UPC1555C

UPC1555 NEC | Alldatasheet

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© 1986 The µPC1555 is a powerful integrated circuit. Adding a few external parts to it can turn it into various types of timing signal generators, such as monostable and astable multivibrators. It has trigger, threshold, and control pins. Inputting a signal to the reset pin can stop the circuit operation easily. In addition, the output can sink current as high as 200 mA (maximum). So, it can be used to drive relays and lamps. TYPICAL CHARACTERISTICS FEATURES

• Supply voltage : 4.5 to 16 V • Monostable and astable oscillation
• Circuit current (VCC = 5 V) : 3 mA • Interfacing directly with TTL-level signals
• Output current capacity : 200 mA • Variable duty cycle
• Temperature stability : 0.005%/°C
• Rising and falling time : 100 ns ORDERING INFORMATION PIN CONFIGURATION (TOP VIEW) Part number Package µPC1555C 8-pin plastic DIP (300 mil) µPC1555G2 8-pin plastic SOP (225 mil) EQUIVALENT CIRCUIT DATA SHEET Document No. G10649EJ6V0DS00 (6th edition) (Previous No. IC-1979) Date Published November 1995 P Printed in Japan TIMER CIRCUIT MOS INTEGRATED CIRCUIT Bipolar Analog Integrated Circuit µPC1555 1GND Trigger Output Reset VCC Discharge Threshold Control voltage 7RCOMP COMP R R VREF Flip-flop Output stage VCC R 2 5 2 (3VCC ) GND Q 5 R 4 R 5 Q 11Q 6 Q 3Q 2 Q 8 Q 15 Q 22 Q 27 Q 18 Q 19 Q 20 Q 23 Q 26 Q 16 Q 21 Q 17 Q 24 Q 28 Q 7 Q 12 Q 25 Q 14 Q 13 Q 10 Q 9 Q 1 Q 4 1 kΩ R 3 5 kΩ R 7 4.7 kΩ R 8 100 Ω 3.3kΩ R 10 120 R 6 7.5kΩ R 11 6.2 kΩ R 12 3.9 kΩ R 1 10 kΩ 5 kΩ 5 kΩ Output Threshold Control Trigger Reset Discharge R 9

µPC1555 ABSOLUTE MAXIMUM RATINGS (TA = 25°C) Notes 1.Be sure to use the product within the Power dissipation. 2. For TA ≥ 25°C, the total loss is derated at TJ MAX = 125°C and –6 mW/°C. (See the PT-TA characteristic curve.) 3. For TA ≥ 25°C, the total loss is derated at TJ MAX = 125°C and –4.4 mW/°C. (See the PT-TA characteristic curve.) 4. This is an external voltage that can be applied to the output pin without deteriorating the quality of the product or causing damage to the product. Be sure to use the product within the rated value under any conditions where coils are inserted or power is turned on or off. The output voltage that can be obtained during normal operation is within the output saturation voltage range. RECOMMENDED OPERATING CONDITIONS (T A = 25°C) Parameter Symbol Conditions MIN. MAX. Unit Supply voltage V CC 4.5 16 V Oscillation frequency f V CC = 5 to 15 V 0.1 100 k Hz Output pulse width t W (OUT) VCC = 5 to 15 V 10 µ 10 Sec Input voltage (trigger, threshold) VIN 0V CC V Input voltageNote 5 (control) V IN 3.0 V CC • 1.5 V Reset voltage (high level) V reset H VCC = 5 to 15 V 1.0 V CC V Reset voltage (low level) V reset L VCC = 5 to 15 V 0 0.4 V Note 5. This parameter defines the voltage that can be applied when a PWM mode application circuit is configured by applying an external voltage to the control pin. Usually, a capacitance of 0.01 µF is connected as shown in the application circuit. Rated value Parameter Symbol µPC1555C µPC1555G Unit Supply voltage V CC –0.3 to +18 –0.3 to +18 V Input voltage V IN –0.3 to VCC + 0.3 –0.3 to V CC + 0.3 V (trigger, threshold, reset, control) Applicable output voltage Note 4 VO –0.3 to VCC + 0.3 –0.3 to V CC + 0.3 V (output and discharge) Output current I O 200Note 1 200Note 1 mA Power dissipation P T 600Note 2 440Note 3 mW Operating temperature T A –20 to +80 –20 to +80 °C Storage temperature T stg –55 to +125 –55 to +125 °C

