adp3811 Analog Devices, Inc., adp3811 Datasheet - Page 4

• Manufacturer Part Number: adp3811
• Description: Secondary Side, Off-line Battery Charger Controllers
• Manufacturer: Analog Devices, Inc.

ADP3810/ADP3811
Figure 2. Reference Output Voltage
vs. Temperature for Two Typical Parts
Figure 8. Full-Scale Current Sense
Voltage vs. Temperature
2.004
2.002
2.000
1.998
1.996
1.994
Figure 5. Reference PSRR vs.
Frequency
–294
–296
–298
–300
–302
–304
–20
–30
–40
–50
–60
–70
–80
100
–50
–50
V
I
C
2 TYPICAL PARTS
L
CC
L
= 100µA
–25
= 0.1µF
–25
= +10V
1k
TEMPERATURE – C
TEMPERATURE – C
FREQUENCY – Hz
0
0
10k
25
25
V
R3 = 20k
V
I
C
50
L
50
CC
CC
L
= 100µA
100k
–Typical Performance Characteristics
= 0.1µF
= +10V
= +10V
75
75
100
1M
100
Figure 6. Reference Noise Density
vs. Frequency
Figure 9. Full-Scale Current Sense
Voltage vs. V
Figure 3. Reference Drop-Out Volt
age (V
–294
–296
–298
–300
–302
–304
250
200
150
100
3000
2500
2000
1500
1000
50
500
0
0
0
1
2
CC
V
C
CC
V
R3 = 20k
L
–V
CC
= 0.1µF
4
3
= +10V
SUPPLY VOLTAGE, V
= +10V
REF
10
LOAD CURRENT – mA
CC
) vs. Load Current
6
6
FREQUENCY – Hz
–4–
8
100
9
10
12
CC
V
I
C
12
L
– Volts
CC
1k
L
= 100µA
= 0.1µF
= +10V
15
14
18
10k
16
Figure 4. Reference Dropout Voltage
vs. Temperature
Figure 7. Charge Current vs. Control
Voltage
Figure 10. GM1 Open-Loop Gain and
Phase vs. Frequency
100
–20
–40
–60
80
60
40
20
0.14
0.12
0.10
0.08
0.06
0.04
0
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
10
0
–50
0
0.2
CONTROL VOLTAGE, V
GAIN
PHASE
100
R
R3 = 20k
–25
CS
= 0.25
0.4
FREQUENCY – Hz
TEMPERATURE – C
1k
0
0.6
25
10k
C
T
V
0.8
A
CC
COMP
= +25 C
= +10V
V
I
C
CTRL
50
L
CC
L
1.0
= 5mA
100k
= 0.01µF
= 0.1µF
= +10V
– Volts
1.2
75
REV. 0
1M
1.4
100
0
45
90
135
180
225