ADP5501 Analog Devices, ADP5501 Datasheet - Page 25

• Manufacturer Part Number: ADP5501
• Description: Programmable Current Backlight Driver with Ambient Light Sensor Input
• Manufacturer: Analog Devices

Specifications of ADP5501

• Vin Range: 2.7 to 5.5V
• Vout (v): 24 to 27
• Synchronous: No
• Package: 24-Lead LFCSP
• Led Configuration: Serial
• Topology: Inductive
• I2c Support: Yes
• Max Iout (ma): 30mA
• Brightness Control: I2C
• Switching Frequency: 1MHz
• Over Volt Protection (v): 24V

Table 26. Register 0x13, LED Fade-In and Fade-Out Timers (LED_FADE)
Bit
7 to 4
3 to 0
Table 27. Register 0x14, LED0 Sink Current (LED0_CURRENT)
Bit
7 to 6
5 to 0
Table 28. Register 0x15, LED1 Sink Current (LED1_CURRENT)
Bit
7 to 6
5 to 0
Table 29. Register 0x16, LED2 Sink Current (LED2_CURRENT)
Bit
7 to 6
5 to 0
Name
LED_FO
LED _FI
Name
Not used
LED0_CURRENT
Name
Not used
LED1_CURRENT
Name
Not used
LED2_CURRENT
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
LED fade-out timer; the timer should be set before LEDx_EN is enabled.
0000 = the timer is disabled.
0001 = 0.3 sec.
0010 = 0.6 sec.
0011 = 0.9 sec.
0100 = 1.2 sec.
0101 = 1.5 sec.
0110 = 1.8 sec.
0111 = 2.1 sec.
1000 = 2.4 sec.
1001 = 2.7 sec.
1010 = 3.0 sec.
1011 = 3.5 sec.
1100 = 4.0 sec.
1101 = 4.5 sec.
1110 = 5.0 sec.
1111 = 5.5 sec.
LED fade-in timer; the timer should be set before LEDx_EN is enabled.
0000 = the timer is disabled.
0001 = 0.3 sec.
0010 = 0.6 sec.
0011 = 0.9 sec.
0100 = 1.2 sec.
0101 = 1.5 sec.
0110 = 1.8 sec.
0111 = 2.1 sec.
1000 = 2.4 sec.
1001 = 2.7 sec.
1010 = 3.0 sec.
1011 = 3.5 sec.
1100 = 4.0 sec.
1101 = 4.5 sec.
1110 = 5.0 sec.
1111 = 5.5 sec.
Description
Sink current setting for LED0.
See Figure 33 for LED sink current vs. code relationship.
Description
Sink current setting for LED1.
See Figure 33 for LED sink current vs. code relationship.
Description
Sink current setting for LED2.
See Figure 33 for the LED sink current vs. code relationship.
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ADP5501