参数资料
型号: AOZ1977AI
厂商: Alpha & Omega Semiconductor Inc
文件页数: 9/16页
文件大小: 0K
描述: IC LED DRVR BCKLGT 16SOIC
标准包装: 3,000
系列: EZBoost™
拓扑: PWM,升压(升压)
输出数: 1
内部驱动器:
类型 - 主要: 背光
类型 - 次要: 高亮度 LED(HBLED)
频率: 50kHz ~ 300kHz
电源电压: 8 V ~ 30 V
输出电压: 16V
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-SOIC
包装: 带卷 (TR)
工作温度: -40°C ~ 85°C
AOZ1977
Additional Waveforms
Non-latching LED Short Protection,
Pin 6 AUTO Connected to 1nF
LED Voltage
(20V/div)
Inductor
Current
(0.5A/div)
Feedback
Voltage
(0.5V/div)
200μs/div
LED Short and Recovery
Inductor
Current
(0.5A/div)
LED Voltage
(20V/div)
500ms/div
Efficiency vs. V IN @ OUT = 195V
(LED Current = 200mA, Boost Frequency = 100kHz)
98.5
98.0
97.5
Latching LED Short Protection,
Pin 6 AUTO Connected to GND
200μs/div
Non-latching OVP Protection
500μs/div
DBRT Control Linearity
(PVIN = 130V, VOUT = 195V)
220
200
180
160
140
LED Voltage
(20V/div)
Inductor
Current
(0.5A/div)
Feedback
Voltage
(0.5V/div)
LED Voltage
(20V/div)
Inductor
Current
(0.5A/div)
120
97.0
100
96.5
80
60
96.0
40
20
DBRT = 100Hz
DBRT = 2kHz
95.0
90
100
110
120
130
140
150
0
0
20
40
60
80
100
V IN (v)
DBRT Duty Cycle (%)
Rev. 2.1 May 2012
www.aosmd.com
Page 9 of 16
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