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SI7661CSA-SI7661DJ
CMOS voltage converter
19-1292; Rev 2; 7/96
fE/U/JJ Diet fl AVE
CMQS Voltage Calm viewers
______ General Description Features
J2, ICL7662/Si7E61 is a monolithic charge pump 0 +4.5V to +20V Supply to -4.5V to -20V Output
vo tage inverter t at will convert a positive voltage in = -
the range of +4.5V to +2OV to the corresponding t Cascaded Voltage Multlpllcatlon fVour n x W)
negatcijve voltgge of 2i51/, to -20V. The ICL7662/Si7661 0 99.7% Typlcal Open Circuit Conversion Effieleney
provi es pe ormance ar superior to previous imple-
mentations of charge pump voltage inverters by . Requires Only 2 External Capacitors
combining low quiescent current with high efficiency. 0 Pin Compatible with the 1CL7660
The lCL7662/Si7661 has an oscillator, control circuitry, " .
and 4 power MOS switches on-chip, with the only Ordering Information
required external components being two low cost
capacitors. PART TEMP. RANGE PIN-PACKAGE
Applications ICL7662CPA 0°C to +70°C 8 Plastic DIP
Inexpensive Negative Supplies ICL7662CBD 0°C to +7000 14 so
Data Ac isition S st m ICL7662CBA O°Cto +70°C 880
qu t y e s ICL7662C/D 0°C to +70°C Dice
g 2.g20V for Op Amps, and Other Linear ICL7662EPA -40°C to +85°C 8 Plastic DIP
Ircut s ' ICL7662EBD -4CY'C to +85''C 14 so
Supply Splitter, Vow = Vs/2 ICL7662EBA -40°c to +85°C 8 so
RS-232 Power Supplies ICL7662MTV-4 -55''C to +125°C 8 TO-99
ICL7662MJA -5ly'C to +125°C 8 CERDIP
Pin Configurations Ordering Information continued at end of data sheet.
Top View
TEST I: dt V Ew
CAP+E 72:36]: Eosc
GROUNDE Si7661 E LV Wpical Operating Circuit
CAP- E El VOUT
V+ (and CASE)
ICL7662 1 I
Si7661 1 0 EJ
2 7 NEGATIVE
i; ICL7662 El VOLTAGE
C1 - .5‘E Si7661 E OUTPUT
4 Er-tr-o
me E v* - Ct
TEST Ci N.C. It
no El OSC -
CAP' rt LV
GND [3 N.C.
N.c. E k Pour
MC. , I CAP- Negative Voltage Converter
MAXIM Maxim Integrated Products 1
& the latest literature: http://www.maxim-Ic.com, .
For small orders, phone 1-800-835-8769.
£991!$/ Z 991 775W
flClL 7662/$i76617
CMO5 Voltage Con verters
ABSOLUTE MAXIMUM RATINGS
V+ TO GND .............................................................. -0.3V, +22V
Oscillator Input to GND (Note 1)
(V- < 12V) .r_.t.tr.F.._r._m......FFrt....F't.F..........FF...FF.. -0.3V, V+ + (LY/
(V+ > 12V) _...............-..-.......- V+ - 12.3V, V+ + 0.3V
Power Dissipation (Note 2)
Plastic DIP .................................................................... 300mW
...500mW
...t ...500mW
CERDIP ........................................................................ 500mW
Operating Temperature Ranges
Commercial (ICL7662C_, Si7661C_) .................. 0°C to +70°C
Extended (ICL7662E_, Si7661D_ or ESA) ..... -40°C to +85°C
Military (ICL7662MTV/MJA,
Si7661AA/AK) ............................................ -55''C to +125°C
Storage Temperature PFW.........'......''.......'.'''........ -65°C to +160°C
Lead Temperature (soldering, 10sec) ....._r._m.wwr__r_e.P.F.Fr... +300°C
Stresses above those listed under "Absolute Maximum Ratirys" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other con
itians above those indicated In the operational sections of the specifications is not
implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS: ICL7662
(V+ = +15V, TA = +25°C. Cosc = o, unless otherwise noted. See Test Cuircuit Figure 1.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage Range-Lo V+ L RL = 10kn, LV = GND AMY'C < TA < +125°C 4.5 11
-40''C < TA <+85°C 9 20 V
lvl/ol R -Hi VH R=1kQ,LV=Oe
Supply oltage ange , + L O p n -55°C < TA< +125°C 9 16.5
TA = +2500 0.25 0.60
Supply Current I+ RL = co, LV = Open 0°C < TA <+70°C 0.30 0.85 mA
-55°C < TA < +125°C 0.40 1.0
TA = +25%: 60 100
Output Source Resistance Ro Io = 20mA, LV = Open 0°C < TA <+70°C 70 120 n
-55°C < TA < +125°C 90 150
v 5V TA = AYPC 20 150
+ = I O 0
Supply Current I+ RL = on, LV = GND 0 C < TA <+70 C 25 200 uA
-55°C < TA < +125°C 30 250
v 5V TA = +25°C 125 200
. + = I o 0
Output Source Resistance Ro lo = 3mA, LV = GND 0 C < TA <+7O C 150 250 n
-55''C < TA < +125°C 200 350
Oscillator Frequency fosc 10 kHz
' . T = +25°C 93 96
P f P _ A °
ower E Mienoy eff RL 2kf2 Min < TA < Max 90 95 /0
Voltage Conversion . a
Efficiency Voiy RL - oc Min < TA < Max 97 99.9 /o
Oscillator Sink or Source l V+ = 5V (VOSC = 0V to +5V) 0.5 IsA
Current OSC V+ = 15V (VOSC = +5V to +15V) 4.0
Note 1:
Connecting any terminal to voltages greater than V+ or less than ground may cause destructive latchup. It is recommended
that no input from sources operating from external supplies be applied prior to power-up of the ICL7662.
Note 2: Derate linearly above +50°C by 5.5mW/°C.
Note St Pin 1 is a test pin and is not connected in normal use,
IVI A X I All
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