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TL2842DR
Public Made by Adomby adom
Texas Instruments AC-DC Controllers And Regulators, SOIC-14. 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
markdownTL2842DR
Texas Instruments · AC-DC Controllers And Regulators · SOIC-14
TL2842DR 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, acting as an input or output for the error amplifier. |
| 2 | NC | unconnected | Do not connect. |
| 3 | VFB | input | Error amplifier input, with analog input voltage range 0 to 5.5 V under recommended operating conditions. |
| 4 | NC | unconnected | Do not connect. |
| 5 | ISENSE | input | Current sense comparator input, with analog input voltage range 0 to 5.5 V under recommended operating conditions. |
| 6 | NC | unconnected | Do not connect. |
| 7 | RT/CT | bidirectional | Oscillator RC input, with input voltage range 0 to 5.5 V under recommended operating conditions. |
| 8 | POWER GROUND | power_in | Output PWM ground terminal, with recommended output voltage of -0.1 to 1 V for the D package. |
| 9 | GND | power_in | Device power supply ground terminal, to which all device voltages are referenced. |
| 10 | OUTPUT | output | PWM output, with output voltage range 0 to 30 V and average output current up to 200 mA under recommended operating conditions. |
| 11 | VC | power_in | Output PWM positive voltage supply, with supply voltage of 30 V maximum under recommended operating conditions. |
| 12 | VCC | power_in | Device positive voltage supply, with supply voltage of 30 V maximum under recommended operating conditions. |
| 13 | NC | unconnected | Do not connect. |
| 14 | REF | output | Oscillator voltage reference, with reference output current of -20 mA under recommended operating conditions. |
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 |
|---|---|---|---|---|---|---|---|
| Input voltage, VFB and ISENSE (analog input voltage range) | VI | -0.3 | 6.3 | V | 4 | ||
| Output voltage | VO | 35 | V | 4 | |||
| Input voltage, VC and D package only | VI | 35 | V | 4 | |||
| Supply current | ICC | 30 | mA | 4 | |||
| Output current | IO | -1 | 1 | A | 4 | ||
| Error amplifier output sink current | 10 | mA | 4 | ||||
| Virtual junction temperature | TJ | 150 | °C | 4 | |||
| Output energy (capacitive load) | 5 | µJ | 4 | ||||
| Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| VCC and VC supply voltage | VCC | 30 | V | 4 | |||
| VI, RT/CT input voltage | VI | 0 | 5.5 | V | 4 | ||
| VI, VFB and ISENSE input voltage | VI | 0 | 5.5 | V | 4 | ||
| VO, OUTPUT output voltage | VO | 0 | 30 | V | 4 | ||
| VO, POWER GROUND output voltage | VO | -0.1 | 1 | V | 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, TL284x | TA | -40 | 85 | °C | 4 | ||
| Output voltage | 4.95 | 5 | 5.05 | V | IO = 1 mA, TA = 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 | ||
| Temperature coefficient of output voltage | 0.2 | 0.4 | mV/°C | 5 | |||
| Output voltage with 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 TA = 25°C | 5 | ||
| Short-circuit output current | -30 | -100 | -180 | mA | 5 | ||
| Oscillator frequency | 47 | 52 | 57 | kHz | TA = 25°C | 5 | |
| Frequency change with supply voltage | 2 | 10 | Hz/kHz | VCC = 12 V to 25 V | 5 | ||
| Feedback input voltage | 2.45 | 2.5 | 2.55 | V | COMP at 2.5 V | 5 | |
| Input bias current | -0.3 | -1 | µA | 5 | |||
| Open-loop voltage amplification | 65 | 90 | dB | VO = 2 V to 4 V | 5 | ||
| Gain-bandwidth product | 0.7 | 1 | MHz | 5 | |||
| Supply-voltage rejection ratio (error amplifier) | 60 | 70 | dB | VCC = 12 V to 25 V | 5 | ||
| Output sink current | 2 | 6 | mA | VFB at 2.7 V, COMP at 1.1 V | 5 | ||
| Output source current | -0.5 | -0.8 | mA | VFB at 2.3 V, COMP at 5 V | 5 | ||
| High-level output voltage (error amplifier) | 5 | 6 | V | VFB at 2.3 V, RL = 15 kΩ to GND | 5 | ||
| Low-level output voltage (error amplifier) | 0.7 | 1.1 | V | VFB at 2.7 V, RL = 15 kΩ to GND | 5 | ||
| Voltage amplification | 2.85 | 3 | 3.13 | V/V | See(4)(5) | 5 | |
| Current-sense comparator threshold | 0.9 | 1 | 1.1 | V | COMP at 5 V, see(4) | 5 | |
| Input bias current (current sense) | -2 | -10 | µA | 5 | |||
| Delay time to output | 150 | 300 | ns | 5 | |||
| High-level output voltage | 13 | 13.5 | V | IOH = -20 mA | 5 | ||
| High-level output voltage | 12 | 13.5 | V | IOH = -200 mA | 5 | ||
| Low-level output voltage | 0.1 | 0.4 | V | IOH = 20 mA | 5 | ||
| Low-level output voltage | 1.5 | 2.2 | V | IOH = 200 mA | 5 | ||
| Rise time | 25 | 150 | ns | CL = 1 nF, TA = 25°C | 5 | ||
| Fall time | 25 | 150 | ns | CL = 1 nF, TA = 25°C | 5 | ||
| Start threshold voltage (TLx842, TLx844) | 15 | 16 | 17 | V | 5 | ||
| Minimum operating voltage after startup (TLx842, TLx844) | 9 | 10 | 11 | V | 5 | ||
| Maximum duty cycle (TLx842, TLx843) | 92 | 97 | 100 | % | 6 | ||
| Minimum duty cycle | 0 | % | 6 | ||||
| Start-up current | 0.5 | 1 | mA | 6 | |||
| Operating supply current | 11 | 17 | mA | VFB and ISENSE at 0 V | 6 | ||
| Limiting voltage | 39 | V | ICC = 25 mA | 6 | |||
| Thermal resistance, junction-to-ambient, D (SOIC) 14 pins | RθJA | 87.9 | °C/W | 4 |
CAD (KiCad official)
- Symbol:
TL2842DR - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files:
tl2842dr-etched.step/tl2842dr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tl2842dr.step/tl2842dr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (30 pp, sha256
a83316c6a1cb9720, retrieved 2026-11-05, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).