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Maxim产品 - MAX16929介绍

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

MAX16929是Maxim美信半导体公司的一款DC-DC开关调节器产品，MAX16929是带有boost转换器和栅极稳压器的汽车应用TFT-LCD 电源，本站介绍了MAX16929的封装应用图解、特点和优点、功能等，并给出了与MAX16929相关的Maxim元器件型号供参考。

MAX16929 - 带有boost转换器和栅极稳压器的汽车应用TFT-LCD 电源 - DC-DC开关调节器 - 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 - 美信半导体

产品概述

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-spectrummodulation 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
  • 以下关键特性由Maxim美信半导体提供：
  • 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
    • 热门应用
  • 汽车中心显示器
  • 汽车仪表盘
  • 汽车导航系统
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