RENESAS ICL7660SCBA Datasheet

DATASHEET

BOOST

CAP+

GND

CAP-

1

2

3

4

8

7

6

5

V+

OSC

LV

V

OUT

NC

CAP+

GND

CAP-

1

2

3

4

8

7

6

5

V+

OSC

LV

V

OUT

ICL7660S, ICL7660A

Super Voltage Converters

The ICL7660S and ICL7660A Super Voltage Converters are
monolithic CMOS voltage conversion ICs that guarantee
significant performance advantages over other similar
devices. They are direct replacements for the industry
standard ICL7660 offering an extended operating supply
voltage range up to 12V, with lower supply current. A
Frequency Boost pin has been incorporated to enable the
user to achieve lower output impedance despite using smaller
capacitors. All improvements are highlighted in the “Electrical
Specifications” section on page 3. Critical parameters are

guaranteed over the entire commercial and industrial
temperature ranges.

The ICL7660S and ICL7660A perform supply voltage
conversions from positive to negative for an input range of

1.5V to 12V, resulting in complementary output voltages of

-1.5V to -12V. Only two non-critical external capacitors are
needed, for the charge pump and charge reservoir functions.
The ICL7660S and ICL7660A can be connected to function
as a voltage doubler and will generate up to 22.8V with a
12V input. They can also be used as a voltage multipliers or
voltage dividers.

Each chip contains a series DC power supply regulator, RC
oscillator, voltage level translator, and four output power
MOS switches. 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 over-driven by an external clock.

The “LV” terminal may be tied to GND to bypass the internal
series regulator and improve low voltage (LV) operation. At
medium to high voltages (3.5V to 12V), the LV pin is left
floating to prevent device latchup.

FN3179

Rev 7.00

January 23, 2013

Features

• Guaranteed Lower Max Supply Current for All
Temperature Ranges

• Wide Operating Voltage Range: 1.5V to 12V

• 100% Tested at 3V

• Boost Pin (Pin 1) for Higher Switching Frequency

• Guaranteed Minimum Power Efficiency of 96%

• Improved Minimum Open Circuit Voltage Conversion
Efficiency of 99%

• Improved SCR Latchup Protection

• Simple Conversion of +5V Logic Supply to ±5V Supplies

• Simple Voltage Multiplication V

OUT

= (-)nV

IN

• Easy to Use; Requires Only Two External Non-Critical
Passive Components

• Improved Direct Replacement for Industry Standard
ICL7660 and Other Second Source Devices

• Pb-Free Available (RoHS Compliant)

Applications

• Simple Conversion of +5V to ±5V Supplies

• Voltage Multiplication V

• Negative Supplies for Data Acquisition Systems and
Instrumentation

• RS232 Power Supplies

• Supply Splitter, V

OUT

OUT

= ±V

= ±nV

S

IN

In some applications, an external Schottky diode from V

OUT

to CAP- is needed to guarantee latchup free operation (see
Do’s and Dont’s section on page 8).

Pin Configurations

ICL7660S

(8 LD PDIP, SOIC)

TOP VIEW

FN3179 Rev 7.00 Page 1 of 13
January 23, 2013

ICL7660A

(8 LD PDIP, SOIC)

TOP VIEW

ICL7660S, ICL7660A

Ordering Information

PART NUMBER

(NOTE 3) PART MARKING

ICL7660SCBA (Note 1) 7660 SCBA 0

ICL7660SCBAZ
(Notes 1, 2)

ICL7660SCPA 7660S CPA 0

ICL7660SCPAZ (Note 2) 7660S CPAZ 0

ICL7660SIBA (Note 1) 7660 SIBA -40

ICL7660SIBAZ
(Notes 1, 2)

ICL7660SIPA 7660 SIPA -40

ICL7660SIPAZ
(Note 2)

ICL7660ACBA (Note 1) 7660ACBA 0 to 70 8 Ld SOIC (N) M8.15

ICL7660ACBAZA
(Notes 1, 2)

ICL7660ACPA 7660ACPA 0 to 70 8 Ld PDIP E8.3

ICL7660ACPAZ (Note 2) 7660ACPAZ 0 to 70 8 Ld PDIP (Pb-free; Note 4) E8.3

ICL7660AIBA (Note 1) 7660AIBA -40 to 85 8 Ld SOIC (N) M8.15

ICL7660AIBAZA
(Notes 1, 2)

NOTES:

1. Add “-T*” suffix for tape and reel. Please refer to TB347

2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil
Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.

