参数资料
型号: MAX16820ATT+T
厂商: Maxim Integrated
文件页数: 4/10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: MAX16820ATT+TDKR
2MHz High-Brightness LED Drivers with
High-Side Current Sense and 5000:1 Dimming
Typical Operating Characteristics
(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.)
DRV SWITCHING FREQUENCY
EFFICIENCY vs. V IN
vs. V IN
LED CURRENT VARIATION vs. V IN
100
95
90
85
LED 4
LED 5
L = 47 μ H
1500
1400
1300
1200
1100
1000
900
LED 2
LED 3
LED 4
LED 5
2.0
1.5
1.0
0.5
LED 1
I LED(NOMINAL) = 400mA
L = 47 μ H
LED 2
80
75
70
800
700
600
500
400
300
LED 1
0
-0.5
-1.0
65
60
200
100
0
L = 47 μ H
-1.5
-2.0
LED 3
LED 4
LED 5
5
10
15
20
25
30
4
8
12
16
20
24
28
5
10
15
20
25
30
5.5
V IN (V)
V CC vs. V IN
5.40
V IN (V)
V CC vs. TEMPERATURE
300
V IN (V)
SUPPLY CURRENT vs. V IN
5.4
5.3
5.39
5.38
V IN = 24V
250
5.2
5.1
5.0
4.9
4.8
4.7
5.37
5.36
5.35
5.34
5.33
5.32
V IN = 12V
200
150
100
50
4.6
4.5
I LED = 0
5.31
5.30
V DIM = 0V
0
V DIM = 0V
5.0 7.5 10.0 12.5 15.0 17.5 20.0 22.5 25.0 27.5
-40 -25 -10 5 20 35 50 65 80 95 110 125
4.5
8.5
12.5
16.5
20.5
24.5
28.5
V IN (V)
PWM DIMMING AT 200Hz
(10% DUTY CYCLE)
MAX16819 toc07
V IN = 12V, L = 47 μ H,
1 LED MAX16819
1ms/div
V DIM
2V/div
0V
I LED
200mA/div
0A
TEMPERATURE ( ° C)
V IN (V)
PWM DIMMING AT 200Hz
(90% DUTY CYCLE)
MAX16819 toc08
V IN = 12V, L = 47 μ H,
1 LED MAX16819
1ms/div
V DIM
2V/div
0V
I LED
200mA/div
0A
4
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