LM4040CIM3-2.5 TR Micrel Inc, LM4040CIM3-2.5 TR Datasheet

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LM4040CIM3-2.5 TR

Manufacturer Part Number
LM4040CIM3-2.5 TR
Description
IC REF PREC 2.5V MICROPWR SOT23
Manufacturer
Micrel Inc
Datasheet

Specifications of LM4040CIM3-2.5 TR

Reference Type
Shunt
Voltage - Output
2.5V
Tolerance
±0.5%
Temperature Coefficient
100ppm/°C
Number Of Channels
1
Current - Cathode
60µA
Current - Output
15mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-3, TO-236-3, Micro3™, SSD3, SST3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Input
-
Current - Quiescent
-
General Description
Ideal for space critical applications, the LM4040 and LM4041
precision voltage references are available in the subminiature
(3mm × 1.3mm) SOT-23 surface-mount package.
The LM4040 is the available in fixed reverse breakdown
voltages of 2.500V, 4.096V and 5.000V. The LM4041 is avail-
able with a fixed 1.225V or an adjustable reverse breakdown
voltage.
The minimum operating current ranges from 60µA for the
LM4041-1.2 to 74µA for the LM4040-5.0. LM4040 versions
have a maximum operating current of 15mA. LM4041 ver-
sions have a maximum operating current of 12mA.
The LM4040 and LM4041 have bandgap reference tempera-
ture drift curvature correction and low dynamic impedance,
ensuring stable reverse breakdown voltage accuracy over a
wide range of operating temperatures and currents.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Typical Applications
March 2005
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
Figure 1. LM4040, LM4041 Fixed
Shunt Regulator Application
LM4040
LM4041
R
V
S
R
V
S
I
Q
I
Q
+ I
I
L
L
V
O
1
Features
• Small SOT-23 package
• No output capacitor required
• Tolerates capacitive loads
• Fixed reverse breakdown voltages of 1.225, 2.500V,
• Adjustable reverse breakdown version
• Contact Micrel for parts with extended temperature
Key Specifications
• Output voltage tolerance ............................. ±0.1% (max)
• Low output noise (10Hz to 100Hz)
• Wide operating current range
• Industrial temperature range .................. –40°C to +85°C
• Low temperature coefficient ................ 100ppm/°C (max)
Applications
• Battery-powered equipment
• Data acquisition systems
• Instrumentation
• Process control
• Energy management
• Product testing
• Automotive electronics
• Precision audio components
Precision Micropower Shunt Voltage Reference
4.096V and 5.000V
range.
LM4040 ................................................. 35µV
LM4041 ................................................. 20µV
LM4040 ..................................................60µA to 15mA
LM4041 ..................................................60µA to 12mA
Figure 2. LM4041 Adjustable
Shunt Regulator Application
Adjustable
LM4041
R
LM4040/4041
S
V
S
R
R
1
2
V
V
O
O
= 1.233 (R
2
/R
M9999-031805
1
+ 1)
RMS
RMS
(typ)
(typ)

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LM4040CIM3-2.5 TR Summary of contents

Page 1

General Description Ideal for space critical applications, the LM4040 and LM4041 precision voltage references are available in the subminiature (3mm × 1.3mm) SOT-23 surface-mount package. The LM4040 is the available in fixed reverse breakdown voltages of 2.500V, 4.096V and 5.000V. ...

Page 2

... LM4041DYM3-ADJ SOT-23 Package Markings Example Field Code 1st Character R = Reference 1st Character Y = Pb-Free Example: R2C represents Reference, 2.500V, ±0.5% (LM4040CIM3-2.5) Example: Y1C represents Pb-Free, 1.225V, ±0.5% (LM4040CYM3-1.2) M9999-031805 Pin 3 must float or be connected to pin 2. Adjustable Version Fixed Version SOT-23 (M3) Package SOT-23 (M3) Package ...

Page 3

Functional Diagram LM4040, LM4041 Fixed Absolute Maximum Ratings Reverse Current ......................................................... 20mA Forward Current ......................................................... 10mA Maximum Output Voltage LM4041-Adjustable .................................................... 15V Power Dissipation 25°C (Note 2) ................ 306mW A Storage Temperature ................................ –65°C to +150°C Lead ...

Page 4

... R 10Hz ≤ f ≤ 10kHz 1000hrs T = 25°C ±0.1°C 120 I = 100µA R )]. ΔV /ΔT is the V temperature coefficient, 65°C is the temperature range from –40°C to the reference LM4040CIM3 LM4040DIM3 Limits (Limit) (Note 6) (Note 6) ±12 ±25 ±29 ± ±100 ±150 0.8 1 ...

Page 5

... R 10Hz ≤ f ≤ 10kHz 1000hrs T = 25°C ±0.1°C 120 I = 100µA R )]. ΔV /ΔT is the V temperature coefficient, 65°C is the temperature range from –40°C to the reference LM4040CIM3 LM4040DIM3 Limits Limits (Note 6) ±20 ±41 ±47 ± ±100 ±150 0.9 1.2 1 ...

Page 6

... R 10Hz ≤ f ≤ 10kHz 1000hrs T = 25°C ±0.1°C 120 I = 100µA R )]. ΔV /ΔT is the V temperature coefficient, 65°C is the temperature range from –40°C to the reference LM4040CIM3 LM4040DIM3 Limits Limits (Note 6) ±25 ±50 ±58 ± ±100 ±150 1.0 1.3 1 ...

Page 7

LM4040 Typical Characteristics March 2005 LM4040 R 1Hz rate Test Circuit 7 M9999-031805 ...

Page 8

LM4041-1.2 Electrical Characteristics Boldface limits apply for down Voltage tolerance of ±0.5% and ± 1.0%, respectively. Symbol Parameter V Reverse Breakdown Voltage R Reverse Breakdown Voltage Tolerance (Note 7) I Minimum Operating Current ...

Page 9

LM4041-1.2 Electrical Characteristics Boldface limits apply for down Voltage tolerance of ±0.5% and ± 1.0%, respectively. Symbol Parameter V Reverse Breakdown Voltage R Reverse Breakdown Voltage Tolerance (Note 7) I Minimum Operating Current ...

Page 10

LM4041-Adjustable Electrical Characteristics Boldface limits apply for ≤ I < 12mA, V ≤ V ≤ 10V. The grades C and D designate initial Reverse Breakdown Voltage tolerance of ±0.5% and ±1%, RMIN ...

Page 11

LM4041 Typical Characteristics March 2005 V IN 1Hz rate 11 R 30k LM4041-1.2 Test Circuit M9999-031805 ...

Page 12

LM4041 Typical Characteristics M9999-031805 + 15V 5. INPUT FB LM4041-ADJ 100k V ( – ) OUT ‡ Large Signal Response Test Circuit LM4041-ADJ OUT ( – ...

Page 13

Applications Information The stable operation of the LM4040 and LM4041 references requires an external capacitor greater than 10nF connected between the (+) and (–) pins. Bypass capacitors with values between 100pF and 10nF have been found to cause the devices ...

Page 14

50A 1N914 + FB LM4041-ADJ – Figure 5. Fast Positive Clamp 2.4V + ∆ 390k R3 500k + FB LM4041-ADJ – 390k 1N457 Figure 7. ...

Page 15

I THRESHOLD * D1 can be any LED will March 2005 +15V + FB LM4041-ADJ – 3964 120k 1A < 100mA OUT 1.24V I = OUT R1 Figure 10. ...

Page 16

... Package Information MICREL INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL This information furnished by Micrel in this data sheet is believed to be accurate and reliable. However no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. ...

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