TA8029S TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC TA8029S FREQUENCY TO VOLTAGE CONVERTER The TA8029S is a small 9-pin SIP IC incorporating an accurate frequency / voltage converter and two voltage comparators. It has a Schmitt input circuit and becomes active on the positive edge of the input. Its F / V output is stable even when it is supplied with a high-frequency input. Since the VCC pin connects to a shunt regulator, stable frequency detection is assured regardless of the battery voltage. In addition, its wide operating temperature range allows it to be used for a wide variety of applications. FEATURES Weight: 0.92 g (typ.) l Schmitt input circuit incorporated l Stable F / V output in response to high-frequency input l Two comparators served by single power supplies are incorporated. l Shunt regulator incorporated l Operating temperature range : from -40~85C l Small plastic SIP-9 pin BLOCK DIAGRAM AND PIN LAYOUT 1 2002-02-27 TA8029S PIN DESCRIPTION PIN No. SYMBOL 1 IN Frequency input pin. The IC becomes active on the leading edge of the input. 2 TC One-shot pulse setting pin which connects to a capacitor. 3 F/V F / V conversion output pin which connects to an charging capacitor and resistor. The signal from this pin is also the input to the two built-in comparator. 4 O1 Comparator 1 output pin. This pin provides an NPN transistor open-collector output and has a current capacity of up to 30mA. 5 GND 7 + I1 + I2 8 O2 9 VCC 6 DESCRIPTION Grounded Non-inverted PNP input pin for comparator 1. Non-inverted PNP input pin for comparator 2. Comparator 2 output pin. This pin provides an NPN transistor open-collector output and has a current capacity of up to 30mA. Power supply pin which connects to a 6V Zener diode. TIMING CHART 2 2002-02-27 TA8029S MAXIMUM RATINGS (Ta = 25C) CHARACTERISTIC SYMBOL RATING UNIT Supply Current ICC 30 mA Input Voltage VIN -0.3~30 V Output Voltage VOUT -0.3~30 V Output Current IOUT 30 mA Power Dissipation PD 350 (Note) mW Operating Temperature Topr -40~85 C Storage Temperature Tstg -55~150 C Note: Ta85C ELECTRICAL CHARACTERISTICS (Ta = 25C, VCC = 5V) SYMBOL PIN TEST CIRCUIT Current Consumption ICC VCC Regulated Voltage VR VCC Input Current IIN IN CHARACTERISTIC Input Voltage VIH VIL IN TEST CONDITION MIN TYP. MAX UNIT 3.0 5 mA ICC = 12mA 5.5 6.0 6.5 V VIN = 0~20V -10 10 A 2.8 0.8 V Input Rise Rate VLH IN 0.5 V / ms Input Fall Rate VHL IN 0.1 V / ms IOL Output Current F / V Conversion Coefficient IOH TC Input Current Common-mode Input Voltage VTC = 2.5V 43 VTC = 2.5V -73 -250 -350 -500 A IOH F/V K F/V CT = 0.01F, RT = 27k f = 100Hz (Note 1) 7.8 CT = 0.01F, RT = 27k (Note 2) 3.0 % Linearity Input Offset Voltage + + VIO I1 / I2 2 10 mV IIN + + I1 / I2 -0.2 -1 A VCM I1 / I2 0 VCC -1.5 V 100 dB + + Voltage Gain AV Output Voltage VOL O1 / O2 IOL = 10mA 0.5 V ILEAK O1 / O2 VO = 16V 5 A Output Leakage Current Notes: 1. Calculated from VO = K*VCC *CT*RT*f 2. Straight line deviation at f = 50Hz and f = 150Hz relative to that at f = 100Hz 3 2002-02-27 TA8029S STANDARD CHARACTERISTICS EXAMPLE OF APPLICATION CIRCUIT 1. FREQUENCY-VOLTAGE CONVERSION CIRCUIT 2. FREQUENCY DETECTION CIRCUIT RECOMMENDED CONDITION PART NAME MIN CT 1000 RT 20 fIN MAX UNIT pF k 5 kHz 4 2002-02-27 TA8029S PACKAGE DIMENSIONS Weight: 0.92g (Typ.) 5 2002-02-27 TA8029S RESTRICTIONS ON PRODUCT USE 000707EAA_S * TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the "Handling Guide for Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc.. * The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. * The information contained herein is subject to change without notice. 6 2002-02-27