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LM2907MX-8 数据表(PDF) 3 Page - Texas Instruments |
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LM2907MX-8 数据表(HTML) 3 Page - Texas Instruments |
3 / 32 page LM2907-N, LM2917-N www.ti.com SNAS555C – JUNE 2000 – REVISED MARCH 2013 These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. ABSOLUTE MAXIMUM RATINGS (1) (2) Supply Voltage 28V Supply Current (Zener Options) 25 mA Collector Voltage 28V Differential Input Voltage Tachometer 28V Op Amp/Comparator 28V Input Voltage Range Tachometer LM2907-8, LM2917-8 ±28V LM2907, LM2917 0.0V to +28V Op Amp/Comparator 0.0V to +28V Power Dissipation LM2907-8, LM2917-8 1200 mW LM2907-14, LM2917-14(1) 1580 mW Operating Temperature Range −40°C to +85°C Storage Temperature Range −65°C to +150°C Soldering Information PDIP Package Soldering (10 seconds) 260°C SOIC Package Vapor Phase (60 seconds) 215°C Infrared (15 seconds) 220°C (1) For operation in ambient temperatures above 25°C, the device must be derated based on a 150°C maximum junction temperature and a thermal resistance of 101°C/W junction to ambient for LM2907-8 and LM2917-8, and 79°C/W junction to ambient for LM2907-14 and LM2917-14. (2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and specifications. ELECTRICAL CHARACTERISTICS VCC = 12 VDC, TA = 25°C, see test circuit Symbol Parameter Conditions Min Typ Max Units TACHOMETER Input Thresholds VIN = 250 mVp-p @ 1 kHz (1) ±10 ±25 ±40 mV Hysteresis VIN = 250 mVp-p @ 1 kHz (1) 30 mV Offset Voltage VIN = 250 mVp-p @ 1 kHz (1) LM2907/LM2917 3.5 10 mV LM2907-8/LM2917-8 5 15 mV Input Bias Current VIN = ±50 mVDC 0.1 1 μA VOH Pin 2 VIN = +125 mVDC (2) 8.3 V VOL Pin 2 VIN = −125 mVDC (2) 2.3 V I2, I3 Output Current V2 = V3 = 6.0V(3) 140 180 240 μA I3 Leakage Current I2 = 0, V3 = 0 0.1 μA K Gain Constant See(2) 0.9 1.0 1.1 Linearity fIN = 1 kHz, 5 kHz, 10 kHz (4) −1.0 0.3 +1.0 % OP/AMP COMPARATOR VOS VIN = 6.0V 3 10 mV IBIAS VIN = 6.0V 50 500 nA Input Common-Mode 0 VCC−1.5V V Voltage (1) Hysteresis is the sum +VTH − (−VTH), offset voltage is their difference. See test circuit. (2) VOH is equal to ¾ × VCC − 1 VBE, VOL is equal to ¼ × VCC − 1 VBE therefore VOH − VOL = VCC/2. The difference, VOH − VOL, and the mirror gain, I2/I3, are the two factors that cause the tachometer gain constant to vary from 1.0. (3) Be sure when choosing the time constant R1 × C1 that R1 is such that the maximum anticipated output voltage at pin 3 can be reached with I3 × R1. The maximum value for R1 is limited by the output resistance of pin 3 which is greater than 10 MΩ typically. (4) Nonlinearity is defined as the deviation of VOUT (@ pin 3) for fIN = 5 kHz from a straight line defined by the VOUT @ 1 kHz and VOUT @ 10 kHz. C1 = 1000 pF, R1 = 68k and C2 = 0.22 mFd. Copyright © 2000–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM2907-N LM2917-N |
类似零件编号 - LM2907MX-8 |
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类似说明 - LM2907MX-8 |
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