component
UCC2895PWTR
Public Made by Adomby adom
Texas Instruments AC-DC Controllers And Regulators, TSSOP-20. 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
markdownUCC2895PWTR
Texas Instruments · AC-DC Controllers And Regulators · TSSOP-20
UCC2895PWTR from Texas Instruments, in a TSSOP-20. 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 | EAN | input | Inverting input to the error amplifier; keep below 3.6 V for proper operation. |
| 2 | EAOUT | output | Error amplifier output internally clamped to soft-start voltage; drives PWM and no-load comparators. |
| 3 | RAMP | input | Inverting input of the PWM comparator; receives oscillator ramp in voltage mode or current sense signal in current mode. |
| 4 | REF | power_out | 5-V ±1.2% voltage reference output supplying up to 5 mA to external loads; bypass with 0.1 μF to ground. |
| 5 | GND | power_in | Analog ground for all internal circuits except output stages. |
| 6 | SYNC | bidirectional | Bidirectional oscillator synchronization pin; serves as clock output or external clock input for synchronizing multiple devices. |
| 7 | CT | input | Oscillator timing capacitor connection; typically 100-880 pF to program switching frequency via fixed charging current. |
| 8 | RT | input | Oscillator timing resistor connection; ranges 40-120 kΩ to program switching frequency and soft-start charging current. |
| 9 | DELAB | input | Delay-programming pin setting dead time between complementary outputs OUTA and OUTB via external resistor (2.5-40 kΩ). |
| 10 | DELCD | input | Delay-programming pin setting dead time between complementary outputs OUTC and OUTD via external resistor (2.5-40 kΩ). |
| 11 | ADS | input | Adaptive delay set pin limiting voltage to 0-2.5 V; sets ratio between maximum and minimum output delay times. |
| 12 | CS | input | Current sense input for cycle-by-cycle current limiting in peak current mode and overcurrent protection (peak threshold 2.0 V, overcurrent 2.5 V). |
| 13 | OUTD | output | 100-mA complementary MOS driver output optimized for FET driver circuits; 20-35 ns rise/fall time into 100 pF load. |
| 14 | OUTC | output | 100-mA complementary MOS driver output phase-shifted relative to OUTA; 20-35 ns rise/fall time into 100 pF load. |
| 15 | VDD | power_in | Power supply input (10-16.5 V recommended); must be bypassed with minimum 1 μF low-ESR capacitor to PGND. |
| 16 | PGND | power_in | Output stage ground reference carrying high switching currents; must be connected to GND with low-impedance trace. |
| 17 | OUTB | output | 100-mA complementary MOS driver output fully complementary to OUTA at 50% duty cycle; 20-35 ns rise/fall time into 100 pF load. |
| 18 | OUTA | output | 100-mA complementary MOS driver output for first half-bridge; 20-35 ns rise/fall time into 100 pF load. |
| 19 | SS/DISB | input | Soft-start and disable pin combining independent functions; sources 35 μA charging current and sinks 350 μA during soft-start. |
| 20 | EAP | input | Non-inverting input to the error amplifier; keep below 3.6 V for proper operation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-20 |
| Category | Power Management (PMIC) |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
UCC2895PWTR - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
ucc2895pwtr-etched.step/ucc2895pwtr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ucc2895pwtr.step/ucc2895pwtr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (61 pp, sha256
839591a78c6304d9, retrieved 2026-09-27, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).