TC1121EPA Microchip Technology, TC1121EPA Datasheet - Page 7

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TC1121EPA

Manufacturer Part Number
TC1121EPA
Description
IC CHARGE PUMP CONV 100MA 8-DIP
Manufacturer
Microchip Technology
Type
Switched Capacitor (Charge Pump), Invertingr
Datasheets

Specifications of TC1121EPA

Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
-2.4 ~ -5.5 V
Current - Output
100mA
Frequency - Switching
10kHz ~ 200kHz
Voltage - Input
2.4 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
Power - Output
730mW
Primary Input Voltage
5V
No. Of Outputs
1
Output Voltage
-5.5V
Output Current
100mA
No. Of Pins
8
Operating Temperature Range
-40°C To +85°C
Power Dissipation Pd
470mW
Function
Inverting
Maximum Operating Temperature
85 C
Minimum Operating Temperature
- 40 C
Mounting Style
Through Hole
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
158-1063
158-1063

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TC1121EPA
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
3.6
Figure 3-4 shows this dual function circuit, in which
capacitors C1 and C2 perform pump and reservoir
functions to generate negative voltage. Capacitors C3
and C4 are the respective capacitors for multiplied
positive voltage. This particular configuration leads to
higher source impedances of the generated supplies
due to the finite impedance of the common
charge-pump driver.
FIGURE 3-4:
© 2006 Microchip Technology Inc.
Combined Positive Supply
Multiplication and Negative
Voltage Conversion
Combined Positive Multiplier and Negative Converter
*SHDN should be tied to V
C1
+
2
3
4
FC
CAP
GND
CAP
TC1121
+
C3
+
SHDN
V
OSC
OUT
IN
V
IN
if
not used.
8
5
6
V
IN
+
SHDN*
D1, D2 = 1N4148
D1
D2
+
C4
+
C2
V
V
(V
OUT
OUT = (
FD1
= V
) – (V
2V
IN
IN
FD2
) –
)
TC1121
DS21358C-page 7

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