参数资料
型号: MAX16819ATT+T
厂商: Maxim Integrated
文件页数: 5/10页
文件大小: 0K
描述: IC LED DRIVER HIGH BRIGHT 6-TDFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
恒定电流:
拓扑: PWM,降压(降压)
输出数: 1
内部驱动器:
类型 - 主要: 车载
类型 - 次要: 高亮度 LED(HBLED)
频率: 2MHz
电源电压: 4.5 V ~ 28 V
安装类型: 表面贴装
封装/外壳: 6-WDFN 裸露焊盘
供应商设备封装: 6-TDFN 裸露焊盘(3x3)
包装: 标准包装
工作温度: -40°C ~ 125°C
产品目录页面: 1425 (CN2011-ZH PDF)
其它名称: MAX16819ATT+TDKR
2MHz High-Brightness LED Drivers with
High-Side Current Sense and 5000:1 Dimming
Typical Operating Characteristics (continued)
(V IN = V DIM = 12V, C VCC = 1μF, R SENSE = 0.5 ? connected between IN and CSN. Typical values at T A = +25°C, unless otherwise
noted.)
PWM DIMMING AT 200Hz
PWM DIMMING EXPANDED
PWM DIMMING EXPANDED
(1% DUTY CYCLE)
MAX16819 toc09
(50% DUTY CYCLE)
MAX16819 toc10
(50% DUTY CYCLE)
MAX16819 toc11
V IN = 12V, L = 47 μ H,
1 LED MAX16819
10 μ s/div
PWM DIMMING AT 20kHz
(10% DUTY CYCLE)
V DIM
2V/div
0V
I LED
200mA/div
0A
V IN = 24V, L = 33 μ H,
4 LEDS MAX16820
1 μ s/div
PWM DIMMING AT 20kHz
(90% DUTY CYCLE)
V DIM
2V/div
0V
I LED
200mA/div
0A
V IN = 12V, L = 47 μ H,
1 LED MAX16819
4 μ s/div
I LED VARIATION vs. TEMPERATURE
V DIM
2V/div
0V
I LED
200mA/div
0A
MAX16819 toc12
V IN = 24V, L = 47 μ H,
4 LEDS MAX16820
V DIM
2V/div
0V
I LED
200mA/div
0A
MAX16819 toc13
V IN = 24V, L = 33 μ H,
4 LEDS MAX16820
V DIM
2V/div
0V
I LED
200mA/div
0A
2.0
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
I LED(NOMINAL) = 400mA
L = 47 μ H
V IN = 24V
V IN = 12V
V DIM = 0V
-2.0
10 μ s/div
10 μ s/div
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE ( ° C)
_______________________________________________________________________________________
5
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