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PDF MAX660 Data sheet ( Hoja de datos )

Número de pieza MAX660
Descripción CMOS Monolithic Voltage Converter
Fabricantes Maxim Integrated　
Logotipo Maxim Integrated Logotipo



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No Preview Available ! MAX660 Hoja de datos, Descripción, Manual

19-3293; Rev. 2; 9/96
CMOS Monolithic Voltage Converter
_______________General Description
The MAX660 monolithic, charge-pump voltage inverter
converts a +1.5V to +5.5V input to a corresponding
-1.5V to -5.5V output. Using only two low-cost
capacitors, the charge pump’s 100mA output replaces
switching regulators, eliminating inductors and their
associated cost, size, and EMI. Greater than 90%
efficiency over most of its load-current range combined
with a typical operating current of only 120µA provides
ideal performance for both battery-powered and board-
level voltage conversion applications. The MAX660 can
also double the output voltage of an input power supply
or battery, providing +9.35V at 100mA from a +5V
input.
A frequency control (FC) pin selects either 10kHz typ or
80kHz typ (40kHz min) operation to optimize capacitor
size and quiescent current. The oscillator frequency
can also be adjusted with an external capacitor or
driven with an external clock. The MAX660 is a pin-
compatible, high-current upgrade of the ICL7660.
The MAX660 is available in both 8-pin DIP and small-
outline packages in commercial, extended, and military
temperature ranges.
For 50mA applications, consider the MAX860/MAX861
pin-compatible devices (also available in ultra-small
µMAX packages).
________________________Applications
Laptop Computers
Medical Instruments
Interface Power Supplies
Hand-Held Instruments
Operational-Amplifier Power Supplies
__________________Pin Configuration
TOP VIEW
FC 1
CAP+ 2
GND 3
CAP- 4
MAX660
DIP/SO
8 V+
7 OSC
6 LV
5 OUT
___________________________ Features
® Small Capacitors
® 0.65V Typ Loss at 100mA Load
® Low 120µA Operating Current
® 6.5Ω Typ Output Impedance
® Guaranteed ROUT < 15W for C1 = C2 = 10mF
® Pin-Compatible High-Current ICL7660 Upgrade
® Inverts or Doubles Input Supply Voltage
® Selectable Oscillator Frequency: 10kHz/80kHz
® 88% Typ Conversion Efficiency at 100mA
(IL to GND)
______________Ordering Information
PART
TEMP. RANGE
MAX660CPA
0°C to +70°C
MAX660CSA
0°C to +70°C
MAX660C/D
0°C to +70°C
MAX660EPA
-40°C to +85°C
MAX660ESA
-40°C to +85°C
MAX660MJA
-55°C to +125°C
*Contact factory for dice specifications.
PIN-PACKAGE
8 Plastic DIP
8 SO
Dice*
8 Plastic DIP
8 SO
8 CERDIP
_________Typical Operating Circuits
C1
1µF to 150µF
C1
1µF to 150µF
+VIN
2.5V TO 5.5V
1 FC
+VIN
1.5V TO 5.5V
V+ 8
2 CAP+ MAX660 OSC 7
3 GND
4
CAP-
LV 6
OUT 5
VOLTAGE INVERTER
INVERTED
NEGATIVE
VOLTAGE
OUTPUT
C2
1µF to 150µF
1 FC
V+ 8
2 CAP+ MAX660 OSC 7
3 GND
LV 6
4 CAP-
5
OUT
DOUBLED
POSITIVE
VOLTAGE
OUTPUT
C2
1µF to 150µF
POSITIVE VOLTAGE DOUBLER
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800

