 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| Data Sheet LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L General Description The AZ431L series ICs are low voltage three-terminal adjustable regulators with guaranteed thermal stability over a full operation range. These ICs feature sharp turn-on characteristics, low temperature coefficient and low output impedance, which make them ideal substitutes for Zener diodes in applications such as switching power supply, charger, motherboard and other adjustable regulators. The output voltage can be set to any value between 1.24V and 18V with two external resistors. The AZ431L precision reference is offered in two voltage tolerance: 0.5% and 1.0%. These ICs are available in 4 packages: TO-92 (bulk or ammo packing), SOT-23, SOT-23-5, SOT-89-3. Features * * * * * * * * Wide Programmable Precise Output Voltage from 1.24V to 18V High Stability under Capacitive Load Low Temperature Deviation: 3mV Typical Low Equivalent Full-range Temperature Coefficient: 20PPM/oC Typical Low Dynamic Output Resistance: 0.05 Typical High Sink Current Capacity from 0.1mA to 100mA Low Output Noise Wide Operating Range of -40 to 125oC Applications * * * * * Graphic Card PC Motherboard Voltage Adapter Switching Power Supply Charger SOT-89-3 TO-92 TO-92 Ammo Packing SOT-23 SOT-23-5 Figure 1. Package Types of AZ431L Mar. 2007 Rev. 1. 7 1 BCD Semiconductor Manufacturing Limited Data Sheet LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L Pin Configuration Z Package (TO-92) Z Package (TO-92 Ammo Packing) N Package (SOT-23) ANODE 3 2 1 CATHODE ANODE REF 3 2 1 CATHODE ANODE REF REF 1 3 2 CATHODE K Package (SOT-23-5) R Package (SOT-89-3) NC NC CATHODE 1 2 5 ANODE 1 3 4 REF 2 3 REF ANODE CATHODE Figure 2. Pin Configuration of AZ431L (Top View) Functional Block Diagram CATHODE REF + - VREF ANODE Figure 3. Functional Block Diagram of AZ431L Mar. 2007 Rev. 1. 7 2 BCD Semiconductor Manufacturing Limited Data Sheet LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L Ordering Information AZ431L E1: Lead Free Blank: Tin Lead Circuit Type TR: Tape and Reel or Ammo Blank: Bulk Voltage Tolerance A: 0.5% B: 1.0% Package Z: TO-92 N: SOT-23 K: SOT-23-5 R: SOT-89-3 Package Temperature Range Voltage Tolerance 0.5% Part Number Tin Lead AZ431LAZ AZ431LAZTR AZ431LBZ AZ431LBZTR Lead Free AZ431LAZ-E1 AZ431LAZTR-E1 AZ431LBZ-E1 AZ431LBZTR-E1 AZ431LANTR-E1 AZ431LBNTR-E1 AZ431LAKTR AZ431LBKTR AZ431LARTR AZ431LBRTR AZ431LAKTR-E1 AZ431LBKTR-E1 AZ431LARTR-E1 AZ431LBRTR-E1 K41 K42 R41A R41B Marking ID Tin Lead AZ431LAZ AZ431LAZ AZ431LBZ AZ431LBZ Lead Free AZ431LAZ-E1 AZ431LAZ-E1 AZ431LBZ-E1 AZ431LBZ-E1 EA6 EA7 E5A E6A E41A E41B Packing Type Bulk Ammo Bulk Ammo Tape & Reel Tape & Reel Tape & Reel Tape & Reel Tape & Reel Tape & Reel TO-92 -40 to 125oC 0.5% 1.0% 1.0% SOT-23 -40 to 125oC -40 to 125oC -40 to 125oC 0.5% 1.0% 0.5% 1.0% 0.5% 1.0% SOT-23-5 SOT-89-3 BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Mar. 2007 Rev. 1. 7 3 BCD Semiconductor Manufacturing Limited Data Sheet LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L Absolute Maximum Ratings (Note 1) Parameter Cathode Voltage Cathode Current Range (Continuous) Reference Input Current Range Symbol VKA IKA IREF PD N, K Package Junction Temperature Storage Temperature Range TJ TSTG 150 -65 to 150 370 oC oC Value 20 -100 to 100 10 Z, R Package 770 Unit V mA mA Power Dissipation mW 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. Recommended Operating Conditions Parameter Cathode Voltage Cathode Current Operating Ambient Temperature Range Symbol VKA IKA Min VREF 0.1 -40 Max 18 100 125 Unit V mA o C Mar. 2007 Rev. 1. 