TCM828ECT713 Microchip Technology, TCM828ECT713 Datasheet

TCM828ECT713

Manufacturer Part Number

TCM828ECT713

Description

IC CHARGE PUMP CONV SOT23A-5

Manufacturer

Microchip Technology

Type

Switched Capacitor (Charge Pump), Doubler, Invertingr

Datasheets

1.TCM828ECT713.pdf (26 pages)

2.TCM828ECT713.pdf (9 pages)

Specifications of TCM828ECT713

Package / Case

SOT-23-5, SC-74A, SOT-25

Internal Switch(s)

Yes

Synchronous Rectifier

Number Of Outputs

Voltage - Output

-1.5 ~ -5.5 V, ±3 ~ ±11 V

Current - Output

25mA

Frequency - Switching

12kHz

Voltage - Input

1.5 ~ 5.5 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Power - Output

240mW

Minimum Operating Temperature

- 40 C

Mounting Style

SMD/SMT

Function

Inverting, Step Up

Output Voltage

- 1.5 V to - 5.5 V, 3 V to 11 V

Output Current

25 mA

Maximum Operating Temperature

85 C

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Lead Free Status / RoHS Status

Lead free / RoHS Compliant, Lead free / RoHS Compliant

Other names

158-2031-2
158-2031-2
TCM828ECT713TR

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

TCM828ECT713

Manufacturer:

MICROCHIP

Quantity:

12 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

TCM828ECT713

Manufacturer:

MICROCHIP/微芯

Quantity:

20 000

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Download datasheet (360Kb)

Features

• Charge Pump in 5-Pin SOT-23 Package

• >95% Voltage Conversion Efficiency

• Voltage Inversion and/or Doubling

• Low 50 µA (TCM828) Quiescent Current

• Operates from +1.5V to +5.5V

• Up to 25 mA Output Current

• Only Two External Capacitors Required

Applications

• LCD Panel Bias

• Cellular Phones

• Pagers

• PDAs, Portable Dataloggers

• Battery-Powered Devices

Typical Application Circuit

Voltage Inverter

GND

Switched Capacitor Voltage Converters

OUT

OUTPUT

INPUT

TCM828/TCM829

Description

The TCM828/TCM829 devices are CMOS “charge-

pump” voltage converters in ultra-small, 5-Pin SOT-23

packages. They invert and/or double an input voltage

which can range from +1.5V to +5.5V. Conversion

efficiency is typically >95%. Switching frequency is

12 kHz for the TCM828, and 35 kHz for the TCM829.

External component requirement is only two capacitors

(3.3 µF

applications. With a few additional components, a

positive doubler can also be built. All other circuitry,

including control, oscillator and power MOSFETs, are

integrated on-chip. Supply current is 50 µA (TCM828)

and 115 µA (TCM829).

The TCM828 and TCM829 devices are available in a

5-Pin SOT-23 surface mount package.

Package Type

Ordering Information

TCM828ECT

TCM828VT

TCM829ECT

Note:

Part No.

OUT

nominal)

5-Pin SOT-23 is equivalent to EIAJ

SC-74A.

TCM828/TCM829

5-Pin SOT-23

for

SOT-23

Package

standard

-40°C to +125°C

voltage

-40°C to +85°C

DS21488B-page 1

Temperature

GND

Range

inverter

Related parts for TCM828ECT713

TCM828ECT713 Summary of contents

Page 1

... OUT GND © 2010 Microchip Technology Inc. TCM828/TCM829 Description The TCM828/TCM829 devices are CMOS “charge- pump” voltage converters in ultra-small, 5-Pin SOT-23 packages. They invert and/or double an input voltage which can range from +1.5V to +5.5V. Conversion efficiency is typically >95%. Switching frequency is 12 kHz for the TCM828, and 35 kHz for the TCM829 ...

Page 2

Page 3

... R OUT Note 1: All -40°C to +85°C specifications above are assured by design. © 2010 Microchip Technology Inc. TCM828/TCM829 † Notice: Stresses above those listed under “Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of ...

Page 4

Page 5

... SUPPLY VOLTAGE (V) FIGURE 2-1: Output Resistance vs. Supply Voltage 0°C –40°C 25°C TEMPERATURE (°C) FIGURE 2-2: Output Resistance vs. Temperature. © 2010 Microchip Technology Inc. TCM828/TCM829 = +25°C, unless otherwise noted 4.5 0 FIGURE 2-3: vs. Capacitance 85°C FIGURE 2-4: vs. Capacitance. ...

