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TM7780

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by Ray

TM Shenzhen Titan Micro Elec Energy Metering, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Datasheet

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Contents

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TM7780

TM Shenzhen Titan Micro Elec · Energy Metering · SOP-8

TM7780 from TM Shenzhen Titan Micro Elec, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VDD power_in Positive supply. Recommended 4.5-5.5 V (typ 5.0 V). Brown-out reset asserts below ~4.0 V (release ~4.3 V). Decouple with 0.1 µF + 10 µF to GND.
2 VAP input Current-channel differential positive input. Full-scale differential range ±43.75 mV peak between VAP/VAN. Equivalent input impedance ≈500 kΩ; input cap ≈6.4 pF. Absolute limits -2 V to +2 V.
3 VAN input Current-channel differential negative input. Paired with VAP; ±43.75 mV peak differential full-scale. Absolute limits -2 V to +2 V.
4 VBP input Voltage-channel single-ended positive input. Full-scale input range ±700 mV peak. Equivalent input impedance ≈6 MΩ. Typically driven from mains via resistor divider (e.g. 6×470 kΩ + 1 kΩ) with 0.1 µF to GND.
5 GND power_in Negative supply / system ground reference for all analog and digital signals.
6 CF output Active-power pulse output. Frequency proportional to real power: F_CF = (V1·V2·48 / V_REF²)·(f_CLK/128). 50% duty cycle. VOH ≥ VDD−0.5 V at Iout=5 mA; VOL ≤ 0.5 V at Iout=−5 mA. ±0.2% accuracy (IEC 687/1036).
7 CFA output RMS output pulse - selectable via SET: SET=GND outputs RMS current (F_CFAI = (V1·24/V_REF)·(f_CLK/512)); SET=VDD outputs RMS voltage (F_CFAU = (V2·2/V_REF)·(f_CLK/512)). ±0.5% accuracy, 50% duty cycle.
8 SET input Mode-select input with internal pull-down. Selects CFA output content: tie to GND (or leave floating - internal pull-down) for RMS current on CFA; tie to VDD for RMS voltage on CFA. VIH ≥ 0.8·VDD, VIL ≤ 0.8 V.

Key specifications

Parameter Value
Manufacturer TM Shenzhen Titan Micro Elec
Package SOP-8
Category Data Acquisition
Pins 8

CAD (KiCad official)

  • Symbol: TM7780
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: TM Shenzhen Titan Micro Elec datasheet (5 pp, sha256 9ab222968c46653d, retrieved 2026-08-17, 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: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF