component
TEA1733T
Public Made by Adomby adom
NXP Semicon AC-DC Controllers And Regulators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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TEA1733T
NXP Semicon · AC-DC Controllers And Regulators · SOIC-8
TEA1733T from NXP Semicon, in a SOIC-8. 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 | VCC | power_in | Supply voltage pin with a continuous rating of 0.4 V to +30 V (35 V for t < 100 ms), a start-up voltage of 20.6 V typical, a UVLO threshold of 12.2 V typical, and an internal clamp at 22 V typical during restart power-down. |
| 2 | GND | power_in | Ground reference pin; all voltages in the characteristics are measured with respect to pin 2. |
| 3 | DRIVER | output | Gate driver output for the power MOSFET, with typically 300 mA source and 750 mA sink capability and a maximum output voltage of 10.5 V typical. |
| 4 | ISENSE | input | Current sense input across external sense resistor R9, rated 0.4 V to +5 V, with a maximum sense voltage Vsense(max) of 0.51 V typical and 300 ns typical leading edge blanking time. |
| 5 | VINSENSE | input | Input voltage protection input for mains detection, rated 0.4 V to +5.5 V, with a start level of 0.94 V typical and a restart when it falls below 0.72 V or rises above 3.52 V typical. |
| 6 | PROTECT | input | General purpose protection input rated 0.4 V to +5 V that stops the converter (latched protection) when pulled above 0.8 V typical or below 0.5 V typical. |
| 7 | CTRL | input | Control input rated 0.4 V to +5.5 V that sets the peak current and output power, connected internally to 5.4 V through 7 kΩ, with a maximum duty cycle of 72 % typical. |
| 8 | OPTIMER | bidirectional | Overpower and restart timer pin rated 0.4 V to +5 V, with overpower protection triggered at 2.5 V typical and restart thresholds of 1.2 V (low) and 4.5 V (high) typical. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | NXP Semicon |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VCC supply voltage, continuous | VCC | -0.4 | 30 | V | continuous | 10 | |
| VCC supply voltage | VCC | 35 | V | t < 100 ms | 10 | ||
| Voltage on pin VINSENSE | VVINSENSE | -0.4 | 5.5 | V | current limited | 10 | |
| Voltage on pin PROTECT | VPROTECT | -0.4 | 5 | V | current limited | 10 | |
| Voltage on pin CTRL | VCTRL | -0.4 | 5.5 | V | 10 | ||
| Input/output voltage on pin OPTIMER | VIO(OPTIMER) | -0.4 | 5 | V | 10 | ||
| Voltage on pin ISENSE | VISENSE | -0.4 | 5 | V | current limited | 10 | |
| Current on pin VCC | ICC | 0.4 | A | < 10 % | 10 | ||
| Input current on pin VINSENSE | II(VINSENSE) | -1 | 1 | mA | 10 | ||
| Input current on pin PROTECT | II(PROTECT) | -1 | 1 | mA | 10 | ||
| Current on pin CTRL | ICTRL | -3 | 0 | mA | 10 | ||
| Current on pin ISENSE | IISENSE | -10 | 1 | mA | 10 | ||
| Current on pin DRIVER | IDRIVER | -0.4 | 1 | A | < 10 % | 10 | |
| Total power dissipation | Ptot | 0.5 | W | Tamb < 75 °C | 10 | ||
| Storage temperature | Tstg | -55 | 150 | °C | 10 | ||
| Junction temperature | Tj | -40 | 150 | °C | 10 | ||
| start-up voltage | Vstartup | 18.6 | 20.6 | 22.6 | V | 12 | |
| undervoltage lockout threshold voltage | Vth(UVLO) | 11.2 | 12.2 | 13.2 | V | 12 | |
| hysteresis voltage | Vhys | 8 | 9 | 10 | V | Vstartup - Vth(UVLO) | 12 |
| start-up supply current | ICC(startup) | 5 | 10 | 15 | µA | VCC < Vstartup | 12 |
| operating supply current | ICC(oper) | 0.4 | 0.5 | 0.6 | mA | no load on pin DRIVER | 12 |
| latched reset voltage | Vrst(latch) | 4 | 5 | 6 | V | 12 | |
| start voltage on pin VINSENSE (detection level) | Vstart(VINSENSE) | 0.89 | 0.94 | 0.99 | V | 12 | |
| LOW-level detection voltage on pin VINSENSE | Vdet(L)(VINSENSE) | 0.68 | 0.72 | 0.76 | V | 12 | |
| HIGH-level detection voltage on pin VINSENSE | Vdet(H)(VINSENSE) | 3.39 | 3.52 | 3.65 | V | 12 | |
| LOW-level detection voltage on pin PROTECT | Vdet(L)(PROTECT) | 0.47 | 0.5 | 0.53 | V | 12 | |
| HIGH-level detection voltage on pin PROTECT | Vdet(H)(PROTECT) | 0.75 | 0.8 | 0.85 | V | 12 | |
| output current on pin PROTECT | IO(PROTECT) | -34 | -32 | -30 | µA | VPROTECT = Vlow(PROTECT) | 12 |
| output current on pin PROTECT | IO(PROTECT) | 87 | 107 | 127 | µA | VPROTECT = Vhigh(PROTECT) | 12 |
| clamp voltage on pin PROTECT | Vclamp(PROTECT) | 3.5 | 4.1 | 4.7 | V | II(PROTECT) = 200 µA [1] | 12 |
| VCTRL voltage on pin CTRL for minimum flyback peak current | VCTRL | 1.5 | 1.8 | 2.1 | V | for minimum flyback peak current | 12 |
| VCTRL voltage on pin CTRL for maximum flyback peak current | VCTRL | 3.4 | 3.9 | 4.3 | V | for maximum flyback peak current | 12 |
| internal resistance on pin CTRL | Rint(CTRL) | 5 | 7 | 9 | kΩ | 12 | |
| output current on pin CTRL | IO(CTRL) | -0.7 | -0.5 | -0.3 | mA | VCTRL = 1.4 V | 13 |
| output current on pin CTRL | IO(CTRL) | -0.28 | -0.2 | -0.12 | mA | VCTRL = 3.7 V | 13 |
| oscillator frequency | fosc | 62 | 66.5 | 71 | kHz | 13 | |
| modulation frequency | fmod | 210 | 280 | 350 | Hz | 13 | |
| modulation frequency variation | 3 | 4 | 5 | kHz | 13 | ||
| maximum duty cycle | δmax | 68.5 | 72 | 79 | % | 13 | |
| protection voltage on pin OPTIMER | Vprot(OPTIMER) | 2.4 | 2.5 | 2.6 | V | 13 | |
| protection current on pin OPTIMER | Iprot(OPTIMER) | 100 | 150 | 200 | µA | no overpower situation | 13 |
| protection current on pin OPTIMER | Iprot(OPTIMER) | -12.2 | -10.7 | -9.2 | µA | overpower situation | 13 |
| restart voltage on pin OPTIMER | Vrestart(OPTIMER) | 0.8 | 1.2 | 1.6 | V | low level | 13 |
| restart voltage on pin OPTIMER | Vrestart(OPTIMER) | 4.1 | 4.5 | 4.9 | V | high level | 13 |
| restart current on pin OPTIMER | Irestart(OPTIMER) | -127 | -107 | -87 | µA | charging OPTIMER capacitor | 13 |
| restart current on pin OPTIMER | Irestart(OPTIMER) | -0.1 | 0 | 0.1 | µA | discharging OPTIMER capacitor | 13 |
| maximum sense voltage | Vsense(max) | 0.48 | 0.51 | 0.54 | V | V/t = 50 mV/s; VVINSENSE = 0.78 V | 13 |
| maximum sense voltage | Vsense(max) | 0.5 | 0.53 | 0.56 | V | V/t = 200 mV/s; VVINSENSE = 0.78 V | 13 |
| overpower protection sense threshold voltage | Vth(sense)opp | 370 | 400 | 430 | mV | 13 | |
| slope compensation voltage on pin ISENSE | VISENSE/t | 17 | 25 | 33 | mV/s | V/t = 50 mV/s | 13 |
| leading edge blanking time | tleb | 250 | 300 | 350 | ns | 13 | |
| soft start current | Istart(soft) | -63 | -55 | -47 | µA | 13 | |
| soft start resistance | Rstart(soft) | 12 | kΩ | 14 | |||
| source current on pin DRIVER | Isource(DRIVER) | 0.25 | 0.3 | A | VDRIVER =2V | 14 | |
| sink current on pin DRIVER | Isink(DRIVER) | 0.25 | 0.3 | A | VDRIVER =2V | 14 | |
| sink current on pin DRIVER | Isink(DRIVER) | 0.6 | 0.75 | A | VDRIVER = 10 V | 14 | |
| maximum output voltage on pin DRIVER | VO(DRIVER)max | 9 | 10.5 | 12 | V | 14 | |
| IC protection level temperature | Tpl(IC) | 130 | 140 | 150 | °C | 14 | |
| thermal resistance from junction to ambient | Rth(j-a) | 150 | K/W | in free air; JEDEC test board | 11 | ||
| thermal resistance from junction to case | Rth(j-c) | 79 | K/W | in free air; JEDEC test board | 11 |
CAD (KiCad official)
- Symbol:
TEA1733T - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
tea1733t-etched.step/tea1733t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tea1733t.step/tea1733t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: NXP Semicon datasheet (21 pp, sha256
20f7153a51aefe8b, retrieved 2026-10-19, 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).
# TEA1733T
**NXP Semicon** · AC-DC Controllers And Regulators · SOIC-8
TEA1733T from NXP Semicon, in a SOIC-8. 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 | VCC | power_in | Supply voltage pin with a continuous rating of 0.4 V to +30 V (35 V for t < 100 ms), a start-up voltage of 20.6 V typical, a UVLO threshold of 12.2 V typical, and an internal clamp at 22 V typical during restart power-down. |
| 2 | GND | power_in | Ground reference pin; all voltages in the characteristics are measured with respect to pin 2. |
| 3 | DRIVER | output | Gate driver output for the power MOSFET, with typically 300 mA source and 750 mA sink capability and a maximum output voltage of 10.5 V typical. |
| 4 | ISENSE | input | Current sense input across external sense resistor R9, rated 0.4 V to +5 V, with a maximum sense voltage Vsense(max) of 0.51 V typical and 300 ns typical leading edge blanking time. |
| 5 | VINSENSE | input | Input voltage protection input for mains detection, rated 0.4 V to +5.5 V, with a start level of 0.94 V typical and a restart when it falls below 0.72 V or rises above 3.52 V typical. |
| 6 | PROTECT | input | General purpose protection input rated 0.4 V to +5 V that stops the converter (latched protection) when pulled above 0.8 V typical or below 0.5 V typical. |
| 7 | CTRL | input | Control input rated 0.4 V to +5.5 V that sets the peak current and output power, connected internally to 5.4 V through 7 kΩ, with a maximum duty cycle of 72 % typical. |
| 8 | OPTIMER | bidirectional | Overpower and restart timer pin rated 0.4 V to +5 V, with overpower protection triggered at 2.5 V typical and restart thresholds of 1.2 V (low) and 4.5 V (high) typical. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | NXP Semicon |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VCC supply voltage, continuous | VCC | -0.4 | | 30 | V | continuous | 10 |
| VCC supply voltage | VCC | | | 35 | V | t < 100 ms | 10 |
| Voltage on pin VINSENSE | VVINSENSE | -0.4 | | 5.5 | V | current limited | 10 |
| Voltage on pin PROTECT | VPROTECT | -0.4 | | 5 | V | current limited | 10 |
| Voltage on pin CTRL | VCTRL | -0.4 | | 5.5 | V | | 10 |
| Input/output voltage on pin OPTIMER | VIO(OPTIMER) | -0.4 | | 5 | V | | 10 |
| Voltage on pin ISENSE | VISENSE | -0.4 | | 5 | V | current limited | 10 |
| Current on pin VCC | ICC | | | 0.4 | A | < 10 % | 10 |
| Input current on pin VINSENSE | II(VINSENSE) | -1 | | 1 | mA | | 10 |
| Input current on pin PROTECT | II(PROTECT) | -1 | | 1 | mA | | 10 |
| Current on pin CTRL | ICTRL | -3 | | 0 | mA | | 10 |
| Current on pin ISENSE | IISENSE | -10 | | 1 | mA | | 10 |
| Current on pin DRIVER | IDRIVER | -0.4 | | 1 | A | < 10 % | 10 |
| Total power dissipation | Ptot | | | 0.5 | W | Tamb < 75 °C | 10 |
| Storage temperature | Tstg | -55 | | 150 | °C | | 10 |
| Junction temperature | Tj | -40 | | 150 | °C | | 10 |
| start-up voltage | Vstartup | 18.6 | 20.6 | 22.6 | V | | 12 |
| undervoltage lockout threshold voltage | Vth(UVLO) | 11.2 | 12.2 | 13.2 | V | | 12 |
| hysteresis voltage | Vhys | 8 | 9 | 10 | V | Vstartup - Vth(UVLO) | 12 |
| start-up supply current | ICC(startup) | 5 | 10 | 15 | µA | VCC < Vstartup | 12 |
| operating supply current | ICC(oper) | 0.4 | 0.5 | 0.6 | mA | no load on pin DRIVER | 12 |
| latched reset voltage | Vrst(latch) | 4 | 5 | 6 | V | | 12 |
| start voltage on pin VINSENSE (detection level) | Vstart(VINSENSE) | 0.89 | 0.94 | 0.99 | V | | 12 |
| LOW-level detection voltage on pin VINSENSE | Vdet(L)(VINSENSE) | 0.68 | 0.72 | 0.76 | V | | 12 |
| HIGH-level detection voltage on pin VINSENSE | Vdet(H)(VINSENSE) | 3.39 | 3.52 | 3.65 | V | | 12 |
