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商品编号:
NEX13120FPC-Q100Y
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简述:
12-channel automotive linear LED driver
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描述:
NEX13120F-Q100 is an AEC-Q100 grade 1 qualified 12-channel, 40 V high-side LED driver with up to 100 mA output current per channel, PWM and analog dimming support, and MTP for configurable depending on application requirements in automotive lighting systems.
NEX13120F-Q100 supports 8-bit output current with high accuracy from channel to channel and device to device, channels can be used in parallel to support higher current output than 100 mA. The low dropout of the device helps eliminate the heat generation of the device itself. The device integrates UART over CAN as the digital interface to enable long distance off-board communication, which is a typical scenario for automotive exterior lighting where different lamp functions are typically located in different PCB boards. NEX13120F-Q100 also supports LED open-circuit, short-to-ground, and single LED short-circuit diagnostics. Additionally, a configurable watchdog automatically sets the part into Fail-Safe states when the CAN bus connection is lost.
NEX13120F-Q100 can operate at a junction temperature range from -40 °C to +150 °C in a thermally enhanced 24-pin HTSSOP24 package.
- 数据手册:
特性
AEC-Q100 qualified for automotive applications
Specified from -40 °C to 125 °C
Compliant with ISO 26262 and meets ASIL B requirements for functional safety
12-channel precision high-side current output:
Vbat: 4.5 V to 36 V and Vs: 3.8 V to 36 V
Up to 100 mA channel current per channel
2-bit global, 6-bit independent current setting
Current accuracy within ±5 % from 18 mA to 100 mA
Low voltage drops: 600 mV at 100 mA
12-bit independent PWM dimming
Programmable PWM frequency: 50 Hz to 23.4 kHz
Linear and exponential dimming method
Integrated UART interface:
Data rate up to 2 Mbit/s
Supports UART data format
Supports 27 slave address set by resistor
Diagnostics and protections:
Programmable FAIL-SAFE state
LED open-circuit detection
LED short-circuit detection
Single-LED short-circuit diagnostic
Programmable low-Vs detection
Open-drain FLT pin for fault indication
Watchdog and CRC for data line
MTP ECC check
8-bit ADC for pin voltage measurement
Over-temperature protection
ESD protection:
HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
CDM: ANSI/ESDA/JEDEC JS-002 class C2a exceeds 500 V
目标应用
Automotive exterior rear lights
Automotive exterior headlights