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| ST 车前灯单元解决方案 |
| 作者： 时间：2008-07-08 来源:eaw |
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Smart Headlamp Unit
Today’s Smart Headlamp Systems require high reliability electronic components to ensure safe and proper operation under all conditions. Most modern systems drive a large variety of lamps (incandescent, HID, Xenon) with advanced diagnostics (bulb outage detection, overload, etc) and drive features (PWM, DC). More advanced systems offer headlamp levelling and bend lighting control. From bridge, high/low side drivers and advanced regulators to low cost, high performance microcontrollers, coupled with an extensive standard product offering, ST has a broad range of solutions to choose from. A sampling of ST products that are applicable to Smart Headlamp Systems can be found in the following block diagram
1 Voltage Regulator
(1) Low-Drop [2]
L4979
L4989
(2) Very Low-Drop [1]
L4925rop [2]
2 BUS Transceiver
L9615
L9616
3 Control Unit
(1) ST7 - 8-bit Microcontrollers [45]
ST72321AR6
ST72321AR7
ST72321AR9
(2) ST7 - 8-bit Microcontrollers [13]
ST72521AR6
ST72521AR9
ST72521M9
(3) ST9 - 8-bit Microcontrollers [8]
ST90R158
ST92141K4
ST92F124R1
4 Memory
(1) Serial EEPROM, I2C Bus, M24 [4]
M24C04-W
M24C16-W
(2) Serial EEPROM, I2C Bus, M24 [14]
M24128-BR
M24128-BW
M24256-BW
(3) Serial EEPROM, SPI Bus, M95 [5]
M95040
M95040-W
M95160
(4) Serial EEPROM, SPI Bus, M95 [11]
M95010-W
M95020-W
M95080
5 Stepper Motor Driver
L9935
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