UCC2892PW

Texas Instruments · AC-DC Controllers And Regulators · TSSOP-16

UCC2892PW from Texas Instruments, in a TSSOP-16. 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	RTDEL	input	A resistor from this pin to GND programs the turn-on delay of the two gate drive outputs to accommodate the resonant transitions of the active clamp power converter.
2	RTON	input	A resistor from this pin to GND programs an internal current source that charges the internal timing capacitor.
3	RTOFF	input	A resistor from this pin to GND programs an internal current source that discharges the internal timing capacitor.
4	VREF	power_in	This 5-V reference can supply an external load of up to 5 mA and should be bypassed to AGND as close as possible to the device.
5	SYNC	input	This unidirectional input synchronizes the internal oscillator, and the synchronizing frequency must be higher than the free-running frequency, with a minimum pulse width of approximately 50 ns.
6	GND	power_in	This pin is the fundamental analog ground for the PWM control circuitry and should be connected directly to PGND at the device.
7	CS	input	This pin senses peak current for current-mode control and current limiting, with pulse-by-pulse current limiting activating at approximately 1.27 V for the UCC2892.
8	RSLOPE	input	A resistor from this pin to GND sets the amplitude of the internal slope compensation current.
9	FB	input	This pin receives the control voltage from an external optocoupler or error amplifier to set the PWM duty cycle.
10	SS/SD	input	A capacitor from this pin to GND programs the soft-start interval, is charged by an internal current source of IRTON, and is discharged by a current source equal to IRTON during a fault.
11	PGND	power_in	This pin is the current return for the high-current output drivers OUT and AUX and should be kept as short as possible on the switching current path.
12	AUX	output	This output drives the auxiliary clamp MOSFET, turning it on when the main switch turns off, with 2-A source turn-on current and 2-A sink turn-off current.
13	OUT	output	This output drives the main N-channel MOSFET with 2-A source turn-on current and 2-A sink turn-off current, and a 10-kΩ resistor to PGND is recommended.
14	VDD	power_in	This is the power supply for the device, which requires a 1-µF capacitor from VDD to PGND with a value at least 10 times greater than the capacitor on VREF.
15	LINEUV	input	This pin enables and disables the converter by monitoring the bulk input voltage against a 1.27-V threshold, with hysteresis set by an internal current source.
16	LINEOV	input	For the UCC2892, this pin provides the line overvoltage function, scaling the input voltage to a precise 1.27-V threshold with user-programmable hysteresis.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	TSSOP-16
Category	Power Management (PMIC)
Pins	16

CAD (KiCad official)

Symbol: UCC2892PW
Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
3D model: TSSOP-16 (KiCad packages3D, STEP)
3D model files: ucc2892pw-etched.step / ucc2892pw-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ucc2892pw.step / ucc2892pw.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (41 pp, sha256 0b123b68deef52c5, 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

# UCC2892PW

**Texas Instruments** · AC-DC Controllers And Regulators · TSSOP-16

UCC2892PW from Texas Instruments, in a TSSOP-16. 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 | RTDEL | input | A resistor from this pin to GND programs the turn-on delay of the two gate drive outputs to accommodate the resonant transitions of the active clamp power converter. |
| 2 | RTON | input | A resistor from this pin to GND programs an internal current source that charges the internal timing capacitor. |
| 3 | RTOFF | input | A resistor from this pin to GND programs an internal current source that discharges the internal timing capacitor. |
| 4 | VREF | power_in | This 5-V reference can supply an external load of up to 5 mA and should be bypassed to AGND as close as possible to the device. |
| 5 | SYNC | input | This unidirectional input synchronizes the internal oscillator, and the synchronizing frequency must be higher than the free-running frequency, with a minimum pulse width of approximately 50 ns. |
| 6 | GND | power_in | This pin is the fundamental analog ground for the PWM control circuitry and should be connected directly to PGND at the device. |
| 7 | CS | input | This pin senses peak current for current-mode control and current limiting, with pulse-by-pulse current limiting activating at approximately 1.27 V for the UCC2892. |
| 8 | RSLOPE | input | A resistor from this pin to GND sets the amplitude of the internal slope compensation current. |
| 9 | FB | input | This pin receives the control voltage from an external optocoupler or error amplifier to set the PWM duty cycle. |
| 10 | SS/SD | input | A capacitor from this pin to GND programs the soft-start interval, is charged by an internal current source of IRTON, and is discharged by a current source equal to IRTON during a fault. |
| 11 | PGND | power_in | This pin is the current return for the high-current output drivers OUT and AUX and should be kept as short as possible on the switching current path. |
| 12 | AUX | output | This output drives the auxiliary clamp MOSFET, turning it on when the main switch turns off, with 2-A source turn-on current and 2-A sink turn-off current. |
| 13 | OUT | output | This output drives the main N-channel MOSFET with 2-A source turn-on current and 2-A sink turn-off current, and a 10-kΩ resistor to PGND is recommended. |
| 14 | VDD | power_in | This is the power supply for the device, which requires a 1-µF capacitor from VDD to PGND with a value at least 10 times greater than the capacitor on VREF. |
| 15 | LINEUV | input | This pin enables and disables the converter by monitoring the bulk input voltage against a 1.27-V threshold, with hysteresis set by an internal current source. |
| 16 | LINEOV | input | For the UCC2892, this pin provides the line overvoltage function, scaling the input voltage to a precise 1.27-V threshold with user-programmable hysteresis. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-16 |
| Category | Power Management (PMIC) |
| Pins | 16 |

## CAD (KiCad official)

- Symbol: `UCC2892PW`
- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`
- 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files: `ucc2892pw-etched.step` / `ucc2892pw-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ucc2892pw.step` / `ucc2892pw.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/ucc2892.pdf) (41 pp, sha256 `0b123b68deef52c5`, 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](docs/ucc2892pw-datasheet.pdf)