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The SC71701Q/SC71702Q series of low voltage drop regulators with current detection function newly launched by Nanxin Technology are specifically designed for automotive power supply systems and can be fully applied in intelligent cockpit systems such as active antennas, camera modules and sensors, and microphones.

New Product Introduction

SC71701Q/SC71702Q is a single channel/dual channel antenna low-voltage regulator with current detection function for vehicles. It supports a wide input voltage range of 4.5V to 36V and can output voltages from 1.5V to 22V.

SC71701Q/SC71702Q conducts comprehensive fault diagnosis through current detection and error indication pins. The current detection pin CSX supports multiplexing, which can accurately sample the output current size and comprehensively diagnose different faults. The current limit of a single channel can be adjusted by the peripheral resistance on the ILIMX pin, and the maximum current output of a single channel is 400mA.

SC71701Q/SC71702Q supports timely protection and diagnosis of various faults such as output overcurrent, output short circuit to ground, output short circuit to battery, reverse current, overheating, etc., ensuring equipment safety. At the same time, the high precision of small current output sampling in this scheme (± 10% @ 5mA, ± 50% @ 1mA) can ensure accurate sampling under small current output.

In addition, the SC71701Q/SC71702Q series also offers a fault self recovery version for selection, which can be output again without the need to re enable the chip after the fault is removed.

VIN=14V, VOUT1=8.5V, VOUT2=5V Short to battery Protection (AutoRetry Version)

VIN=14V, VOUT1=8.5V, VOUT2=5V Short to battery Protection (Latch Version)

VIN=14V, VOUT1=8.5V, VOUT2=5V Current Sense function multiplexing

Product features

Compliant with AEC-Q100 automotive application standards:

• Temperature level 1: TA range: -40 ° C to 125 ° C

Wide input voltage range from 4.5V to 36V, with 40V load drop capability

Excellent output performance

• Adjustable output voltage range from 1.5V to 22V

• ? Each channel has a current capacity of up to 400mA

Single channel and dual channel LDO adopt the same packaging

Adjustable output current limit size

High current detection accuracy, capable of detecting extremely light load conditions: ± 10% at 5mA load and ± 50% at 1mA load

High Power Rejection Ratio (PSRR): Typical value of 70dB at 100Hz

The voltage drop at a load of 100mA is 500mV (maximum value)

Power switch mode when FB is short circuited to GND

Comprehensive diagnostic and integrated protection functions

• Input undervoltage lockout (UVLO)

• Battery reverse polarity protection

• Reverse current protection (RCP)

• Output battery short circuit (STB) protection

• ? Output inductive load clamping

• Output Short Circuit Protection (SCP)

• ? Thermal shutdown (TSD)

? HTSSOP-16 packaging

The launch of the SC71701Q/SC71702Q series LDO is another expansion of Nanxin's layout in the automotive electronics field. At present, the automotive product line plan of Nanxin Technology has covered many scenarios such as high edge drive, efuse, axle drive, DC-DC, LDO, PMIC, etc. Multiple products have been highly recognized by domestic and foreign vehicle manufacturers and have gradually been mass-produced. In the automotive electronics market, Nanxin will further increase research and development investment, continue product innovation, build an independent core technology matrix, establish a complete product development, quality management, and production capacity guarantee system, and bring more vitality to the automotive industry and domestic semiconductor industry. Welcome to inquire.