参数资料
型号: MAX8879ETG+T
厂商: Maxim Integrated
文件页数: 4/16页
文件大小: 0K
描述: IC LED DRVR WT/RGB BCKLGT 24TQFN
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: 切换式电容器(充电泵)
输出数: 11
内部驱动器:
类型 - 主要: 背光
类型 - 次要: RGB,白色 LED
频率: 1MHz
电源电压: 2.7 V ~ 5.5 V
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
Charge Pump for Backlight/Flash/RGB LEDs
with Safety Timer
Typical Operating Characteristics
(T A = +25°C, unless otherwise noted.)
EFFICIENCY vs. SUPPLY VOLTAGE
DRIVING 4 MAIN LEDs
INPUT CURRENT vs. SUPPLY VOLTAGE
DRIVING LUMILEDS LXCL-PWF1 FLASH
INPUT CURRENT vs. SUPPLY VOLTAGE
DRIVING 4 MAIN LEDs AND RGB LEDs
100
90
900
800
450
400
SUPPLY VOLTAGE FALLING
80
70
700
600
400mA
350
300
30mA/LED
60
50
40
30
20
1.9mA/LED
30mA/LED
15mA/LED
500
400
300
200
200mA
100mA
250
200
150
100
15mA/LED
1.9mA/LED
10
0
SUPPLY VOLTAGE FALLING
100
0
50
0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
SUPPLY VOLTAGE (V)
INPUT CURRENT vs. SUPPLY VOLTAGE
DRIVING 4 MAIN LEDs
SUPPLY VOLTAGE (V)
INPUT CURRENT vs. SUPPLY VOLTAGE
DRIVING RGB LEDs
SUPPLY VOLTAGE (V)
LED CURRENT MATCHING
vs. SUPPLY VOLTAGE
(MAIN AND RGB AT FULL CURRENT)
450
400
SUPPLY VOLTAGE FALLING
450
400
SUPPLY VOLTAGE FALLING
31.2
30.9
RED
350
300
250
200
30mA/LED
350
300
250
200
30mA/LED
30.6
30.3
30.0
4 WHITE
V F = 3.4V
V F = 1.9V
150
100
50
15mA/LED
1.9mA/LED
150
100
50
15mA/LED
1.9mA/LED
29.7
29.4
29.1
GREEN
V F = 2V
BLUE
V F = 4.2V
0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
28.8
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
SUPPLY VOLTAGE (V)
LED CURRENT MATCHING
vs. SUPPLY VOLTAGE
(MAIN AND RGB AT 1.9mA/LED)
1.96
SUPPLY VOLTAGE (V)
30
SUPPLY VOLTAGE (V)
LED CURRENT vs. TEMPERATURE
THERMAL DERATING OFF
1.94
RED
25
1.92
4 WHITE
V F = 1.7V
1.90
1.88
V F = 2.9V
20
15
4 MAIN OR 4 FLASH LEDs
1.86
1.84
1.82
GREEN
V F = 1.9V
BLUE
V F = 3.4V
10
5
THERMAL DERATING ON
1.80
0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
-40
-15
10
35
60
85
SUPPLY VOLTAGE (V)
TEMPERATURE ( ° C)
4
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