Shenzhen Meiyuxin Technology Co., Ltd. [supply Automotive Chips] AMC1305L25QDWRQ1 automotive ±250mV input, current detection enhanced isolated modulator with LVDS interface Quality assurance New original! ! !

Product Description:

The AMC1305L25QDWRQ1 device is a precision delta-sigma (ΔΣ) modulator with output isolated from input circuitry by a capacitive double isolation barrier with high magnetic field immunity. The isolation barrier is certified to provide reinforced isolation up to 7000 V peak according to DIN V VDE V 0884-10, UL1577 and CSA standards. When used with an isolated power supply, the device prevents noise currents on common-mode high-voltage lines from entering the local system ground and interfering with or damaging low-voltage circuits.

The AMC1305L25QDWRQ1 is optimized for direct connection to shunt resistors or other low voltage level signal sources, while providing excellent DC and AC performance. Shunt resistors are commonly used to sense current in traction inverters, on-board chargers, or similar automotive applications. By decimate the bit stream using appropriate digital filters (i.e., integrated in the TMS320F2837x), the device achieves 16-bit resolution with 85dB (13.8 ENOB) dynamic range at a data rate of 78kSPS.

AMC1305L25QDWRQ1 On the high side, the modulator is powered from a nominal 5V (AVDD) while the isolated digital interface is powered from a 3.3V or 5V supply (DVDD).

Features:

• Automotive electronics application certification

• Has the following AEC-Q100 qualified results:

– Temperature class 1: -40°C to +125°C

– Human body model (HBM) electrostatic discharge (ESD) classification level

– Charged Component Mode (CDM) ESD classification level C6

• Family pin-compatible with:

– Input Voltage Range of ±50mV or ±250mV

– Complementary Metal Oxide Semiconductor (CMOS) or Low Voltage Differential Signaling (LVDS) Digital Interface Options

• Excellent DC performance:

– Offset Error: ±50 µV or ±150 µV (Max)

– Offset Drift: 1.3 µV/°C (Max)

– Gain error: ±0.3% (maximum)

– Gain Drift: ±40ppm/°C (Maximum)

• Safety related certifications:

– 7000 VPK reinforced isolation per DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12

– 5000 VRMS isolation for 1 minute per UL 1577

– CAN/CSA No. 5A Component Acceptance Service Notice

• Transient immunity: 15kV/µs (min)

• High electromagnetic field immunity

• 5MHz to 20MHz external clock input

Application

• Shunt Based Current Sensing or Resistor Divider Based Voltage Sensing Input:

– Traction inverters

– On-board charger (OBC)

– DC-DC converters

– Battery Management System (BMS)