ALD4501PEL

ADVANCED LINEAR DEVICES, INC. ALD4501 QUAD PRECISION HIGH SPEED MICROPOWER TIMER GENERAL DESCRIPTION APPLICATIONS. The ALD4501 timer is a high performance QUAD monolithic timing circuit built with advanced silicon gate CMOS technology. It offers the benefits of high input impedance, thereby allowing smaller timing capacitors and longer timing cycle; high speed with typical cycle time of 500ns; low power dissipation for battery operated environment; and reduced supply current spikes allowing smaller and lower cost decoupling capacitors. Each of the four timers can be independently operated in either the monostable, astable, or 50% duty cycle mode. • High speed one-shot (monostable) pulse generation • Precision timing • Sequential timing • Long delay timer • Pulse width and pulse position modulation • Missing pulse detector • Frequency divider • Synchronized timer Each timer is capable of producing accurate time delays and oscillations in both monostable and astable operation. It operates in the one-shot (monostable) mode or 50% duty cycle free running oscillation mode with a single resistor and one capacitor. The inputs and outputs are fully compatible with CMOS, NMOS or TTL logic. There are three matched internal resistors (approximately 200KΩ each) that set the threshold and trigger levels at two-thirds and one-third respectively of V+. These levels can be adjusted by using the control terminal. When the trigger input is below the trigger level, the output is in the high state and sourcing 2mA. When the threshold input is above the threshold level at the same time the trigger input is above the trigger level, the internal flip-flop is reset, the output goes to the low state and sinks up to 10mA. The reset input overrides all other inputs and when it is active (reset voltage less than 1V), the output is in the low state. All four timers share the same control and reset pins so that timing functions are synchronized. FEATURES • • • • • • • • • • • High speed operation -- 2MHz typical oscillation at 5V Each discharge output sinking current: 40mA at 5V Guaranteed low operating supply voltage of 2 to 12V Each timer is functionally equivalent to NE555 with greatly expanded high and low frequency ranges High speed, low power, monolithic CMOS technology Low supply current: 150µA typical Extremely low trigger, threshold and reset currents: 10pA typical Operates in both monostable and astable modes Fixed 50% duty cycle or adjustable duty cycle CMOS, NMOS and TTL compatible input/output Low supply current spikes PIN CONFIGURATION RST 1 20 V+ DSC1 2 19 OUT1 TRIG1 3 18 THRES1 DSC2 4 17 OUT2 TRIG2 5 16 THRES2 DSC3 6 15 OUT3 TRIG3 7 14 THRES3 DSC4 8 13 OUT4 TRIG4 9 12 THRES4 10 11 CONT V- SEL, PEL, DE PACKAGES BLOCK DIAGRAM (EACH TIMER) V+ RESET THRESHOLD ORDERING INFORMATION (“L” suffix denotes lead-free (RoHS)) 0°C to +70°C Operating Temperature Range * 0°C to +70°C -55°C to +125°C 20-Pin Small