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LM336_[www.ic5.cn]

2013-01-13 11页 pdf 928KB 68阅读

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LM336_[www.ic5.cn] 1/10 n LOW TEMPERATURE COEFFICIENT n WIDE OPERATING CURRENT OF 400µA TO 10mA n 0.2Ω DYNAMIC IMPEDANCE n GUARANTEED TEMPERATURE STABILITY n FAST TURN-ON DESCRIPTION The LM236 and LM336 are precision 2.5V regula- tor diodes. These voltage reference monolithic IC...
LM336_[www.ic5.cn]
1/10 n LOW TEMPERATURE COEFFICIENT n WIDE OPERATING CURRENT OF 400µA TO 10mA n 0.2Ω DYNAMIC IMPEDANCE n GUARANTEED TEMPERATURE STABILITY n FAST TURN-ON DESCRIPTION The LM236 and LM336 are precision 2.5V regula- tor diodes. These voltage reference monolithic ICs operate like 2.5V zener diodes with a low temper- ature coefficient and a dynamic impedance of 0.2Ω. A third pin enables adjusting the reference voltage and the temperature coefficient. ORDER CODE Z = TO92 Plastic package - also available in Bulk (Z), Tape & Reel (ZT) and Ammo Pack (AP) D = Small Outline Package (SO) - also available in Tape & Reel (DT) PIN CONNECTIONS (top view) Part Number Temperature Range Package Z D LM236 -25°C, +85°C • • LM336,B 0°C, +70°C • • Z TO92 (Plastic Package) D SO8 (Plastic Micropackage) ADJ v+ v- 8 7 6 5 1 2 3 4 V+ NC ADJ NC NC V+NC NC TO92 (Top view) SO8 (Top view) 1- NC 2- NC 3- NC 4- V- 5- ADJ 6- NC 7- NC 8- V+ 2- LM236 LM336,B 2.5V VOLTAGE REFERENCES May 2003 LM236 - LM336,B 2/10 SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS Symbol Parameter LM236 LM336,B Unit IR IF Current Reverse Forward 15 10 mA Toper Operating Free-air Temperature Range -25 to +85 0 to +70 °C TStg Storage Temperature Range -65 to +150 °C Symbol Parameter LM236 LM336,B Unit Min. Typ. Max. Min. Typ. Max. VR Reference Breakdown Voltage Tamb = +25°C, IR = 1mA LM236, LM336 LM336B 2.44 2.49 2.54 2.39 2.44 2.49 2.49 2.59 2.54 V ∆VR Reverse Breakdown Voltage Change with Current 400µA ≤ IR ≤ 10mA Tamb = +25°C Tmin. ≤ Tamb ≤ Tmax. 2.6 3 6 10 2.6 3 10 12 mV ZD Reverse Dynamic Impedance (IR = 1mA) Tamb = +25°C Tmin. ≤ Tamb ≤ Tmax. 0.2 0.4 0.6 1 0.2 0.4 1 1.4 Ω KVT Temperature Stability (VR = 2.49V, IR = 1mA) 3.5 9 1.8 6 mV KVH Long Term Stability (Tamb = +25°C ±0.1°C, IR= 1mA) 20 20 ppm LM236 - LM336,B 3/10 LM236 - LM336,B 4/10 APPLICATION HINTS The LM236, LM336 voltage references are easier to use than zener diodes. Their low impedance and wide current range facilitate biasing in any cir- cuits. Besides, the breakdown voltage or the tem- perature coefficient can be adjusted so as to opti- mize the performance of the circuit. Figure 1 represents a LM336 with a 10kΩ potenti- ometer to adjust the reverse breakdown voltage which can be adjusted without altering the temper- ature coefficient of the circuit. The adjustment range is generally sufficient to adjust the initial tol- erance of the circuit and the inaccuracy of the am- plifier circuit. To obtain a lower temperature coefficient two di- odes can be connected in series as indicated in Figure 2. When the circuit is adjusted to 2.49V the tempera- ture coefficient is minimized. For a correct temperature coefficient, the diodes should be at the same ambient temperature as the LM336. The value of R1 is not critical (2-20kΩ). LM236 - LM336,B 5/10 LM236 - LM336,B 6/10 LM236 - LM336,B 7/10 LM236 - LM336,B 8/10 PACKAGE MECHANICAL DATA DIM. mm. inch MIN. TYP MAX. MIN. TYP. MAX. A 1.35 1.75 0.053 0.069 A1 0.10 0.25 0.04 0.010 A2 1.10 1.65 0.043 0.065 B 0.33 0.51 0.013 0.020 C 0.19 0.25 0.007 0.010 D 4.80 5.00 0.189 0.197 E 3.80 4.00 0.150 0.157 e 1.27 0.050 H 5.80 6.20 0.228 0.244 h 0.25 0.50 0.010 0.020 L 0.40 1.27 0.016 0.050 k ˚ (max.) ddd 0.1 0.04 SO-8 MECHANICAL DATA 0016023/C 8 LM236 - LM336,B 9/10 PACKAGE MECHANICAL DATA - TO92 TAPE AMMO PACK & TO92 TAPE & REEL Packing information are available at: http://www.st.com/stonline/prodpres/packages/stdlin.htm DIM. mm. inches MIN. TYP MAX. MIN. TYP. MAX. AL 5.0 0.197 A 5.0 0.197 T 4.0 0.157 d 0.45 0.018 I1 2.5 0.098 P 11.7 12.7 13.7 0.461 0.500 0.539 PO 12.4 12.7 13 0.488 0.500 0.512 P2 5.95 6.35 6.75 0.234 0.250 0.266 F1/F2 2.4 2.5 2.8 0.094 0.098 0.110 D h -1 0 1 -0.039 0 0.039 D P -1 0 1 -0.039 0 0.039 W 17.5 18.0 19.0 0.689 0.709 0.748 W0 5.7 6 6.3 0.224 0.236 0.248 W1 8.5 9 9.75 0.335 0.354 0.384 W2 0.5 0.020 H 20 0.787 H0 15.5 16 16.5 0.610 0.630 0.650 H1 25 0.984 DO 3.8 4.0 4.2 0.150 0.157 0.165 L1 11 0.433 TO-92 MECHANICAL DATA LM236 - LM336,B 10/10 PACKAGE MECHANICAL DATA - TO92 BULK Packing information are available at: http://www.st.com/stonline/prodpres/packages/stdlin.htm DIM. mm. mils MIN. TYP MAX. MIN. TYP. MAX. A 4.32 4.95 170.1 194.9 b 0.36 0.51 14.2 20.1 D 4.45 4.95 175.2 194.9 E 3.30 3.94 129.9 155.1 e 2.41 2.67 94.9 105.1 e1 1.14 1.40 44.9 55.1 L 12.7 15.49 500.0 609.8 R 2.16 2.41 85.0 94.9 S1 0.92 1.52 36.2 59.8 W 0.41 0.56 16.1 22.0 TO-92 MECHANICA DATA 0102782/C Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics © 2003 STMicroelectronics - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom http://www.st.com
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