TC1044 TELCOM [TelCom Semiconductor, Inc], TC1044 Datasheet - Page 7

• Manufacturer Part Number: TC1044
• Description: CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
• Manufacturer: TELCOM [TelCom Semiconductor, Inc]

TYPICAL CHARACTERISTICS
CHARGE PUMP DC-TO-DC
VOLTAGE CONVERTER
10µF
1000
C 1
800
600
400
200
12
10
8
6
4
2
0
TELCOM SEMICONDUCTOR, INC.
-40
0
-40
+
Supply Current vs. Temperature
Unloaded Osc Freq vs. Temperature
-20
Figure 10. Positive Voltage Conversion
-20
1
2
3
4
(with Boost Pin = V
TC1044S
TEMPERATURE ( C)
0
0
TEMPERATURE ( C)
20
20
8
7
6
5
V OUT = –V –
1 M
40
40
V – INPUT
IN
60
60
)
V
V
V
V
IN
IN
IN
IN
= 12V
80
80
= 5V
= 12V
= 5V
+
10µF
100
100
101.0
100.5
100.0
V OUT =
99.5
99.0
98.5
98.0
R L1
V + –V –
R L2
60
50
40
30
20
10
0
2
Unloaded Osc Freq vs. Temperature
-40
1
+
50
µF
2
-20
Figure 11. Splitting a Supply in Half
50 µF
with Boost Pin = V
3
50
µF
100
k
INPUT VOLTAGE V
Voltage Conversion
4
0
+
+
100
TEMPERATURE ( C)
k
5
20
6
1
2
3
4
TC1044S
7
40
IN
(V)
V
IN
8
IN
= 12V
60
Without Load
9
10K Load
8
7
6
5
V
TC1044S
IN
T
1 M
10
A
= 5V
80
= 25 C
11
V +
V –
100
4-49
12
1
2
3
4
5
6
7
8