MAX17015 Maxim Integrated Products, MAX17015 Datasheet - Page 7

• Manufacturer Part Number: MAX17015
• Description: (MAX17005 - MAX17015) High-Performance Chargers
• Manufacturer: Maxim Integrated Products

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(Circuit of Figure 1, adapter = 19V, battery = 10V, ISET = 1.05V, V
-10
3.5
3.0
2.5
2.0
1.5
1.0
0.5
10
-2
-4
-6
-8
8
6
4
2
0
0
0
0
ISET PWM DUTY-CYCLE CHANGE
10 20 30 40 50 60 70
1
vs. SYSTEM CURRENT
SYSTEM CURRENT (A)
IINP DC ERROR
DUTY CYCLE
2
_______________________________________________________________________________________
SYSTEM LOAD TRANSIENT
3
200μs/div
80 90
4
100
5
MAX17005 toc07
-10
3.0
2.5
2.0
1.5
1.0
0.5
10
-2
-4
-6
-8
8
6
4
2
0
0
SYSTEM
CURRENT
5A/div
CHARGING
CURRENT
5A/div
INDUCTOR
CURRENT
5A/div
0
0
V
BATT
0.5
100 200 300 400 500
High-Performance Chargers
ISET PWM FREQUENCY SWEEP
= 12.6V
V
1.0 1.5 2.0
vs. SYSTEM CURRENT
BATT
SYSTEM CURRENT (A)
DUTY CYCLE = 75%
DUTY CYCLE = 25%
FREQUENCY (kHz)
= 16.8V
IINP ERROR
CTL
2.5 3.0
= GND, T
Typical Operating Characteristics
600 700
V
BATT
3.5
100
95
90
85
80
75
70
65
60
A
= 8.4V
4.0
0
= +25°C, unless otherwise noted.)
1.2MHz Low-Cost,
800
4.5
0.5
4 CELLS
vs. CHARGE CURRENT
1.0
CHARGE CURRENT (A)
EFFICIENCY
1.5
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
3 CELLS
3.0
2.5
2.0
1.5
1.0
0.5
0
0
2.0
0
0
BATTERY VOLTAGE-SETTING ERROR
0.1 0.2 0.3 0.4 0.5 0.6 0.7
ISET PWM DUTY-CYCLE CHANGE
0.5 1.0 1.5 2.0 2.5
2.5
2 CELLS
3.0
3.5
DUTY CYCLE
VCTL (V)
4.0
3.0 3.5 4.0
0.8 0.9
1.0
4.5
7