TC962CPA Microchip Technology, TC962CPA Datasheet

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TC962CPA

Manufacturer Part Number
TC962CPA
Description
IC CHARGE PUMP DC/DC CONV 8-DIP
Manufacturer
Microchip Technology
Type
Switched Capacitor (Charge Pump), Invertingr
Datasheet

Specifications of TC962CPA

Package / Case
8-DIP (0.300", 7.62mm)
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
-3 ~ -18 V
Current - Output
80mA
Frequency - Switching
12kHz ~ 24kHz
Voltage - Input
3 ~ 18 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Power - Output
730mW
Minimum Operating Temperature
0 C
Mounting Style
Through Hole
Function
Inverting
Output Voltage
- 18 V to - 3 V
Output Current
80 mA (Max)
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
158-1143
158-1143

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TC962CPA
Manufacturer:
SONY
Quantity:
101
Part Number:
TC962CPA
Manufacturer:
MICROCHIP
Quantity:
5 510
Part Number:
TC962CPA
Manufacturer:
TELCOM
Quantity:
20 000
Features:
• Pin Compatible With TC7662/ICL7662/SI7661
• High Output Current 80 mA
• No External Diodes Required
• Wide Operating Range 3V to 18V
• Low Output Impedance 28Ω Typ.
• No Low Voltage Terminal Required
• Application Zener On-Chip
• OSC Frequency Doubling Pin Option for Smaller
Applications:
• Laptop Computers
• Disk Drives
• Process Instrumentation
• μP-Based Controllers
Device Selection Table
Package Type
© 2006 Microchip Technology Inc.
TC962COE
TC962CPA
TC962EPA
TC962IJA
TC962MJA
Output Capacitors
Number
Part
High Current Charge Pump DC-to-DC Converter
16-Pin SOIC Wide
8-Pin Plastic DIP
8-Pin Plastic DIP
Cathode
8-Pin CERDIP
8-Pin CERDIP
Zener
Package
GND
C +
C –
1
2
3
4
8-Pin CERDIP
8-Pin DIP
TC962CPA
TC962EPA
TC962MJA
TC962IJA
-55°C to +125°C
-40°C to +85°C
-25°C to +85°C
0°C to +70°C
0°C to +70°C
Operating
Range
Temp.
8
7
6
5
V
C
FREQ x 2
V
DD
OUT
OSC
Cathode
Zener
GND
NC
NC
NC
NC
C +
C –
General Description:
The TC962 is an advanced version of the industry
standard TC7662 high voltage DC-to-DC converter.
Using improved design techniques and CMOS
construction, the TC962 can source as much as 80 mA
versus the 7662’s 20 mA capability.
As an inverter, the TC962 can put out voltages as high
as 18V and as low as 3V without the need for external
diodes. The output impedance of the device is a low
28Ω (with the proper capacitors), voltage conversion
efficiency is 99.9%, and power conversion efficiency is
97%.
The low voltage terminal (pin 6) required in some
TC7662 applications has been eliminated. Grounding
this terminal will double the oscillator frequency from 12
kHz to 24 kHz. This will allow the use of smaller
capacitors for the same output current and ripple, in
most applications. Only two external capacitors are
required for inverter applications. In the event an
external clock is needed to drive the TC962 (such as
paralleling), driving this pin directly will cause the
internal oscillator to sync to the external clock.
Pin 1, which is used as a test pin on the 7662, is a
voltage reference Zener on the TC962. This Zener (6.4V
at 5 mA) has a dynamic impedance of 12Ω and is
intended for use where the TC962 is supplying current to
external regulator circuitry and a reference is needed for
the regulator circuit. (See Section 3.0 “Applications
Information” Applications Information).
The TC962 is compatible with the LTC1044, SI7661
and ICL7662. It should be used in designs that require
greater power and/or less input to output voltage drop.
It offers superior performance over the ICL7660S.
2
3
4
5
6
7
8
1
16-Pin SOIC Wide
TC962COE
16
15
14
13
12
11
10
9
TC962
V
NC
C
NC
FREQ x 2
NC
V
NC
DD
OUT
OSC
DS21484C-page 1

