ADP8861 Analog Devices, ADP8861 Datasheet - Page 8
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ADP8861
Manufacturer Part Number
ADP8861
Description
Charge Pump, 7-Channel Smart LED Driver with I2C Interface
Manufacturer
Analog Devices
Datasheet
1.ADP8861.pdf
(40 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ADP8861ACPZ-R7
Manufacturer:
ADI/亚德诺
Quantity:
20 000
ADP8861
Figure 11. Typical Diode Current vs. Current Sink Headroom Voltage (V
–1
–2
–3
–4
–5
–6
Figure 12. Typical Change In Diode Current vs. Temperature
35
30
25
20
15
10
1
0
5
0
–40
7
6
5
4
3
2
1
0
–40
0
V
V
V
I
D1:D7
I
IN
D1:D7
OUT
IN
= 3.6V
= 3.6V
0.2
= 100mA
= 30mA
–20
= 0.40V
–10
0.4
Figure 13. R
JUNCTION TEMPERATURE (°C)
0.6
0
G = 2× @ V
G = 1.5× @ V
G = 1× @ V
TEMPERATURE (°C)
0.8
20
OUT
20
V
vs. Temperature
HR
1.0
IN
IN
(V)
IN
40
= 2.5V
= 3.6V
1.2
50
= 3V
1.4
60
1.6
80
80
–40°C
+25°C
+85°C
+105°C
1.8
100
110
2.0
HR
Rev. A | Page 8 of 40
)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
1.4
1.2
1.0
0.8
0.6
0.4
0.2
10
0
9
8
7
6
5
4
3
2
1
0
0
2.0
2.0
2.5
V
OUT
Figure 15. Typical Output Soft Start Current, I
Figure 16. Typical I
= 80% OF V
2.5
2.5
Figure 14. Typical R
3.0
V
V
V
IH
IH
IH
3.0
3.0
@ +25°C
@ +85°C
@ –40°C
IN
3.5
3.5
3.5
2
C Thresholds, V
V
V
V
IN
IN
IN
OUT
4.0
(V)
(V)
(V)
(G = 1×) vs. V
4.0
4.0
4.5
4.5
4.5
IH
and V
I
OUT
IN
V
V
V
= 100mA
5.0
IL
IL
IL
IL
5.0
5.0
SS
–40°C
+25°C
+85°C
+105°C
–40°C
+25°C
+85°C
+105°C
@ +25°C
@ +85°C
@ –40°C
5.5
5.5
5.5