SPX4041_04 SIPEX | Alldatasheet
Document overview
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Technical content
Date: 11/29/04 SPX4041 Precision 1.24V Shunt Voltage Reference © Copyright 2004 Sipex Corporation
FEATURES
■ No Output Capacitance Required ■ Two Terminal "Zener" Operation ■ Improved Replacement for TL431 Precision 1.24V Shunt Voltage Reference SPX4041 The SPX4041 is a 2-terminal, temperature compensated, band-gap voltage reference which provides a fixed 1.24V output for input currents between 160µA and 15mA. The bandgap voltage (1.24V) is independently laser trimmed from the output voltage to achieve a very low temperature coefficient, then the output voltage is trimmed to 1.24V. This trimming technique and the low temperature coefficient (A grade: 50 ppm/°C) thin film resistor process gives a very stable device over the full temperature range. The SPX4041 is available in the sub miniature 3 pin SOT-23, 3 pin TO-92 or 8 pin NSOIC packages. The operating temperature is -40°C to 85°C. The SPX4041 advanced design eliminates the need for an external stabilized capacitor while insuring stability with any capacitive load, making it easy to use. Figure 1: Block Diagram
APPLICATIONS
■ Constant Current Source ■ Digital Voltmeter ■ Power Management ■ Precision Regulators Anode (A) Cathode (K) 1.24V
DESCRIPTION
TYPICAL APPLICATIONS CIRCUIT Now Available in Lead Free Packaging ■ Battery Powered Equipment ■ Instrumentation ■ Automotive Electronics ■ Data Acquisition Systems 4 5 SPX4041
8 Pin nSOIC
ELECTRICAL CHARACTERISTICS IIN = 1000µA, TA = 25°C, unless otherwise specified. Figure 2. VREF vs. Temperature Note 1. Three-point measurement guarantees the error band over the specified temperature range.
Figure 13. Low Battery Detector Figure 14. Micropower 10V Reference
Date: 11/29/04 SPX4041 Precision 1.24V Shunt Voltage Reference © Copyright 2004 Sipex Corporation PACKAGE: 8 PIN NSOIC A A1 A2 SIDE VIEW Seating Plane SECTION B-B WITH PLATING SYMBOL MIN NOM MAX A 1.35 - 1.75 A1 0.1 - 0.25 A2 1.25 - 1.65 b 0.31 - 0.51 c 0.17 - 0.24 D E e L 0.4 - 1.27 ø0 º - 8 º ø1 5º - 15º Note: Dimensions in (mm)
8 Pin NSOIC JEDEC MO-012 (AA) Variation
4.90 BSC
6.00 BSC
3.90 BSC
1.27 BSC
1.04 REF
0.25 BSC
L ØØ1 Ø Seating Plane VIEW C TO P VIEW b SEE VIEW C B B E E/2 INDEX AREA (D/2 X E1/2) E1/2 D e c BASE METAL b
Date: 11/29/04 SPX4041 Precision 1.24V Shunt Voltage Reference © Copyright 2004 Sipex Corporation PACKAGE: 3 PIN SOT-23 A A2 A1 SIDE VIEW A A Seating Plane C c WITH PLATING BASE METAL b EE1 e D b 1 2 L Gauge Plane VIEW C SEE VIEW C B B SECTION B-B VIEW A-A Seating Plane Ø SYMBOL MIN NOM MAX A0 . 8 9 - 1.12 A1 0.01 - 0.1 A2 0.88 0.95 1.02 b0 . 3 -0 . 5 c0 . 0 8 - 0 . 2 D2 . 8 2 . 93 . 0 4 e E0 . 9 5 - 2.64 E1 1.2 1.3 1.4 L0 . 4 0 . 50 . 6 ø0 º - 8 º Note: Dimensions in (mm)
3 Pin SOT-23 JEDEC TO-236 (AB) Variation
0.95 BSC
1.90 BSC
0.54 REF
Date: 11/29/04 SPX4041 Precision 1.24V Shunt Voltage Reference © Copyright 2004 Sipex Corporation PACKAGE: 3 PIN TO-92 D W L e1e b A a(2x) E R SYMBOL MIN NOM MAX A 0.17 - 0.195 b 0.014 - 0.02 E 0.13 - 0.155 e 0.95 - 0.105 e1 0.045 - 0.055 L 0.5 - 0.61 R 0.085 - 0.095 S1 0.045 - 0.06 W 0.016 - 0.022 D 0.175 - 0.195 a4 º - 6 º Note: Dimensions in (inches)
3 Pin TO-92
Date: 11/29/04 SPX4041 Precision 1.24V Shunt Voltage Reference © Copyright 2004 Sipex Corporation ANALOG EXCELLENCE Sipex Corporation Headquarters and Sales Office:
233 Hillview Dr
Milpitas, CA 95035 TEL: (408) 934-7500 FAX: (408) 935-7600 Part Number Accuracy Output Voltage Package Type SPX4041AM 1.0% 1.24V 3-Pin SOT-23 SPX4041AM/TR 1.0% 1.24V 3-Pin SOT-23 SPX4041AS 1.0% 1.24V 8-Pin NSOIC SPX4041AS/TR 1.0% 1.24V 8-Pin NSOIC SPX4041AN 1.0% 1.24V 3-Pin TO-92 SPX4041AN/TR 1.0% 1.24V 3-Pin TO-92 SPX4041M 2.0% 1.24V 3-Pin SOT-23 SPX4041M/TR 2.0% 1.24V 3-Pin SOT-23 SPX4041S 2.0% 1.24V 8-Pin NSOIC SPX4041S/TR 2.0% 1.24V 8-Pin NSOIC SPX4041N 2.0% 1.24V 3-Pin TO-92 SPX4041N/TR 2.0% 1.24V 3-Pin TO-92
ORDERING INFORMATION
Available in lead free packaging. To order add "-L" suffix to part number. Example: SPX4041S/TR = standard; SPX4041S-L/TR = lead free /TR = Tape and Reel Pack quantity is 2,000 for TO-92, 2,500 for NSOIC and SOT-23. CLICK HERE TO ORDER SAMPLES