Page 6

... FIGURE 2-10: Current 5. 3. 1.5V IN 0°C 25°C 85°C TEMPERATURE (°C) TCM828 – Pump Frequency 1.5V IN 0°C 25°C 85°C TEMPERATURE (°C) TCM829 – Pump Frequency OUTPUT CURRENT (mA) Output Voltage vs. Output © 2010 Microchip Technology Inc. ...

Page 7

... Note: Circuit of Figure 5- +5V C3 100 =1. OUTPUT CURRENT (mA) FIGURE 2-11: Efficiency vs. Output Current. © 2010 Microchip Technology Inc. TCM828/TCM829 = +25°C, unless otherwise noted DS21488B-page 7 ...

Page 8

Page 9

... The descriptions of the pins are listed in TABLE 3-1: PIN FUNCTION TABLE TCM828/TCM829 Symbol SOT-23 1 OUT GND + © 2010 Microchip Technology Inc. TCM828/TCM829 Table 3-1. Function Inverting charge pump output Positive power supply input Commutation capacitor negative terminal Ground Commutation capacitor positive terminal DS21488B-page 9 ...

Page 10

Page 11

... C2. During the IN second phase, S2 and S4 are closed, and S1 and S3 are open. This action connects C1 across C2, restoring charge to C2 TCM828/ TCM829 FIGURE 4-1: Ideal Switched Capacitor Charge Pump. © 2010 Microchip Technology Inc. TCM828/TCM829 V = -(V ) OUT IN DS21488B-page 11 ...

Page 12

Page 13

... OSC The 1/(f )(C1) term in Equation 5-1 OSC output resistance of an ideal switched capacitor circuit (Figures 5-1 and 5-2). © 2010 Microchip Technology Inc. TCM828/TCM829 The losses in the circuit due to factor 4 above are also shown in Equation shown in Equation EQUATION 5-2: voltage ...

Page 14

... Table 5-1 for capacitor V OUT C3 3.3 µF* V OUT 3.3 µ 3.3 µF* 4 GND Voltage Inverter Test Circuit. (Table 5-4). If the output is of the first device multiplied by the TCM828/ TCM829 4 C1 "n" OUT . . . -nV OUT IN Cascading TCM828 or © 2010 Microchip Technology Inc. ...

Page 15

... Because both sub-circuits rely on the same switches, if either output is loaded, both will drop toward GND. Make sure that the total current drawn from both the outputs does not total more than 40 mA. © 2010 Microchip Technology Inc. TCM828/TCM829 ...

Page 16

Page 17

... Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. © 2010 Microchip Technology Inc. TCM828/TCM829 Example: Device Code ...

Page 18

... Component Taping Orientation for 5-Pin SOT-23 (EIAJ SC-74A) Devices. DS21488B-page 18 PIN 1 Marking Device Reverse Reel Component Orientation RT Suffix Device (Mark Upside Down) Carrier Width (W) Pitch (P) Part Per Full Reel 3000 User Direction of Feed W P Reel Size 7 in © 2010 Microchip Technology Inc. ...

Page 19

Page 20

... TCM828/TCM829 5-Lead Plastic Small Outline Transistor (CT) [SOT-23] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS21488B-page 20 © 2010 Microchip Technology Inc. ...

Page 21

... APPENDIX A: REVISION HISTORY Revision B (August 2010) The following is the list of modifications: 1. Added new operating temperature for TCM828 (TCM828VT). 2. Reformatted the original document. 3. Updated package drawings. Revision A (March 2001) • Original Release of this Document. © 2010 Microchip Technology Inc. TCM828/TCM829 DS21488B-page 21 ...

Page 22

Page 23

... Range Device: TCM828: CMOS Voltage Converter. TCM829: CMOS Voltage Converter. Temperature Range -40°C to +85° -40°C to +125°C Package 5-Lead Plastic Small Outline Transistor, SOT-23. © 2010 Microchip Technology Inc. TCM828/TCM829 . Examples: a) TCM828ECT728: Extended Temp., 5-LD SOT-23 Package. b) TCM828VT713: Various Temperature 5-LD SOT-23 Package ...

Page 24

Page 25

... PICtail, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, UniWinDriver, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

Page 26

... Fax: 886-3-6578-370 Taiwan - Kaohsiung Tel: 886-7-213-7830 Fax: 886-7-330-9305 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2010 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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