component

TL2844BDR

Public Made by Adom

by adom

Texas Instruments AC-DC Controllers And Regulators, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)tl2844bdrfactory-2.0.0extractor-text

Verified TL2844BDR

by Ray · last 6 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

6 Nov 2026RayPublished by the parts factory: tier mfr, 14 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: TL2844BDR · SOIC-14 · 14 pins
  • ✓copper: 14 copper pads, none touching another net
  • ✓datasheet: all 14 pin names found in the 31-page datasheet
  • ✓distributor: lcsc C485095, digikey 296-21848-2-ND, mouser 595-TL2844BDR
  • ✓family: SOIC-14_3.9x8.7mm_P1.27mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-svlywr1o/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 14 pins = 14 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 14 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ tl2844bdr.kicad_sym✓ tl2844bdr.kicad_mod✓ tl2844bdr.step
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 17h ago
viewers tl2844bdr: viewers · Ray 17h ago
package.json Publish 0.1.0 · Ray 17h ago
page.json Set visibility: public · Ray 17h ago
README.md Publish 0.1.0 · Ray 17h ago
tl2844bdr-etched.glb Publish 0.1.0 · Ray 17h ago
tl2844bdr-etched.step tl2844bdr: factory component page (tier=mfr) · Ray 17h ago
tl2844bdr-hero.glb tl2844bdr: hero GLB from the etched model (keeps the MPN mark) · Ray 17h ago
tl2844bdr-hero.overlay.json Publish 0.1.0 · Ray 17h ago
tl2844bdr.glb Publish 0.1.0 · Ray 17h ago
tl2844bdr.kicad_mod Publish 0.1.0 · Ray 17h ago
tl2844bdr.kicad_sym Publish 0.1.0 · Ray 17h ago
tl2844bdr.lbr Publish 0.1.0 · Ray 17h ago
tl2844bdr.step Publish 0.1.0 · Ray 17h ago
verification.json Verified: Published by the parts factory: tier mfr, 14 pins · Ray 16h ago

TL2844BDR

Texas Instruments · AC-DC Controllers And Regulators · SOIC-14

TL2844BDR from Texas Instruments, in a SOIC-14. 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 COMP bidirectional Error amplifier compensation pin (I/O); error amplifier output sink current is limited to 10 mA maximum.
2 NC unconnected No internal connection; do not connect.
3 VFB input Error amplifier input; recommended input voltage 0 to 5.5 V.
4 NC unconnected No internal connection; do not connect.
5 ISENSE input Current sense comparator input; recommended input voltage 0 to 5.5 V.
6 NC unconnected No internal connection; do not connect.
7 RT/CT bidirectional Oscillator RC input (I/O); recommended input voltage 0 to 5.5 V.
8 POWER GROUND power_in Output PWM ground terminal; recommended voltage -0.1 to 1 V (14-pin D package only).
9 GND power_in Device power supply ground terminal; all voltages are specified with respect to this terminal.
10 OUTPUT output PWM output (totem-pole, drives N-channel MOSFETs); recommended output voltage 0 to 30 V, absolute maximum output current ±1 A.
11 VC power_in Output PWM positive voltage supply; recommended maximum 30 V (14-pin D package only).
12 VCC power_in Device positive voltage supply; recommended maximum 30 V, supply current externally limited to 25 mA maximum.
13 NC unconnected No internal connection; do not connect.
14 VREF power_in Oscillator voltage reference output; recommended reference output current is -20 mA.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-14
Category Power Management (PMIC)
Pins 14

