TC7660SCOA Microchip Technology, TC7660SCOA Datasheet

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TC7660SCOA

Manufacturer Part Number
TC7660SCOA
Description
IC CHARGE PUMP DC/DC CONV 8-SOIC
Manufacturer
Microchip Technology
Type
Switched Capacitor (Charge Pump), Invertingr
Datasheets

Specifications of TC7660SCOA

Package / Case
8-SOIC (3.9mm Width)
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
-1.5 ~ -12 V
Current - Output
20mA
Frequency - Switching
10kHz ~ 45kHz
Voltage - Input
1.5 ~ 12 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Power - Output
470mW
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Function
Inverting/Step Up
Output Voltage
- 12 V to - 1.5 V or 3 V to 24 V
Output Current
20 mA
Maximum Operating Temperature
+ 70 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
158-1067
158-1067

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TC7660SCOA
Manufacturer:
Microchip Technology
Quantity:
836
Company:
Part Number:
TC7660SCOA
Quantity:
5 000
Part Number:
TC7660SCOA713
Manufacturer:
MICROCHIP
Quantity:
12 000
© 2001 Microchip Technology Inc.
SUPER CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
FEATURES
FUNCTIONAL BLOCK DIAGRAM
ORDERING INFORMATION
Part No.
TC7660SCOA
TC7660SCPA
TC7660SEJA
TC7660SEOA
TC7660SEPA
TC7660SMJA
TC7660EV
Oscillator boost from 10kHz to 45kHz
Converts +5V Logic Supply to 5V System
Wide Input Voltage Range .................... 1.5V to 12V
Efficient Voltage Conversion ......................... 99.9%
Excellent Power Efficiency ............................... 98%
Low Power Supply .............................. 80 A @ 5 V
Low Cost and Easy to Use
— Only Two External Capacitors Required
Available in Small Outline (SOIC) Package
Improved ESD Protection ..................... Up to 10kV
No External Diode Required for High Voltage
Operation
BOOST
OSC
LV
DS21467A
Package
8-Pin SOIC
8-Pin Plastic DIP
8-Pin CerDIP
8-Pin SOIC
8-Pin Plastic DIP
8-Pin CerDIP
Evaluation Kit for
Charge Pump Family
1
7
6
TC7660S
OSCILLATOR
RC
REGULATOR
INTERNAL
VOLTAGE
– 55 C to +125 C
– 40 C to +85 C
– 40 C to +85 C
– 40 C to +85 C
Temperature
0 C to +70 C
0 C to +70 C
2
Range
TRANSLATOR
VOLTAGE–
IN
LEVEL
GENERAL DESCRIPTION
try standard TC7660 charge pump voltage converter. It
converts a +1.5V to +12V input to a corresponding -1.5V to
-12V output using only two low-cost capacitors, eliminating
inductors and their associated cost, size and EMI. Added
features include an extended supply range to 12V, and a
frequency boost pin for higher operating frequency, allowing
the use of smaller external capacitors.
of 10kHz. Frequency is increased to 45kHz when pin 1 is
connected to V+. Operation below 10kHz (for lower supply
current applications) is possible by connecting an external
capacitor from OSC to ground (with pin 1 open).
small outline (SOIC) packages in commercial and extended
temperature ranges.
PIN CONFIGURATION (DIP AND SOIC)
GND
Boost
CAP +
CAP –
3
GND
8
V + CAP +
The TC7660S is a pin-compatible upgrade to the Indus-
The on-board oscillator operates at a nominal frequency
The TC7660S is available in both 8-pin DIP and 8-pin
1
2
3
4
TC7660SCPA
TC7660SEJA
TC7660SEPA
2
EVALUATION
AVAILABLE
8
7
6
5
V
OSC
LOW
VOLTAGE (LV)
V OUT
KIT
+
NETWORK
LOGIC
Boost
CAP +
CAP
GND
4
5
1
2
3
4
CAP –
V OUT
TC7660SCOA
TC7660SEOA
TC7660S
8
7
6
5
TC7660S-14 9/16/96
V
OSC
LOW
VOLTAGE (LV)
V OUT
+

