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LINEAR TECHNOLOGY  LT3598EUF#PBF  发光二极管驱动器, 6输出, 升压(逐步上升), 3.2V-30V输入, 2.5MHz开关, 44V/30mA输出, QFN-24

LINEAR TECHNOLOGY LT3598EUF#PBF
Technical Data Sheet (402.04KB) EN 查看所有技术文档

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产品概述

The LT3598EUF#PBF is a fixed frequency step-up DC/DC Converter designed to drive up to six strings of LEDs at an output voltage up to 44V. LED dimming can be achieved with analogue dimming on the CTRL pin and with pulse width modulation dimming on the PWM pin. The LT3598 accurately regulates LED current even when the input voltage is higher than the LED output voltage. The switching frequency is programmable from 200kHz to 2.5MHz through an external resistor. Additional features include programmable over-voltage protection, switching frequency synchronization to an external clock, LED current derating based on junction temperature and LED temperature, LED string disable control, OPENLED alert pin and output voltage limiting when all LED strings are disconnected.
  • ±1.5% Accurate LED current matching
  • Regulates current even when VIN > VOUT
  • Disconnects LEDs in shutdown
  • Programmable open LED protection (regulated)
  • OPENLED alert pin
  • Programmable LED current derating
  • Synchronizable to an external clock
  • Parallel channels for higher current per LED string
  • Drives six strings of LEDs at up to 30mA

产品信息

设备拓扑:
升压 (升压)
输出数:
6输出
输出电流:
30mA
输出电压:
44V
驱动器封装类型:
QFN
针脚数:
24引脚
输入电压最小值:
3.2V
输入电压最大值:
30V
开关频率:
2.5MHz
工作温度最小值:
-40°C
工作温度最高值:
125°C
封装:
每个
产品范围:
-
汽车质量标准:
-
MSL:
MSL 1 -无限制
SVHC(高度关注物质):
No SVHC (17-Dec-2015)

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应用

  • 传感与仪器;
  • 消费电子产品;
  • 计算机和计算机周边;
  • 车用

法律与环境

潮湿敏感级别:
MSL 1 -无限制
原产地:
Malaysia

进行最后一道重要生产流程所在的国家

RoHS 合规:
税则号:
85423190
重量(千克):
.000085

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