In recent years, with the explosive rise of the electric vehicle industry, automotive intelligent cockpit, intelligent driving, and intelligent networking have become widely recognized future development trends. However, due to its strict requirements of high security, high reliability, and high stability, the difficulty and cycle of research and development of automotive-grade chips are much higher than those of consumer and industrial chips.
Since 2020, Nanxin has further expanded its product line, focusing on the layout of the automotive machine field, and has successively launched several automotive-grade chips, covering multiple scenarios such as on-board host instruments, driving assistance systems, charging, lighting, and body control.
Recently, Nanxin Technology has launched a blockbuster new product:Support BC12 The automotive USB charging chip SC81530Q in CDP mode and USB Type-C DFP mode has passed AEC-Q100 automotive certification.
The maximum working voltage of the solution supports 36V, integrates synchronous buck converter and current limiting switch, the peak efficiency can be as high as 94%, supports A-port and C-port charging, and supports BC12 CDP and USB Type-C DFP charging protocols can be applied to automotive cockpits, central control screens, on-board wired charging and other fields.
The SC81530Q is a USB charging IC with integrated synchronous buck regulator and USB current limit switch that supports BC12 CDP and TypeC DFP charging protocols, support A port and C port charging, integrated DPDM data switch with greater than 1GHz bandwidth, and available in a 22 pin 4mm x 4mm wettable flank QFN package.
SC81530Q hasAll-round protection: Provide output over-voltage protection, inductor cycle-by-cycle current limiting protection, output short-circuit protection, output over-current protection and thermal shutdown protection, which can cut off the output in time when the circuit is abnormal to protect the safety of charging.
The SC81530Q can pass the 8kV IEC 61000-4-2 contact discharge test and the 15kV IEC 61000-4-2 air discharge testShort battery protection with USB Out DM DP CC pin.
sc81530qThe overall peak efficiency is as high as 941%, the temperature rise at full load is only 26。High efficiency and low heat generation can ensure stable operation in high-temperature environments, and can also reduce the pressure on heat dissipation design.
400kHz, 5V output efficiency curve.
400khz，13.Temperature rise of 5V-5V3A.
The SC81530Q has an integrated high-bandwidth DP DM data switch for excellent eye diagram performance.
Eye diagram vin = 12 v, f (sw) = 400 kHz
The SC81530Q offers spread spectrum capability to pass the most stringent CISPR25 Class 5 tests without common mode inductance.
Current method Class5 standard EMC test 50mm input 12V, output 5V3A
Current method Class5 standard EMC test 50mm input 12V, output 9V2A
Voltage method Class 5 standard EMC test positive input 12V, output 5V3A
Voltage method Class 5 standard EMC test positive input 12V, output 9V2A
Support is also included in the SC8153X seriesapple2.4a/dcp/qc3.SC81531Q with 0 charging protocol, support Apple2SC81532Q with 4A DCP charging protocolandDCDC operates in FPWM mode for the SC81530AQ SC81531AQ SC81532AQ series.
For specific products, please refer to the official website of Nanxin.
The SC81530Q is AEC-Q100 qualified for automotive applications
Temperature class 1: TA range: -40°C to 125°C
Passed the Apple MFI certification test.
Certified by USB-if Type-C.
Integrated synchronous buck converter:
3.8V to 36V continuous operating input range, 40V absolute withstand voltage.
Switching frequencies from 200kHz to 22MHz adjustable.
Spread spectrum function. External clock synchronization function.
Integration 525mω/30.5M switching power FETs
PFM and FPWM modes can be selected.
Integrate multiple protocols:
Support BC12 CDP mode.
Support USB Type-C DFP mode.
Integrated USB2 with 1000MHz bandwidth0 data switch.
Precise output current protection for C-mount and A-mount.
USB switch with integrated 23M on-resistance.
Line loss compensation. Output short-circuit protection for buck converters and USB switches.
USB Out, DP DM, CC1 CC2 pins are protected against short circuit to the battery.
Fault Indication Function - Indicates OCP, OVP (USB IN), OTP, USB OUT DP DM CC1 CC2 to short circuit the battery.
The USB Out CC1 CC2 DP DM pin can be discharged by 8kV IEC 61000-4-2 contact and 15kV IEC 61000-4-2 air discharge.
The SC81530Q is a USB charging IC with integrated synchronous buck regulator and USB current limit switch that supports BC12 CDP and TypeC DFP mode charging protocols, support A port and C port charging, has passed the automotive grade AEC-Q100 certification, passed the Apple MFI certification test, passed the USB-if Type-C certification, integrated a variety of protocols, the overall peak efficiency is as high as 941%。SC81530Q can meet the power supply requirements of on-board electronic equipment, and can be widely used in cockpit, on-board wired charging and other fields.