Calogic LLC CL432D, CL432VS, CL432S, CL432LP Datasheet

CORPORATION

1.25VPrecision Adjustable

Shunt Reference / Amplifier

Preliminary Product Information

CL432

FEATURES

•• T emperatur e- Co m p ensated: 50ppm/

o

C

•• Trimmed 0.5% Bandgap Reference

•• Internal Amplifier with 150mA Capability

•• Nominal Temperature Range Extended to 105

o

C

•• Low Frequenc y Dynami c Output Imp edan ce: < 150m

•• Low Output Noise

PIN CONFIGU R ATIO N (Top View)

DESCRIPTION

Calogic’s CL432 is a 3-terminal Adjustable Shunt Regulator
highly accurate 1.25V bandgap reference with a 0.5%
tolerance. The device offers thermal stability, wide operating
current (100mA) and an extended temperature range of 0

o

C for operation in power supply applications. The CL432

105

o

to

offers a wide operating voltage range of up to 18V and is an
excellent choice for voltage reference requirements in an
isolated feedback circuit for 3.0V to 3.3V switching mode
power supplies. The tight tolerance guarantees a lower
design cost for the power supply manufacturer by virtually
eliminating the need for an extra power supply manufacturing
process of the power supply.

The device is housed in several package options to meet the
designers crite ria.

ORDERING INFORMATION
Part Package Temperature Range

o

CL432LP TO-92 0 to 105
CL432D 8-Pin Plastic SOI C 0 to 105
CL432VS SOT-23 0 to 105
CL432S SOT-89 0 to 105

C

o

C

o

C

o

C

ANODE

TO-92 (LP)

SOT-23 (VS)

CATHODE

ANODE

REFERENCE

1G-33

CATHODE

REFERENCE

CATHODE

ANODE

ANODE

N/C

1J-22

1

2

3

4

SOT-89 (S)

SOIC (D)

8

REFERENCE

7

ANODE

6

ANODE

5

N/C

CATHODE

ANODE

REFERENCE

1G-35

1G-34

CALOG IC CORPOR ATION, 237 Whitney Place, Fremont, California 94539, Telephone: [phone], FAX: [phone]

CL432

CORPORATION

ABSOLUTE MAXIMUM RATINGS

SYMBOL PARAMETER RATING UNITS

V

KA

I

AK

I

KA

I

REF

P

D

T

J

T

STG

T

L

Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permane nt damag e to the device. This is a stress r ating
only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification
is not implied. Exposure to ab solut e ma ximu m rati ng conditi on s for ext ende d peri od s may affe ct reliab ili ty.

RECOMMENDED CONDITIONS

SYMBOL P ARAMETER RATING UNIT

V

KA

I

K

Cathode-Anode Reverse Breakdown 18 V
Anode-Cathode Forward Current 1 A
Operating Cathode Current 100 mA
Reference Inp ut Current 1 mA
Continuou s Power at 25oC

TO-92
8L SOIC
SOT-23
SOT-89

775
750

1000

200
Junction Temperature 150
Storage Temperature –65 to 150
Lead Temperature, Soldering 10 Seconds 300

TYPICAL THERMAL RESISTANCES

Cathode Voltage V

to 18 V

REF

Cathode Current 10 mA

PACKAGE θ

TO-92 160
SOIC 175
SOT-23 575
SOT-89 110

JA

o

C/W 80oC/W 6.3mW/oC

o

C/W 45oC/W 5.7mW/oC

o

C/W 150oC/W 1.7mW/oC

o

C/W 8oC/W 9.1mW/oC

θ

JC

mW
mW
mW
mW

o

C

o

C

o

C

TYPICAL DERATING

FUNCTIONAL BLOCK DIAGRAM

CATHODE (K)

REFERENCE (R)

+
–

+

1.25V

–

ANODE (A)

1J-23

CALOG IC CORPOR ATION, 237 Whitney Place, Fremont, California 94539, Telephone: [phone], FAX: [phone]

CL432

CORPORATION

ELECTRICAL CHARACTERISTICS

Electrica l characte ri stics are gua ran te ed over full junction temp erature range (0 to 105oC). Ambient temperature must be derated based on
power dissipation and package thermal characteristics. The conditions are: VKA = V

SYMBOL PARAMETER MIN TYP MAX UNIT TEST CONDITION

and IK = 10mA unless otherwise stated.

REF

V

REF

V

REF

V

REF

V

REF

I

REF

I

REF

I

K(MIN)

I

K(MIN)

*Tempera tu re devia tio n is defined as the ma ximu m devia tio n of the refere nce over the given tem pe rat ure range and does not im ply an
incremental deviation at any given temperature.

Output Voltage 1.244 1.250 1.256 V IK = 10mA, TJ = 25oC, VK = V
Line Regulation 10 15 mV VK = 1. 25 to 15 V
Load Regulation 3 6 mV IK = 1 to 100mA
T emperature Deviation 2 6 mV 0 < TJ < 105oC
Reference Input Current 3 6 µA
Reference Input Current Temperature

Coefficient

0.3 0.6 µA 0 < T

< 105oC

J

Min. Cathode Current for Regulation 0.6 1 mA
Off State Leakage 0.04 500 nA V

= 0V, VKA = 18V

REF

TYPICAL PERFORMANCE CU R VES (Not available at time of publishing)

REF

Calogic reserves the right to make changes without further notice to any products described herein to improve reliability, function,
or design. C alogic does not assume any liability arising out of the application or use of any product or circuit described herein;
neither does it convey any license under its patent rights or the right of others. Calogic products are not authorized for use as
components in life support devices or systems intended for surgical implant into the body or intended to support or sustain life.
Buyer agrees to notify Calogic of any such intended end use whereupon Calogic will determine availability and suitability of its
products for the intended use. Calogic and the Calogic logo are trademarks of Calogic.

CALOG IC CORPOR ATION, 237 Whitney Place, Fremont, California 94539, Telephone: [phone], FAX: [phone]