7 4 BCD Semiconductor Manufacturing Limited Data Sheet LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L Electrical Characteristics (Operating Conditions: TA=25oC, unless otherwise noted.) Parameter Reference Voltage 0.5% 1.0% Test Symbol Circuit 4 VREF Conditions VKA=VREF, IKA=10mA 0oC to 70oC Deviation of Reference Voltage Over Full Temperature Range 4 VKA=VREF VREF IKA=10mA -40oC to 85oC Min 1.234 1.228 Typ 1.240 1.240 2 3 4 -0.5 Max 1.246 1.252 10 10 15 -1.5 mV/V mV Unit V -40oC to 125oC Ratio of Change in VREF to the Change in Cathode Voltage 5 VREF IKA=10mA, VKA VKA:VREF to 16V IREF IKA=10mA, R1=10K, R2= IKA=10mA, R1=10K, R2= TA=-40 to 125oC VKA=VREF VREF=0, VKA=18V VKA=6, VREF=0 VKA=VREF, IKA=1 to 100mA f 1.0kHz Reference Input Current 5 0.15 0.4 A Deviation of Reference Current Over Full Temperature Range Minimum Cathode Current for Regulation Off-state Cathode Current Dynamic Impedance 5 IREF IKA (Min) IKA (Off) ZKA 0.1 0.4 A 4 55 0.04 0.01 0.05 80 0.10 0.05 0.15 A A 6 4 Mar. 2007 Rev. 1. 7 5 BCD Semiconductor Manufacturing Limited Data Sheet LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L Electrical Characteristics (Continued) R1 VIN IKA VKA VREF Figure 4. Test Circuit 4 for VKA=VREF R3 VIN IKA R1 IREF VKA=VREF*(1+R1/R2)+ IREF*R1 R2 VREF VKA Figure 5. Test Circuit 5 for VKA>VREF VIN IOFF VKA Figure 6. Test Circuit 6 for IOFF Mar. 2007 Rev. 1. 7 6 BCD Semiconductor Manufacturing Limited Data Sheet LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L Typical Performance Characteristics 1.242 VKA=VREF 1.241 0.18 IKA=10mA 0.17 R1=10K R2=Infinite IKA=10mA Reference Voltage (V) 1.240 Reference Current (A) 0.16 1.239 0.15 1.238 1.237 0.14 1.236 0.13 1.235 -50 -25 0 25 50 75 o 100 125 150 0.12 -50 -25 0 25 50 o 75 100 125 Ambient Temperature ( C) Ambient Temperature ( C) Figure 7. Reference Voltage vs. Ambient Temperature Figure 8. Reference Current vs. Ambient Temperature 150 400 VKA=VREF 100 300 200 VKA=VREF TA=25 C o TA=25 C Cathode Current (A) o Cathode Current (mA) 50 100 0 -100 -200 -300 0 -50 -100 -150 -1 0 1 -1 0 1 Cathode Voltage (V) Cathode Voltage (V) Figure 9. Cathode Current vs. Cathode Voltage Figure 10. Cathode Current vs. Cathode Voltage Mar. 2007 Rev. 1. 7 7 BCD Semiconductor Manufacturing Limited Data Sheet LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L Typical Performance Characteristics (Continued) Output 70 60 50 TA=25 C IKA=10mA 0 6.8K 10F IKA 360 Voltage Gain (dB) 40 30 20 10 0 -10 1k 4.3K 5V 10k 100k Small Signal Frequency (Hz) GND Figure 11. Small Signal Voltage Gain vs. Frequency 10 Output Dynamic Impedance () 100 1 IKA=1mA to 100mA IKA 50 0.1 0.01 1k GND 10k 100k 1M Frequency (Hz) Figure 12. Dynamic Impedance vs. Frequency Mar. 2007 Rev. 1. 7 8 BCD Semiconductor Manufacturing Limited Data Sheet LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L Typical Performance Characteristics (Continued) 3 Input and output voltage (V) Input Output R1 1.8K Pulse Generator f=100KHz R2 50 2 1 Output GND 0 -1 0 1 2 3 4 5 6 Time (S) Figure 13. Pulse Response of Input and Output Voltage -0.30 IKA=10mA -0.35 Ratio of VREF to VKA (mV/V) VKA=VREF to 16V -0.40 -0.45 -0.50 -0.55 -40 -20 0 20 40 60 o 80 100 120 Ambient Temperature ( C) Figure 14. Ratio of Delta Reference Voltage to the Ratio of Cathode Voltage vs. Ambient Temperature Mar. 2007 Rev. 1. 7 9 BCD Semiconductor Manufacturing Limited Data Sheet LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L Typical ApplicationS R3 VIN R1 V OUT VOUT=(1+R1/R2)*VREF V REF R2 AZ431L Figure 15. Shunt Regulator VIN R1 R4 R2 VOUT VOUT=(1+R2/R3)*VREF VREF AZ431L AZ432 R3 Figure 16. High Current Shunt Regulator R2 VIN IOUT R1 IOUT=VREF/R2+IKA AZ431L Figure17. Current Source or Current Limit Mar. 2007 Rev. 1. 7 10 BCD Semiconductor Manufacturing Limited Data Sheet LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L Typical Application (Continued) VIN R1 8.2K AZ1117 R2 250 AZ431L R3 250 5V/1A Figure18. Precision 5V 1A Regulator C1 R2 680 R5 R1 3 R3 R4 VOUT U2 C2 Q1 2 AZ431L COMP PWM Controller VFB 4 PS521 Figure 19. PWM Converter with Reference Mar. 2007 Rev. 1. 7 11 BCD Semiconductor Manufacturing Limited Data Sheet LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L Mechanical Dimensions TO-92 Unit: mm(inch) 1.100(0.043) 1.400(0.055) 3.430(0.135) MIN 0.360(0.014) 0.510(0.020) 3.300(0.130) 3.700(0.146) 0.000(0.000) 0.380(0.015) 1.600(0.063) MAX 4.400(0.173) 4.700(0.185) 4.300(0.169) 4.700(0.185) 0.380(0.015) 0.550(0.022) 1.270(0.050) TYP 2.440(0.096) 2.640(0.104) Mar. 2007 Rev. 1. 7 12 14.100(0.555) 14.500(0.571) BCD Semiconductor Manufacturing Limited Data Sheet LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L Mechanical Dimensions (Continued) TO-92 Ammo Packing Unit: mm(inch) 12.400(0.488) 13.000(0.512) 1.000(0.039) P 4.400(0.173) 4.600(0.181) 1.000(0.039) h 3.400(0.134) 3.600(0.142) 4.400(0.173) 4.600(0.181) 19.000(0.748) 21.000(0.827) 0.380(0.015) 0.550(0.022) 1.000 (0.039) MAX 5.500(0.217) 6.500(0.256) 6.050(0.238) 6.650(0.262) 2.200(0.087) 2.800(0.110) 2.200(0.087) 2.800(0.110) 15.500(0.610) 16.500(0.650) 2.500(0.098) MIN 8.500(0.335) 9.500(0.374) 3.550(0.140) 4.150(0.163) 3.800(0.150) 4.200(0.165) 17.500(0.689) 19.000(0.748) 12.500(0.492) 12.900(0.508) 0.150(0.006) 0.250(0.010) 0.350(0.014) 0.450(0.018) Mar. 2007 Rev. 1. 7 13 BCD Semiconductor Manufacturing Limited Data Sheet LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L Mechanical Dimensions (Continued) SOT-23 Unit: mm(inch) Mar. 2007 Rev. 1. 7 14 BCD Semiconductor Manufacturing Limited Data Sheet LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L Mechanical Dimensions (Continued) SOT-23-5 Unit: mm(inch) 2.820(0.111) 3.020(0.119) 0.100(0.004) 0.200(0.008) 2.650(0.104) 2.950(0.116) 1.500(0.059) 1.700(0.067) 0.200(0.008) 0.700(0.028) REF 0.950(0.037) TYP 0.300(0.012) 0.400(0.016) 1.800(0.071) 2.000(0.079) 0.300(0.012) 0.600(0.024) 0 8 1.050(0.041) 1.250(0.049) 0.000(0.000) 0.100(0.004) 1.050(0.041) 1.150(0.045) Mar. 2007 Rev. 1. 7 15 BCD Semiconductor Manufacturing Limited Data Sheet LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L Mechanical Dimensions (Continued) SOT-89-3 Unit: mm(inch) 1.630(0.064) 1.830(0.072) 1.400(0.055)* 4.400(0.173) 4.600(0.181) 0.000(0.000) 0.076(0.003) 1.400(0.055) 1.600(0.063) R0.200(0.008) 3.950(0.156) 4.250(0.167) 1.200(0.047) 0.900(0.035) 2.300(0.091) 2.600(0.102) 3 10 0.360(0.014) 0.520(0.020) 3.000(0.118) 0.360(0.014) 0.480(0.019) 0.440(0.017) 0.560(0.022) 0.360(0.014) 0.440(0.017) 3 10 R0.150(0.006) Mar. 2007 Rev. 1. 7 16 BCD Semiconductor Manufacturing Limited http://www.bcdsemi.com IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifications 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. MAIN SITE BCD Semiconductor Manufacturing Limited - 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 - 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 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 |
Price & Availability of AZ431LAZTR-E1
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |