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TC962_13

更新时间： 2024-11-25 12:01:59
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美国微芯 - MICROCHIP 转换器泵
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14页 398K
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High Current Charge Pump DC-to-DC Converter

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中文翻译

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TC962_13 数据手册

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TC962  
High Current Charge Pump DC-to-DC Converter  
Features:  
General Description:  
• Pin Compatible With TC7662/ICL7662/SI7661  
• High Output Current 80 mA  
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.  
• No External Diodes Required  
• Wide Operating Range 3V to 18V  
• Low Output Impedance 28Typ.  
• No Low Voltage Terminal Required  
• Application Zener On-Chip  
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  
28(with the proper capacitors), voltage conversion  
efficiency is 99.9%, and power conversion efficiency is  
97%.  
• OSC Frequency Doubling Pin Option for Smaller  
Output Capacitors  
Applications:  
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.  
• Laptop Computers  
• Disk Drives  
• Process Instrumentation  
• P-Based Controllers  
Device Selection Table  
Operating  
Temp.  
Range  
Part  
Number  
Package  
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 12 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).  
TC962COE 16-Pin SOIC Wide  
0°C to +70°C  
0°C to +70°C  
TC962CPA  
TC962EPA  
TC962IJA  
TC962MJA  
8-Pin Plastic DIP  
8-Pin Plastic DIP  
8-Pin CERDIP  
8-Pin CERDIP  
-40°C to +85°C  
-25°C to +85°C  
-55°C to +125°C  
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.  
Package Type  
16-Pin SOIC Wide  
Zener  
1
2
3
4
5
6
7
8
16  
15  
V
DD  
Cathode  
8-Pin DIP  
8-Pin CERDIP  
NC  
NC  
+
Zener  
14 C  
C
OSC  
V
1
2
3
4
8
7
6
5
DD  
•
Cathode  
NC  
GND  
NC  
13  
12  
11  
NC  
+
TC962CPA  
TC962EPA  
TC962IJA  
TC962MJA  
C
C
OSC  
TC962COE  
FREQ x 2  
NC  
GND  
FREQ x 2  
–
C
V
OUT  
–
C
10 V  
9
OUT  
NC  
NC  
2001-2012 Microchip Technology Inc.  
DS21484D-page 1  
1234567...14

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