MAX16929:带有boost转换器和栅极稳压器的汽车应用TFT-LCD 电源

高压TFT-LCD电源,灵活的显示阵列调整满足任何汽车显示器供电需求

The MAX16929 is a highly integrated power supply for automotive TFT-LCD applications. The device integrates one buck converter, one boost converter, one 1.8V/3.3V regulator controller, and two gate voltage regulators. The device comes in several versions to satisfy common automotive power-supply requirements (see the Ordering Information/Selector Guide table in the full data sheet). Designed to operate from a single 4V to 28V supply or 5.5V to 28V supply, the device is ideal for automotive TFT-LCD applications. Both the buck and boost converters use spread-spectrum modulation to reduce peak interference and to optimize EMI performance. The sequencing input (SEQ) allows flexible sequencing of the positive-gate and negative-gate voltage regulators. The power-good indicator (PGOOD) indicates a failure on any of the converters or regulator outputs. Integrated thermal shutdown circuitry protects the device from overheating. The MAX16929 is available in a 28-pin TSSOP package with exposed pad, and operates over the -40°C to +105°C temperature range.

关键特性
  • Operating Voltage Range of 4V to 28V (Buck) or 3V to 5.5V (Boost)
  • Independent 28V Input Buck Converter Powers TFT Bias Supply Circuitry and External Circuitry
  • High-Power (Up to 6W) Boost Output Providing Up to 18V
  • 1.8V or 3.3V Regulator Provides 500mA with External npn Transistor
  • One Positive-Gate Voltage Regulator Capable of Delivering 20mA at 28V
  • One Negative-Gate Voltage Regulator
  • High-Frequency Operation
    • 2.1MHz (Buck Converter)
    • 2.2MHz (Boost Converter)
  • Flexible Stand-Alone Sequencing
  • True Shutdown™ Boost Converter
  • 6μA Low-Current Shutdown Mode (Buck)
  • Internal Soft-Start
  • Overtemperature Shutdown
  • -40°C to +105°C Operation
MAX16929:典型应用电路
MAX16929:典型应用电路
应用
  • 汽车中心显示器
  • 汽车仪表盘
  • 汽车导航系统
数据手册DataSheet
语言下载文件备注
英文MAX16929.pdfRev 2; 01/2012
关键参数
Part NumberPrimary TopologyMonitor/Control FeaturesDC-DC/Power FeaturesVIN
(V)
VIN
(V)
VOUT
(V)
VOUT
(V)
Max. IOUT
(A)
Max. IOUT
(A)
Oper. Freq.
(kHz)
Inverting OutputsPackage/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX16929Step-Up/DownLow Batt./POK Output
  • Avg. Current Mode Control
  • Current Limit
  • Fixed Freq./PWM
  • Internal Switch
  • Soft Start
428-24292220001TSSOP-EP/28$2.29 @1k
开发工具
质量和环境数据
相关产品
  • MAX16927:汽车应用TFT-LCD电源,集成boost、buck、cuk转换器以及VCOM缓冲器、栅极驱动器和SPI接口
  • MAX16928:汽车应用TFT-LCD电源,带有boost转换器和栅极驱动稳压器
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX16929AGUI/V+生产中TSSOP-EP,;28引脚;63.7mm²-40°C至+105°CRoHS/无铅:无铅
MAX16929AGUI/V+T生产中TSSOP-EP,;28引脚;63.7mm²-40°C至+105°CRoHS/无铅:无铅
MAX16929BGUI/V+生产中TSSOP-EP,;28引脚;63.7mm²-40°C至+105°CRoHS/无铅:无铅
MAX16929BGUI/V+T生产中TSSOP-EP,;28引脚;63.7mm²-40°C至+105°CRoHS/无铅:无铅
MAX16929CGUI/V+生产中TSSOP-EP,;28引脚;63.7mm²-40°C至+105°CRoHS/无铅:无铅
MAX16929CGUI/V+T生产中TSSOP-EP,;28引脚;63.7mm²-40°C至+105°CRoHS/无铅:无铅
MAX16929DGUI/V+生产中TSSOP-EP,;28引脚;63.7mm²-40°C至+105°CRoHS/无铅:无铅
MAX16929DGUI/V+T生产中TSSOP-EP,;28引脚;63.7mm²-40°C至+105°CRoHS/无铅:无铅
MAX16929EGUI/V+生产中TSSOP-EP,;28引脚;63.7mm²-40°C至+105°CRoHS/无铅:无铅
MAX16929EGUI/V+T生产中TSSOP-EP,;28引脚;63.7mm²-40°C至+105°CRoHS/无铅:无铅
型号状况推荐替代产品封装:类型 引脚 占位面积封装图 编码/变更 *温度RoHS/无铅?
MAX16929FGUI/V+生产中TSSOP-EP,;28引脚;63.7mm²-40°C至+105°CRoHS/无铅:无铅
MAX16929FGUI/V+T生产中TSSOP-EP,;28引脚;63.7mm²-40°C至+105°CRoHS/无铅:无铅
MAX16929GGUI/V+生产中TSSOP-EP,;28引脚;63.7mm²-40°C至+105°CRoHS/无铅:无铅
MAX16929GGUI/V+T生产中TSSOP-EP,;28引脚;63.7mm²-40°C至+105°CRoHS/无铅:无铅
MAX16929GUI/V+生产中TSSOP-EP,;28引脚;63.7mm²-40°C至+105°CRoHS/无铅:无铅
MAX16929GUI/V+T生产中TSSOP-EP,;28引脚;63.7mm²-40°C至+105°CRoHS/无铅:无铅
MAX16929HGUI/V+生产中TSSOP-EP,;28引脚;63.7mm²-40°C至+105°CRoHS/无铅:无铅
MAX16929HGUI/V+T生产中TSSOP-EP,;28引脚;63.7mm²-40°C至+105°CRoHS/无铅:无铅
MAX16929IGUI/V+生产中TSSOP-EP,;28引脚;63.7mm²-40°C至+105°CRoHS/无铅:无铅
MAX16929IGUI/V+T生产中TSSOP-EP,;28引脚;63.7mm²-40°C至+105°CRoHS/无铅:无铅
MAX16929.pdf MAX16929
MAX16929.pdf MAX16929
MAX16929.pdf MAX16929
MAX16929.pdf MAX16929
典型应用电路 MAX16929