参数资料
型号: MAX6948BGWA+T
厂商: Maxim Integrated
文件页数: 7/28页
文件大小: 0K
描述: IC LED DVR PWM GPIO 25WLP
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: 开路漏极,PWM,升压(升压)
输出数: 6
内部驱动器:
类型 - 主要: 背光
类型 - 次要: 白色 LED
频率: 2MHz
电源电压: 2.7 V ~ 5 V
输出电压: 28V
安装类型: 表面贴装
封装/外壳: 25-WFBGA,WLCSP
供应商设备封装: 25-WLP(2.09x2.09)
包装: 带卷 (TR)
工作温度: -40°C ~ 105°C
MAX6948B
High-Efficiency PWM LED Driver with Boost
Converter and Five Constant-Current GPIO Ports
Typical Operating Characteristics (continued)
(V+ = 3.3V, V DD = 2.5V, T A = +25 N C, unless otherwise noted.)
6.0
SUPPLY CURRENT vs. V+
(BOOST ON, 10% PWM,
FULL CURRENT AND HALF CURRENT)
6.5
SUPPLY CURRENT vs. V+
(BOOST ON, 50% PWM,
FULL CURRENT AND HALF CURRENT)
7.2
SUPPLY CURRENT vs. V+
(BOOST ON, 10% PWM,
FULL CURRENT AND HALF CURRENT)
5.9
5.8
T A = -40 N C, +25 N C, +85 N C, +105 N C
6.4
6.3
6.2
T A = -40 N C, +25 N C, +85 N C, +105 N C
7.1
7.0
6.9
6.8
T A = -40 N C, +25 N C, +85 N C, +105 N C
5.7
5.6
5.5
5.4
6.1
6.0
5.9
5.8
5.7
6.7
6.6
6.5
6.4
6.3
6.2
2.70
3.16
3.62
4.08
4.54
5.00
2.70
3.16
3.62
4.08
4.54
5.00
2.70
3.16
3.62
4.08
4.54
5.00
V+ (V)
DELTA SUPPLY CURRENT P0 vs. V+
(DIFFERENCE IN CURRENT FROM
PORT OFF TO ON)
V+ (V)
DELTA SUPPLY CURRENT P2 vs. V+
(DIFFERENCE IN CURRENT
FROM PORT OFF TO ON)
V+ (V)
OUTPUT SINKING CURRENT
vs. V PORT
5.70
5.65
5.60
-40 N C
5.70
5.65
5.60
-40 N C
40
30
FULL-CURRENT PO
V+ = 5V
5.55
5.55
5.50
5.50
20
HALF-CURRENT PO
5.45
5.40
+25 N C, +85 N C, +105 N C
5.45
5.40
+25 N C, +85 N C, +105 N C
10
FULL-CURRENT P2
HALF-CURRENT P2
5.35
5.35
5.30
2.70
3.16
3.62
4.08
4.54
5.00
5.30
2.70
3.16
3.62
4.08
4.54
5.00
0
0
1
2
3
4
5
V+ (V)
OUTPUT SINKING CURRENT
vs. V PORT
V+ (V)
V PORT (V)
STAGGER PWM PORT WAVEFORMS
vs. TIME ALL (50% PWM)
40
V+ = 5V
P0
MAX6948B toc17
FULL-CURRENT PO
30
P2
P3
20
10
0
HALF-CURRENT PO
FULL-CURRENT P2
HALF-CURRENT P2
P1
P4
BOOST
0
0.2
0.4
0.6
0.8
1.0
1ms/div
V PORT (V)
Maxim Integrated
7
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