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Contents

README

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TPS259824ONRGER

Texas Instruments · Surge Protection Devices (SPDs) · QFN-24(4x4)

TPS259824ONRGER from Texas Instruments, in a QFN-24(4x4). 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 IN power_in Power supply input within recommended range 2.7V to 24V (absolute maximum 30V); exposed pad must be soldered evenly to input power plane to provide proper thermal dissipation and maintain ideal current distribution.
2 IN power_in Power supply input within recommended range 2.7V to 24V; exposed pad must be soldered evenly to input power plane for proper thermal dissipation and current distribution.
3 IN power_in Power supply input within recommended range 2.7V to 24V; exposed pad must be soldered to input power plane for current distribution and thermal management.
4 GND power_in Ground connection to system ground plane; provides DC return path and signal reference for all internal circuits.
5 GND power_in Ground connection to system ground plane; provides return path for internal circuits and external connections.
6 EN/UVLO input Device enable pin (high-level active) with maximum input voltage of 7V; external resistive voltage divider from IN to GND can set under-voltage lockout threshold above factory default VUVLO(R) of 1.2V; do not leave floating.
7 ITIMER output Overcurrent blanking timer output; capacitor connected to GND sets blanking interval during which output current can temporarily exceed programmed current limit up to 2.1×ILIM before circuit breaker responds; leave open for fastest response.
8 ILIM output Current limit and fast-trip threshold setting; external resistor to GND in range 82Ω to 1650Ω sets output current limit threshold from 2A to 15A with ±8% typical accuracy; fast-trip threshold set at 2.1×ILIM; do not leave floating.
9 IMON output Analog load current monitor output providing current proportional to output current flowing through FET with gain of 246µA/A and ±1.5% typical accuracy for IOUT > 3A; connect series resistor to GND to convert current signal to voltage.
10 RETRY_DLY output Automatic retry delay timer output; capacitor to GND sets time interval from fault shutdown until device attempts automatic restart; connect to GND for latch-off operation (no automatic retry).
11 NRETRY output Automatic retry counter output; capacitor to GND sets number of automatic restart attempts after fault (quantized to discrete values: 4, 16, 64, 256, or 1024 attempts); connect to GND for unlimited automatic retries.
12 LDSTRT input Load detect handshake signal input with voltage threshold at 1.1V to 1.3V; capacitor to GND sets time window following PG assertion during which load circuit must pull this pin low to maintain device conduction; connect to GND if load detection not used; do not leave floating.
13 PG output Power-good indicator output (active high open-drain with 4.2mΩ typical ON-resistance); asserted when FET is fully enhanced with gate drive at VIN + 3.6V and output reaches maximum voltage; remains at logic low when VIN < VUVP.
14 GND power_in Ground connection to system ground plane; ensures low-impedance return path for all internal and external circuits.
15 dVdt output Output voltage slew rate control output; capacitor to GND sets output voltage rise time during turn-on to limit inrush current (calculate capacitor as 4600pF ÷ SR in V/ms); leave floating for fastest slew rate (7.4V/ms typical at 24V VIN).
16 IN power_in Power supply input connection (2.7V to 24V) providing secondary input current path; exposed pad must be soldered to input power plane to distribute current and dissipate heat.
17 OUT power_out Power supply output providing switched power to load with maximum output voltage of VIN + 0.3V; supports continuous current up to 15A with integrated over-current and short-circuit protection.
18 OUT power_out Power supply output providing switched power to load; supports continuous output current up to 15A with integrated protection.
19 OUT power_out Power supply output providing switched power to load; supports continuous output current up to 15A.
20 OUT power_out Power supply output providing switched power to load; supports continuous output current up to 15A.
21 OUT power_out Power supply output providing switched power to load; supports continuous output current up to 15A.
22 OUT power_out Power supply output providing switched power to load; supports continuous output current up to 15A.
23 OUT power_out Power supply output providing switched power to load; supports continuous output current up to 15A.
24 OUT power_out Power supply output providing switched power to load; supports continuous output current up to 15A.
25 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package QFN-24(4x4)
Category Circuit Protection
Pins 25

CAD (KiCad official)

  • Symbol: TPS259824ONRGER
  • Footprint: Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm
  • 3D model: QFN-24(4x4) (KiCad packages3D, STEP)
  • 3D model files: tps259824onrger-etched.step / tps259824onrger-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps259824onrger.step / tps259824onrger.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (55 pp, sha256 f4a0f06cfbd81f26, retrieved 2026-10-01, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (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