Check out this total solution for single channel isolated current sense created for automotive applications including high voltage DC/DC power supplies and 3-phase BLDC motor solutions. TI’s solution includes off-the-shelf isolated power eliminating the need for custom magnetics. The Isolated Current Sense Solution enables a small form factor and includes a reference design, development kit, tools and support for faster time-to-market.
The AMC1200-Q1 is a precision isolation amplifier with an output separated from the input circuitry by a silicon dioxide (SiO2) barrier that is highly resistant to magnetic interference. This barrier has been certified to provide galvanic isolation of up to 4000 VPEAK according to UL1577 and IEC60747-5-2. Used in conjunction with isolated power supplies, this device prevents noise currents on a high common-mode voltage line from entering the local ground and interfering with or damaging sensitive circuitry.
The input of the AMC1200-Q1 is optimized for direct connection to shunt resistors or other low-voltage-level signal sources. The excellent performance of the device supports accurate current control, resulting in system-level power saving and, especially in motor-control applications, lower torque ripple. The common-mode voltage of the output signal is automatically adjusted to either the 3-V or 5-V low-side supply.
The AMC1200-Q1 is fully specified over the extended industrial temperature range of –40°C to 105 °C and is available in the SMD-type, gullwing-8 package.
|Isolation Mode Rejection 60Hz (Typ) (dB)|
|Isolation Voltage Cont Peak (DC) (V)|
|Isolation Voltage Pulse/Test Peak (V)|
|Small Signal Bandwidth (Typ) (kHz)|
|Gain Non-Linearity (+/-) (Max) (%)|
|CMTI (Min) (kV/µs)|
|Operating Temperature Range (C)|
|Approx. Price (US$)|
|Catalog||AMC1200||TI's standard catalog product|