Related parts for TC7660SCOA

TC7660SCOA Summary of contents

Page 1

... CAP – 4 TC7660SEPA V + CAP + 8 2 VOLTAGE– 2 LEVEL TRANSLATOR INTERNAL VOLTAGE REGULATOR 3 GND EVALUATION KIT AVAILABLE TC7660S + + Boost CAP + OSC OSC LOW LOW GND 6 TC7660SCOA 6 3 VOLTAGE (LV) VOLTAGE (LV) TC7660SEOA – V OUT OUT CAP 4 4 CAP – OUT LOGIC NETWORK TC7660S-14 9/16/96 ...

Page 2

... C — 70 120 +125 C — 105 150 — — 250 — — 400 — 10 — — 99.9 — 1 — 100 © 2001 Microchip Technology Inc. Unit — kHz — — % — — — % — M — k DS21467A ...

Page 3

... C 1 TC7660S NOTE: For large values of C (>1000pF), the values OSC of C and C should be increased to 100 Figure 1. TC7660S Test Circuit © 2001 Microchip Technology Inc. DS21467A for the half and S are closed, with 4 negatively by 1 negatively such that the 1 2 The voltage regulator portion of the TC7660S is an ...

Page 4

... C resistance would be approximately OUT TC7660S "n" Figure 4. Paralleling Devices Lowers Output Impedance 4 VOLTAGE CONVERTER ). Since this capacitor is connected to the 3. serves all devices, while each device 2 . The resultant output 1 R (of TC7660S) OUT R = OUT n (number of devices © 2001 Microchip Technology Inc. DS21467A ...

Page 5

... Figure 6. In order to prevent possible device latch-up resistor must be used in series with the clock output TC7660S Figure 6. External Clocking © 2001 Microchip Technology Inc. DS21467A + 12V + Figure 5. Increased Output Voltage by Cascading Devices situation where the designer has generated the external ...

Page 6

... The TC7660S provides an inexpensive –5V source. V OUT = (See AN16 and AN17 for TC7135 interface details and – software routines VOLTAGE CONVERTER and D in Figure 9 would never turn TC7660S digit ADC operating from 5V © 2001 Microchip Technology Inc. V OUT = – OUT = ( – DS21467A ...

Page 7

... Figure 10. Positive Voltage Multiplier TYPICAL CHARACTERISTICS Unloaded Osc Freq vs. Temperature -40 - TEMPERATURE ( C) Supply Current vs. Temperature (with Boost Pin = V 1000 800 600 400 200 0 -40 - TEMPERATURE ( C) © 2001 Microchip Technology Inc. DS21467A OUT + – V – – INPUT Unloaded Osc Freq vs. Temperature 12V IN 10 ...

Page 8

... 5. - 100 8 VOLTAGE CONVERTER V = 2. TEMPERATURE ( C) Power Conversion Efficiency vs. Load Boost Pin = Open Boost Pin = V + LOAD CURRENT (mA) Supply Current vs. Temperature V = 12. 5. TEMPERATURE ( C) © 2001 Microchip Technology Inc 5. 100 80 100 DS21467A ...

Page 9

... TEMPERATURE ( C) PACKAGE DIMENSIONS .045 (1.14) .030 (0.76) .200 (5.08) .140 (3.56) .150 (3.81) .115 (2.92) .110 (2.79) .090 (2.29) © 2001 Microchip Technology Inc. DS21467A V = 12. 5. 100 8-Pin Plastic DIP PIN 1 .260 (6.60) .240 (6.10) .070 (1.78) .040 (1.02) .400 (10.16) ...

Page 10

... MAX. .010 (0.25) .050 (1.27) .004 (0.10) .016 (0.40) 10 VOLTAGE CONVERTER .320 (8.13) .290 (7.37) 3 MIN. .400 (10.16) .320 (8.13) .010 (0.25) .007 (0.18) Dimensions: inches (mm) © 2001 Microchip Technology Inc. DS21467A ...

Page 11

... 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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