ADP8866 Analog Devices, ADP8866 Datasheet - Page 6

• 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
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Table 4. Pin Function Descriptions
Pin No.
14
3
2
1
20
19
18
17
16
4
13
11
9
12
10
15
8
5
7
6
Mnemonic
VIN
D1
D2
D3
D4
D5
D6
D7
D8
D9
VOUT
C1+
C1−
C2+
C2−
GND
nINT
nRST
SDA
SCL
Description
Battery Voltage 2.5 V to 5.5 V.
LED Sink 1 Output.
LED Sink 2 Output.
LED Sink 3 Output.
LED Sink 4 Output.
LED Sink 5 Output.
LED Sink 6 Output.
LED Sink 7 Output.
LED Sink 8 Output.
LED Sink 9 Output.
Charge Pump Output.
Charge Pump C1+.
Charge Pump C1−.
Charge Pump C2+.
Charge Pump C2−.
Ground. Connect the exposed paddle to GND.
Processor Interrupt (Active Low). Requires an external pull-up resistor. If this pin is not used, it can be left
floating. Alternatively, this pin can be set as the PWM input for implementing cABC dimming (see the
PWM Dimming section).
Hardware Reset Input (Active Low). This bit resets the device to the default conditions. If not used, this pin
must be tied above V
I
I
2
2
C Serial Data Input. Requires an external pull-up resistor.
C Clock Input. Requires an external pull-up resistor.
NOTES
1. CONNECT THE EXPOSED
nRST
PADDLE TO GND.
D3
D2
D1
D9
IH(MAX)
Figure 3. LFCSP Pin Configuration
1
2
3
4
5
.
Rev. 0 | Page 6 of 52
(Not to Scale)
ADP8866
TOP VIEW
15 GND
14
13
12
11 C1+
VOUT
VIN
C2+