FUJITSU SEMICONDUCTOR DATA SHEET DS04-13400-2E LINEAR IC FREQUENCY-TO-VOLTAGE CONVERTER MB4206 FREQUENCY-TO-VOLTAGE CONVERTER WITH SINGLE POWER SUPPLY COMPARATOR The Fujitsu MB4206 is a frequency-to-voltage converter with an on-chip comparator. The MB4206 uses a charge pump driven by a positive-edge Schmitt trigger/flip-flop input so stable operation is achieved against noise signal input. The output of the comparator is zener-clamped to a reference voltage; thus, a precise hysteresis output is obtained. The overall design makes the circuit fairly tolerant of imperfections in the input waveform. • Conversion coefficient determined by RC pair: VO(F) = FIN • RT • CT • VR • Positive edge-triggered frequency input • Equal internal reference high-level ouput and comparator high level output • Package - 8-pin plastic SIP package (Suffix: -PS) PLASTIC PACKAGE (SIP-08P-M03) PIN ASSIGNMENTS ■ ABSOLUTE MAXIMUM RATINGS (see NOTE) Rating (Ta= 25°C) Unit + 8 OUT(C) 7 +IN(C) 6 VO(F) /-IN(C) Symbol Value Power Supply Voltage VCC 24 V Surge Voltage at VCC VCC(S) 40 (t ≤ 50ms) V 5 VR Zener Current IZ 20 mA 4 GND Power Dissipation PD 300 (Ta ≤ 85°C) mW 3 TC Operating Temperature TOP -30 to +85 2 IN(F) Storage Temperature TSTG -55 to +125 °C °C 1 V CC _ NOTE: Permanent device damage may occur if the above Absolute Maximum Ratings are exceeded. Functional operation should be restricted to the conditions as detailed in the operational sections of this data sheet. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. F/V (Front View) 1 MB4206 Fig. 1 — MB4206 BLOCK DIAGRAM V CC 1 5K IN(F) Charge Pump 2 + 5.4V 5.4V 5.4V 4 7 6 3 TC 8 +IN(C) 5 OUT(C) V R VO(F) /-IN(C) FIG. 2 — TYPICAL HOOKUP AND OPERATING PARAMETERS VCC 1 RIN 8 f IN VO(C) 2 7 R3 3 4 6 CIN 5 VO(F) CT R1 RT R2 C0 VO(F) The following equations define the operating frequency of the comparator. f H . =. CT RT f IN VO(C) f L . =. 1 CT RT R IN and C excessive. f L f H f IN 2 R2 1 IN R2+ R1 R3 R1+ R3 R2 R3 R 1 R 2 +R 1 R 3 + R 2 R 3 are needed when input noise is MB4206 ■ ELECTRICAL CHARACTERISTICS (Ta = 25°C, VCC = 12V) Parameter Power Supplies Symbol Min Typ Max Unit ICC - 7.0 10.0 mA Power Supply Voltage VCC 6.5 - 24 V Reference Voltage VR IL(R)=1mA 5.0 5.4 5.8 V IL(R)=1mA - +1.4 - mV/°C Input High Voltage VIH 2.4 - 24 V Input Low Voltage VIL 0 - 1.2 V Positive-edge 1 - - V/ms Negative-edge 0.1 - - V/ms VIH(F)=24V - 4 8 mA VIL(F)=1.2V - - 0.1 mA Input Current II Output Current IO VTC=2.5V 0.26 0.4 0.58 mA F/V Coefficient*1 K CT=0.1µF, RT=47kΩ, f=100Hz 0.9 1.0 1.1 - CT=0.1µF, RT=47kΩ - ±0.3 - % VIO - 2.0 10 mV II - 0.5 3.0 µA VICM 0 - VR V Linearity*2 Input Offset Voltage Input Bias Current *3 Common Mode Input Voltage*4 Comparator Value Power Supply Current Reference Voltage Temperature Coefficient F/V Converter Condition Voltage Gain Output Voltage Sink Current AV RL=10kΩ - 100 - dB VOL ISINK=3mA - 0.1 0.2 V VOH IL=0.5mA 5.0 5.4 5.8 V ISINK VOL ≤ 1V 8 22 - mA Note: *1 VO(F)=K • VR • CT • RT • f *2 *3 *4 With ƒ IN = 100Hz as a reference, linearity is defined as the straight-line deviation over an input frequency range of 50- to - 150 Hz — see TYPICAL PERFORMANCE CHARACTERISTICS. The current flows from IC. If VCC is lower than VR, use (VCC-2). 