TC1240AECHTR Microchip Technology, TC1240AECHTR Datasheet

IC CHARGE PUMP CONV SOT23A-6

TC1240AECHTR

Manufacturer Part Number
TC1240AECHTR
Description
IC CHARGE PUMP CONV SOT23A-6
Manufacturer
Microchip Technology
Type
Switched Capacitor (Charge Pump), Doublerr
Datasheet

Specifications of TC1240AECHTR

Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
-1.8 ~ -5.5 V, ±3.6 ~ ±11 V
Current - Output
20mA
Frequency - Switching
80kHz
Voltage - Input
2.5 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-6
Power - Output
600mW
Primary Input Voltage
5.5V
No. Of Outputs
1
Output Current
20mA
Voltage Regulator Case Style
SOT-23A
No. Of Pins
6
Operating Temperature Range
-40°C To +85°C
Svhc
No SVHC (15-Dec-2010)
Function
Step Up
Output Voltage
5 V to 11 V
Maximum Operating Temperature
85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TC1240AECHTR
Manufacturer:
MICROCHIP
Quantity:
12 000
Part Number:
TC1240AECHTR
Manufacturer:
MICROCHP
Quantity:
20 000
Part Number:
TC1240AECHTR
Manufacturer:
MICROCHIP
Quantity:
13 709
Features
• Charge Pumps in 6-Pin SOT-23A Package
• >99% Typical Voltage Conversion Efficiency
• Voltage Doubling
• Input Voltage Range, TC1240: +2.5V to +4.0V,
• Low Output Resistance, TC1240: 17Ω (Typical)
• Only Two External Capacitors Required
• Low Supply Current, TC1240: 180 µA (Typical)
• Power-Saving Shutdown Mode (1 µA Maximum)
• Shutdown Input Fully Compatible with 1.8V Logic
Applications
• Cellular Phones
• Pagers
• PDAs, Portable Data Loggers
• Battery Powered Devices
• Handheld Instruments
Package Type
 2003 Microchip Technology Inc.
M
Systems
NOTE: 6-Pin SOT-23A is equivalent to the
Positive Doubling Charge Pumps with Shutdown
EIAJ (SC-74A)
C+
V
6-Pin SOT-23A
6
TC1240AECH
1
IN
TC1240ECH
TC1240A: +2.5V to +5.5V
V
TC1240A: 550 µA (Typical)
GND
OUT
2
5
TC1240A: 12Ω (Typical)
SHDN
C-
3
4
in a SOT-23 Package
TC1240/TC1240A
circuitry (including control, oscillator and power
MOSFETs) are integrated on-chip. Typical supply cur-
General Description
The TC1240/TC1240A is a doubling CMOS charge
pump voltage converter in a small 6-Pin SOT-23A
package. The TC1240 doubles an input voltage that
can range from +2.5V to +4.0V, while the TC1240A
doubles an input voltage that can range from +2.5V to
+5.5V. Conversion efficiency is typically >99%. Internal
oscillator frequency is 160 kHz for both devices. The
TC1240 and TC1240A have an active-high shutdown
that limits the current consumption of the devices to
less than 1 µA.
External component requirement is only two capacitors
for standard voltage doubler applications. All other
rent is 180 µA for the TC1240 and 550 µA for the
TC1240A. Both devices are available in a 6-Pin SOT-
23A surface mount package.
Typical Application Circuit
C
1
+
Positive Voltage Doubler
C+
C-
GND
TC1240A
TC1240
SHDN
V
OUT
V
IN
+
DS21516C-page 1
C
ON
2
OFF
2 x INPUT
INPUT

Related parts for TC1240AECHTR

TC1240AECHTR Summary of contents

Page 1

... V GND C- IN NOTE: 6-Pin SOT-23A is equivalent to the EIAJ (SC-74A)  2003 Microchip Technology Inc. TC1240/TC1240A in a SOT-23 Package General Description The TC1240/TC1240A is a doubling CMOS charge pump voltage converter in a small 6-Pin SOT-23A package. The TC1240 doubles an input voltage that can range from +2 ...

Page 2

... Minimum and maximum val- A Conditions = ∞ R LOAD SHDN = 1.0 kΩ LOAD R = 1.0 kΩ LOAD T = -40°C to +85° -40°C to +85° MIN MAX MIN MAX R = 1.0 kΩ LOAD = ∞ R LOAD R = 1.0 kΩ LOAD T = -40°C to +85°C A  2003 Microchip Technology Inc. ...

