CM431A N/A, CM431A Datasheet
CM431A
Related parts for CM431A
CM431A Summary of contents
Page 1
... REF The CM431A offers low output impedance for improved load regulation with a typical output impedance of 200mΩ. Because of the active output circuitry, the CM431A can replace the zener diodes in applications such as switching power supplies, OVP crowbar circuits, references for A/D, D/A converters with improved turn-on characteristics ...
Page 2
... TYPICAL APPLICATION Note: R should b provide cathode current ≥ 1mA 5V Precision Regulator 2004/08/27 Champion Microelectronic Corporation OLTAGE BLOCK DIAGRAM 27.5K + REF 0. 27.5K 0.1% V REF CM431A DJUSTABLE HUNT EGULATOR CATHODE ANODE Page 2 ...
Page 3
... Pb Free Product 2004/08/27 Champion Microelectronic Corporation OLTAGE DJUSTABLE TOLERANCE 1.0% 1.5% CM431ABCM233 CM431AECM233 CM431ABCM2R3 CM431AECM2R3 CM431ABCM235 CM431AECM235 CM431ABCM89 CM431AECM89 CM431ABCN CM431AECN CM431ABCS CM431AECS CM431AGBCM233* CM431AGECM233* CM431AGBCM2R3* CM431AGECM2R3* CM431AGBCM235* CM431AGECM235* CM431AGBCM89* CM431AGECM89* CM431AGBCN* CM431AGECN* CM431AGBCS* CM431AGECS* CM431A S R HUNT EGULATOR T/R Quantity TR=3K TR=3K TR=3K TR=1K TA=2K TR=3K TR=3K TR=3K ...
Page 4
... OLTAGE ≦ Power rating(mW) Power rating(mW) 757 801 1763 438 C/ θ CM431A DJUSTABLE HUNT EGULATOR -0.3V to 18V -100mA to 150mA -50uA to 10mA O 150 - 150 C O 260 = ...
Page 5
... REF 1mA to 100mA REF | ≤ 1kHz A S DJUSTABLE HUNT = 25°C. A CM431A Min Typ 2.488 2.5 2.512 2.475 2.5 2.525 2.463 2.5 2.537 ≤ -1.4 2 ≤ 0.4 0.1 0.2 CM431A R EGULATOR Units Max -2.7 mV/V 4 µA 2 µA 1 Ω 0.5 Page 5 ...
Page 6
... Input V RE Figure 1. Test Circuit for V 2004/08/27 Champion Microelectronic Corporation OLTAGE V Input R1/R2 Figure 2. Test Circuit for REF Input V I OFF Figure 3. Test Circuit for I OFF DJUSTABLE HUNT REF REF > REF KA CM431A EGULATOR Page 6 ...
Page 7
... TYPICAL CHARACTERISTICS Cathode Current vs. Cathode Voltage Ref. Input Voltage vs. Free-Air Temperature 2004/08/27 Champion Microelectronic Corporation OLTAGE DJUSTABLE Cathode Current vs. Cathode Voltage Ref. Input Current vs. Free-Air Temperature CM431A S R HUNT EGULATOR Page 7 ...
Page 8
... APPLICATION INFORMATION R* V BATT R1 0.1% V REF R2 0. R1/R2) × Note: R should provide 1mA cathode current to the CM431A of minimum V BATT Figure 4. Shunt Regulator V BATT R1 CM431A R1/R2) × Figure 6. High-Current Shunt Regulator 2004/08/27 Champion Microelectronic Corporation OLTAGE V O CM431A Input REF Figure 5. Single – ...
Page 9
... CM431A 243Ω 0.1% Figure 9. Precision Constant Current Sink V V BATT Figure 11. Precision Current Limiter DJUSTABLE HUNT V BATT REF 0. 0.1% CM431A OUT REF /(( BATT CM431A EGULATOR Page 9 ...
Page 10
... PACKAGE DIMENSION 2004/08/27 Champion Microelectronic Corporation OLTAGE TO-92 L SOT-23-3 b1 With Plating b Base Metal Section B-B L See Section B-B L1 CM431A S R DJUSTABLE HUNT EGULATOR θ θ θ θ1 θ ...
Page 11
... Champion Microelectronic Corporation OLTAGE (CONTINUED) SOT-23-5 b1 With Plating b Base Metal Section B See Section B-B SOT- φ 1 CM431A DJUSTABLE HUNT EGULATOR θ θ1 θ ...
Page 12
... PACKAGE DIMENSION PIN 1 ID 2004/08/27 Champion Microelectronic Corporation OLTAGE (CONTINUED) 8-PIN SOP (S08) θ CM431A DJUSTABLE HUNT EGULATOR Page 12 ...
Page 13
... NUMBERING SCHEME Ordering Number: CM431AXYZ (note1) Ordering Number: CM431AGXYZ (note2) note1 Suffix for Reference Voltage Tolerance (note Suffix for Temperature Range (note Suffix for Package Type (note 5) note2 Suffix for Pb Free Product X : Suffix for Reference Voltage Tolerance (note Suffix for Temperature Range (note 4) ...
Page 14
... HsinChu City, Taiwan +886-3-5679979 +886-3-5679909 2004/08/27 Champion Microelectronic Corporation OLTAGE DJUSTABLE IMPORTANT NOTICE Sales & Marketing 11F, No. 306-3, Sec Tung Rd., Hsichih, Taipei Hsien 221 Taiwan, R.O. +886-2-86921591 +886-2-86921596 CM431A S R HUNT EGULATOR Page 14 ...