component
TEA1791T
Public Made by Adomby adom
NXP Semicon AC-DC Controllers And Regulators, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTEA1791T
NXP Semicon · AC-DC Controllers And Regulators · SOP-8
TEA1791T from NXP Semicon, in a SOP-8. 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 | SRSENSE | input | Synchronous timing input that senses the SR MOSFET voltage, with driver activation at −310 mV typical, regulation at −55 mV and zero-current switch-off detection at −12 mV, and a series resistor (typically 1 kΩ) recommended for protection. |
| 2 | GND | power_in | Ground reference; all voltages in the datasheet are measured with respect to pin 2. |
| 3 | n.c. | unconnected | Not connected. |
| 4 | DRIVER | output | Driver output for the SR MOSFET gate, with a typical source capability of 250 mA, a typical sink capability of 2.7 A and an output voltage limited to 10 V typical. |
| 5 | n.c. | unconnected | Not connected. |
| 6 | n.c. | unconnected | Not connected. |
| 7 | n.c. | unconnected | Not connected. |
| 8 | VCC | power_in | Supply voltage pin with an operating range of 8.5 V to 38 V; the IC leaves undervoltage lockout above 8.5 V typical and re-enters it below 8.0 V typical. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | NXP Semicon |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Start-up voltage | Vstartup | 8.2 | 8.5 | 8.8 | V | 6 | |
| Driver activation voltage | Vact(drv) | -340 | -310 | -280 | mV | 6 | |
| Driver regulation voltage | Vreg(drv) | -65 | -55 | -45 | mV | 6 | |
| Minimum synchronous rectification time, short time | tact(sr)(min) | 1.5 | 2 | 2.5 | μs | Short time | 6 |
| Minimum synchronous rectification time, long time | tact(sr)(min) | 1.7 | 2.2 | 2.7 | μs | Long time | 6 |
| Source current | Isource | -0.3 | -0.25 | -0.2 | A | VCC = 15 V; voltage on pin DRIVER = 2 V | 6 |
| Sink current | Isink | 1 | 1.4 | A | VCC = 15 V; voltage on pin DRIVER = 2 V | 6 | |
| Sink current | Isink | 2.2 | 2.7 | A | voltage on pin DRIVER = 9.5 V | 6 | |
| Maximum output voltage | Vo(max) | 10 | 12 | V | VCC = 15 V | 6 | |
| Supply voltage | VCC | -0.4 | 38 | V | continuous | 5 | |
| Voltage on pin SRSENSE | VSRSENSE | 120 | V | continuous | 5 | ||
| Current on pin DRIVER | IDRIVER | -0.8 | 3 | A | duty cycle < 10 % | 5 | |
| Current on pin SRSENSE | ISRSENSE | -3 | mA | 5 | |||
| Total power dissipation | Ptot | 0.45 | W | Tamb < 80 °C | 5 | ||
| Storage temperature | Tstg | -55 | 150 | °C | 5 | ||
| Junction temperature | Tj | -40 | 150 | °C | 5 | ||
| Electrostatic discharge voltage, human body model | VESD | 2000 | V | class 2, human body model | 5 | ||
| Electrostatic discharge voltage, machine model | VESD | 200 | V | machine model | 5 | ||
| Electrostatic discharge voltage, charged device model | VESD | 500 | V | charged device model | 5 | ||
| Thermal resistance from junction to ambient | Rth(j-a) | 150 | K/W | in free air | 5 | ||
| Thermal resistance from junction to case | Rth(j-c) | 95 | K/W | 5 |
CAD (KiCad official)
- Symbol:
TEA1791T - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
tea1791t-etched.step/tea1791t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tea1791t.step/tea1791t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: NXP Semicon datasheet (12 pp, sha256
4fdf4d6244583488, retrieved 2026-10-20, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).