1 page




MAX660 pdf
CMOS Monolithic Voltage Converter
OUTPUT CURRENT vs. CAPACITANCE:
VIN = +4.5V, VOUT = -4V
120
FC = V+
100 OSC = OPEN
80
60
40
20
0
0.33 1.0 2.0 2.2 4.7 10 22 47 100 220
CAPACITANCE (µF)
OUTPUT CURRENT vs. CAPACITANCE:
60 VIN = +3.0V, VOUT = -2.7V
FC = V+
50 OSC = OPEN
40
30
20
10
0
0.33 1.0 2.0 2.2 4.7 10 22 47 100 220
CAPACITANCE (µF)
OUTPUT CURRENT vs. CAPACITANCE:
VIN = +4.5V, VOUT = -3.5V
250
200
FC = V+
OSC = OPEN
150
100
50
0
0.33 1.0 2.0 2.2 4.7 10 22 47 100 220
CAPACITANCE (µF)
OUTPUT CURRENT vs. CAPACITANCE:
VIN = +3.0V, VOUT = -2.4V
120
FC = V+
100 OSC = OPEN
80
60
40
20
0
0.33 1.0 2.0 2.2 4.7 10 22 47 100 220
CAPACITANCE (µF)
______________________________________________________________Pin Description
PIN NAME
NAME
INVERTER
FUNCTION
DOUBLER
Frequency Control for internal oscillator, FC = open,
1 FC fOSC = 10kHz typ; FC = V+, fOSC = 80kHz typ (40kHz min), Same as Inverter
FC has no effect when OSC pin is driven externally.
2 CAP+ Charge-Pump Capacitor, Positive Terminal
3
GND
Power-Supply Ground Input
Same as Inverter
Power-Supply Positive Voltage Input
4 CAP- Charge-Pump Capacitor, Negative Terminal
Same as Inverter
5
OUT
Output, Negative Voltage
Power-Supply Ground Input
Low-Voltage Operation Input. Tie LV to GND when input
6
LV
voltage is less than 3V. Above 3V, LV may be connected to
GND or left open; when overdriving OSC, LV must be
LV must be tied to OUT for all input
voltages.
connected to GND.
Oscillator Control Input. OSC is connected to an internal
7
OSC
15pF capacitor. An external capacitor can be added to slow Same as Inverter; however, do not over-
the oscillator. Take care to minimize stray capacitance. An drive OSC in voltage-doubling mode.
external oscillator may also be connected to overdrive OSC.
8 V+ Power-Supply Positive Voltage Input
Positive Voltage Output
_______________________________________________________________________________________ 5

5 Page





MAX660 arduino
CMOS Monolithic Voltage Converter
________________________________________________________Package Information
A A2
L A1
e
D1
D
B
D
e
B
A
A1
A3
B1
E
E1
0° - 15°
C
eA
eB
Plastic DIP
PLASTIC
DUAL-IN-LINE
PACKAGE
(0.300 in.)
INCHES
DIM
MIN MAX
A – 0.200
A1 0.015
–
A2 0.125 0.175
A3 0.055 0.080
B 0.016 0.022
B1 0.045 0.065
C 0.008 0.012
D1 0.005 0.080
E 0.300 0.325
E1 0.240 0.310
e 0.100
–
eA 0.300
–
eB –
0.400
L 0.115 0.150
MILLIMETERS
MIN MAX
– 5.08
0.38 –
3.18 4.45
1.40 2.03
0.41 0.56
1.14 1.65
0.20 0.30
0.13 2.03
7.62 8.26
6.10 7.87
2.54 –
7.62 –
– 10.16
2.92 3.81
PKG. DIM
PD
PD
PD
PD
PD
ND
INCHES
PINS MIN MAX
8 0.348 0.390
14 0.735 0.765
16 0.745 0.765
18 0.885 0.915
20 1.015 1.045
24 1.14 1.265
MILLIMETERS
MIN MAX
8.84 9.91
18.67 19.43
18.92 19.43
22.48 23.24
25.78 26.54
28.96 32.13
21-0043A
0.101mm
0.004in.
C
INCHES
DIM
MIN MAX
MILLIMETERS
MIN MAX
A 0.053 0.069 1.35 1.75
A1 0.004 0.010 0.10 0.25
0°-8°
B 0.014 0.019
C 0.007 0.010
0.35
0.19
0.49
0.25
E 0.150 0.157 3.80 4.00
e 0.050
1.27
H 0.228 0.244 5.80 6.20
L L 0.016 0.050 0.40 1.27
EH
Narrow SO
SMALL-OUTLINE
PACKAGE
(0.150 in.)
INCHES MILLIMETERS
DIM PINS
MIN MAX MIN MAX
D 8 0.189 0.197 4.80 5.00
D 14 0.337 0.344 8.55 8.75
D 16 0.386 0.394 9.80 10.00
21-0041A
______________________________________________________________________________________ 11

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