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TPS2390DGKR

Texas Instruments · Monitors & Reset Circuits · VSSOP-8-0.65mm

TPS2390DGKR from Texas Instruments, in a VSSOP-8-0.65mm. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 FAULT output Open-drain, active-low fault output that is high impedance when EN is deasserted or the load current is below the programmed limit, and is pulled low to −VIN when a latched fault occurs.
2 EN input Enable input referenced to −VIN that turns power to the load on or off; pulling it above the nominal 1.4-V threshold enables GATE and starts the load current ramp, and a low level disables the LCA and applies a large pull-down to the FET gate.
3 FLTTIME bidirectional Fault-timeout programming pin; an external capacitor from FLTTIME to −VIN sets the fault timeout period, which is charged to the 4-V fault threshold.
4 IRAMP bidirectional Inrush slew-rate programming pin; an external capacitor from IRAMP to −VIN sets the load current slew rate on turn-on, and is discharged and held low when the output is disabled.
5 −VIN power_in Negative supply input and reference pin connected to the input supply negative rail, essentially the GND/VSS of the device to which all input, output and internal circuitry is referenced; the nominal input supply is −36 V to −80 V.
6 ISENS input Current sense input fed through an external low-value resistor to −VIN; the HSPM limits this voltage to 40 mV during ramp-up, and a fast overload above 100 mV pulls GATE low rapidly.
7 GATE output Gate drive for the external N-channel pass FET, driven by the linear current amplifier to about 14 V (VOH 11 V to 17 V) to fully enhance the FET once the load has ramped up.
8 RTN power_in Positive supply input connected directly to the return node of the input power bus, from which internal regulators derive the device's internal supply levels; the absolute maximum input voltage range is −0.3 V to 100 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VSSOP-8-0.65mm
Category Power Supply Chip
Pins 8

CAD (KiCad official)

  • Symbol: TPS2390DGKR
  • Footprint: Package_SO:VSSOP-8_2.3x2mm_P0.5mm
  • 3D model: VSSOP-8-0.65mm (KiCad packages3D, STEP)
  • 3D model files: tps2390dgkr-etched.step / tps2390dgkr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps2390dgkr.step / tps2390dgkr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (24 pp, sha256 b85e5611df7ad276, retrieved 2026-10-08, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF