参数资料
型号: ISL78100ARZ-TK
厂商: Intersil
文件页数: 7/19页
文件大小: 0K
描述: IC LED DRIVER AUTOMOTIVE 20-QFN
标准包装: 1,000
拓扑: PWM,降压(降压),升压(升压),切换式电容器(充电泵)
输出数: 1
内部驱动器:
类型 - 主要: 车载,背光
频率: 800kHz ~ 1.2MHz
电源电压: 2.7 V ~ 16 V
输出电压: 32V
安装类型: 表面贴装
封装/外壳: 20-VFQFN 裸露焊盘
供应商设备封装: 20-QFN(4x4)
包装: 带卷 (TR)
工作温度: -40°C ~ 105°C
ISL78100
Typical Performance Curves (Continued)
8 LEDs
V IN = 16V
PWM = 100Hz
LX
8 LEDs
V IN = 16V
LX
IL
PWM = 10kHz
IL
FIGURE 19. 50% PWM DIMMING AT 100Hz
8 LEDs
V IN = 12V
VOUT
(AC
COUPLED)
FB
LX
FIGURE 20. 50% PWM DIMMING AT 10kHz
VOUT
(AC
COUPLED)
FB
LX
PWM = 1kHz
IL
VOUT
(AC
COUPLED)
IL
VOUT
(AC
COUPLED)
FB
8 LEDs V IN = 16V
DUTY CYCLE = 50%
PWM = 1kHz
FB
FIGURE 21. 10% PWM DIMMING AT 1kHz
LX
FIGURE 22. 50% PWM DIMMING AT 1kHz ZOOM-IN
LX
8 LEDs V O
TRANSIENT RESPONSE WHEN LOAD DYNAMICALLY
CHANGES FROM 8 LEDs TO 7 LEDs
V IN = 12V
I LED = 350mA
TRANSIENT RESPONSE WHEN LOAD DYNAMICALLY
CHANGES FROM 7LEDs TO 8LEDs
V IN = 12V
I LED = 350mA
8 LEDs V O
VOUT
(WITH 25.6V
OFFSET)
7 LEDs V O
FIGURE 23. TRANSIENT RESPONSE OPERATES FROM
8 TO 7 LEDs
7
VOUT
(WITH 25.6V
OFFSET)
7 LEDs V O
FIGURE 24. TRANSIENT RESPONSE OPERATES FROM
7 TO 8 LEDs
FN6626.1
December 24, 2013
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