ADP8861 Analog Devices, ADP8861 Datasheet - Page 6

• Manufacturer Part Number: ADP8861
• Description: Charge Pump, 7-Channel Smart LED Driver with I2C Interface
• Manufacturer: Analog Devices

Specifications of ADP8861

• Vin Range: 2.5 to 5.5V
• Vout (v): 4.3 to 5.5
• Synchronous: No
• Package: 20-Lead LFCSP,20-Lead WLCSP
• Led Configuration: Parallel
• Topology: Capacitive
• I2c Support: Yes
• Max Iout (ma): 60mA
• Brightness Control: PWM
• Peak Efficiency (%): 89%
• Switching Frequency: 1.32MHz
• Over Volt Protection (v): 5.8V

ADP8861
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Table 4. Pin Function Descriptions
LFCSP
14
3
2
1
20
19
17
16
18
13
11
9
12
10
15
8
6
5
7
4
21
Pin No.
WLCSP
A3
D3
E3
E4
D4
C4
B4
B3
C3
A2
A1
C1
B1
B2
A4
D1
D2
E1
C2
E2
NA
nRST
SCL
NOTES
1. CONNECT THE EXPOSED PADDLE
Figure 3. LFCSP Pin Configuration
D3
D2
D1
TO GND1 AND/OR GND2.
1
2
3
4
5
(Not to Scale)
Mnemonic
VIN
D1
D2
D3
D4
D5
D6
D7
NA
VOUT
C1+
C1−
C2+
C2−
GND1
GND2
nINT
nRST
SDA
SCL
EPAD
TOP VIEW
15
14
13
12
11
GND1
VIN
VOUT
C2+
C1+
Description
Input Voltage, 2.5 V to 5.5 V.
LED Sink 1.
LED Sink 2.
LED Sink 3.
LED Sink 4.
LED Sink 5.
LED Sink 6.
LED Sink 7.
This pin is not used and must be connected to ground.
Charge Pump Output.
Charge Pump C1+.
Charge Pump C1−.
Charge Pump C2+.
Charge Pump C2−.
Ground. Connect the exposed pad to GND1 and/or GND2.
Ground. Connect the exposed pad to GND1 and/or GND2.
Processor Interrupt (Active Low). Requires an external pull-up resistor. If this pin is not used,
it can be left floating.
Hardware Reset (Active Low). This pin resets the device to the default conditions. If not used,
this pin must be tied above V
I
I
Exposed Paddle. Connect the exposed paddle to GND1 and/or GND2.
2
2
C Serial Data. Requires an external pull-up resistor.
C Clock. Requires an external pull-up resistor.
Rev. A | Page 6 of 40
IH(MIN)
.
A
B
C
D
E
Figure 4. WLCSP Pin Configuration
GND2
nRST
C2+
C1–
C1+
1
(BALL SIDE DOWN)
VOUT
nINT
SDA
SCL
Not to Scale
C2–
TOP VIEW
2
VIN
NA
D1
D2
D7
3
GND1
D5
D4
D3
D6
4