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参数资料
| 型号： | MAX6947ATE+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 14/24页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER LINEAR 16-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 恒定电流： | 是 |
| 拓扑： | 开路漏极，PWM |
| 输出数： | 10 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | RGB，白色 LED |
| 频率： | 400kHz |
| 电源电压： | 2.25 V ~ 3.6 V |
| 输出电压： | 7V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN（3x3） |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 125°C |
10-Port, Constant-Current LED Driver and
I/O Expander with PWM Intensity Control
The ramp-down register sets the hold-off and fade-off
CURRENT PORT CURRENT = FULL
20mA
17.5mA
15mA
12.5mA
times and allows disabling of hold-off and fade-off (zero
delay), if desired (Table 8). The ramp-up register sets
the ramp-up time and allows disabling of ramp-up (zero
delay), if desired (Table 9). The configuration register
contains three status bits that identify the condition of
the MAX6946/MAX6947, hold-off, fade-off, or ramp-up
(Table 2). The configuration register also enables or dis-
10mA
7.5mA
5mA
2.5mA
PORT CURRENT = HALF
ables ramp-up. One write command to the configuration
register can put the MAX6946/MAX6947 into shutdown
(using hold-off and fade-off settings in the fade register)
and one read command to the configuration register can
determine whether the Reset Run is enabled for restart,
and whether the MAX6946/MAX6947 will use ramp-up
on restart.
0mA
FULL
7/8
6/8
5/8
4/8
3/8
2/8
1/8
ZERO
CURRENT
CURRENT
CURRENT
CURRENT
CURRENT
CURRENT
CURRENT
CURRENT CURRENT
FADE-UP
FADE-OFF
Figure 6. Output Fade DAC (Global Current = 0x07)
Table 8. Ramp-Down Register Format (0X11)
DESCRIPTION
D7
D6
D5
REGISTER BIT
D4 D3
D2
D1
D0
Instant going into shutdown after hold-off delay
1/16s ramp-down from full current before shutdown after hold-off delay
1/8s ramp-down from full current before shutdown after hold-off delay
1/4s ramp-down from full current before shutdown after hold-off delay
1/2s ramp-down from full current before shutdown after hold-off delay
1s ramp-down from full current before shutdown after hold-off delay
2s ramp-down from full current before shutdown after hold-off delay
4s ramp-down from full current before shutdown after hold-off delay
Zero hold-off delay before fade-off going into shutdown
1/16s hold-off delay before fade-off going into shutdown
1/8s hold-off delay before fade-off going into shutdown
1/4s hold-off delay before fade-off going into shutdown
1/2s hold-off delay before fade-off going into shutdown
1s hold-off delay before fade-off going into shutdown
2s hold-off delay before fade-off going into shutdown
4s hold-off delay before fade-off going into shutdown
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
0
0
1
1
1
1
X
X
X
X
X
X
X
X
0
0
1
1
0
0
1
1
X
X
X
X
X
X
X
X
0
1
0
1
0
1
0
1
0
0
0
0
1
1
1
1
X
X
X
X
X
X
X
X
0
0
1
1
0
0
1
1
X
X
X
X
X
X
X
X
0
1
0
1
0
1
0
1
X
X
X
X
X
X
X
X
14
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6947ATE+ | 功能描述:LED照明驱动器 10-Port Constant Current LED Driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MAX6947ATE+T | 功能描述:LED照明驱动器 10-Port Constant Current LED Driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MAX6948BGWA+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX6948BGWA+T | 功能描述:LED照明驱动器 High-Efficiency PWM LED Driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MAX694C/D | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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