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UCD8220PWP

Texas Instruments · Global Sourcing Parts · HTSSOP-16-EP

UCD8220PWP from Texas Instruments, in a HTSSOP-16-EP. 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 NC unconnected No internal connection.
2 CLK input Clock input carrying the operating frequency and maximum duty-cycle limit pulse train; it is a high-impedance digital input that accepts 3.3-V logic signals up to 2 MHz and uses an internal Schmitt trigger.
3 3V3 power_out Regulated 3.3-V rail from the onboard linear regulator, capable of sourcing up to 10 mA, with a 0.22-µF ceramic capacitor placed from this pin to analog ground.
4 ISET input Sets the current used for slope compensation in peak current-mode control or the internal capacitor charging in voltage-mode control.
5 AGND power_in Analog ground return.
6 CTRL input Error feedback voltage input from the external error amplifier, multiplied by 0.5 and routed to the negative input of the PWM comparator.
7 CLF output Current-limit flag: when CS exceeds ILIM minus 25 mV the output driver is forced low and CLF goes high, latched high until the next rising edge on CLK.
8 ILIM input Current-limit threshold set pin, adjustable from 0.25 V to 1 V, with a default of 0.5 V when open.
9 CS input Current-sense input to a fast current-limit comparator that provides cycle-by-cycle current limiting to protect the power stage.
10 PGND power_in Power ground return, to be connected close to the source of the power MOSFET.
11 OUT2 output High-current TrueDrive integrated circuit driver output, rated at ±4 A into the gate of a MOSFET.
12 OUT1 output High-current TrueDrive integrated circuit driver output, rated at ±4 A into the gate of a MOSFET.
13 PVDD power_in Supply for the output drivers, not connected internally to the VDD rail, with its bypass capacitor returned to PGND; the recommended supply range is 4.5 V to 15.5 V.
14 VDD power_in Supply input for the control circuitry, bypassed with at least 4.7 µF returned to AGND; the recommended supply range is 4.5 V to 15.5 V.
15 NC unconnected No internal connection.
16 NC unconnected No internal connection.
17 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package HTSSOP-16-EP
Category Global Sourcing Parts
Pins 17

CAD (KiCad official)

  • Symbol: UCD8220PWP
  • Footprint: Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm
  • 3D model: HTSSOP-16-EP (KiCad packages3D, STEP)
  • 3D model files: ucd8220pwp-etched.step / ucd8220pwp-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ucd8220pwp.step / ucd8220pwp.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (34 pp, sha256 4f7ca9e1174bff54, retrieved 2026-10-11, tier: lcsc)
  • 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