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參數(shù)資料
| 型號(hào)： | ICL7662 |
| 廠商： | Intersil Corporation |
| 英文描述： | CMOS Voltage Converters(CMOS電壓變換器) |
| 中文描述： | CMOS、電壓變換器 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大小： | 88K |
| 代理商： | ICL7662 |
3-45
File Number
3181.3
ICL7662
CMOS Voltage Converter
The Intersil ICL7662 is a monolithic high-voltage CMOS
power supply circuit which offers unique performance ad-
vantages over previously available devices. The ICL7662
performs supply voltage conversion from positive to negative
for an input range of +4.5V to +20.0V, resulting in
complementary output voltages of -4.5V to -20V. Only 2
noncritical external capacitors are needed for the charge
pump and charge reservoir functions. The ICL7662 can also
function as a voltage doubler, and will generate output
voltages up to +38.6V with a +20V input.
Contained on chip are a series DC power supply regulator,
RC oscillator, voltage level translator, 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.
The oscillator, when unloaded, oscillates at a nominal
frequency of 10kHz for an input supply voltage of 15.0V. 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.
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 (+10V to +20V), the
LV pin is left floating to prevent device latchup.
Features
No External Diode Needed Over Entire Temperature
Range
Pin Compatible With ICL7660
Simple Conversion of +15V Supply to -15V Supply
Simple Voltage Multiplication (V
OUT
= (-)nV
IN
)
99.9% Typical Open Circuit Voltage Conversion
Efficiency
96% Typical Power Efficiency
Wide Operating Voltage Range 4.5V to 20.0V
Easy to Use - Requires Only 2 External Non-Critical
Passive Components
Applications
On Board Negative Supply for Dynamic RAMs
Localized
μ
Processor (8080 Type) Negative Supplies
Inexpensive Negative Supplies
Data Acquisition Systems
Up to -20V for Op Amps
Pinouts
ICL7662CBD-0 (SOIC)
TOP VIEW
ICL7662CBD AND IBD (SOIC)
TOP VIEW
ICL7662 (CAN)
TOP VIEW
ICL7662 (PDIP)
TOP VIEW
TEST
NC
CAP+
NC
GND
NC
CAP-
V+
OSC
NC
LV
NC
NC
V
OUT
1
2
3
4
5
6
7
14
13
12
11
10
9
8
NC
TEST
NC
CAP+
GND
NC
NC
V+
NC
OSC
LV
NC
V
OUT
CAP-
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V+
LV
CAP+
TEST
GND
OSC
V
OUT
2
4
6
1
3
7
5
8
TEST
CAP+
GND
CAP-
1
2
3
4
8
7
6
5
V+
OSC
LV
V
OUT
Data Sheet
April 1999
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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICL7662 WAF | 制造商:Harris Corporation 功能描述: |
| ICL7662CBA | 功能描述:電荷泵 CMOS Voltage Converter RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| ICL7662CBA+ | 功能描述:電荷泵 CMOS Voltage Converter RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| ICL7662CBA+T | 功能描述:電荷泵 CMOS Voltage Converter RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| ICL7662CBA-T | 功能描述:電荷泵 CMOS Voltage Converter RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
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