参数资料
型号: MAX1576ETG+T
厂商: Maxim Integrated
文件页数: 5/14页
文件大小: 0K
描述: IC LED DRVR WHITE BCKLGT 24-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
恒定电流:
拓扑: 线性(LDO),PWM,切换式电容器(充电泵)
输出数: 8
内部驱动器:
类型 - 主要: 背光,闪灯/白光
类型 - 次要: 白色 LED
频率: 1MHz
电源电压: 2.7 V ~ 5.5 V
输出电压: 5V
安装类型: 表面贴装
封装/外壳: 24-WFQFN 裸露焊盘
供应商设备封装: 24-TQFN-EP(4x4)
包装: 带卷 (TR)
工作温度: -40°C ~ 85°C
480mA White LED 1x/1.5x/2x Charge Pump for
Backlighting and Camera Flash
Typical Operating Characteristics (continued)
(V IN = 3.6V, EN_ = IN, Circuit of Figure 1, R SETM = 9.09k Ω , R SETF = 4.12k Ω , T A = +25°C, unless otherwise noted.)
100
10
1
LED CURRENT vs. R SETM
100% BRIGHTNESS SETTING
100
10
1
LED CURRENT vs. R SETF
100% BRIGHTNESS SETTING
1
10
100
1
10
100
R SETM (k Ω )
OPERATING WAVEFORMS (1x MODE)
MAX1576 toc12
R SETF (k Ω )
OPERATING WAVEFORMS (1.5x MODE)
MAX1576 toc13
V OUT
V IN
V OUT
4 MAIN LEDs AT 20mA EACH
400ns/div
OPERATING WAVEFORMS (2x MODE)
MAX1576 toc14
50mV/div
AC-COUPLED
20mV/div
AC-COUPLED
V OUT
50mV/div
V OUT
V IN
V EN1F
V EN2F
4 MAIN LEDs AT 20mA EACH
400ns/div
FLASH RESPONSE
MAX1576 toc15
V OUT
50mV/div
AC-COUPLED
V IN
20mV/div
AC-COUPLED
5V/div
AC-COUPLED
V IN
V IN
20mV/div
AC-COUPLED
I IN
500mA/div
500mA/div
I OUT
4 MAIN LEDs AT 20mA EACH
FLASH AT 400mA
500mV/div
AC-COUPLED
400ns/div
V OUT
400 μ s/div
4 MAIN LEDs AT 20mA EACH. 400mA FLASH
_______________________________________________________________________________________
5
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