ADP8860 Analog Devices, ADP8860 Datasheet - Page 9

• Manufacturer Part Number: ADP8860
• Description: Charge Pump, 7-Channel Smart LED Driver with I2C Interface
• Manufacturer: Analog Devices

Specifications of ADP8860

• Vin Range: 2.4V to 5.5V
• Vout (v): 4.3 to 5.5
• Synchronous: No
• Package: 20-Lead WLCSP
• Led Configuration: Parallel
• Topology: Capacitive
• I2c Support: Yes
• Max Iout (ma): 60mA
• Brightness Control: I2C
• Peak Efficiency (%): 89%
• Switching Frequency: 1MHz

Figure 11. Typical Diode Current vs. Current Sink Headroom Voltage (V
Figure 12. Typical Change In Diode Current vs. Temperature
35
30
25
20
15
10
–1
–2
–3
–4
–5
–6
1
0
5
0
–40
7
6
5
4
3
2
1
0
–40
0
V
I
V
V
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
= 3V
50
1.4
60
1.6
80
80
–40°C
+25°C
+85°C
+105°C
1.8
100
110
2.0
HR
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)
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 16. Typical I
= 80% OF V
2.5
Figure 14. Typical ROUT (G = 1×) vs. V
2.5
Figure 15. Typical Soft Start Current, I
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
4.0
IN
(V)
(V)
(V)
4.0
4.0
4.5
4.5
4.5
IH
and V
I
OUT
SS
IN
V
V
V
= 100mA
5.0
IL
IL
IL
IL
5.0
5.0
ADP8860
= +25°C
= +85°C
= –40°C
–40°C
+25°C
+85°C
+105°C
–40°C
+25°C
+85°C
+105°C
5.5
5.5
5.5