µPC1555 ELECTRICAL CHARACTERISTICS (TA = 25°C, VCC = 5 to 15 V) Parameter Symbol Conditions MIN. TYP. MAX. Unit Supply voltage V CC 4.5 16 V Supply current I CC VCC = 5 V, RL = ∞ , VO = “L”Note 6 03 6 m A VCC = 15 V, RL = ∞ , VO = “L”Note 6 01 0 1 5 m A Threshold voltage V th 2/3 VCC V Threshold current I th Note 7 0 0.1 0.25 µA Trigger voltage V tr VCC = 15 V 5 V VCC = 5 V 1.67 V Trigger current I tr 0.5 µA Reset voltage V reset Note 8 0.4 0.7 1.0 V Reset current I reset 0.1 mA Control voltage V cont VCC = 15 V 9.0 10 11 V VCC = 5 V 2.6 3.33 4 V Output saturation voltage “L” V OL VCC = 15 V, ISINK = 10 mA 0 0.1 0.25 V VCC = 15 V, ISINK = 50 mA 0 0.4 0.75 V VCC = 15 V, ISINK = 100 mA 0 2.0 2.5 V VCC = 15 V, ISINK = 200 mA 2.5 V VCC = 5 V, ISINK = 5 mA 0 0.1 0.35 V Output saturation voltage “H” V OH VCC = 15 V, ISOURCE = 200 mA 12.5 V VCC = 15 V, ISOURCE = 100 mA 12.75 13.3 15.0 V VCC = 5 V, ISOURCE = 100 mA 2.75 3.3 5.0 V Propagation delay (L → H) t PLH 200 ns Propagation delay (H → L) t PHL 200 ns Minimum trigger pulse width t W (tr) VCC = 15 V, Vtr min. = 2.5 V 25 ns Minimum output pulse width t W (OUT) VCC = 15 V, Vtr min. = 2.5 V 6 µstW (tr) = 3 µs Minimum reset pulse width t w (reset) VCC = 15 V, Vtr min. = 0 V 900 ns Timing error Astable multivibrator Initial accuracy R A, RB = 1 to 100 kΩ 1% Temperature drift C = 0.1 µF 50 ppm/ °C Supply voltage drift 0.01 %/V Notes 6.When the output is “H”, the circuit current decreases by approximately 1 mA (when VCC = 5 V). 7. The maximum allowable value for RA + RB is determined for a supply voltage of 15 V. The maximum value is 20 MΩ . 8. When the reset pin is driven to a low level, discharge TrQ 14 is turned on, stopping oscillation (the output state is undefined).

µPC1555 CHARACTERISTIC CURVES (TA = 25°C, TYP.) Minimum trigger pulse width characteristic I CC -VCC characteristic ISOURCE -(VCC -VOUT ) characteristic I SINK -VOUT characteristic ISINK -VOUT characteristic I SINK -VOUT characteristic 1.2 VCC = 15 V 1.0 0.8 0.6 0.4 0.2 0123456 TJ = 125°C TI = 25°C Minimum trigger pulse width tW (tr) ( s) Minimum trigger pulse voltage Vtr min. (V) µ 10 15 70°C –20°C TA = 25°C Supply voltage VCC (V) Circuit current ICC (mA) 70°C –20°C 1 3 5 10 30 50 100 T A = 25°C Output source current ISOURCE (mA) Output saturation voltage VCC -VOUT (V) 0.1 0.01 1.0 3.0 5.0 10 30 50 100 VCC = 5 V T A = –20 Output sink current ISINK (mA) Output saturation voltage VOUT (V) 0.1 0.01 1.0 3.0 5.0 10 30 50 100 VCC = 10 V 25°C 70°C –20°C TA = 25°C 70°C –20°C Output sink current ISINK (mA) Output saturation voltage VOUT (V) 0.1 0.01 1.0 3.0 5.0 10 30 50 100 VCC = 10 V –20°C TA = 25°C 70°C –20°C Output sink current ISINK (mA) Output saturation voltage VOUT (V)

