ICL7660EPA Maxim Integrated Products, ICL7660EPA Datasheet - Page 3

• Manufacturer Part Number: ICL7660EPA
• Description: Charge Pumps Switched-Capacitor Voltage Converter
• Manufacturer: Maxim Integrated Products

Specifications of ICL7660EPA

• Function: Inverting, Step Up
• Output Voltage: - 1.5 V to - 10 V, 3 V to 20 V
• Output Current: 20 mA
• Maximum Operating Temperature: + 85 C
• Package / Case: PDIP-8 Narrow
• Minimum Operating Temperature: - 40 C
• Mounting Style: Through Hole

(V+ = 5V; C
__________________________________________Typical Operating Characteristics
100
-2.0
-1.5
-1.0
-0.5
100
90
80
70
60
50
40
30
90
80
70
60
50
40
30
20
10
0
0
10
0
0
OUTPUT VOLTAGE and OUTPUT RIPPLE
1
A: MAX1044 with
B: ICL7660
C: MAX1044 with
EFFICIENCY and SUPPLY CURRENT
EFFICIENCY
BOOST = V+
BOOST = OPEN
1
1
vs. OSCILLATOR FREQUENCY
OSCILLATOR FREQUENCY (Hz)
2
10
BYPASS
2
vs. LOAD CURRENT
vs. LOAD CURRENT
2
LOAD CURRENT (mA)
LOAD CURRENT (mA)
3
3
B
EFFICIENCY
4
4
10
C
A
= 0.1µF; C1 = C2 = 10µF; LV = open; OSC = open; T
3
OUTPUT
VOLTAGE
5
_______________________________________________________________________________________
5
SUPPLY CURRENT
Switched-Capacitor Voltage Converters
6
6
10
OUTPUT RIPPLE
EXTERNAL
HCMOS
OSCILLATOR
4
7
7
V+ = 2V
LV = GND
V+ = 2V
LV = GND
8
8
10
5
9
9 10
6x10
10
5
400
350
300
250
200
150
100
50
0
10
9
8
7
6
5
4
3
2
1
0
100,000
10,000
1000
-5.0
-4.5
-4.0
-3.5
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
100
100
0.1
90
80
70
60
50
40
30
20
10
10
0
0
1
0
0
1
OUTPUT VOLTAGE and OUTPUT RIPPLE
EFFICIENCY and SUPPLY CURRENT
A: MAX1044 with
B: ICL7660
C: MAX1044 with
A: MAX1044 with
B: ICL7660
C: MAX1044 with
ICL7660 and
MAX1044 with
BOOST = OPEN
EFFICIENCY
BOOST = V+
BOOST = OPEN
BOOST = V+
BOOST = OPEN
5
5
vs. EXTERNAL CAPACITANCE
OSCILLATOR FREQUENCY
10
10
10
vs. LOAD CURRENT
vs. LOAD CURRENT
LOAD CURRENT (mA)
LOAD CURRENT (mA)
B
A
15
15
C
100
C
OUTPUT VOLTAGE
OSC
20
20
MAX1044 with
BOOST -V+
(pF)
A
OUTPUT RIPPLE
SUPPLY CURRENT
1000
25
25
B
V+ = 5V
LV = OPEN
V+ = 5V
LV = OPEN
A
30
30
10,000
C
= +25°C; unless otherwise noted.)
A
35
35
B
C
100,000
40
40
50
45
40
35
30
25
20
15
10
5
0
800
720
640
560
480
400
320
240
160
80
0
100,000
10,000
1000
-10
100
100
-9
-8
-7
-6
-5
-4
-3
-2
-1
90
80
70
60
50
40
30
20
10
0
0
0
0
1
OUTPUT VOLTAGE and OUTPUT RIPPLE
EFFICIENCY and SUPPLY CURRENT
B, C
OUTPUT
VOLTAGE
OUTPUT
RIPPLE
A: MAX1044 with
B: ICL7660
C: MAX1044 with
A: MAX1044 with
B: ICL7660
C: MAX1044 with
2
5
BOOST = V+
BOOST = OPEN
5
BOOST = V+
BOOST = OPEN
EFFICIENCY
OSCILLATOR FREQUENCY
FROM TOP TO BOTTOM AT 5V
MAX1044, BOOST = V+, LV = GND
MAX1044, BOOST = V+, LV = OPEN
ICL7660, LV = GND
ICL7660, LV = OPEN
MAX1044, BOOST = OPEN, LV = GND
MAX1044, BOOST = OPEN, LV = OPEN
10
10
3
vs. SUPPLY VOLTAGE
vs. LOAD CURRENT
vs. LOAD CURRENT
LOAD CURRENT (mA)
LOAD CURRENT (mA)
SUPPLY VOLTAGE (V)
A
B
A
4
15
15
C
5
20
20
SUPPLY CURRENT
6
25
25
7
A
V+ = 10V
LV = OPEN
V+ = 10V
LV = OPEN
30
30
8
B
C
35
35
9
40
40
10
50
45
40
35
30
25
20
15
10
5
0
700
630
560
490
420
350
280
210
140
70
0
3