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3, 4 and 8 pin automatic shut-off timers january 2002 description the basic ASOT is a cmos integrated circuit timer that can be mask programmed from 2.5 minutes to 32 hours as shown in table 1. the output of the ic is used to turn on a 12v relay and has a duty cycle which can be mask programmed from 5% to 37.5% in 2.5% steps as shown in table 2. the duty cycle can be selected to optimize operation for a particular relay coil. there are 5 different versions of the ic. the ASOT is a 3-pin version housed in a to-92 package. the application schematic is shown in figure 2. when latching switch s1 is closed, the output turns on energizing relay l1 and keeping switch s1 closed. when the programmed time-out expires, the output turns off deenergizing relay l1 and causing switch s1 to open. the ASOTr is a 4-pin version as shown in figure 3. the out- put turns on in the same manner as in the 3-pin version. if momentary switch s2 is closed, the timer resets and starts timing out again. the s2 input has an internal pull-up resistor. every subsequent momentary switch closure resets the timer. as in the 3-pin version, the output remains on until the timeout expires. the ASOTt is also a 4-pin version as shown in figure 4. in this version contacts c1 replace switch s1 and are not accessible. the application of power caused by closing lsi/csi lsi computer systems, inc. 1235 walt whitman road, melville, ny 11747 (631) 271-0400 fax (631) 271-0405 ASOT ASOTr ASOTr1 ASOTt ASOTt1 u l a3800 1 2 3 4 8 5 6 7 v dd gnd out in nc nc nc duty cycle in v dd gnd out in v dd gnd out figure 1. package options dip/soic to-92 sip 8-pin version 4-pin version 3-pin version 1 2 3 4 ASOTr1 and ASOTt1 ASOT ASOTr and ASOTt the momentary switch s2 causes the output to toggle on as in the 3-pin version. if the momentary switch is closed again, the output toggles off causing contact c1 to open and power to be removed. the r2 input has an internal pull-up resistor. the default operaton of the output produces a double duty cycle for the first 10 milliseconds of output activation to increase the pull-in torque of the relay. the option to remove this feature is factory selectable in the ASOT (3-pin), ASOTr (4-pin) and ASOTt (4-pin) versions. there are also two 8-pin versions available which allow the user to change this feature. the ASOTr1 is the 8-pin version used in the figure 3 application and the ASOTt1 is the 8-pin version used in the figure 4 application. in both cases, the duty cycle input has an internal pull-up resistor. tying the input to vss removes the double duty cycle feature. advance information features: ? minimizes external components and power consumption ? factory calibrated timer ? mask programmable from 2.5 minutes to 32 hours applications control of household appliances, heaters, lighting and ac motors. timeout numbers auto shut-off times 01 - 10 0h 0h 0h 0h 0h 0h 0h 0h 0h 0h 2.5m 5m 7.5m 10m 12.5m 15m 17.5m 20m 22.5m 25m 11 - 20 0h 0h 0h 0h 0h 0h 0h 1h 1h 1h 30m 35m 37.5m 40m 45m 50m 52.5m 0m 10m 15m 21 - 30 1h 1h 1h 1h 2h 2h 2h 2h 3h 3h 20m 30m 40m 45m 0m 20m 30m 40m 0m 20m 31 - 40 3h 4h 4h 5h 5h 6h 6h 7h 8h 9h 30m 0m 40m 0m 20m 0m 40m 0m 0m 0m 41 - 50 9h 10h 10h 12h 14h 16h 20h 24h 28h 32h 20m 0m 40m 0m 0m 0m 0m 0m 0m 0m duty cycle numbers duty cycle percentages 01 - 07 5 7.5 10 12.5 15 17.5 20 08 - 14 22.5 25 27.5 30 32.5 35 37.5 table 1 table 2 7214-011702-1
absolute maximum ratings: (all voltages referenced to v ss ) symbol value unit maximum v dd +85 v input v in +5 to v ss - 0.3 v operating temperature t a 0 to +85 ? storage temperature t stg -65 to +150 ? 7214-011702-2 electrical characeristics: (all voltages referenced to vss) parameter symbol min typ max unit condition shunt regulator voltage v dd 70 75 80 v - regulator sink current i sk - - 10 ma - supply current i dd - - 370 ? v dd = 48v power-on-reset v por 32 37 42 v - por hysteresis v hys 7 - 12 v - output driver - on i o 70 - - ma vo = 5v i o 50 - - ma vo = 3v output driver - off i o - - 50 ? vo = v dd output frequency f o 20.5 21.8 23.11 khz - switch on delay s od - 47 - ms v dd > v por input switching voltage v sw - - 2.5 v ASOTr, ASOTt source current i sc - 20 - ? ASOTr @v in = 0v positive clamp voltage v pc - - 4 v ASOTt @input sink current = 350? negative clamp voltage v nc - - 1 v ASOTt @input sink current = 350? duty cycle select i dc - 20 - ? ASOTr1, ASOTt1 source current @v in = 0v v dd l o a d vss out c1 d2 d1 r1 figure 2. ASOT v dd l o a d vss out c1 d2 d1 r1 in l1 l1 s1 s1 s2 ac ac duty cycle * figure 3. ASOTr, ASOTr1 * this input available only for ASOTr1 v dd l o a d vss out c1 d3 d1 r1 in l1 s1 ac duty cycle * figure 4. ASOTt, ASOTt1 * this input available only for ASOTt1 d2 c1 r2 the information included herein is believed to be accurate and reliable. however, lsi computer systems, inc. assumes no responsibilities for inaccuracies, nor for any infringements of patent rights of others which may result from its use.

