TCM828ECT713 Microchip Technology, TCM828ECT713 Datasheet

IC CHARGE PUMP CONV SOT23A-5

TCM828ECT713

Manufacturer Part Number
TCM828ECT713
Description
IC CHARGE PUMP CONV SOT23A-5
Manufacturer
Microchip Technology
Type
Switched Capacitor (Charge Pump), Doubler, Invertingr
Datasheets

Specifications of TCM828ECT713

Package / Case
SOT-23-5, SC-74A, SOT-25
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
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
Part Number:
TCM828ECT713
Manufacturer:
MICROCHIP
Quantity:
12 000
Part Number:
TCM828ECT713
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Switched Capacitor Voltage Converters
FEATURES
APPLICATIONS
TYPICAL OPERATING CIRCUIT
© 2001 Microchip Technology Inc.
PIN CONFIGURATION
NOTE: *5-Pin SOT-23A is equivalent to EIAJ SC-74A
Charge Pump in 5-Pin SOT-23A Package
>95% Voltage Conversion Efficiency
Voltage Inversion and/or Doubling
Low 50 A (TCM828) Quiescent Current
Operates from +1.5V to +5.5V
Up to 25mA Output Current
Only Two External Capacitors Required
LCD Panel Bias
Cellular Phones
Pagers
PDAs, Portable Dataloggers
Battery-Powered Devices
C
1
OUT
V IN
C –
GND
C
C
1
2
3
+
Voltage Inverter
*5-Pin SOT-23A
DS21488A
TCM828
TCM829
TCM828ECT
TCM829ECT
OUT
V
IN
5
4
C +
GND
C
2
OUTPUT
INPUT
V
GENERAL DESCRIPTION
converters in ultra-small 5-Pin SOT-23A 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 12kHz for the TCM828 and 35kHz for
the TCM829.
(3.3 F nominal) for standard voltage inverter applications.
With a few additional components a positive doubler can
also be built. All other circuitry, including control, oscillator,
power MOSFETs are integrated on-chip. Supply current
is 50 A (TCM828) and 115 A (TCM829).
SOT-23A surface mount package.
ORDERING INFORMATION
Part No.
TCM828ECT
TCM829ECT
NOTE: 5-Pin SOT-23A is equivalent to EIAJ SC-74A.
The TCM828/829 are CMOS “charge-pump” voltage
External component requirement is only two capacitors
The TCM828 and TCM829 are available in a 5-Pin
Package
5-Pin SOT-23A
5-Pin SOT-23A
– 40 C to +85 C
– 40 C to +85 C
TCM828
TCM829
Temp. Range
TCM828/829-4 5/22/00

Related parts for TCM828ECT713

TCM828ECT713 Summary of contents

Page 1

... C TCM828 TCM829 OUT GND © 2001 Microchip Technology Inc. DS21488A GENERAL DESCRIPTION The TCM828/829 are CMOS “charge-pump” voltage converters in ultra-small 5-Pin SOT-23A packages. They invert and/or double an input voltage which can range from +1.5V to +5.5V. Conversion efficiency is typically >95%. ...

Page 2

... V 8.4 12 15.6 kHz 24.5 35 45.5 — 96 — 99.9 — % — — — +25 C. (Note 2) A Min Typ Max Unit — — 115 A — — 325 1.5 — 5 — 20 kHz 19 — 54.3 — — 65 © 2001 Microchip Technology Inc. DS21488A ...

Page 3

... R losses due to the on-resistance of the MOSFET switches on-board the charge pump. (3) Charge pump capacitor losses due to effective series resistance (ESR). © 2001 Microchip Technology Inc. DS21488A (4) Losses that occur during charge transfer (from the commutation capacitor to the output capacitor) when a voltage difference between the two capaci- tors exists ...

Page 4

... Switched Capacitor Voltage Converters 3 OUT C2 3 TCM828 L IN 3.3 F* TCM829 – GND Voltage Inverter Figure 3. Test Circuit ) but will droop at least the second TCM828 C1 TCM828 TCM829 TCM829 "n" "1" OUT = – multiple TCM828/829s OUT © 2001 Microchip Technology Inc. V OUT OUT C2 DS21488A ...

Page 5

... TCM829 Figure 6. Combined Doubler and Inverter © 2001 Microchip Technology Inc. DS21488A Diode Protection for Heavy Loads OF SINGLE DEVICE When heavy loads require the OUT pin to sink large currents being delivered by a positive source, diode protec- tion may be needed. The OUT pin should not be allowed pulled above ground ...

Page 6

... IN OUT CAPACITANCE ( F) TCM829 Output Voltage Ripple vs. Capacitance 300 V = 4.75V – 4.0V 250 IN OUT 200 V = 3.15V – 2.5V IN OUT 150 = – 1. 1.9V – 1.5V 100 IN OUT CAPACITANCE ( F) TCM829 Pump Frequency vs. Temperature – TEMPERATURE ( C) © 2001 Microchip Technology Inc. = – 2. DS21488A ...

Page 7

... Output Voltage vs. Output Current 0 – 2.0V IN – 3.3V –3 IN – 5.0V IN –5 – OUTPUT CURRENT (mA) MARKING 5-PIN SOT-23A © 2001 Microchip Technology Inc. DS21488A = +25 C, unless otherwise noted. A Efficiency vs. Output Current 100 =1. OUTPUT CURRENT (mA) Part Numbers and Part Marking & ...

Page 8

... Switched Capacitor Voltage Converters PIN 1 User Direction of Feed P Reverse Reel Component Orientation RT Suffix Device (Mark Upside Down) Part Per Full Reel Reel Size 3000 7 in .010 (0.25) .004 (0.09) Dimensions: inches (mm) © 2001 Microchip Technology Inc. W DS21488A ...

Page 9

... Microchip. No licenses are conveyed, implicitly or otherwise, except as maybe explicitly expressed herein, under any intellec- tual property rights. The Microchip logo and name are registered trademarks of Microchip Technology Inc. in the U.S.A. and other countries. All rights reserved. All other trademarks mentioned herein are the property of their respective companies. ...

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