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage VCC 30 V Low impedance source 4
Analog input voltage range VI -0.3 6.3 V VFB and ISENSE 4
Supply current ICC 30 mA 4
Output current IO -1 1 A 4
Error amplifier output sink current IO(sink) 10 mA 4
Output energy 5 μJ Capacitive load 4
Virtual junction temperature TJ 150 °C 4
Storage temperature range Tstg -65 150 °C 4
Supply voltage VCC 30 V 4
Supply voltage VC VC 30 V 14-pin D package only 4
Input voltage RT/CT VI 0 5.5 V RT/CT 4
Input voltage VFB and ISENSE VI 0 5.5 V VFB and ISENSE 4
Output voltage VO 0 30 V OUTPUT 4
Power ground voltage -0.1 1 V 14-pin D package only 4
Supply current, externally limited ICC 25 mA 4
Average output current IO 200 mA 4
Reference output current IO(ref) -20 mA 4
Oscillator frequency fosc 100 500 kHz 4
Operating free-air temperature TL284xB TJ -40 85 °C TL284xB 4
Junction-to-ambient thermal resistance RθJA 87.9 °C/W D (14 pins) 5
Output voltage 4.95 5 5.05 V IO = 1 mA, TJ = 25°C 5
Line regulation 6 20 mV VCC = 12 V to 25 V 5
Load regulation 6 25 mV IO = 1 mA to 20 mA 5
Average temperature coefficient of output voltage 0.2 0.4 mV/°C 5
Output voltage, worst-case variation 4.9 5.1 V VCC = 12 V to 25 V, IO = 1 mA to 20 mA 5
Short-circuit output current -30 -100 -180 mA 5
Initial accuracy 47 52 57 kHz TJ = 25°C 5
Initial accuracy 44 60 kHz TA = Tlow to Thigh 5
Initial accuracy 225 250 275 kHz TJ = 25°C, RT = 6.2 kΩ, CT = 1 nF 5
Voltage stability 0.2 1 % VCC = 12 V to 25 V 5
Temperature stability 5 % 5
Discharge current 7.8 8.3 8.8 mA TJ = 25°C, RT/CT = 2 V 5
Discharge current 7.5 8.8 mA RT/CT = 2 V 5
Feedback input voltage VFB 2.45 2.5 2.55 V COMP = 2.5 V 6
Input bias current -0.3 -1 μA 6
Open-loop voltage amplification AVOL 65 90 dB VO = 2 V to 4 V 6
Gain-bandwidth product 0.7 1 MHz 6
Supply-voltage rejection ratio 60 70 dB VCC = 12 V to 25 V 6
Output sink current 2 6 mA VFB = 2.7 V, COMP = 1.1 V 6
Output source current -0.5 -0.8 mA VFB = 2.3 V, COMP = 5 V 6
High-level output voltage 5 6 V VFB = 2.3 V, RL = 15 kΩ to GND 6
Low-level output voltage 0.7 1.1 V VFB = 2.7 V, RL = 15 kΩ to GND 6
Voltage amplification 2.85 3 3.15 V/V Measured between ISENSE and COMP, input 0 V to 0.8 V 6
Current-sense comparator threshold 0.9 1 1.1 V COMP = 5 V 6
High-level output voltage VOH 13 13.5 V IOH = -20 mA 7
High-level output voltage VOH 12 13.5 V IOH = -200 mA 7
Low-level output voltage VOL 0.1 0.4 V IOL = 20 mA 7
Low-level output voltage VOL 1.5 2.2 V IOL = 200 mA 7
Rise time 25 150 ns CL = 1 nF, TJ = 25°C 7
Fall time 25 150 ns CL = 1 nF, TJ = 25°C 7
UVLO saturation 0.7 1.2 V VCC = 5 V, IOL = 1 mA 7
Start threshold voltage TLx844B 15 16 17 V TLx844B 7
Minimum operating voltage after start-up TLx844B 9 10 11 V TLx844B 7
Maximum duty cycle TLx844B 46 48 50 % TLx844B 7
Minimum duty cycle 0 % 7
Start-up current 0.3 0.5 mA 7
Operating supply current ICC 11 17 mA VFB and ISENSE at 0 V 7
Limiting voltage 30 39 V ICC = 25 mA 7

CAD (KiCad official)

  • Symbol: TL2844BDR
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: tl2844bdr-etched.step / tl2844bdr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tl2844bdr.step / tl2844bdr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (31 pp, sha256 42e42dc7a6e780d9, retrieved 2026-11-06, 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