ADP8866 Analog Devices, ADP8866 Datasheet - Page 46

• Manufacturer Part Number: ADP8866
• Description: Charge Pump Driven 9-Channel LED Driver with Automated LED Lighting Effects
• Manufacturer: Analog Devices

Specifications of ADP8866

• Vin Range: 2.5 to 5.5V
• Vout (v): 4.3 to 5.5
• Synchronous: No
• Package: 20-Lead LFCSP
• Led Configuration: Parallel
• Topology: Capacitive
• I2c Support: Yes
• Max Iout (ma): 25mA
• Brightness Control: I2C
• Peak Efficiency (%): 92%
• Switching Frequency: 1MHz

ADP8866
Table 89.
Bit Name
N/A
SC7OFF_HB
1
2
3
Independent Sink 8 Off Timer—Even Heartbeat Pulses (OFFTIMER8_HB)—Register 0x33
Table 90. OFFTIMER8_HB Bit Map
Bit 7
Reserved
Table 91.
Bit Name
N/A
SC8OFF_HB
1
2
3
Independent Sink 9 Off Timer—Even Heartbeat Pulses (OFFTIMER9_HB)—Register 0x34
Table 92. OFFTIMER9_HB Bit Map
Bit 7
Reserved
A disabled setting leaves the LED on. This is useful for setting up a blink sequence that runs once and then stays on.
A disabled setting leaves the LED on. This is useful for setting up a blink sequence that runs once and then stays on.
Setting SCxOFF_HB to 0 seconds is not recommended if the SCFO_HB fade-out time is also set to 0 seconds.
Setting SCxOFF to off causes the LED to be held off indefinitely. This is useful for setting up a blink sequence that runs once and then goes to off.
Setting SCxOFF_HB to 0 seconds is not recommended if the SCFO_HB fade-out time is also set to 0 seconds.
Setting SCxOFF to off causes the LED to be held off indefinitely. This is useful for setting up a blink sequence that runs once and then goes to off.
Bit No.
7
[6:0]
Bit No.
7
[6:0]
Description
Reserved.
SC7 off time for the even numbered pulses when heartbeat mode for this channel is enabled. When the
SC7OFF_HB time is disabled, SC7 goes immediately from the even numbered on time to the odd numbered on
time. When the SC off time is set to any other value, the ISC turns off for the off time (per the following listed
times) and then turns on according to the SCON7_HB setting.
0000 = disabled
0000001 = 0.0 sec
0000010 = 0.1 sec.
0000011 = 0.2 sec.
…
1111110 = 12.5 sec.
1111111 = off
Bit 6
Bit 6
Description
Reserved.
SC8 off time for the even numbered pulses when heartbeat mode for this channel is enabled. When the
SC8OFF_HB time is disabled, SC8 goes immediately from the even numbered on time to the odd numbered on
time. When the SC off time is set to any other value, the ISC turns off for the off time (per the following listed
times) and then turns on according to the SCON8_HB setting.
0000 = disabled
0000001 = 0.0 sec
0000010 = 0.1 sec.
0000011 = 0.2 sec.
…
1111110 = 12.5 sec.
1111111 = off
3
.
3
1
.
.
Bit 5
1
Bit 5
2
.
.
2
.
Bit 4
Bit 4
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Bit 3
Bit 3
SC8OFF_HB
SC9OFF_HB
Bit 2
Bit 2
Bit 1
Bit 1
Bit 0
Bit 0