3. For Moisture Sensitivity Level (MSL), please see device information page for ICL7660S
Te ch B ri e f TB363

4. Pb-free PDIPs can be used for through-hole wave solder processing only. They are not intended for use in reflow solder processing applications.

7660 SCBAZ 0

7660 SIBAZ -40

7660S IPAZ -40

7660ACBAZ 0 to 70 8 Ld SOIC (N) (Pb-free) M8.15

7660AIBAZ -40 to 85 8 Ld SOIC (N) (Pb-free) M8.15

.

TEMP. RANGE

(°C) PACKAGE PKG. DWG. #

to +70 8 Ld SOIC M8.15

to +70 8 Ld SOIC (Pb-free) M8.15

to +70 8 Ld PDIP E8.3

to +70 8 Ld PDIP (Pb-free; Note 4) E8.3

to +85 8 Ld SOIC M8.15

to +85 8 Ld SOIC (Pb-free) M8.15

to +85 8 Ld PDIP E8.3

to +85 8 Ld PDIP (Pb-free; Note 4) E8.3

for details on reel specifications.

, ICL7660A. For more information on MSL, please see

FN3179 Rev 7.00 Page 2 of 13
January 23, 2013

ICL7660S, ICL7660A

Absolute Maximum Ratings Thermal Information

Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +13.0V

LV and OSC Input Voltage (Note 5)

V+ < 5.5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to V+ + 0.3V

V+ > 5.5V . . . . . . . . . . . . . . . . . . . . . . . . . . .V+ -5.5V to V+ +0.3V

Current into LV (Note 5)

V+ > 3.5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20µA

Output Short Duration

V

 5.5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous

SUPPLY

Operating Conditions

Temperature Range

ICL7660SI, ICL7660AI . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C

ICL7660SC, ICL7660AC . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C

CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product relia bility and
result in failures not covered by warranty.

NOTES:

5. Connecting any terminal to voltages greater than V+ or less than GND may cause destructive latchup. It is recommended that no inputs from
sources operating from external supplies be applied prior to “power up” of ICL7660S and ICL7660A.

is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.

6. 

JA

7. For 

8. Pb-free PDIPs can be used for through-hole wave solder processing only. They are not intended for use in reflow solder processing applications.

, the “case temp” location is taken at the package top center.

JC

Thermal Resistance (Typical, Notes 6, 7) 

(°C/W) 

JA

JC

(°C/W)

8 Ld PDIP* . . . . . . . . . . . . . . . . . . . . . . 110 59

8 Ld Plastic SOIC. . . . . . . . . . . . . . . . . 160 48

Storage Temperature Range . . . . . . . . . . . . . . . . . . -65°C to +150°C

Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below

http://www.intersil.com/pbfree/Pb-FreeReflow.asp

*Pb-free PDIPs can be used for through-hole wave solder

processing only. They are not intended for use in reflow solder
processing applications.

Electrical Specifications ICL7660S and ICL7660A, V+ = 5V, T

on page 7 and Figure 13 “ICL7660A Test Circuit” on page 7), unless otherwise specified.

PARAMETER SYMBOL TEST CONDITIONS

Supply Current (Note 11) I+ R

Supply Voltage Range - High

V+

H

(Note 12)

Supply Voltage Range - Low V+

Output Source Resistance R

Oscillator Frequency (Note 10) f

Power Efficiency P

Voltage Conversion Efficiency V

L

OUTIOUT

OSC

EFF

EFF RL =  99 99.9 - %

OUT

= , +25°C - 80 160 µA

L

0°C < T

-40°C < T

-55°C < T

< +70°C - - 180 µA

A

< +85°C - - 180 µA

A

< +125°C - - 200 µA

A

RL = 10k, LV Open, T

RL = 10k, LV to GND, T

= 20mA - 60 100 

I

= 20mA, 0°C < TA < +70°C - - 120 

OUT

I

= 20mA, -25°C < TA < +85°C - - 120 

OUT

I

= 20mA, -55°C < TA < +125°C - - 150 

OUT

I

= 3mA, V+ = 2V, LV = GND,

OUT

0°C < T

I

-40°C < T

I

-55°C < T

C

C

< +70°C

A

= 3mA, V+ = 2V, LV = GND,

OUT

OUT

OSC

OSC

< +85°C

A

= 3mA, V+ = 2V, LV = GND,

< +125°C

A

= 0, Pin 1 Open or GND 5 10 - kHz

= 0, Pin 1 = V+ - 35 - kHz

RL = 5k 96 98 - %

T

< TA < T

MIN

MAX RL

= +25°C, OSC = Free running (see Figure 12, “ICL7660S Test Circuit”