Related parts for TC962CPA

TC962CPA Summary of contents

Page 1

... TC962MJA 8-Pin CERDIP -55°C to +125°C Package Type 8-Pin DIP 8-Pin CERDIP Zener 1 • Cathode C + TC962CPA 2 TC962EPA 3 GND TC962IJA C – 4 TC962MJA © 2006 Microchip Technology Inc. General Description: The TC962 is an advanced version of the industry standard TC7662 high voltage DC-to-DC converter. ...

Page 2

... OSC/C Timing + F/F C – Comparator with Hysteresis 1 Zener Cathode 6.4V DS21484C-page 2 Level Shift Q Q Level Shift V REF Level Shift Level Shift TC962 P SW1 2 + CAP + N SW4 C P External 3 GND + OUT SW2 EXT 4 – CAP SW3 5 V OUT © 2006 Microchip Technology Inc. ...

Page 3

... Note 1: Connecting any input terminal to voltages greater than V inputs from sources operating from external supplies be applied prior to “power-up” of the TC962. © 2006 Microchip Technology Inc. *Stresses above Maximum Ratings” may cause permanent damage to the device. These are stress ratings only and functional ...

Page 4

... Positive side of external CP capacitor (pump cap connect. 5 GND Ground terminal connect Negative side of external CP capacitor (pump cap connect connect Output voltage. OUT connect. 12 FREQ grounded, frequency doubles connect Capacitor to GND will decrease frequency. OSC connect Input voltage. DD DS21484C-page 4 Description Description © 2006 Microchip Technology Inc. ...

Page 5

... FIGURE 3-2: Typical Applications © 2006 Microchip Technology Inc. current source and double the frequency. This will double the charge current going into the internal capacitor, as well as any capacitor added to pin 7. A Zener diode has been added to the TC962 for use as a reference in building external regulators ...

Page 6

... ZENER VOLTAGE (V) Frequency vs. Temperature FREQ OPEN OSC -60 -40 - 100 120 140 TEMPERATURE (°C) Power Conversion Efficiency vs. I LOAD T = +25°C A 150 135 EFFICIENCY 120 105 SUPPLY 90 CURRENT LOAD CURRENT (mA) © 2006 Microchip Technology Inc. ...

Page 7

... CDIP (Narrow) .055 (1.40) Max. .200 (5.08) .160 (4.06) .200 (5.08) .125 (3.18) .065 (1.65) .045 (1.14) © 2006 Microchip Technology Inc. User Direction of Feed P Standard Reel Component Orientation for 713 Suffix Device Carrier Width (W) Pitch (P) Part Per Full Reel ...

Page 8

... Max. .012 (0.30) .004 (0.10) .050 (1.27) .016 (0.40) Dimensions: inches (mm) .310 (7.87) .290 (7.37) 3° Min. .400 (10.16) .310 (7.87) Dimensions: inches (mm) .013 (0.33) .009 (0.23) © 2006 Microchip Technology Inc. ...

Page 9

... To register, access the Microchip web site at www.microchip.com, click on Customer Change Notification and follow the registration instructions. © 2006 Microchip Technology Inc. CUSTOMER SUPPORT Users of Microchip products can receive assistance through several channels: • Distributor or Representative • ...

Page 10

... What deletions from the document could be made without affecting the overall usefulness there any incorrect or misleading information (what and where)? 7. How would you improve this document? DS21484C-page 10 Total Pages Sent ________ FAX: (______) _________ - _________ N Literature Number: DS21484C © 2006 Microchip Technology Inc. ...

Page 11

... PowerMate, PowerTool, REAL ICE, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel, Total Endurance, UNI/O, 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 12

... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2006 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-3910 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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