Image ICL7660
型号: ICL7660
厂商: Intersil Corporation Intersil Corporation
分类: 半导体
描述: cmos voltage converters
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ICL7660, ICL7660A  
Data Sheet  
April 1999  
File Number 3072.4  
CMOS Voltage Converters  
Features  
The Intersil ICL7660 and ICL7660A are monolithic CMOS  
power supply circuits which offer unique performance  
advantages over previously available devices. The ICL7660  
performs supply voltage conversions from positive to  
negative for an input range of +1.5V to +10.0V resulting in  
complementary output voltages of -1.5V to -10.0V and the  
ICL7660A does the same conversions with an input range of  
+1.5V to +12.0V resulting in complementary output voltages  
of -1.5V to -12.0V. Only 2 noncritical external capacitors are  
needed for the charge pump and charge reservoir functions.  
The ICL7660 and ICL7660A can also be connected to  
function as voltage doublers and will generate output  
voltages up to +18.6V with a +10V input.  
• Simple Conversion of +5V Logic Supply to ±5V Supplies  
• Simple Voltage Multiplication (V = (-) nV  
)
IN  
OUT  
Typical Open Circuit Voltage Conversion Efficiency 99.9%  
Typical Power Efficiency 98%  
• Wide Operating Voltage Range  
- ICL7660 . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5V to 10.0V  
- ICL7660A . . . . . . . . . . . . . . . . . . . . . . . . . 1.5V to 12.0V  
• ICL7660A 100% Tested at 3V  
• Easy to Use - Requires Only 2 External Non-Critical  
Passive Components  
• No External Diode Over Full Temp. and Voltage Range  
Contained on the chip are a series DC supply regulator, RC  
oscillator, voltage level translator, and four output power  
MOS switches. A unique logic element senses the most  
negative voltage in the device and ensures that the output N-  
Channel switch source-substrate junctions are not forward  
biased. This assures latchup free operation.  
Applications  
• On Board Negative Supply for Dynamic RAMs  
• Localized µProcessor (8080 Type) Negative Supplies  
• Inexpensive Negative Supplies  
The oscillator, when unloaded, oscillates at a nominal  
frequency of 10kHz for an input supply voltage of 5.0V. This  
frequency can be lowered by the addition of an external  
capacitor to the “OSC” terminal, or the oscillator may be  
overdriven by an external clock.  
• Data Acquisition Systems  
Pinouts  
ICL7660, ICL7660A (PDIP, SOIC)  
TOP VIEW  
The “LV” terminal may be tied to GROUND to bypass the  
internal series regulator and improve low voltage (LV)  
operation. At medium to high voltages (+3.5V to +10.0V for  
the ICL7660 and +3.5V to +12.0V for the ICL7660A), the LV  
pin is left floating to prevent device latchup.  
NC  
CAP+  
GND  
1
2
3
4
8
7
6
5
V+  
OSC  
LV  
Ordering Information  
CAP-  
V
OUT  
TEMP.  
RANGE ( C)  
PKG.  
NO.  
o
PART NO.  
ICL7660CBA  
ICL7660CBA-T  
PACKAGE  
8 Ld SOIC (N)  
ICL7660 (METAL CAN)  
0 to 70  
M8.15  
M8.15  
TOP VIEW  
0 to 70  
8 Ld SOIC (N)  
Tape and Reel  
V+ (AND CASE)  
8
ICL7660CPA  
0 to 70  
0 to 70  
0 to 70  
0 to 70  
8 Ld PDIP  
E8.3  
NC  
1
3
7
OSC  
ICL7660MTV  
ICL7660ACBA  
ICL7660ACBA-T  
8 Pin Metal Can  
8 Ld SOIC (N)  
T8.C  
2
6
LV  
CAP+  
M8.15  
M8.15  
8 Ld SOIC (N)  
Tape and Reel  
5
V
GND  
OUT  
4
ICL7660ACPA  
ICL7660AIBA  
ICL7660AIBA-T  
0 to 70  
8 Ld PDIP  
E8.3  
CAP-  
-40 to 85 8 Ld SOIC (N)  
M8.15  
M8.15  
-40 to 85 8 Ld SOIC (N)  
Tape and Reel  
ICL7660AIPA  
-40 to 85 8 Ld PDIP  
E8.3  
Add /883B to part number if 883B processing is required.  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999  
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