µPC1555 Propagation delay characteristic Discharge pin I SINK -VSAT characteristic PT-TA characteristic ss tW -tW (tr) characteristic ss tW -ttr min. characteristic 246 V CC = 15 V Vtr min = 2.5 V 81 0 Trigger pulse width tW (tr) ( s) Minimum output pulse width - trigger pulse width s tW ( s) µ µ 700 600 500 400 300 200 100 C G 40 60 80 100 Ambient temperature TA (°C) Total loss PT (mW) 12345 V CC = 15 V tW(tr) = 5 sµ Minimum trigger pulse voltage Vtr min. (V) Minimum output pulse width - trigger pulse width s tW ( s)µ 1.2 1.0 0.8 0.6 0.4 0.2 0.1 0.2 0.3 T A = 25°C VCC = 5 V VCC = 10 V,15 V Minimum trigger pulse voltage (×VCC ) Propagation delay ( s) µ VCC = 5 V TA = 70°C 25°C –20°C 1000 100 1.0 0.01 0.1 1 10 100 Discharge pin (pin 7) sink current ISINK (mA) Discharge pin saturation voltage VSAT (mV)

µPC1555 PIN FUNCTIONS 1. Trigger pin (pin 2) : Supplying one-third of VCC to the trigger pin triggers the circuit, changing the output voltage from low to high. 2. Output pin (pin 3) : The maximum output current is 200 mA. Be careful not to exceed the total loss (see the PT-TA characteristic curve). 3. Reset pin (pin 4) : Supplying 0.4 V or less to the reset pin stops the circuit operation (such as monostable or astable multivibrator operation). When not used, the reset pin should be clamped at 1 V to V CC . 4. Control voltage (pin 5) : This voltage determines the threshold level of the comparator. It is set to two-thirds of VCC . It is possible to configure a PWM (pulse width modulation) or PPM (pulse position modulation) mode application circuit by supplying a control voltage from the outside. When this pin is not in use, it should be bypassed using a capacitor of approximately 0.01 µF for more table circuit operation. 5. Threshold pin (pin 6) : The values of an external capacitor (C) and resistor (R) connected to this pin determine the width of the output pulse. 6. Discharge pin (pin 7) : This pin is used to discharge an external capacitor (if connected). It operates, when the internal flip-flop circuit is turned on, or a reset signal is applied.

µPC1555 APPLICATION CIRCUITS (1) Monostable multivibrator Fig. a Monostable Multivibrator Example Fig. b Monostable Response Waveform Fig. c Interrelationships among Output Pulse Width, R1, and C1 (approxi- mate value obtained by calculation) When the µPC1555 is configured as shown in Fig. a, it functions as a monostable multivibrator. Applying a voltage one-third as high as VCC or less (trigger pulseNote 9) to pin 2 (trigger pin) drives the output to a high level. Under this condition, capacitor C 1 starts charging through resistor R1. When C1 is charged up to two-thirds as high as VCC , pin 6 (threshold pin) is turned on and inverted to a low level. At this point, C 1 starts discharging through pin 7. When a trigger pulse is applied to pin 2 again, the same operation is repeated. Fig. b shows this operation. A capacitor connected to pin 5 functions as a nose filter for the control voltage. If pin 4 (reset pin) is connected to 1 V or higher (for example, by being connected to V CC ), the circuit operation can be stopped by switching it from 2 V or higher to a GND level. The output pulse width (delay) is determined theo- retically by (see Fig. c): t = 1.1 • C1 • R1 The value obtained by this equation is only an approximate value, however. If it is necessary to obtain an accurate output pulse width, determine R1 and C1 through actual measurement and confirmation; a trimmer should be used as required. Moreover, R1 should be 300 Ω or higher. Notes 9. Keep the trigger pulse width smaller than the output pulse width. 10. If the load is connected across the output and GND pins, a “staircase” occurs in the output waveform. The application circuits and their parameters are for references only and are not intended for use in actual design-in's. OUTPUT TRIGGER R L VCC = 5 to 15 V R 1 C 1 Control voltage 0.01 Fµ PC1555µ Note 10 "H" "L" "L" "H" (R1 = 9.1 kΩ , C1 = 0.01 F, RL = 1 kΩ )µ t = 0.1 ms/DIV Trigger input voltage: 5 V/DIV Output voltage: 5 V/DIV Capacitor (C1) voltage: 2 V/DIV µµ 1.0 k Ω 10 k Ω 100 k Ω 1 M Ω 10 M Ω 100 s 100 s 1.0 ms ms 100 ms 1.0 s s 1.0 0.1 0.01 0.001 t = 1.1 C1 R 1 (R1) µCapacitor C1 capacitance ( F) Output pulse width t

