ADP8863 Analog Devices, ADP8863 Datasheet - Page 3

• Manufacturer Part Number: ADP8863
• Description: Charge Pump, 7-Channel Fun Lighting LED Driver
• Manufacturer: Analog Devices

Specifications of ADP8863

• 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: I2C
• Peak Efficiency (%): 89%
• Switching Frequency: 1.32MHz
• Over Volt Protection (v): 5V

SPECIFICATIONS
VIN = 3.6 V, SCL = 2.7 V, SDA = 2.7 V, nINT = open, nRST = 2.7 V, CMP_IN = 0 V, V
C
+85°C, unless otherwise noted.
Table 1.
Parameter
SUPPLY
OSCILLATOR
OUTPUT CURRENT CONTROL
AUTOMATIC GAIN SELECTION
AMBIENT LIGHT SENSING
OUT
Input Voltage
V
UVLO Noise Filter
Quiescent Current
Switching Frequency
Duty Cycle
Maximum Drive Current
LED Current Source Matching
Leakage Current on LED Pins
Equivalent Output Resistance
Regulated Output Voltage
Minimum Voltage
Minimum Current Sink Headroom
Gain Delay
COMPARATORS
Ambient Light Sensor Current
DAC Bit Step
IN(START)
Operating Range
Start-Up Level
Low Level
Prior to V
During Standby
After Startup and Switching
D1 to D7
D7 Only (60 mA Setting)
All Current Sinks
D2 to D7 Current Sinks
Gain = 1×
Gain = 1.5×
Gain = 2×
Gain Increases
Voltage
Threshold L2 Level
Threshold L3 Level
= 1 μF, typical values are at T
T
T
T
T
J
J
J
J
= 25°C
= −40°C to +85°C
= 25°C
= −40°C to +85°C
Hysteresis
IN(START)
1
A
= 25°C and are not guaranteed, minimum and maximum limits are guaranteed from T
Symbol
V
V
V
V
t
I
I
I
I
f
D
I
I
I
I
I
I
R
V
V
V
t
I
I
I
Q
Q(START)
Q(STBY)
Q(ACTIVE)
D1:D7(MAX)
D7(60 mA)
MATCH
MATCH7
MATCH6
D1:D7(LKG)
ALS
L2BIT
L3BIT
SW
UVLO
GAIN
IN
IN(START)
IN(STOP)
IN(HYS)
OUT
OUT(REG)
HR(UP)
HR(MIN)
Test Conditions/Comments
V
V
After startup
V
V
V
gain = 2×
V
Bit SCR = 0 in the ISC7 register
V
V
V
V
V
V
V
V
Decrease V
I
The delay after gain has changed and
before gain is allowed to change again
CMP_IN = V
I
I
DX
L2BIT
L3BIT
IN
IN
IN
IN
IN
D1:D7
D7
D1:D7
D2:D7
IN
IN
IN
IN
IN
= I
increasing
decreasing
= V
= 3.6 V, Bit nSTBY = 0, SCL = SDA = 0 V
= 3.6 V, Bit nSTBY = 1, I
= 5.5 V, V
= 3.6 V, I
= 3.1 V, I
= 2.5 V, I
= 3 V, gain = 2×, I
= 0.4 V, Bit SCR = 1 in the ISC7 register
= I
= I
DX(MAX)
= 0.4 V
= 0.4 V
= 0.4 V
IN(START)
ALS
ALS
/250
/2000
Rev. A | Page 3 of 52
D1:D7
OUT
OUT
OUT
× 95%
D6
D1:D7
− 100 mV
= 2.8 V, Bit CMP2_SEL = 1
= 100 mA
= 100 mA
= 100 mA
until the gain switches up
= 2.5 V, Bit nSTBY = 1
OUT
= 10 mA
OUT
= 0 mA,
D1:D7
= 0.4 V, Capacitor C1 = 1 μF, Capacitor C2 = 1 μF,
Min
2.5
1.75
0.8
26.2
24.4
52.5
48.8
4.3
162
0.70
Typ
2.05
1.97
80
10
10
0.3
4.5
1
50
30
60
2.0
1.5
0.5
3.0
3.8
4.9
200
180
100
1.08
4.3
0.54
A
ADP8863
= −40°C to
Max
5.5
2.30
1.0
7.2
1.32
34.1
34.1
67
67
0.5
5.5
276
1.33
Unit
V
V
V
mV
μs
μA
μA
mA
MHz
%
mA
mA
mA
mA
%
%
μA
Ω
Ω
Ω
V
mV
mV
μs
mA
μA
μA