Applications

• Motor phase and rail current sensing

• Power inverter current and voltage sensing

General

The TLP7820 of isolation amplifiers is designed for current sensing in electronic motor drives. In a typical

implementation, motor currents flow through an external resistor and the resulting analog voltage drop is sensed

by the TLP7820.

Features

(1) Gain accuracy: ±0.5 (Gain rank B)

(2) Gain drift: 0.00012 V/V/ (typ.)

(3) Nonlinearity (VIN = ±200 mV): 0.02 (typ.)

(4) Input offset voltage: 0.9 mV (typ.)

(5) VOUT bandwidth (-3 dB): 230 kHz (typ.)

(6) Operating temperature range: -40 to 105 

(7) Common-mode transient immunity: 15 kV/μs (min)

(8) Safety standards

UL-recognized: UL 1577, File No.E67349

cUL-recognized: CSA Component Acceptance Service No.5A File No.E67349

VDE-approved: EN 60747-5-5, EN 62368-1 (Note 1)

CQC-approved: GB4943.1, GB8898 Japan Factory