| LOW-level detection voltage on pin PROTECT | Vdet(L)(PROTECT) | 0.47 | 0.5 | 0.53 | V | | 12 |
| HIGH-level detection voltage on pin PROTECT | Vdet(H)(PROTECT) | 0.75 | 0.8 | 0.85 | V | | 12 |
| output current on pin PROTECT | IO(PROTECT) | -34 | -32 | -30 | µA | VPROTECT = Vlow(PROTECT) | 12 |
| output current on pin PROTECT | IO(PROTECT) | 87 | 107 | 127 | µA | VPROTECT = Vhigh(PROTECT) | 12 |
| clamp voltage on pin PROTECT | Vclamp(PROTECT) | 3.5 | 4.1 | 4.7 | V | II(PROTECT) = 200 µA [1] | 12 |
| VCTRL voltage on pin CTRL for minimum flyback peak current | VCTRL | 1.5 | 1.8 | 2.1 | V | for minimum flyback peak current | 12 |
| VCTRL voltage on pin CTRL for maximum flyback peak current | VCTRL | 3.4 | 3.9 | 4.3 | V | for maximum flyback peak current | 12 |
| internal resistance on pin CTRL | Rint(CTRL) | 5 | 7 | 9 | kΩ | | 12 |
| output current on pin CTRL | IO(CTRL) | -0.7 | -0.5 | -0.3 | mA | VCTRL = 1.4 V | 13 |
| output current on pin CTRL | IO(CTRL) | -0.28 | -0.2 | -0.12 | mA | VCTRL = 3.7 V | 13 |
| oscillator frequency | fosc | 62 | 66.5 | 71 | kHz | | 13 |
| modulation frequency | fmod | 210 | 280 | 350 | Hz | | 13 |
| modulation frequency variation | | 3 | 4 | 5 | kHz | | 13 |
| maximum duty cycle | δmax | 68.5 | 72 | 79 | % | | 13 |
| protection voltage on pin OPTIMER | Vprot(OPTIMER) | 2.4 | 2.5 | 2.6 | V | | 13 |
| protection current on pin OPTIMER | Iprot(OPTIMER) | 100 | 150 | 200 | µA | no overpower situation | 13 |
| protection current on pin OPTIMER | Iprot(OPTIMER) | -12.2 | -10.7 | -9.2 | µA | overpower situation | 13 |
| restart voltage on pin OPTIMER | Vrestart(OPTIMER) | 0.8 | 1.2 | 1.6 | V | low level | 13 |
| restart voltage on pin OPTIMER | Vrestart(OPTIMER) | 4.1 | 4.5 | 4.9 | V | high level | 13 |
| restart current on pin OPTIMER | Irestart(OPTIMER) | -127 | -107 | -87 | µA | charging OPTIMER capacitor | 13 |
| restart current on pin OPTIMER | Irestart(OPTIMER) | -0.1 | 0 | 0.1 | µA | discharging OPTIMER capacitor | 13 |
| maximum sense voltage | Vsense(max) | 0.48 | 0.51 | 0.54 | V | V/t = 50 mV/s; VVINSENSE = 0.78 V | 13 |
| maximum sense voltage | Vsense(max) | 0.5 | 0.53 | 0.56 | V | V/t = 200 mV/s; VVINSENSE = 0.78 V | 13 |
| overpower protection sense threshold voltage | Vth(sense)opp | 370 | 400 | 430 | mV | | 13 |
| slope compensation voltage on pin ISENSE | VISENSE/t | 17 | 25 | 33 | mV/s | V/t = 50 mV/s | 13 |
| leading edge blanking time | tleb | 250 | 300 | 350 | ns | | 13 |
| soft start current | Istart(soft) | -63 | -55 | -47 | µA | | 13 |
| soft start resistance | Rstart(soft) | 12 | | | kΩ | | 14 |
| source current on pin DRIVER | Isource(DRIVER) | 0.25 | 0.3 | | A | VDRIVER =2V | 14 |
| sink current on pin DRIVER | Isink(DRIVER) | 0.25 | 0.3 | | A | VDRIVER =2V | 14 |
| sink current on pin DRIVER | Isink(DRIVER) | 0.6 | 0.75 | | A | VDRIVER = 10 V | 14 |
| maximum output voltage on pin DRIVER | VO(DRIVER)max | 9 | 10.5 | 12 | V | | 14 |
| IC protection level temperature | Tpl(IC) | 130 | 140 | 150 | °C | | 14 |
| thermal resistance from junction to ambient | Rth(j-a) | | 150 | | K/W | in free air; JEDEC test board | 11 |
| thermal resistance from junction to case | Rth(j-c) | | 79 | | K/W | in free air; JEDEC test board | 11 |
## CAD (KiCad official)
- Symbol: `TEA1733T`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `tea1733t-etched.step` / `tea1733t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tea1733t.step` / `tea1733t.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [NXP Semicon datasheet](https://www.nxp.com/docs/en/data-sheet/TEA1733T.pdf) (21 pp, sha256 `20f7153a51aefe8b`, retrieved 2026-10-19, 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](docs/tea1733t-datasheet.pdf)