µPC1555 When the µPC1555 is used in a circuit configuration shown in Fig. d, the circuit is triggered by itself to operate as an astable multivibrator, because pin 2 (trigger pin) and pin 6 (threshold pin) are connected to each other. When the output voltage is high, capacitor C 1 is charged through R1 and R2. When C1 is charged up to a voltage two-thirds as high as VCC , the threshold pin is turned on, and the output pin becomes low. At this point C1 starts discharging through R2. When C1 discharges, and the voltage across C1 decreases to a voltage one-third as high as VCC , the trigger pin is turned on, and the output voltage becomes high, causing the charge current to flow into C1 through R1 and R2 again. This operation is shown in Fig. e. Because C1 repeats charging and discharging between one-third as high as VCC and two-thirds as high as VCC , the oscillation frequency is not affected by the supply voltage. Oscillation is represented theoretically using the following expressions. Therefore, the oscillation frequency is (see Fig. f for reference) :f = 1 = 1.44 (4) T( R 1 + 2R2) C1 The duty cycle is determined by the equation (5):D = R2 (5) R 1 + 2R2 The values obtained this way are approximate values, however. If it is necessary to obtain an accurate oscillation frequency, determine R1, R2, and C1 through actual measurement and confirmation; a trimmer should be used as required. Moreover, R1 and R2 should be 300 Ω or higher. Note 10. If the load is connected across the output and GND pins, a “staircase” occurs in the output waveform. (2) Astable multivibrator example Fig. d Astable Multivibrator Example Fig. e Astable Multivibrator Response Waveform Fig. f Interrelationships among Oscillation Frequency, R1, R2, and C1 (approximate value obtained by calculation) VCC = 5 to 15 V C 1 OUTPUT 0.01 F R L R 1 R 2 µ PC1555µ Control voltage Note 10 (Free running frequency) t = 0.5 ms/DIV (R1 = R2 = 4.8 kΩ , C1 = 0.1 F, RL = 1 kΩ ) "H" "H" "H" "L" "L" µ Output voltage: 5 V/DIV Capacitor (C1) voltage: 1.7 V/DIV 100 0.1 1.0 10 100 1.0 k 10 k 100 k 1.0 0.1 0.01 0.001 10 M Ω 1.0 M Ω 100 k Ω 10 k Ω 10 k Ω (R1 + 2R2) Oscillation frequency f (Hz) Capacitor C1 capacitance ( F) µ

µPC1555 8PIN PLASTIC DIP (300 mil) ITEM MILLIMETERS INCHESNOTES 1) Each lead centerline is located within 0.25 mm (0.01 inch) of its true position (T.P.) at maximum material condition. P8C-100-300B,C-1 N 0.25 0.01 P 0.9 MIN. 0.035 MIN. R 0~15 ° 0~15 ° A 10.16 MAX. 0.400 MAX. B 1.27 MAX. 0.050 MAX. F 1.4 MIN. 0.055 MIN. J 5.08 MAX. 0.200 MAX. D 0.50±0.10 0.020 +0.004 –0.005 H 0.51 MIN. 0.020 MIN. I 4.31 MAX. 0.170 MAX. L 6.4 0.252 M 0.25 0.010 +0.004 –0.003 +0.10 –0.05 2) ltem "K" to center of leads when formed parallel. M A RM PI J H G F DN C B L K

