参数资料
型号: SSL1750T/N1,518
厂商: NXP Semiconductors
文件页数: 15/29页
文件大小: 0K
描述: IC LED DRVR HI PWR AC IN 16-SOIC
标准包装: 2,500
拓扑: 交直流离线开关,反激式,PFC
输出数: 2
内部驱动器:
类型 - 主要: 通用
频率: 100kHz ~ 150kHz
电源电压: 70 V ~ 276 V
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
供应商设备封装: 16-SO
包装: 带卷 (TR)
工作温度: -20°C ~ 150°C
NXP Semiconductors
SSL1750
SMPS control IC for LED drivers
drain
valley
secondary
stroke
primary
stroke
secondary
stroke
secondary
ringing
(2)
(1)
oscillator
014aaa027
(1) Start of new cycle at lowest drain voltage.
(2) Start of new cycle in a classical Pulse Width Modulation (PWM) system without valley detection.
Fig 10. Signals for valley switching
7.3.3 Current mode control (pin FBSENSE)
Current mode control is used for the ?yback converter for its good line regulation.
The primary current is sensed by pin FBSENSE across an external resistor and compared
with an internal control voltage.The internal control voltage is proportional to the voltage
on pin FBCTRL.
SSL1750_1
? NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 01 — 15 September 2008
15 of 29
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