# TM5102

**TM(Shenzhen Titan Micro Elec)** · AC-DC Controllers & Regulators · SOP-8

TM5102 from TM(Shenzhen Titan Micro Elec), in a SOP-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 | VDD | power_in | Power supply input; IC starts at VDD-ON 15.5V typ, shuts off below 8.5V (UVLO), OVP above 23V, recommended 10~23V, absolute max 30V. |
| 2 | NC | unconnected | No connect (empty pin). |
| 3 | FB | input | Voltage feedback pin connected to an optocoupler; input range 0~5.5V recommended, -0.3~6.0V absolute max, overload threshold 3.7V. |
| 4 | SENSE | input | Current sense pin (MOSFET source) with an external resistor sensing MOSFET current; input -0.3~6.0V absolute max, 350ns leading edge blanking. |
| 5 | GATE | output | Gate drive output for the external MOSFET, clamped at 17V typical. |
| 6 | NC | unconnected | No connect (empty pin). |
| 7 | NC | unconnected | No connect (empty pin). |
| 8 | GND | power_in | Ground pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TM(Shenzhen Titan Micro Elec) |
| Package | SOP-8 |
| Category | Power Supply Chip |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply voltage (absolute max) | VDD |  |  | 30 | V |  | 3 |
| FB pin input voltage (absolute max) | VFB | -0.3 |  | 6 | V |  | 3 |
| CS pin input voltage (absolute max) | VCS | -0.3 |  | 6 | V |  | 3 |
| Operating junction temperature | TJ | -40 |  | 150 | ℃ |  | 3 |
| Storage temperature | TSTG | -40 |  | 150 | ℃ |  | 3 |
| Operating ambient temperature (absolute) | TA | -40 |  | 85 | ℃ |  | 3 |
| Soldering temperature | TL |  |  | 260 | ℃ | 10 秒 | 3 |
| Supply voltage (recommended) | VDD | 10 |  | 23 | V |  | 3 |
| FB pin input voltage (recommended) | VFB | 0 |  | 5.5 | V |  | 3 |
| Operating ambient temperature (recommended) | TA | -20 |  | 80 | ℃ |  | 3 |
| Thermal resistance junction to case | θJC |  | 82.5 |  | ℃/W |  | 3 |
| Startup voltage | VDD-ON | 14.5 | 15.5 | 16.5 | V | VDD=15.5V, TA=25℃ | 4 |
| Shutdown voltage | VDD-OFF | 8.5 | 9.5 | 10.5 | V | VDD=15.5V, TA=25℃ | 4 |
| Startup current | IDD-ST |  | 5 | 20 | uA | VDD=VDD-ON-0.5V | 4 |
| Operating current | IDD-OP |  | 2.5 | 4 | mA |  | 4 |
| VDD overvoltage protection | VDD-OVP | 23 |  | 24 | V |  | 4 |
| VDD clamp voltage | VDD-CLAMP | 25 |  | 27 | V | IDD=5mA | 4 |
| FB open-circuit voltage | VFB-OPEN | 4.4 | 4.7 | 5 | V |  | 4 |
| Current limit (peak) | VCSTH-H | 1 |  | 1.1 | V |  | 4 |
| Current limit (valley) | VCSTH-L | 0.7 |  | 0.8 | V |  | 4 |
| Oscillator frequency | fOSC | 140 | 150 | 160 | KHz |  | 5 |
| Frequency deviation vs VDD | fDV |  | 0.2 | 1 | % | VDD=10V to 23V | 5 |
| Maximum duty cycle | DMAX | 75 | 80 | 85 | % |  | 5 |
| Output low voltage | VOL |  |  | 1.5 | V | VDD =15V, IO =20mA | 5 |
| Output high voltage | VOH | 10 |  |  | V | VDD =15V, IO =20mA | 5 |
| Gate rise time | TR |  | 240 |  | US | VDD =15V, CL=1nF | 5 |
| Gate fall time | TF |  | 75 |  | US | VDD =15V, CL=1nF | 5 |
| Output clamp voltage | VG-CLAMP |  | 17 |  | V |  | 5 |
| Over-temperature protection | TOTP |  | 130 |  | ℃ |  | 5 |
| OTP hysteresis temperature | TOTP_SH |  | 105 |  | ℃ |  | 5 |
| PWM comparator gain | AV |  | 1.7 |  | V/V |  | 4 |
| FB input impedance | ZFB |  | 6 |  | KΩ |  | 4 |
| FB overload threshold | VFB-PL |  | 3.7 |  | V |  | 4 |
| Overload delay time | TPD |  | 50 |  | ms |  | 4 |
| Soft-start time | T_SS |  | 3 |  | ms |  | 4 |
| CS input impedance | ZCS |  | 5 |  | KΩ |  | 4 |
| Leading edge blanking time | TLEB |  | 350 |  | ns |  | 4 |
| Propagation delay time | TPD |  | 60 |  | ns |  | 4 |
| Frequency shuffling range | f△SHUFFLING | -6 |  | 6 | % |  | 5 |
| ESD HBM |  |  |  | 2 | KV | 人体模式, JESD22-A114 | 3 |
| ESD MM |  |  |  | 0.2 | KV | 机器模式, JESD22-A115 | 3 |

## CAD (KiCad official)

- Symbol: `TM5102`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `tm5102-etched.step` / `tm5102-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tm5102.step` / `tm5102.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TM(Shenzhen Titan Micro Elec) datasheet](docs/tm5102-datasheet.pdf) (10 pp, sha256 `94203a890fe3e5c3`, retrieved 2026-10-23, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/tm5102-datasheet.pdf)