UNISONIC TECHNOLOGIES CO., LTD LM556 LINEAR INTEGRATED CIRCUIT DUAL TIMER DESCRIPTION The UTC LM556 dual monolithic circuit is a highly stable controller capable of producing accurate delays or oscillation. The UTC LM556 is the dual of UTC NE555; timing is provided an external resistor and capacitor for each function. The two timers operate independently of each other, sharing only VCC and GND. The circuits may be triggered and reset on falling wave forms. The output structures may sink or source 200mA. FEATURES *High Current Driver Capability(=200mA) *Adjustable Duty Cycle *Timing From μSec to Hours *Temperature Stability of 0.005%/C *TTL Compatible *Operates in Both Astable and Monostable Modes ORDERING INFORMATION Ordering Number Lead Free LM556L-D14-T - Halogen Free LM556G-D14-T LM556G-S14-R Package Packing DIP-14 SOP-14 Tube Tape Reel MARKING DIP-14 www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd SOP-14 1 of 3 QW-R106-004.D LM556 LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 3 QW-R106-004.D LM556 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (TA=25°C, unless otherwise specified) PARAMETER Supply Voltage Power Dissipation Lead Temperature(soldering 10 sec.) Operating Temperature Storage Temperature SYMBOL VCC PD TLEAD TOPR TSTG RATINGS 16 600 300 -20~85 -65~150 UNIT V mW °C °C °C ELECTRICAL CHARACTERISTICS ( TA=25°C ,VCC=5 to 15V, unless otherwise specified) PARAMETER Supply voltage Supply Current(two timers) (low state), (Note 1) SYMBOL VCC Timing Error(monostable) Initial Accuracy(Note 2) Drift with Temperature Drift with Supply Voltage Timing Error(astable) Initial Accuracy(Note 2) Drift with Temperature Drift with Supply Voltage ICC RA=2KΩ to 100KΩ C=0.1μF, T=1.1RC ACCUR t/T t/VCC RA=1KΩ to 100KΩ C=0.1μF, VCC=15V VC Threshold Voltage VTH Threshold Current(Note 3) ITH Trigger Voltage VtR Trigger Current Reset Voltage(Note 4) Reset Current ItR Vrst Irst VOL MIN 4.5 VCC=5V, RL= VCC=15V, RL= ACCUR t/T t/VCC Control Voltage Low Output Voltage TEST CONDITIONS 5 16 VCC=15V VCC=5V VCC=15V VCC=5V 9.0 2.6 8.8 2.4 VCC=5V VCC=15V VtR=0 1.1 4.5 0.4 VCC=15V, ISINK=10mA VCC=15V, ISINK=50mA VCC=15V, ISINK=100mA VCC=15V, ISINK=200mA VCC=5V, ISINK=5mA VCC=5V, ISINK=8mA High Output Voltage VOH VCC=15V, ISOURCE=200mA VCC=15V, ISOURCE=100mA VCC=5V, ISOURCE=100mA TYP 12.75 2.75 MAX 16 12 30 UNIT V mA mA 0.75 50 0.1 % ppm/°C %/V 2.25 150 0.3 10.0 3.33 10.0 3.33 30 1.6 5 0.01 0.6 0.03 0.1 0.4 2 2.5 0.15 0.25 12.5 13.3 3.3 100 100 20 % ppm/°C %/V V V V V nA V V μA V mA V V V V V V V V V nSec nSec nA 11.0 4.0 11.2 4.2 250 2.2 5.6 2.0 1.0 0.6 0.25 0.75 3.2 0.25 0.35 Rise Time of Output tR 300 Fall Time of Output tF 300 Discharge Leakage Current ILKG 100 Matching Parameter Initial Accuracy(Note 5) ACCUR 1 2 % RA, RB=1KΩ to 100KΩ Drift with Temperature t/T 10 ppm/°C C=0.1μF, VCC=15V 0.2 0.5 %/V Drift with Supply Voltage t/VCC Notes: 1.Supply current when output is high is typically 1mA less at VCC 5V. 2. Tested at VCC=5V and VCC=15V. 3: This will determine the maximum value of RA+RB for 15V operation, The maximum total is R=20MΩ, and for 5V operation the maximum total is R=6.6MΩ. 4: As reset voltage lower, timing is inhibited and then the output goes low. 5: Matching parameters refer to the difference between performance parameters of each timer section in the monostable mode. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 3 QW-R106-004.D LM556 LINEAR INTEGRATED CIRCUIT UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 3 QW-R106-004.D