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Details, datasheet, quote on part number:LM4041AEX3-12-T
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Datasheet text preview:
19-1704; Rev 2; 5/03
Improved Precision Micropower Shunt Voltage Reference
General Description
The LM4041 is a precision two-terminal shunt mode, bandgap voltage reference with a fixed reverse breakdown voltage of 1.225V. Ideal for space-critical applications, the LM4041 is offered in the subminiature 3-pin SC70 surface-mount package (1.8mm 1.8mm), 50% smaller than comparable devices in SOT23 surfacemount packages (SOT23 versions are also available). Laser-trimmed resistors ensure precise initial accuracy. With a 100ppm/°C temperature coefficient, the device is offered in four grades of initial accuracy ranging from 0.1% to 1%. The LM4041 has a 60µA to 12mA shunt current capability with low dynamic impedance, ensuring stable reverse-breakdown voltage accuracy over a wide range of operating temperatures and currents. The LM4041 does not require an external stabilizing capacitor while ensuring stability with any capacitive load. The LM4041 is guaranteed over the temperature range -40°C to +125°C.
Features
o Ultra-Small 3-Pin SC70 Package o 0.1% (max) Initial Accuracy o 100ppm/°C (max) Temperature Coefficient Guaranteed over -40°C to +125°C Temperature Range o Wide Operating Current Range: 60µA to 12mA o Low 20µVRMS Output Noise (10Hz to 10kHz) o 1.225V Fixed Reverse Breakdown Voltage o No Output Capacitors Required o Tolerates Capacitive Loads
LM4041
Ordering Information
PART LM4041AIX3-1.2-T LM4041AIM3-1.2-T LM4041AEX3-1.2-T LM4041AEM3-1.2-T LM4041BIX3-1.2-T TEMP RANGE -40°C to +85°C -40°C to +85°C -40°C to +125°C -40°C to +125°C -40°C to +85°C -40°C to +85°C -40°C to +125°C -40°C to +125°C -40°C to +85°C -40°C to +85°C -40°C to +125°C -40°C to +125°C -40°C to +85°C -40°C to +85°C -40°C to +125°C -40°C to +125°C PINTOP PACKAGE MARK 3 SC70-3 3 SOT23-3 3 SC70-3 3 SOT23-3 3 SC70-3 3 SOT23-3 3 SC70-3 3 SOT23-3 3 SC70-3 3 SOT23-3 3 SC70-3 3 SOT23-3 3 SC70-3 3 SOT23-3 3 SC70-3 3 SOT23-3 ABF FZEB ALB FZNC ABG FZEC ALC FZND ABH FZED ALD FZNE ABI FZEE ALE FZNF
________________________Applications
Portable, Battery-Powered Equipment Notebook Computers Cell Phones Industrial Process Controls
LM4041BIM3-1.2-T LM4041BEX3-1.2-T LM4041BEM3-1.2-T LM4041CIX3-1.2-T LM4041CIM3-1.2-T LM4041CEX3-1.2-T LM4041CEM3-1.2-T LM4041DIX3-1.2-T LM4041DIM3-1.2-T LM4041DEX3-1.2-T
Pin Configuration
TOP VIEW
LM4041DEM3-1.2-T
*See Selector Guide for a listing of LM4041 Output Voltage, Initial Accuracy, and Temperature Coefficient specifications.
+
1
Selector Guide
LM4041
3 N.C.*
PART LM4041A___-1.2-T
-2
INITIAL ACCURACY (%) 0.1 0.2 0.5 1.0
OUTPUT VOLTAGE (V) 1.225 1.225 1.225 1.225
TEMPCO (ppm/°C) 100 100 100 150
SC70-3/SOT23-3
*PIN 3 MUST BE LEFT FLOATING OR CONNECTED TO PIN 2.
