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参数资料
| 型号： | ADP5501ACPZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 12/28页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WHITE BCKLGT 24LFCSP |
| 标准包装： | 1 |
| 拓扑： | 升压（升压） |
| 输出数： | 4 |
| 内部驱动器： | 无 |
| 类型 - 主要： | 背光，LED 闪烁器 |
| 类型 - 次要： | RGB，白色 LED |
| 频率： | 400kHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 24-LFCSP-VQ（4x4） |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | ADP5501ACPZ-RLDKR |
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ADP5501
The BL_FI timer in Register 0x04 can be used for smooth fade-
in transitions from low to high backlight settings such as off to
BACKLIGHT
CURRENT
FADE-IN
FADE-OUT
MAX-TO-DIM
FADE-OUT
FADE-IN
dim, off to maximum, and dim to maximum. The BL_FI timer
can be programmed to one of 15 settings ranging from 0.3 sec
MAX
OFF-TO-MAX
FADE-IN
FADE-OUT
to 5.5 sec. The BL_FI timer should be programmed before
asserting BL_EN.
30.0
27.5
25.0
DIM
FADE-OUT
DIM-TO-OFF
22.5
0.3 SEC
20.0
17.5
0.6 SEC
0.9 SEC
1.2 SEC
BL_EN = 1 DIM_EN = 1 BL_EN = 0
BL_EN = 0
BL_EN = 0
15.0
1.5 SEC
1.8 SEC
BL_EN = 1
BL_EN = 1
12.5
10.0
7.5
5.0
2.5
2.1 SEC
2.4 SEC
2.7 SEC
3.0 SEC
3.5 SEC
4.0 SEC
4.5 SEC
5.0 SEC
5.5 SEC
Figure 24. Backlight Turn-On/Turn-Off/Dim with Fade Timers
Figure 24 shows the fade timers in use. With BL_FI and BL_FO
programmed, if BL_EN is asserted, the backlight fades in to its
maximum setting. If DIM_EN is asserted, the backlight fades
out to its dim setting. If BL_EN is cleared, the backlight fades
0
0
0.5
1.0
1.5
2.0 2.5 3.0 3.5
4.0
4.5
5.0
5.5
out to off.
DIM TIMER
FADE-IN TIME (Sec)
Figure 22. Linear Fade-In Times
The time programmed in BL_FI represents the time it takes the
backlight current to go from 0 mA to 30 mA. Fading between
intermediate settings is shorter.
The BL_FO timer in Register 0x04 can be used for smooth fade-
out transitions from high to low backlight settings such as
maximum to dim and dim to off. The BL_FO timer can be
programmed to one of 15 settings ranging from 0.3 sec to 5.5 sec.
During any point in a fade-out, if BL_EN is asserted, the
backlight stops at its current fade-out position and begins
fading in.
The fade-in and fade-out timers can be used independently of
each other; that is, fade-in can be enabled while fade-out is dis-
abled. The fade timers can also be used with the off and dim timers.
Figure 25 shows the fade timers used with the dim and off timers.
BACKLIGHT
CURRENT
The BL_FO timer should be programmed before asserting BL_EN.
30.0
0.3 SEC
27.5
0.6 SEC
0.9 SEC
25.0
1.2 SEC
MAX
FADE-IN
RUNNING
FADE-OUT
22.5
20.0
17.5
1.5 SEC
1.8 SEC
2.1 SEC
2.4 SEC
2.7 SEC
DIM
OFF TIMER
RUNNING
FADE-OUT
15.0
12.5
3.0 SEC
3.5 SEC
4.0 SEC
10.0
7.5
5.0
4.5 SEC
5.0 SEC
5.5 SEC
BL_EN = 1 DIM_EN = 1
SET BY USER
SET BY INTERNAL STATE MACHINE
BL_EN = 0
DIM_EN = 0
2.5
Figure 25. Fade/Dim/Off Timers Used Together
0
0
0.5
1.0
1.5
2.0 2.5 3.0 3.5 4.0
4.5
5.0
5.5
FADE-OUT TIME (Sec)
Figure 23. Linear Fade-Out Times
The time programmed in BL_FO represents the time it takes
the backlight current to go from 30 mA to 0 mA. Fading
between intermediate settings is shorter.
Rev. 0 | Page 12 of 28
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| ADP5501-EVALZ | 制造商:Analog Devices 功能描述:SINGLE CHANNEL BOOST CONVERTER - Boxed Product (Development Kits) |
| ADP5520 | 制造商:AD 制造商全称:Analog Devices 功能描述:Backlight Driver with I/O Expander |
| ADP5520ACPZ-R7 | 功能描述:IC LED DRVR WHITE BCKLGT 24LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:6,000 系列:- 恒定电流:- 恒定电压:- 拓扑:开路漏极，PWM 输出数:4 内部驱动器:是 类型 - 主要:LED 闪烁器 类型 - 次要:- 频率:400kHz 电源电压:2.3 V ~ 5.5 V 输出电压:- 安装类型:表面贴装 封装/外壳:8-VFDFN 裸露焊盘 供应商设备封装:8-HVSON 包装:带卷 (TR) 工作温度:-40°C ~ 85°C 其它名称:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND |
| ADP5520ACPZ-RL | 功能描述:IC LED DRVR WHITE BCKLGT 24LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:6,000 系列:- 恒定电流:- 恒定电压:- 拓扑:开路漏极，PWM 输出数:4 内部驱动器:是 类型 - 主要:LED 闪烁器 类型 - 次要:- 频率:400kHz 电源电压:2.3 V ~ 5.5 V 输出电压:- 安装类型:表面贴装 封装/外壳:8-VFDFN 裸露焊盘 供应商设备封装:8-HVSON 包装:带卷 (TR) 工作温度:-40°C ~ 85°C 其它名称:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND |
| ADP5520ACPZ-RL1 | 制造商:AD 制造商全称:Analog Devices 功能描述:Backlight Driver with I/O Expander |
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