CALOGIC CLM385N2

Micropower
Voltage Reference Diode
CORPORATION
CLM285-2.5 / CLM385-2.5
FEATURES
• Operating Current . . . . . . . . . . . . . . . . . . . 20µA - 20mA
• Dynamic Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . 1Ω
• Low Voltage Reference . . . . . . . . . . . . . . . . . . . . . . . 2.5V
PRODUCT DESCRIPTION
ORDERING INFORMATION
Part
CLM285Y2
CLM385T2
CLM385N2
CLM385Y2
Package Max Tempco (ppm) Temp Range
SOIC
TO-46
TO-92
SOIC
100
100
100
100
The CLM285 / 385 - 2.5 are 2 terminal band-gap voltage
regulator diodes. Operating over a 20µA 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
3
2
NC
NC
NC
7
6
5
1
TO-92 (N-SUFFIX)
BOTTOM VIEW
1
2
3
NC
NC
NC
SO PACKAGE
(Y-SUFFIX)
BOTTOM VIEW
4
-
-40oC to +85oC
0oC to +70oC
0oC to +70oC
0oC to +70oC
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
CLM385-2.5
UNITS
(LIMITS)
TYP
TESTED
LIMIT
(NOTE 4)
Reverse Breakdown
Voltage
2.5
2.460
2.535
Minimum Operating Current
13
18
20
20
20
µA(Max)
1
1.5
2.0
1.5
mV(Max)
20µA ≤ I R ≤ 1mA
10
20
20
25
mV(Max)
1mA ≤ IR ≤ 20mA
Reverse Breakdown Voltage
Change with Current
DESIGN
LIMIT
(NOTE 5)
TESTED DESIGN
LIMIT
LIMIT
(NOTE 4) (NOTE 5)
2.470
2.530
V(min)
V(max)
CONDITIONS
TA = 25oC,
20µA ≤ I R ≤ 20mA
1
Ω
IR = 100µA, f = 20Hz
Wideband Noise (rms)
120
µV
IR = 100µA
10Hz ≤ f ≤ 10kHz
Long Term
Stability
20
ppm
Reverse Dynamic Impedance
Average Temperature
Coefficient (Note 6)
50
100
100
ppm/oC(Max)
IR = 100µA, T = 1000Hr,
TA = 25oC ±.0.1 oC
IR = 100µA
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
θja (Junction to Ambient)
θjc (Junction to Case)
TO-92
SO-8
180oC/W (0.4" Leads)
170oC/W (0.125" Leads)
165oC/W
N/A
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