LM4041B___-1.2-T LM4041C___-1.2-T LM4041D___-1.2-T
________________________________________________________________ Maxim Integrated Products
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For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
Improved Precision Micropower Shunt Voltage Reference LM4041
ABSOLUTE MAXIMUM RATINGS
Reverse Current (cathode to anode) ..........20mA Forward Current (anode to cathode) ..........10mA ESD per Method 3015.7 Human Body Model .......2000V Machine Model........200V Continuous Power Dissipation (TA = +70°C) 3-Pin SC70 (derate 2.17mW/°C above +70°C) ...174mW 3-Pin SOT23 (derate 4.01mW/°C above +70°C)..........320mW Operating Temperature Range LM4041_I_ _ _........-40°C to +85°C LM4041_E_ _ _ ....-40°C to +125°C Storage Temperature Range .....-65°C to +150°C Junction Temperature ......+150°C Lead Temperature (soldering, 10s) ........+300° C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(IR = 100µA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS LM4041A (0.1%) Reverse Breakdown Voltage VR TA = +25°C LM4041B (0.2%) LM4041C (0.5%) LM4041D (1.0%) LM4041A (0.1%) Reverse Breakdown Voltage Tolerance (Note 2) VR LM4041B (0.2%) LM4041C (0.5%) LM4041D (1.0%) Minimum Operating Current IR M I N IR = 10mA Average Reverse Voltage Temperature Coefficient (Note 2) VR/T IR = 1mA IR = 100µA Reverse Breakdown Voltage Change with Operating Current Change Reverse Dynamic Impedance (Note 3) IRMIN IR 1mA VR/IR 1mA IR 12mA ZR IR = 1mA, f = 120Hz, IAC = 0.1IR LM4041A/B/C LM4041D LM4041A/B/C LM4041D LM4041A/B/C LM4041D LM4041A/B/C LM4041D LM4041A/B/C LM4041D MIN 1.2238 1.2226 1.2189 1.2128 TYP 1.2250 1.2250 1.2250 1.2250 ±1.2 ±2.4 ±6.0 ±12 45 45 ±20 ±15 ±15 ±15 0.7 0.7 2.5 2.5 0.5 0.5 1.5 2.0 8.0 10.0 1.5 2.0 mV ±100 ±150 ppm/°C MAX 1.2262 1.2275 1.2311 1.2373 ±9.2 ±10.4 ±14 ±24 60 65 µA mV V UNITS
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Improved Precision Micropower Shunt Voltage Reference
ELECTRICAL CHARACTERISTICS (continued)
(IR = 100µA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER Wideband Noise Reverse Breakdown Voltage Long-Term Stability SYMBOL eN VR CONDITIONS IR = 100µA, 10Hz f 10kHz T = 1000h, IR = 100µA MIN TYP 20 120 MAX UNITS µ V RMS ppm
LM4041
Note 1: All devices are 100% production tested at +25°C and are guaranteed by design for TA = TMIN to TMAX, as specified. Note 2: T h e overtemperature limit for Reverse Breakdown Voltage Tolerance is defined as the room-temperature Reverse Breakdown Voltage Tolerance ±[(VR / T)(maxT)(VR)], where VR / T is the VR temperature coefficient, maxT is the maximum difference in temperature from the reference point of +25°C to TMIN or TMAX, and VR is the reverse breakdown voltage. The total overtemperature tolerance for the different grades in the temperature range where maxT = +65°C is shown below: A grade: ±0.75% = ±0.1% ±100ppm/°C 65°C B grade: ±0.85% = ±0.2% ±100ppm/°C 65°C C grade: ±1.15% = ±0.5% ±100ppm/°C 65°C D grade: ±1.98% = ±1.0% ±150ppm/°C 65°C The total overtemperature tolerance for the different grades in the extended temperature range where maxT = +100°C is shown below: A grade: ±1.1% = ±0.1% ±100ppm/°C 100°C B grade: ±1.2% = ±0.2% ±100ppm/°C 100°C C grade: ±1.5% = ±0.5% ±100ppm/°C 100°C D grade: ±2.5% = ±1.0% ±150ppm/°C 100°C Therefore, as an example, the A-grade LM4041-1.2 has an overtemperature reverse breakdown voltage tolerance of ±2.5V x 0.75% = ±19mV. Note 3: Guaranteed by design.
Typical Operating Characteristics
(IR = 100µA, SC70-3 package, TA = +25°C, unless otherwise noted.)
REVERSE CHARACTERISTICS AND MINIMUM OPERATING CURRENT
LM4041-01
TEMPERATURE DRIFT
LM4041 toc02
REVERSE VOLTAGE vs. CURRENT
LM4041 toc03
100
1 REFERENCE VOLTAGE CHANGE (mV)
6 REVERSE VOLTAGE CHANGE (mV) 5 4 3 2 TA = -40°C 1 0 TA = +85°C TA = +125°C TA = +25°C
80 REVERSE CURRENT (µA)
0
60
-1
40
20
-2
0 0 0.4 0.8 1.2 1.6 2.0 REVERSE VOLTAGE (V)
-3 -50 -25 0 25 50 75 100 125 TEMPERATURE (°C)
0
5
10
15
20
SOURCE CURRENT (mA)
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