A

MIN

MIN

< TA < T

< TA < T

MAX

MAX

MIN

(Note 9) TYP

3.0 - 12 V

1.5 - 3.5 V

MAX

(Note 9) UNITS

- - 250 

- - 300 

- - 400 

= 5k 95 97 - -

FN3179 Rev 7.00 Page 3 of 13
January 23, 2013

ICL7660S, ICL7660A

Electrical Specifications ICL7660S and ICL7660A, V+ = 5V, T

on page 7 and Figure 13 “ICL7660A Test Circuit” on page 7), unless otherwise specified. (Continued)

PARAMETER SYMBOL TEST CONDITIONS

Oscillator Impedance Z

OSC

V+ = 2V - 1 - M

= +25°C, OSC = Free running (see Figure 12, “ICL7660S Test Circuit”

A

MIN

(Note 9) TYP

MAX

(Note 9) UNITS

V+ = 5V - 100 - k

ICL7660A, V+ = 3V, T

Supply Current (Note 13) I+ V+ = 3V, R

Output Source Resistance R

Oscillator Frequency (Note 13) f

= 25°C, OSC = Free running, Test Circuit Figure 13, unless otherwise specified

A

= , +25°C - 26 100 A

L

OUT

OSC

0°C < T

-40°C < T

V+ = 3V, I

0°C < T

-40°C < T

V+ = 3V (same as 5V conditions) 5.0 8 - kHz

0°C < T

-40°C < T

< +70°C - - 125 A

A

< +85°C - - 125 A

A

= 10mA - 97 150 

OUT

< +70°C - - 200 

A

< +85°C - - 200 

A

< +70°C 3.0 - - kHz

A

< +85°C 3.0 - - kHz

A

NOTES:

9. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested.

10. In the test circuit, there is no external capacitor applied to pin 7. However, when the device is plugged into a test socket, there is usually a very
small but finite stray capacitance present, on the order of 5pF.

11. The Intersil ICL7660S and ICL7660A can operate without an external diode over the full temperature and voltage range. This device will function
in existing designs that incorporate an external diode with no degradation in overall circuit performance.

12. All significant improvements over the industry standard ICL7660 are highlighted.

13. Derate linearly above 50°C by 5.5mW/°C.

FN3179 Rev 7.00 Page 4 of 13
January 23, 2013

ICL7660S, ICL7660A

VOLTAGE

LEVEL

TRANSLATOR

SUBSTRATE

NETWORK

OSC

LV

V+

CAP+

CAP-

7

OSCILLATOR

AND DIVIDE-BY-

2 COUNTER

6

INTERNAL SUPPLY

REGULATOR

3

LOGIC

Q

3

3

Q

1

V

OUT

3

8

2

Q

2

3

4

5

Q

4

GND

-55 -25 0 25 50 100 125

12

10

8

6

4

2

0

SUPPLY VOLTAGE (V)

TEMPERATURE (°C)

SUPPLY VOLTAGE RANGE

(NO DIODE REQUIRED)

250

200

150

100

50

0

02 46 81012

SUPPLY VOLTAGE (V)

OUTPUT SOURCE RESISTANCE (Ω)

TA = +125°C

TA = +25°C

TA = -55°C

350

300

250

200

150

100

50

0

OUTPUT SOURCE RESISTANCE (Ω)

-50 -25 0 25 50 75 100 125

TEMPERATURE (°C)

I

OUT

= 20mA,

V+ = 12V

I

OUT

= 20mA,

V+ = 5V

I

OUT

= 20mA,

V+ = 5V

I

OUT

= 3mA,

V+ = 2V

98

96

94

92

90

88

86

84

82

80

POWER CONVERSION EFFICIENCY (%)

100 1k 10k 50k

OSC FREQUENCY f

OSC

(Hz)

V+ = 5V
T

A

= +25°C

I

OUT

= 1mA

Functional Block Diagram

Typical Performance Curves

See Figure 12, “ICL7660S Test Circuit” on page 7) and Figure 13 “ICL7660A Test Circuit” on page 7

FIGURE 1. OPERATING VOLTAGE AS A

FUNCTION OF TEMPERATURE

FIGURE 3. OUTPUT SOURCE RESISTANCE AS A

FN3179 Rev 7.00 Page 5 of 13
January 23, 2013

FUNCTION OF TEMPERATURE

FIGURE 2. OUTPUT SOURCE RESISTANCE AS A

FUNCTION OF SUPPLY VOLTAGE

FIGURE 4. POWER CONVERSION EFFICIENCY AS A

FUNCTION OF OSCILLATOR FREQUENCY