Outline Package (SOIC) 20-Pin Plastic DIP Package 20-Pin CERDIP Package ALD4501SEL ALD4501PEL ALD4501DE CONTROL R R OUTPUT R S TRIGGER DISCHARGE R V- * Contact factory for leaded (non-RoHS) or high temperature versions. Rev 2.0 ©2010 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, CA 94089-1706 Tel: (408) 747-1155 Fax: (408) 747-1286 www.aldinc.com ABSOLUTE MAXIMUM RATINGS Supply voltage, V+ Input voltage range Power dissipation Operating temperature range 13.2V -0.3V to V+ +0.3V 600 mW 0°C to + 70°C -55°C to +125°C -65°C to +150°C +260°C SEL, PEL packages DE package Storage temperature range Lead temperature, 10 seconds OPERATING ELECTRICAL CHARACTERISTICS TA = 25oC V+ = +5V unless otherwise specified Parameter Symbol Supply Voltage V+ Supply Current IS Timing error / Astable mode Initial Accuracy terr Drift with Temperature 1 Drift with Supply Voltage 1 ∆t/∆T ∆t/∆V+ Threshold Voltage VTH 3.233 3.333 3.433 V Trigger Voltage VTRIG 1.567 1.667 1.767 V Trigger Current 2 ITRIG .01 0.4 nA Reset Voltage VRST 0.7 1.0 V Reset Current 2 IRST .01 0.4 nA Threshold Current 2 ITH .01 0.4 nA Control Voltage Level VCONT 3.333 3.433 V Output Voltage Drop (Low) VOL 0.2 0.4 V ISINK = 10mA Output Voltage Drop (High) VOH V ISOURCE = -2mA Rise Time of Output 1 tr 10 20 ns RL = 10MΩ Fall Time of Output 1 tf 10 20 ns CL = 10pF Discharge Transistor Leakage Current IDL .01 Discharge Voltage Drop VDISC 0.5 0.2 Maximum Frequency Astable Mode fMAX 2 Minimum Trigger Pulse Width1 tTRIG 50 Notes: 1 2 ALD4501 Min Typ Max 2 3.233 4.2 Test Conditions 12 V 150 270 µA Outputs Unloaded 1.0 2.6 % C = 0.1µF ppm/°C %/V RA = 1KΩ RB = 1KΩ 10.0 0.1 0.4 Unit 4.6 nA 1.0 0.4 100 V V I DISCHARGE = 40mA I DISCHARGE = 15mA MHz RA = 470Ω RB = 200Ω CT =100pF ns Sample tested parameters. Consists of junction leakage currents with strong temperature dependence. Advanced Linear Devices 2 of 7 TYPICAL PERFORMANCE CHARACTERISTICS MINIMUM PULSE WIDTH REQUIRED FOR TRIGGERING 800 100 50 V+ = 12V TA = 25°C MINIMUM PULSE WIDTH (ns) DISCHARGE SINK CURRENT (mA) DISCHARGE OUTPUT SINK CURRENT AS A FUNCTION OF DISCHARGE LOW VOLTAGE V+ = 5V 20 V+ = 2V 10 5.0 2.0 1.0 0.5 0.2 700 TA = 25°C 600 500 V+ = 2V 400 V+= 5V 300 V+ =12V 200 100 0 0.1 0.01 0.02 0.05 0.1 0.2 0.5 1.0 FREE RUNNING FREQUENCY AS A FUNCTION OF RA, RB AND C ( RA- 2RB) 10 µF 1 µF 10 10 100 nF 10 nF 10 0M 1 nF 1M 0K Ω M Ω 10 1K KΩ Ω Ω Ω FREQUENCY CHANGE (%) TA = 25°C 100 µF 100 pF +3 +2 +1 0 -1 -2 -3 -4 0.1 0 1.0 10 100 1K 10K 100K 1M 10M 100M 2 FREQUENCY (Hz) SUPPLY CURRENT (µA) RA Ω Ω 10 0K Ω K 1K 10 CAPACITANCE 1 nF Ω 1M MΩ Ω 10 0M 10 Ω 1G 10 12 270 240 210 TA= - 40°C 180 TA= + 20°C 150 TA= + 85°C 120 90 60 30 0 100 pF 100ns 1µs 10µs 100µs 1ms 10ms 100ms 1s 10s 100s 0 2 4 6 8 10 12 SUPPLY VOLTAGE (V) TIME DELAY ALD4501 8 300 TA = 25°C 100 µF 10 nF 6 SUPPLY CURRENT AS A FUNCTION OF SUPPLY VOLTAGE 10 mF 100 nF 4 SUPPLY VOLTAGE (V) TIME DELAY IN THE MONOSTABLE MODE AS A FUNCTION OF RA AND C 1 µF 40 +4 1 mF 10 µF 30 FREQUENCY CHANGE IN THE ASTABLE MODE AS A FUNCTION OF SUPPLY VOLTAGE 10 mF 1 mF 20 LOWEST VOLTAGE LEVEL OF TRIGGER PULSE ( % V+ ) DISCHARGE LOW VOLTAGE (V) CAPACITANCE 10 0 Advanced Linear Devices 3 of 7 TYPICAL PERFORMANCE CHARACTERISTICS (cont'd) OUTPUT SOURCE CURRENT AS A FUNCTION OF OUTPUT VOLTAGE OUTPUT SINK CURRENT AS A FUNCTION OF OUTPUT VOLTAGE TA = 25°C 50 OUTPUT SOURCE CURRENT (mA) OUTPUT SINK CURRENT (mA) 100 V+ = 5V V+ = 12V 20 10 V+ = 2V 5.0 2.0 1.0 0.5 0.2 0.1 0.01 0.02 0.05 0.1 0.2 0.5 -0.1 -0.2 V+ = 2V -0.5 V+ = 5V V+ = 12V -1.0 -2.0 -5.0 -10 -20 -50 -100 1.0 -0.5 -1.0 OUTPUT VOLTAGE (V) -0.2 -0.1 -0.05 -0.02 -0.01 OUTPUT VOLTAGE (V) (REFERENCED TO V+) TYPICAL APPLICATIONS QUAD ASTABLE MODE OPERATION ( FREE RUNNING OSCILLATOR ) QUAD MONOSTABLE MODE OPERATION ( ONE SHOT PULSE ) V+ V+ V+ 1 1 20 OUT1 2 19 18 OUT2 INPUT 1 3 R2 4 16 OUT3 INPUT 2 5 R3 6 14 OUT4 INPUT 3 7 R4 8 INPUT 4 9 12 10 11 20 RA1 R1 2 19 3 18 4 17 5 16 6 15 7 14 RB1 RA2 C1 RB2 RA3 C2 17 15 RB3 RA4 C3 8 13 9 12 10 11 13 RB4 DELAY 1 C1 DELAY 2 C2 DELAY 3 C3 DELAY 4 C4 C4 V- V- Pulse Delay td = 1.1RC Frequency f = 1.46/ ( RA + 2RB ) C Duty Cycle DC = RB/ ( RA + 2RB ) SYNCHRONIZED TIMING GENERATORS V+ 1 20 2 19 3 18 OUT 1 R TIMER 1 C 4 17 5 16 OUT 2 R TIMER 2 6 15 7 14 C OUT 3 R TIMER 3 C TIMER 4 ALD4501 8 13 9 12 10 11 R C Advanced Linear Devices Timer 4 oscillates in free running mode ( 50 % Duty Cycle ) and drives the trigger inputs of timers 1,2,3, each with independently set time delays. 4 of 7 SOIC-20 PACKAGE DRAWING 20 Pin Plastic SOIC Package E S (45°) 1 Millimeters D Dim Min A 2.15 Max 2.90 Min 0.085 Max 0.114 A1 0.10 0.30 0.004 0.012 b 0.35 0.45 0.014 0.018 c 0.23 0.28 0.009 0.011 D-20 12.50 13.30 0.492 0.524 E 7.25 8.00 0.285 0.315 1.27 BSC e A e A1 b Inches 0.050 BSC H 9.80 10.60 0.386 0.417 L 0.60 2.937 0.024 0.037 Ø 0° 8° 0° 8° S 0.25 0.75 0.010 0.030 S (45°) H L ALD4501 C O Advanced Linear Devices 5 of 7 PDIP-20 PACKAGE DRAWING 20 Pin Plastic DIP Package E Millimeters E Dim Min Max Min A 3.81 5.08 0.105 Max 0.200 A1 0.38 1.27 0.015 0.050 A2 1.27 2.03 0.050 0.080 b 0.89 1.65 0.035 0.065 b1 0.38 0.51 0.015 0.020 c 0.20 0.30 0.008 0.012 D-20 24.89 26.92 0.980 1.060 E 5.59 7.11 0.220 0.280 E1 7.62 8.26 0.300 0.325 e 2.29 2.79 0.090 0.110 e1 L 7.37 7.87 0.290 0.310 2.79 3.81 0.110 0.150 S-20 1.02 2.03 0.040 0.080 ø 0° 15° 0° 15° D S A2 A1 e b b1 A L Inches c e1 ALD4501 ø Advanced Linear Devices 6 of 7 CERDIP-20 PACKAGE DRAWING 20 Pin CERDIP Package E E1 Millimeters D A1 s A Dim A Min 3.55 Max 5.08 Min 0.140 Max 0.200 A1 1.27 2.16 0.050 0.085 b 0.97 1.65 0.038 0.065 b1 0.36 0.58 0.014 0.023 C 0.20 0.38 0.008 0.015 D-20 -- 26.92 -- 1.060 E 5.59 7.87 0.220 0.310 E1 7.73 8.26 0.290 0.325 e L2 b b1 e L1 0.100 BSC 2.54 BSC e1 L Inches 0.300 BSC 7.62 BSC L 3.81 5.08 0.150 0.200 L1 3.18 -- 0.125 -- L2 0.38 1.78 0.015 0.070 S -- 2.49 -- 0.098 Ø 0° 15° 0° 15° C e1 ALD4501 ø Advanced Linear Devices 7 of 7