TC7662BEOA Microchip Technology, TC7662BEOA Datasheet

no-image

TC7662BEOA

Manufacturer Part Number
TC7662BEOA
Description
IC CHARGE PUMP DC/DC CONV 8-SOIC
Manufacturer
Microchip Technology
Type
Switched Capacitor (Charge Pump), Invertingr
Datasheets

Specifications of TC7662BEOA

Package / Case
8-SOIC (3.9mm Width)
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
-1.5 ~ -15 V
Current - Output
20mA
Frequency - Switching
10kHz ~ 35kHz
Voltage - Input
1.5 ~ 15 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Power - Output
470mW
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Function
Inverting
Output Voltage
- 15 V to - 1.5 V
Output Current
20 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
158-1060
158-1060

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TC7662BEOA
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Part Number:
TC7662BEOA713
Manufacturer:
MICROCHIP
Quantity:
12 000
Part Number:
TC7662BEOA713
0
CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
FUNCTIONAL BLOCK DIAGRAM
© 2001 Microchip Technology Inc.
FEATURES
APPLICATIONS
PIN CONFIGURATION (DIP AND SOIC)
BOOST
CAP +
CAP –
GND
Wide Operating Voltage Range: 1.5V to 15V
Boost Pin (Pin 1) for Higher Switching Frequency
High Power Efficiency is 96%
Easy to Use – Requires Only 2 External Non-Critical
Passive Components
Improved Direct Replacement for Industry Stan-
dard ICL7660 and Other Second Source Devices
Simple Conversion of +5V to 5V Supplies
Voltage Multiplication V
Negative Supplies for Data Acquisition Systems
and Instrumentation
RS232 Power Supplies
Supply Splitter, V
1
2
3
4
TC7662BCPA
TC7662BEPA
BOOST
OSC
LV
8
7
6
5
V
OSC
LOW
VOLTAGE (LV)
V OUT
+
1
7
6
DS21469A
OUT
TC7662B
OSCILLATOR
= V
RC
BOOST
OUT
CAP +
CAP –
GND
S
/2
REGULATOR
= nV
INTERNAL
VOLTAGE
1
2
3
4
TC7662BCOA
TC7662BEOA
IN
2
8
7
6
5
V
OSC
LOW
VOLTAGE (LV)
V OUT
+
TRANSLATOR
VOLTAGE–
LEVEL
GND
GENERAL DESCRIPTION
try standard TC7660 charge pump voltage converter. It
converts a +1.5V to +15V input to a corresponding – 1.5 to
– 15V output using only two low-cost capacitors, eliminating
inductors and their associated cost, size and EMI.
quency of 10kHz. Frequency is increased to 35kHz when
pin 1 is connected to V
capacitors. Operation below 10kHz (for lower supply current
applications) is also possible by connecting an external
capacitor from OSC to ground (with pin 1 open).
small outline (SO) packages in commercial and extended
temperature ranges.
ORDERING INFORMATION
Part No.
TC7662BCOA
TC7662BCPA
TC7662BEOA
TC7662BEPA
TC7660EV
3
8
V + CAP +
The TC7662B is a pin-compatible upgrade to the Indus-
The on-board oscillator operates at a nominal fre-
The TC7662B is available in both 8-pin DIP and 8-pin
2
EVALUATION
AVAILABLE
KIT
NETWORK
LOGIC
+
Package
8-Pin SOIC
8-Pin Plastic DIP
8-Pin SOIC
8-Pin Plastic DIP
Evaluation Kit for
Charge Pump Family
, allowing the use of smaller external
4
5
CAP –
V OUT
TC7662B
– 40 C to +85 C
– 40 C to +85 C
Temperature
0 C to +70 C
0 C to +70 C
Range
TC7662B-8 9/11/96

Related parts for TC7662BEOA

TC7662BEOA Summary of contents

Page 1

... ORDERING INFORMATION Part No. TC7662BCOA TC7662BCPA + TC7662BEOA 2 7 OSC TC7662BEPA LOW TC7662BCOA 3 6 VOLTAGE (LV) TC7662BEOA TC7660EV OUT V + CAP + 8 VOLTAGE– 2 LEVEL TRANSLATOR INTERNAL VOLTAGE 3 GND EVALUATION KIT AVAILABLE TC7662B + , allowing the use of smaller external ...

Page 2

... C — — A +125 C — — A — — — — — — 99.9 — 1 — 100 © 2001 Microchip Technology Inc. Max Unit 160 A 180 A 180 A 200 A 300 A 350 400 15 V 3.5 V 100 120 150 250 300 400 — kHz — ...

Page 3

... OSC of C and C should be increased to 100 µ Figure 1. TC7662B Test Circuit © 2001 Microchip Technology Inc. DS21469A THEORETICAL POWER EFFICIENCY CONSIDERATIONS In theory, a voltage converter can approach 100% efficiency if certain conditions are met: A. The drive circuitry consumes minimal power. B. The output switches have extremely low ON resistance and virtually no offset ...

Page 4

... The magnitude of this 2 , hence the total drop OUT volts. Segment B is the voltage change across C , the half of the cycle when volts. The peak-to- OUT ESR OUT PUMP Figure 4. Output Ripple © 2001 Microchip Technology Inc. > OSC + ESR term OUT 2 supplies current ) DS21469A ...

Page 5

... F *V OUT = – Figure 6. Cascading Devices for Increased Output Voltage © 2001 Microchip Technology Inc. DS21469A Changing the TC7662B Oscillator Frequency It may be desirable in some applications (due to noise or other considerations) to increase the oscillator frequency. This is achieved by one of several methods described below: . The resultant output ...

Page 6

... OUT = – OUT = V + –V – and CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER TC7662B OUT = – TC7662B Figure 11. Splitting a Supply in Half © 2001 Microchip Technology Inc. V OUT = – – – DS21469A ...

Page 7

... TC7662B 100 800k 250K VOLTAGE ADJUST Figure 12. Regulating the Output Voltage © 2001 Microchip Technology Inc. DS21469A TTL DATA INPUT – 4 Figure 13. RS232 Levels from a Single 5V Supply – OUT 100 F 7 ...

Page 8

... CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER Voltage Conversion INPUT VOLTAGE -40 - TEMPERATURE ( C) Supply Current vs. Temperature V = 12. 5.5V IN -40 - TEMPERATURE ( C) © 2001 Microchip Technology Inc. Without Load 10K Load 5. 100 60 80 100 DS21469A ...

Page 9

... Unloaded Osc Freq vs. Temperature -40 - 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. DS21469A 12V 100 -40 8-Pin Plastic DIP PIN 1 .260 (6.60) .240 (6.10) .070 (1.78) ...

Page 10

... TC7662B-8 9/11/96 8-Pin SOIC .157 (3.99) .244 (6.20) .150 (3.81) .228 (5.79) .069 (1.75) .053 (1.35) 8 MAX. .010 (0.25) .050 (1.27) .004 (0.10) .016 (0.40) 10 CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER .010 (0.25) .007 (0.18) Dimensions: inches (mm) © 2001 Microchip Technology Inc. DS21469A ...

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. ...

Related keywords