Page 3

... Voltage Conversion Efficiency V EFF Output Resistance (Note 2) R OUT Note 1: Switching frequency is one-half internal oscillator frequency. 2: Capacitor contribution is approximately 26% of the output impedance [ESR = 1 / switching frequency x capacitance].  2003 Microchip Technology Inc. TC1240/TC1240A = +5.0V 3.3 µF, SHDN = GND Min Typ Max Units — ...

Page 4

... Temperature (with R 100% 90% 80% 70% 60% 50 4.0V IN 40% 30% 20% 10 FIGURE 2-6: Current 4. 2. 100 125 TEMPERATURE (°C) Supply Current vs 2. 4. 100 125 TEMPERATURE (°C) Output Source Resistance = 1 kΩ). LOAD LOAD CURRENT (mA) Power Efficiency vs. Load  2003 Microchip Technology Inc. ...

Page 5

... Note: Unless otherwise indicated, typical values apply at T 100 -50 - TEMPERATURE (°C) FIGURE 2-7: Switching Frequency vs. Temperature.  2003 Microchip Technology Inc. TC1240/TC1240A = +25° 4. 2.8V IN 100 125 DS21516C-page 5 ...

Page 6

... The description of the pins are listed in Table 3-1. TABLE 3-1: PIN FUNCTION TABLE Pin No. Symbol GND SHDN 5 V OUT 6 C+ DS21516C-page 6 Description Power supply input Ground Commutation capacitor negative terminal Shutdown input (active high) Doubled output voltage Commutation capacitor positive terminal  2003 Microchip Technology Inc. ...

Page 7

... OSC FIGURE 4-1: Ideal Switched Capacitor Charge Pump Doubler.  2003 Microchip Technology Inc. TC1240/TC1240A 5.0 TYPICAL APPLICATIONS 5.1 Output Voltage Considerations The TC1240/TC1240A performs voltage doubling but and S does not provide regulation. The output voltage will 1 3 droop in a linear manner with respect to load current. ...

Page 8

... VS. C (ESR = 0.1Ω) 1 TC1240 TC1240A R (Ω) R (Ω) OUT OUT 47 35 28.5 20.5 19 15.5 10.5 13.6 9.3 12.5 8.3 12.2 8.1 OUTPUT VOLTAGE RIPPLE VS. C (ESR = 0.1Ω OUT TC1240/TC1240A V (mV) RIPPLE 142 6.7 2.5 1.6  2003 Microchip Technology Inc. ...

Page 9

... TC1240 3.3 µF 3.3 µF TC1240A FIGURE 5-3: Test Circuit.  2003 Microchip Technology Inc. TC1240/TC1240A 5.6 Voltage Doubler The most common application for charge pump devices is the doubler (Figure 5-3). This application device. The uses two external capacitors – C supply bypass capacitor, if necessary) ...

Page 10

... TC1240 TC1240 TC1240A TC1240A 2 GND 5 3 "1" C- OUT "n" 4 SHDN + 1)V OUT R OF SINGLE DEVICE OUT R = OUT NUMBER OF DEVICES . . . TC1240 TC1240 2 TC1240A TC1240A "1" "n" 4 SHDN SHDN . . . OUT , multiple TC1240/ OUT OUT OUT + OUT +  2003 Microchip Technology Inc. ...

Page 11

... PACKAGING INFORMATION 6.1 Package Marking Information 6-Pin SOT-23A & = part number code + temperature range 1 2 (two-digit code) Device Code TC1240 TC1240A ex: 1240AECH = E N represents year and 2-month code 3 represents production lot ID code 4  2003 Microchip Technology Inc. TC1240/TC1240A DN EN DS21516C-page 11 ...

Page 12

... A2 MILLIMETERS MIN NOM MAX 6 0.95 1.90 0.90 1.18 1.45 0.90 1.10 1.30 0.00 0.08 0.15 2.60 2.80 3.00 1.50 1.63 1.75 2.80 2.95 3.10 0.35 0.45 0. 0.09 0.15 0.20 0.35 0.43 0.  2003 Microchip Technology Inc. ...

Page 13

... Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using. Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products.  2003 Microchip Technology Inc. TC1240/TC1240A . Examples: a) TC1240ECHTR: Tape and Reel, 6L SOT-23 (EIAJ) b) TC1240AECHTR: Tape and Reel, 6L SOT-23 (EIAJ) DS21516C-page 13 ...

Page 14

... TC1240/TC1240A NOTES: DS21516C-page 14  2003 Microchip Technology Inc. ...

Page 15

... 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. © 2003, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received QS-9000 quality system ...

Page 16

... 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 (Barbados) Inc., Taiwan Branch 11F-3, No ...

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