参数资料
型号: MAX6948BGWA+T
厂商: Maxim Integrated
文件页数: 20/28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
Table 11. Port Ramp-Down Register Format (0x11) (continued)
REGISTER DATA
REGISTER DESCRIPTION
D7
D6
D5
D4
D3
D2
D1
D0
RESERVED
HOLD-OFF
RAMP-DOWN
4.164s ramp-down from full current after
ramp-down delay
Zero ramp-down delay before fade-off
0.0655s ramp-down delay before fade-off
0.131s ramp-down delay before fade-off
0.262s ramp-down delay before fade-off
0.524s ramp-down delay before fade-off
1.049s ramp-down delay before fade-off
2.097s ramp-down delay before fade-off
4.164s ramp-down delay before fade-off
Power-up default
X
X
X
X
X
X
X
X
X
0
X
X
X
X
X
X
X
X
X
0
X
0
0
0
0
1
1
1
1
0
X
0
0
1
1
0
0
1
1
0
X
0
1
0
1
0
1
0
1
0
1
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
0
X = Don’t care.
Table 12. Port Ramp-Up Register Format (0x12)
REGISTER DATA
REGISTER DESCRIPTION
D7
D6
D5
D4
D3
D2
D1
D0
R ESERVE D
RAMP-UP
Immediately starts up
0.0655s ramp-up to full current
0.131s ramp-up to full current
0.262s ramp-up to full current
0.524s ramp-up to full current
1.049s ramp-up to full current
2.097s ramp-up to full current
4.164s ramp-up to full current
Power-up default
X
X
X
X
X
X
X
X
0
X
X
X
X
X
X
X
X
0
X
X
X
X
X
X
X
X
0
X
X
X
X
X
X
X
X
0
X
X
X
X
X
X
X
X
0
0
0
0
0
1
1
1
1
0
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
X = Don’t care.
20
Maxim Integrated
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