TC1121COA713 Microchip Technology, TC1121COA713 Datasheet

no-image

TC1121COA713

Manufacturer Part Number
TC1121COA713
Description
IC CHARGE PUMP CONV 100MA 8-SOIC
Manufacturer
Microchip Technology
Type
Switched Capacitor (Charge Pump), Invertingr
Datasheets

Specifications of TC1121COA713

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
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Power - Output
470mW
Function
Inverting
Output Voltage
- 5.5 V to - 2.4 V
Output Current
100 mA
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TC1121COA713
Manufacturer:
MICROCHIP
Quantity:
12 000
 2002 Microchip Technology Inc.
Features
• Optional High-Frequency Operation Allows Use of
• Low Operating Current (FC = GND)
• High Output Current (100mA)
• Converts a 2.4V to 5.5V Input Voltage to a
• Uses Only 2 Capacitors; No Inductors Required
• Selectable Oscillator Frequency
• Power-Saving Shutdown Input
• Available in 8-Pin MSOP, 8-Pin PDIP and 8-Pin
Applications
• Laptop Computers
• Medical Instruments
• Disk Drives
• µP-Based Controllers
• Process Instrumentation
Device Selection Table
M
Small Capacitors
- 50µA
Corresponding Negative Output Voltage
(Inverter Mode)
- 10kHz to 200kHz
Small Outline (SOIC) Packages
TC1121COA
TC1121CUA
TC1121EOA
TC1121EUA
TC1121CPA
TC1121EPA
100mA Charge Pump Voltage Converter with Shutdown
Number
Part
8-Pin MSOP
8-Pin MSOP
8-Pin SOIC
8-Pin PDIP
8-Pin SOIC
8-Pin PDIP
Package
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
Operating
Range
Temp.
Package Type
General Description
The TC1121 is a charge pump converter with 100mA
output current capability. It converts a 2.4V to 5.5V
input to a corresponding negative output voltage. As
with all charge pump converters, the TC1121 uses no
inductors saving cost, size and EMI.
An on-board oscillator operates at a typical frequency
of 10kHz (at V
(FC) is connected to ground. The oscillator frequency
increases to 200kHz when FC is connected to V
allowing the use of smaller capacitors. Operation at
sub-10kHz frequencies results in lower quiescent
NScurrent and is accomplished with the addition of an
external capacitor from OSC (pin 7) to ground. The
TC1121 also can be driven from an external clock
NSconnected OSC. Typical supply current at 10kHz is
50µA, and falls to less than 1µA when the shutdown
input is brought low, whether the internal or an external
clock is used. The TC1121 is available in 8-pin SOIC,
MSOP and PDIP packages.
CAP
CAP
CAP
CAP
GND
GND
FC
FC
+
+
+
= 5V) when the frequency control input
1
2
3
4
1
2
3
4
8-Pin MSOP
8-Pin SOIC
8-Pin PDIP
TC1121COA
TC1121CPA
TC1121EOA
TC1121CUA
TC1121EUA
TC1121EPA
TC1121
8
7
6
5
8
7
6
5
DS21358B-page 1
V +
OSC
SHDN
V
V +
OSC
SHDN
V
OUT
OUT
+
,

Related parts for TC1121COA713

TC1121COA713 Summary of contents

Page 1

... TC1121CPA 8-Pin PDIP TC1121CUA 8-Pin MSOP TC1121EOA 8-Pin SOIC TC1121EPA 8-Pin PDIP TC1121EUA 8-Pin MSOP  2002 Microchip Technology Inc. Package Type CAP GND CAP CAP GND CAP General Description The TC1121 is a charge pump converter with 100mA output current capability. It converts a 2.4V to 5.5V input to a corresponding negative output voltage ...

Page 2

... TC1121 Functional Block Diagram HDN SC Control DS21358B-page C1121 RC witch Oscillator atrix ogic ircuits UT 2  2002 Microchip Technology Inc. ...

Page 3

... Connecting any input terminal to voltages greater than V inputs from sources operating from external supplies be applied prior to "power up" of the TC1121.  2002 Microchip Technology Inc. *Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operation sections of the specifications is not implied ...

Page 4

... SHDN Shutdown. 7 OSC Oscillator control input. An external capacitor can be added to slow the oscillator. Take care to minimize stray capacitance. An external oscillator also may be connected to overdrive OSC Power-supply positive voltage input. DS21358B-page 4 Description + = 10kHz typ OSC OSC  2002 Microchip Technology Inc. = 200kHz ...

Page 5

... PUMP oscillator frequency), and C2 = 150µF with an ESR of 0.2Ω, ripple is about 90mV with a 100mA load current raised to 390µF, the ripple drops to 45mV.  2002 Microchip Technology Inc. 3.2 Changing Oscillator Frequency The TC1121’s clock frequency is controlled by four modes: ...

Page 6

... C1, but the reservoir capacitor C2 serves all devices. The value of C2 should be increased by a OUT factor of n (the number of devices C1121 C1121 1n ND HDN HDN 1" used C1121 1n ND HDN HDN not used HDN HDN n" HDN HDN* UT n" 2  2002 Microchip Technology Inc. ...

Page 7

... COMBINED POSITIVE MULTIPLER AND NEGATIVE CONVERTER SHDN should be tied to V  2002 Microchip Technology Inc. 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. + ...

Page 8

... Dimensions: inches (mm) .310 (7.87) .290 (7.37) 3° MIN. .400 (10.16) .310 (7.87) Dimensions: inches (mm)  2002 Microchip Technology Inc. ...

Page 9

... Package Dimensions (Continued) 8-Pin SOIC .157 (3.99) .150 (3.81) .050 (1.27) TYP. .197 (5.00) .189 (4.80) .020 (0.51) .010 (0.25) .013 (0.33) .004 (0.10)  2002 Microchip Technology Inc. PIN 1 .244 (6.20) .228 (5.79) .069 (1.75) .053 (1.35) ° 8 MAX. . .050 (1.27) ...

Page 10

... TC1121 NOTES: DS21358B-page 10  2002 Microchip Technology Inc. ...

Page 11

... The Microchip Worldwide Site (www.microchip.com) Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using. New Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products.  2002 Microchip Technology Inc. TC1121 DS21358B-page11 ...

Page 12

... TC1121 NOTES: DS21358B-page12  2002 Microchip Technology Inc. ...

Page 13

... Serialized Quick Turn Programming (SQTP service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2002, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received QS-9000 quality system ...

Page 14

... Korea Microchip Technology Korea 168-1, Youngbo Bldg. 3 Floor Samsung-Dong, Kangnam-Ku Seoul, Korea 135-882 Tel: 82-2-554-7200 Fax: 82-2-558-5934 Singapore Microchip Technology Singapore Pte Ltd. 200 Middle Road #07-02 Prime Centre Singapore, 188980 Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan Microchip Technology Taiwan 11F-3, No. 207 ...

Related keywords