µPC1555

8 PIN PLASTIC SOP (225 mil)

A M C D F NOTE Each lead centerline is located within 0.12 mm (0.005 inch) of its true position (T.P.) at maximum material condition. 1 4 M E G B P H I J K L N detail of lead end ITEM MILLIMETERS INCHES A B C E F G H I J 5.37 MAX. 1.27 (T.P.) 1.8 MAX. 1.49 6.5±0.3 0.78 MAX. 0.12 1.1 4.4 M 0.1±0.1 N 0.212 MAX. 0.031 MAX. 0.004±0.004 0.071 MAX. 0.059 0.256±0.012 0.173 0.043 0.005 0.050 (T.P.) S8GM-50-225B-4 P3 ° 3°+7° D 0.40 0.016+0.10 –0.05 K 0.15 0.006+0.10 –0.05 L 0.6±0.2 0.024 0.10 –3° +7° –3° 0.004 +0.008 –0.009 +0.004 –0.002 +0.004 –0.003

µPC1555 RECOMMENDED SOLDERING CONDITIONS The conditions listed below shall be met when soldering the µPC1555. Please consult with our sales offices in case any other soldering process is used, or in case soldering is done under different conditions. Surface-Mount Devices For details of the recommended soldering conditions, refer to our document SMD Surface Mount Technology Manual (IEI-1207). µPC1555G2 Note Exposure limit before soldering after dry-pack package is opened. Storage conditions: Temperature of 25°C or less and maximum relative humidity of 65% or less Caution Do not apply more than a single process at once, except for “Partial heating method.” Through-Hole Mount Devices µPC1555C Soldering process Soldering conditions Symbol Infrared reflow Peak package’s surface temperature: 230 °C IR30-00 Reflow time: 30 seconds or less (at 210°C or more) Maximum allowable number of reflow processes: 1 Exposure limit: NoneNote VPS Peak package’s surface temperature: 215 °C VP15-00 Reflow time: 40 seconds or less (at 200°C or more) Maximum allowable number of reflow processes: 1 Exposure limit: NoneNote Wave soldering Temperature in the soldering vessel: 260 °C or less WS60-00 Soldering time: 10 seconds or less Maximum allowable number of reflow processes: 1 Exposure limit: NoneNote Partial heating method Pin temperature: 300°C or less Flow time: 10 seconds or less Exposure limit: None Note Soldering process Soldering conditions Wave soldering Temperature in the soldering vessel: 260°C or less Soldering time: 10 seconds or less REFERENCE Document name Document No. NEC Semiconductor Device Reliability/Quality Control System IEI-1212 Quality Grade on NEC Semiconductor Devices IEI-1209 Semiconductor Device Mounting Technology Manual IEI-1207 Semiconductor Device Package Manual IEI-1213 Guide to Quality Assurance for Semiconductor Devices MEI-1202 Semiconductor Selection Guide MF-1134

µPC1555 [MEMO] M4 94.11 No part of this document may be copied or reproduced in any form or by any means without the prior written consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in this document. NEC Corporation does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from use of a device described herein or any other liability arising from use of such device. No license, either express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of NEC Corporation or others. While NEC Corporation has been making continuous effort to enhance the reliability of its semiconductor devices, the possibility of defects cannot be eliminated entirely. To minimize risks of damage or injury to persons or property arising from a defect in an NEC semiconductor device, customer must incorporate sufficient safety measures in its design, such as redundancy, fire-containment, and anti-failure features. NEC devices are classified into the following three quality grades: “Standard“, “Special“, and “Specific“. The Specific quality grade applies only to devices developed based on a customer designated “quality assurance program“ for a specific application. The recommended applications of a device depend on its quality grade, as indicated below. Customers must check the quality grade of each device before using it in a particular application. Standard: Computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support) Specific: Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems or medical equipment for life support, etc. The quality grade of NEC devices in “Standard“ unless otherwise specified in NEC's Data Sheets or Data Books. If customers intend to use NEC devices for applications other than those specified for Standard quality grade, they should contact NEC Sales Representative in advance. Anti-radioactive design is not implemented in this product.