pull (totem pole) topology, so it does not require an external pull-up resistor. It drives the reset pin of the downstream device directly.

What is the reset timeout for TPS3620-50DGKR?

The reset timeout is a minimum of 60 ms. The output stays low for at least that duration after the monitored voltage recovers above the 4.55V threshold.