AN431 BCDSEMI | Alldatasheet

Document overview

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Technical content

Features

  • Programmable Precise Output V oltage from 2.5V to 36V
  • High Stability under Capacitive Load
  • Low Temperature Deviation: 4.5mV Typical
  • Low Equivalent Full-range Temperature Coeffi- cient with 20PPM/oC Typical
  • Low Dynamic Output Resistance: 0.15Ω Typical
  • Sink Current Capacity from 1mA to 100mA
  • Low Output Noise
  • Wide Operating Range of -40 to 125oC

Applications

  • Charger
  • V oltage Adapter
  • Switching Power Supply
  • Graphic Card
  • Precision V oltage Reference SOT-23

Figure 1. Package Type of AN431

ADJUSTABLE PRECISION SHUNT REGULATORS AN431 Data Sheet Mar. 2007 Rev. 1. 7 BCD Semiconductor Manufacturing Limited

Ordering Information

B: 1.0% A: 0.5% E1: Lead-Free AN431 - A: AN431 (40V) Package Temperature Range Voltage Tolerance Part Number Marking ID Packing Type SOT-23 -40 to 125oC 0.5% AN431AN-ATRE1 EB1 Tape & Reel 1.0% AN431BN-ATRE1 EB2 Tape & Reel Package N: SOT-23 TR: Tape and Reel BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.

ADJUSTABLE PRECISION SHUNT REGULATORS AN431 Data Sheet Mar. 2007 Rev. 1. 7 BCD Semiconductor Manufacturing Limited Parameter Symbol Value Unit Cathode V oltage VKA 40 V Cathode Current Range (Continuous) IKA -100 to 150 mA Reference Input Current Range IREF 10 mA Power Dissipation PD 370 mW Junction Temperature TJ 150 oC Storage Temperature Range TSTG -65 to 150 oC ESD (Human Body Model) ESD 2000 V Note 1: Stresses greater than 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 under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability. Absolute Maximum Ratings (Note 1) Parameter Symbol Min Max Unit Cathode V oltage VKA VREF 36 V Cathode Current IKA 1.0 100 mA Operating Ambient Temperature Range -40 125 oC Recommended Operating Conditions

Mar. 2007 Rev. 1. 7 BCD Semiconductor Manufacturing Limited ADJUSTABLE PRECISION SHUNT REGULATORS AN431 Parameter Test Circuit Symbol Conditions Min Typ Max Unit Reference V oltage 0.5% 4 VREF VKA=VREF, IKA=10mA 2.487 2.500 2.512 V 1.0% 2.475 2.500 2.525 Deviation of Reference V oltage Over Full Temperature Range 4 ∆VREF VKA=VREF IKA=10mA 0 to 70oC 4.5 8 mV-40 to 85oC 4.5 10 -40 to 125oC 4.5 16 Ratio of Change in Reference V oltage to the Change in Cathode V oltage 5 ∆V REF ∆VKA IKA=10mA ∆VKA= 10V to VREF -1.0 -2.7 mV/V ∆VKA= 36V to 10V -0.5 -2.0 Reference Current 5 IREF IKA=10mA, R1=10KΩ, R2=∞ 0.7 4 µA Deviation of Reference Current Over Full Temperature Range 5 ∆IREF IKA=10mA, R1=10KΩ R2=∞, TA=-40 to 125oC 0.4 1.2 µA Minimum Cathode Current for Regulation 4 IKA (Min) VKA=VREF 0.4 1.0 mA Off-state Cathode Current 6 IKA (Off) VKA=36V , VREF=0 0.05 1.0 µA Dynamic Impedance 4 ZKA VKA=VREF, IKA=1 to 100mA, f ≤ 1.0kHz 0.15 0.5 Ω

Electrical Characteristics

Operating Conditions: TA=25oC, unless otherwise specified.

Figure 16. Pulse Response of Input and Output Voltage

Mar. 2007 Rev. 1. 7 BCD Semiconductor Manufacturing Limited ADJUSTABLE PRECISION SHUNT REGULATORS AN431 Mechanical Dimensions SOT-23 Unit: mm(inch)

BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifi- cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or other rights nor the rights of others. - Wafer Fab Shanghai SIM-BCD Semiconductor Manufacturing Limited 800, Yi Shan Road, Shanghai 200233, China Tel: +86-21-6485 1491, Fax: +86-21-5450 0008 BCD Semiconductor Manufacturing Limited MAIN SITE REGIONAL SALES OFFICE Shenzhen Office Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. Shenzhen Office Advanced Analog Circuits (Shanghai) Corporation Shenzhen Office Room E, 5F, Noble Center, No.1006, 3rd Fuzhong Road, Futian District, Shenzhen 518026, China Tel: +86-755-8826 7951 Fax: +86-755-8826 7865 Taiwan Office BCD Semiconductor (Taiwan) Company Limited 4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei, Taiwan Tel: +886-2-2656 2808 Fax: +886-2-2656 2806 USA Office BCD Semiconductor Corporation 30920 Huntwood Ave. Hayward, CA 94544, U.S.A Tel : +1-510-324-2988 Fax: +1-510-324-2788 - IC Design Group Advanced Analog Circuits (Shanghai) Corporation 8F, Zone B, 900, Yi Shan Road, Shanghai 200233, China Tel: +86-21-6495 9539, Fax: +86-21-6485 9673 BCD Semiconductor Manufacturing Limited http://www.bcdsemi.com