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Micropower Voltage Reference Diode
CORPORATION
CLM285-2.5 / CLM385-2.5
FEATURES ORDERING INFORMATION Part CLM285Y2 CLM385T2 CLM385N2 CLM385Y2 Package Max Tempco (ppm) Temp Range SOIC TO-46 TO-92 SOIC 100 100 100 100 -40oC to +85oC 0oC to +70oC 0oC to +70oC 0oC to +70oC
* Operating Current . . . . . . . . . . . . . . . . . . . 20A - 20mA * Dynamic Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . 1 * Low Voltage Reference . . . . . . . . . . . . . . . . . . . . . . . 2.5V
PRODUCT DESCRIPTION The CLM285 / 385 - 2.5 are 2 terminal band-gap voltage regulator diodes. Operating over a 20A to 20mA current range. The devices provide good temperature stability and exceptionally low dynamic impedance. Designed for applications in portable meters, regulators or general purpose circuitry.
PIN CONFIGURATIONS
SO-8
TO-92
+ 8
NC 7
NC 6
NC 5
3
2
1
1 NC 2 NC 3 NC 4
TO-92 (N-SUFFIX) BOTTOM VIEW
SO PACKAGE (Y-SUFFIX) BOTTOM VIEW
CLM285-2.5 / CLM385-2.5
CORPORATION
ABSOLUTE MAXIMUM RATINGS (Note 1) Reverse Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30mA Forward Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA Operating Temperature Range (Note 3) CLM185-2.5 . . . . . . . . . . . . . . . . . . . . . . . -55oC to +125oC CLM285-2.5 . . . . . . . . . . . . . . . . . . . . . . . . -40oC to +85oC CLM385-2.5 . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to +70oC Storage Temperature . . . . . . . . . . . . . . . . . . -55oC to +150oC Soldering Information TO-92 Package (10 sec.). . . . . . . . . . . . . . . . . . . . . 260oC TO-46 Package (10 sec.). . . . . . . . . . . . . . . . . . . . . 300oC SO Package: Vapor Phase (60 sec.) . . . . . . . . . . 215oC Infrared (15 sec.) . . . . . . . . . . . . . . 220oC
ELECTRICAL CHARACTERISTICS (Continued) (Note 3)
CLM285-2.5 PARAMETER TYP TESTED LIMIT (NOTE 4) 2.460 2.535 18 1 10 1 120 20 50 100 100 20 1.5 20 DESIGN LIMIT (NOTE 5) CLM385-2.5 TESTED DESIGN LIMIT LIMIT (NOTE 4) (NOTE 5) 2.470 2.530 20 2.0 20 20 1.5 25 UNITS (LIMITS) CONDITIONS
Reverse Breakdown Voltage Minimum Operating Current Reverse Breakdown Voltage Change with Current Reverse Dynamic Impedance Wideband Noise (rms) Long Term Stability Average Temperature Coefficient (Note 6)
2.5 13
V(min) V(max) A(Max) mV(Max) mV(Max) V ppm ppm/oC(Max)
TA = 25oC, 20A I R 20mA 20A I R 1mA 1mA IR 20mA IR = 100A, f = 20Hz IR = 100A 10Hz f 10kHz IR = 100A, T = 1000Hr, TA = 25oC .0.1 oC IR = 100A
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Note 2: For elevated temperature operation, T j max is: CLM285 125oC CLM385 100oC
Thermal Resistance ja (Junction to Ambient) jc (Junction to Case) TO-92 180oC/W (0.4" Leads) 170oC/W (0.125" Leads) N/A SO-8 165oC/W N/A
Note 3: Parameters identified with boldface type apply at temperature extremes. All other numbers apply at TA = TJ = 25oC. Note 4: Guaranteed and 100% production tested. Note 5: Guaranteed, but not 100% production tested. These limits are not used to calculate average outgoing quality levels. Note 6: The average temperature coefficient is defined as the maximum deviation of reference voltage at all measured temperatures between the operating T MAX and TMIN, divided by TMAX-TMIN. The measured temperatures are -55oC, -40 oC, 0oC, 25 oC, 70 oC, 85oC, 125oC.
CLM285-2.5 / CLM385-2.5
CORPORATION
APPLICATIONS
WIDE INPUT RANGE REFERENCE VIN = 3.7V TO 30V
MICROPOWER REFERENCE FROM 9V BATTERY 9V 200k
LM334 3.3k OUT 2.5V CLM385-2.5
2.5V CLM385-2.5

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