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TL2842BDR

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.

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TL2842BDR

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

TL2842BDR 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), with error amplifier output sink current limited to 10 mA absolute maximum.
2 NC unconnected No internal connection; do not connect.
3 VFB input Error amplifier input, with recommended input voltage 0 to 5.5 V (absolute maximum -0.3 V to 6.3 V).
4 NC unconnected No internal connection; do not connect.
5 ISENSE input Current sense comparator input, with recommended input voltage 0 to 5.5 V (absolute maximum -0.3 V to 6.3 V).
6 NC unconnected No internal connection; do not connect.
7 RT/CT bidirectional Oscillator RC input (I/O), with recommended input voltage 0 to 5.5 V and oscillator frequency 100 to 500 kHz.
8 POWER GROUND power_in Output PWM ground terminal, with recommended voltage -0.1 V to 1 V (14-pin D package only).
9 GND power_in Device power supply ground terminal, to which all device voltages are referenced.
10 OUTPUT output PWM output, with recommended output voltage 0 to 30 V and average output current of 200 mA.
11 VC power_in Output PWM positive voltage supply, with recommended voltage up to 30 V (14-pin D package only).
12 VCC power_in Device positive voltage supply, with recommended supply voltage up to 30 V and externally limited supply current of 25 mA.
13 NC unconnected No internal connection; do not connect.
14 VREF power_in Oscillator voltage reference output, with recommended reference output current of -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
Output stage supply voltage 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
Oscillator frequency fosc 100 500 kHz 4
Operating free-air temperature TL284xB TJ -40 85 °C TL284xB 4
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
Output-voltage long-term drift 5 25 mV After 1000 h at TJ = 25°C 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
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 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 6
Current-sense comparator threshold 0.9 1 1.1 V COMP = 5 V 6
Input bias current -2 -10 μA 6
Delay time to output 150 300 ns VFB = 0 V to 2 V 6
High-level output voltage 13 13.5 V IOH = -20 mA 7
High-level output voltage 12 13.5 V IOH = -200 mA 7
Low-level output voltage 0.1 0.4 V IOL = 20 mA 7
Low-level output voltage 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 15 16 17 V TLx842B, TLx844B 7
Minimum operating voltage after start-up 9 10 11 V TLx842B, TLx844B 7
Maximum duty cycle 92 96 100 % TLx842B, TLx843B 7
Start-up current 0.3 0.5 mA 7
Operating supply current 11 17 mA VFB and ISENSE at 0 V 7
Limiting voltage 30 39 V ICC = 25 mA 7
Junction-to-ambient thermal resistance, D 14-pin RθJA 87.9 °C/W 5

CAD (KiCad official)

  • Symbol: TL2842BDR
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: tl2842bdr-etched.step / tl2842bdr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tl2842bdr.step / tl2842bdr.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 2026-11-05, 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