component
UC3638DWTR
Public Made by Adomby adom
Texas Instruments Current Sensors, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownUC3638DWTR
Texas Instruments · Current Sensors · SOIC-20-300mil
UC3638DWTR from Texas Instruments, in a SOIC-20-300mil. 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 | RT | passive | Oscillator timing resistor connection that sets the triangle oscillator frequency together with CT. |
| 2 | SD | input | Remote shutdown input with a 2.5V threshold; absolute maximum VEE-0.3V and above. |
| 3 | AOUT1 | output | Open-collector driver output A1 rated 60V maximum and 50mA, used as a highside drive signal in a full bridge. |
| 4 | AOUT2 | output | Totem-pole output driver A2 referenced to PVE, rated 0.25A continuous and 500mA peak. |
| 5 | VCC | power_in | Positive supply input, 40V absolute maximum referenced to VEE, with undervoltage lockout. |
| 6 | PVE | power_in | Reference connection for the AOUT2 and BOUT2 totem-pole output drivers (output ground/low-side reference). |
| 7 | BOUT2 | output | Totem-pole output driver B2 referenced to PVE, rated 0.25A continuous and 500mA peak. |
| 8 | BOUT1 | output | Open-collector driver output B1 rated 60V maximum and 50mA, used as a highside drive signal in a full bridge. |
| 9 | DB | input | Deadband adjust input, programmed by tapping a voltage divider off the 5V reference; 0.3 to 10V absolute maximum. |
| 10 | AREFIN | input | Programmable input to the reference buffer that sets AREF, allowing single or dual supply operation; absolute maximum VEE-0.3V and above. |
| 11 | AREF | output | Buffered analog reference output (ramp/error-amp midpoint reference) set by AREFIN; absolute maximum VEE-0.3V and above. |
| 12 | COMP | output | Voltage (error) amplifier output used for loop compensation and feeding the PWM comparators. |
| 13 | INV | input | Inverting input of the voltage amplifier; 0.3 to 10V absolute maximum. |
| 14 | REF | power_out | Precision 5V reference output, internally current limited; typical 5V at -1mA. |
| 15 | VEE | power_in | Negative supply / ground reference for the device; VCC is rated 40V above it. |
| 16 | CS+ | input | Positive input of the differential X5 current sense amplifier; VEE-1V to VCC. |
| 17 | CSOUT | output | Current sense amplifier output; 0.3 to 10V absolute maximum. |
| 18 | CS- | input | Negative input of the differential X5 current sense amplifier; VEE-1V to VCC. |
| 19 | CT | passive | Oscillator timing capacitor connection that sets the triangle oscillator frequency together with RT; absolute maximum VEE-0.3V and above. |
| 20 | PVSET | input | Oscillator peak/valley amplitude program input, set from a divider off the 5V reference; 0.3 to 10V absolute maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-20-300mil |
| Category | Magnetic Sensors |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
UC3638DWTR - Footprint:
Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm - 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
- 3D model files:
uc3638dwtr-etched.step/uc3638dwtr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);uc3638dwtr.step/uc3638dwtr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (18 pp, sha256
a4229ce925fc892c, retrieved 2026-10-10, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(vision), consensusclaude-opus-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).