3 MB4206 Fig. 3 — TEST CIRCUIT 1 2 MB4206 8 3 f 4 5 6 V O(C) V CC 7 VO(F) IN C RL T VR RT C0 TYPICAL PERFORMANCE CHARACTERISTICS Fig. 4 8 -30 ° 6 ∆VR (mV) 25 ° C I CC C, 85 ° C 0 Fig. 5 REFERENCE VOLTAGE vs LOAD CURRENT 6 4 I L =0 2 0 0 10 20 Power Supply Voltage VCC (V) -30 ° C V R 4 100 V IN = 12V 200 2 30 0 0 4 85 ° C V R V R Reference Voltage Reference Voltage VR (V) Power Supply Current ICC (mA) POWER SUPPLY CURRENT/REFERENCE VOLTAGE vs POWER SUPPLY VOLTAGE 10 Reference Voltage VR (V) ■ +V IN(C) 1 2 Load Current IL(R) (mA) 25 ° C MB4206 Fig. 6 Fig. 7 OUTPUT CURRENT vs OPERATING TEMPERATURE OUTPUT LOW VOLTAGE vs SINK CURRENT 450 0.4 24V 12V 400 6.5V 350 -50 Output Low Voltage VOL (V) Output Current I O(F) (µA) TYPICAL PERFORMANCE CHARACTERISTICS (Continued) 85°C 25°C -30°C 0.3 0.2 0.1 0 0 50 100 2 0 Operating Temperature Ta ( ° C) 6 4 10 8 Sink Current I SINK (mA) Fig. 9 6 Input Frequency fIN (Hz) Fig. 8 F/V CONVERTER OUTPUT VOLTAGE vs INPUT FREQUENCY F/V CONVERTER TRANSMISSION CHARACTERISTICS 100 0 4 3 2 0 0 100 200 300 CT = 0.1 µF RT = 47 kΩ CO = 10 µF 2 Voltage V O(F) (V) CT = 0.1 µF RT = 47 kΩ CO = 10 µF F/V Converter Output F/V Converter Output Voltage V O(F) (V) ■ 1 0 0 200 400 600 800 1000 Time t (ms) Input Frequency fIN (Hz) 5 MB4206 ■ PACKAGE DIMENSIONS 8-LEAD PLASTIC SINGLE IN-LINE PACKAGE (CASE No.: SIP-8P-M03) .128±.010 +.006 +0.15 .774 -.014 (19.65 -0.35 ) (3.26±0.25) INDEX-1 .244±.010 (6.20±0.25) .323±.012 (8.20±0.30) INDEX-2 +.012 .039 -0 +0.30 (0.99 ) -0 .100(2.54) TYP .157±.012 (4.00±0.30) +.012 .060 -0 (1.52 1991 FUJITSU LIMITED S08010S-3C 6 +0.30 ) -0 .020±.003 .010±.002 (0.50±.0.08) (0.25±0.05) Dimensions in inches (millimeters) MB4206 FUJITSU LIMITED For further information please contact: Japan FUJITSU LIMITED Corporate Global Business Support Division Electronic Devices KAWASAKI PLANT, 1015, Kamikodanaka Nakahara-ku, Kawasaki-shi Kanagawa 211, Japan Tel: (044) 754-3753 Fax: (044) 754-3329 North and South America FUJITSU MICROELECTRONICS, INC. Semiconductor Division 3545 North First Street San Jose, CA 95134-1804, U.S.A. Tel: (408) 922-9000 Fax: (408) 432-9044/9045 Europe FUJITSU MIKROELEKTRONIK GmbH Am Siebenstein 6-10 63303 Dreieich-Buchschlag Germany Tel: (06103) 690-0 Fax: (06103) 690-122 Asia Pacific FUJITSU MICROELECTRONICS ASIA PTE. LIMITED No. 51 Bras Basah Road, Plaza By The Park, #06-04 to #06-07 Singapore 189554 Tel: 336-1600 Fax: 336-1609 All Rights Reserved. Circuit diagrams utilizing Fujitsu products are included as a means of illustrating typical semiconductor applications. Complete information sufficient for construction purposes is not necessarily given. The information contained in this document has been carefully checked and is believed to be reliable. However, Fujitsu assumes no responsibility for inaccuracies. The information contained in this document does not convey any license under the copyrights, patent rights or trademarks claimed and owned by Fujitsu. Fujitsu reserves the right to change products or specifications without notice. No part of this publication may be copied or reproduced in any form or by any means, or transferred to any third party without prior written consent of Fujitsu. The information contained in this document are not intended for use with equipments which require extremely high reliability such as aerospace equipments, undersea repeaters, nuclear control systems or medical equipments for life support. F9601 FUJITSU LIMITED Printed in Japan 7