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Price & Availability of ASOT

Part #	Manufacturer	Description	Price	BuyNow Qty.
AS5601-ASOT 86AK7269	ams OSRAM Group	Contactless Encoder, 125Deg C, Soic-8; Ic Function:12Bit Programmable Contactless Encoder; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Ic Package Type:Soic; No. Of Pins:8Pins; Operating Temperature Min:-40°C; Product Range:- Rohs Compliant: Yes \|Ams Osram Group AS5601-ASOT	1000: USD1.91 500: USD2.27 250: USD2.53 100: USD2.66 50: USD2.86 25: USD3.07 10: USD3.24 1: USD3.61	2500
AS5600-ASOT 86AK7268	ams OSRAM Group	Proximity Sensor, Smd, 4.5V To 5.5V; Supply Voltage Dc Min:4.5V; Supply Voltage Dc Max:5.5V; Sensor Housing:Smd; No. Of Pins:8Pins; Output Current:500Μa; Operating Magnetic Force Min:-; Product Range:- Rohs Compliant: Yes \|Ams Osram Group AS5600-ASOT	1000: USD1.77 500: USD2.09 250: USD2.33 100: USD2.45 50: USD2.64 25: USD2.83 10: USD3 1: USD3.34	2500
VN5E160ASOTR-E 94T6567	STMicroelectronics	Not Applicable \|Stmicroelectronics VN5E160ASOTR-E		0
DEM-OPA-SOT-1A 29AH3902	Texas Instruments	Unpopulated Pcb, Sot-23 Package Op-Amp; Silicon Manufacturer:Texas Instruments; Silicon Core Number:-; Kit Application Type:Amplifier; Application Sub Type:Operational Amplifier; Kit Contents:Demo Board Dem-Opa-Sot-1A; Product Rohs Compliant: Yes \|TEXAS INSTRUMENTS DEM-OPA-SOT-1A	10: USD6.52 1: USD6.68	0
VN5E050ASOTR-E 94T6566	STMicroelectronics	Lgs Vipower \|Stmicroelectronics VN5E050ASOTR-E		0

Part #	Manufacturer	Description	Price	BuyNow Qty.
AS5601-ASOT AS5601-ASOTCT-ND	ams OSRAM Group	SENSOR ANGLE SMD	5000: USD1.67805 2500: USD1.7436 1000: USD1.83537 500: USD2.17622 250: USD2.42532 100: USD2.5564 25: USD2.9496 10: USD3.12 1: USD3.47	4663
AS5600-ASOT AS5600-ASOTCT-ND	ams OSRAM Group	IC SENSOR MAG ROTARY 12BIT 8SOIC	5000: USD1.55007 2500: USD1.61062 1000: USD1.69539 500: USD2.01024 250: USD2.24032 100: USD2.3614 25: USD2.7248 10: USD2.882 1: USD3.21	2824
DA-SOT223-5-P150 4695-DA-SOT223-5-P150-ND	Artekit Labs	SOT223-5 TO DIP ADAPTER	1000: USD1.13625 500: USD1.24988 250: USD1.28776 100: USD1.3256 50: USD1.3636 25: USD1.5152 10: USD1.704 5: USD1.894 1: USD2.27	240
DA-SOT223-6-P127 4695-DA-SOT223-6-P127-ND	Artekit Labs	SOT223-6 TO DIP ADAPTER	1000: USD1.212 500: USD1.3332 250: USD1.3736 100: USD1.414 50: USD1.4544 25: USD1.616 10: USD1.818 5: USD2.02 1: USD2.42	182
DEM-OPA-SOT-1B 296-19683-ND	Texas Instruments	BOARD DEMO FOR SNGL SOT23 OPAMPS	1: USD6	3

Part #	Manufacturer	Description	Price	BuyNow Qty.
VN5E160ASOTR-E VN5E160ASOTR-E	STMicroelectronics	Single Channel High Side Driver 13V 16-Pin SO W T/R - Tape and Reel (Alt: VN5E160ASOTR-E)		0
VND5E160ASOTR-E VND5E160ASOTR-E	STMicroelectronics	MOSFET DRVR 6A 2-OUT Hi Side Non-Inv 16-Pin SO T/R - Tape and Reel (Alt: VND5E160ASOTR-E)		0
AS5601-ASOT Q65114A0809	ams OSRAM Group	- Tape and Reel (Alt: Q65114A0809)	250000: USD1.5104 25000: USD1.5576 20000: USD1.6048 15000: USD1.652 10000: USD1.6992 5000: USD1.7464 2500: USD1.7936	0
AS5600-ASOT Q65114A0808	ams OSRAM Group	Rotational Type Position Sensor 3V to 3.6V/4.5V to 5.5V 8-Pin SOIC T/R - Tape and Reel (Alt: Q65114A0808)	250000: USD1.3952 25000: USD1.4388 20000: USD1.4824 15000: USD1.526 10000: USD1.5696 5000: USD1.6132 2500: USD1.6568	0
VND5E050ASOTR-E VND5E050ASOTR-E	STMicroelectronics	MOSFET DRVR 2-OUT Hi Side Non-Inv 16-Pin SO T/R - Tape and Reel (Alt: VND5E050ASOTR-E)		0

Part #	Manufacturer	Description	Price	BuyNow Qty.
AS5600-ASOT 985-AS5600-ASOT	ams OSRAM Group	Board Mount Hall Effect / Magnetic Sensors AS5600 Magnetic Sensor 12-Bit	1: USD3.63 10: USD2.72 100: USD2.21 250: USD2.03 500: USD1.85 1000: USD1.73 2500: USD1.67	22091
AS5601-ASOT 985-AS5601-ASOT	ams OSRAM Group	Board Mount Hall Effect / Magnetic Sensors 12-Bit Rotary Sensor Incr Quad 8 to 2048	1: USD3.47 10: USD2.95 100: USD2.51 250: USD2.37 500: USD2.13 1000: USD1.84 2500: USD1.72	4047
LSK489A-SOT-23-6L-CT 722-LSK489ASOT236LCT	Linear Integrated Systems	JFET Low Noise, Low Capacitance, Monolithic Dual, N-Channel JFET	1: USD7.22 10: USD6.19 50: USD5.8 100: USD4.92 200: USD4.84 500: USD4.54	14
DEM-OPA-SO-1A 595-DEM-OPA-SO-1A	Texas Instruments	Amplifier IC Development Tools Unpopulated PCB Comp	1: USD6	33
DEM-OPA-SOT-1A 595-DEM-OPA-SOT-1A	Texas Instruments	Amplifier IC Development Tools Unpopulated PCB Comp	1: USD6.65	28

Part #	Manufacturer	Description	Price	BuyNow Qty.
AS5601-ASOT V72:2272_16131225	ams OSRAM Group	Rotary Position Sensor 5.5V/3.6V Digital Output 8-Pin SOIC T/R	25: USD1.584 10: USD2.173 1: USD2.355	56

Part #	Manufacturer	Description	Price	BuyNow Qty.
AS5601-ASOT 69203550	ams OSRAM Group	Rotary Position Sensor 5.5V/3.6V Digital Output 8-Pin SOIC T/R	25: USD1.584 10: USD2.173 4: USD2.355	56
CMT-741G58A-SOT-23-6 60973764	Cissoid S A	CMT-741G58A-SOT-23-6	5: USD72.446	5

Part #	Manufacturer	Description	Price	BuyNow Qty.
P74FCT374ASOTR	PERF SEMI		842: USD0.8415 315: USD0.8925 96: USD0.9562 28: USD1.5938 9: USD1.9125 2: USD2.55	7000
IDT49FCT3805ASO-T	Integrated Device Technology Inc		1300: USD0.5445 486: USD0.5775 147: USD0.6187 42: USD1.0312 14: USD1.2375 4: USD1.65	2137

Part #	Manufacturer	Description	Price	BuyNow Qty.
PMBT2222A,215 PMBT2222A 215	Nexperia	Bipolar Transistors - BJT SOT23 40V .6A NPN SWITCHING	3000: USD0.0137 6000: USD0.0134 9000: USD0.0131 12000: USD0.0126 30000: USD0.0124 45000: USD0.0119 75000: USD0.0116	2712000
PMBT2907A,215 PMBT2907A 215	Nexperia	Bipolar Transistors - BJT SOT23 60V .6A PNP SWITCHING	3000: USD0.0115 6000: USD0.0113 9000: USD0.011 12000: USD0.0108 15000: USD0.0106 24000: USD0.0104 45000: USD0.0092	7689000
PMV30XPEAR PMV30XPEAR	Nexperia	MOSFETs PMV30XPEA/SOT23/TO-236AB	3000: USD0.105 6000: USD0.103 9000: USD0.101 15000: USD0.099 30000: USD0.097 75000: USD0.095	51000
MMBT2222A,215 MMBT2222A 215	Nexperia	Bipolar Transistors - BJT SOT23 40V .6A NPN BJT	3000: USD0.0206 6000: USD0.0202 9000: USD0.0198 24000: USD0.0194 45000: USD0.019 75000: USD0.0118 150000: USD0.0104	462000
BAT54A,215 BAT54A 215	Nexperia	Schottky Diodes & Rectifiers DIODE-SML SIGNAL SOT23/TO-236A	3000: USD0.0204 6000: USD0.0196 9000: USD0.0188 24000: USD0.0184 45000: USD0.018 75000: USD0.0177 150000: USD0.0173	4584000

Part #	Manufacturer	Description	Price	BuyNow Qty.
SMICA SOT93 SMICA-SOT93	Ninigi	Heat transfer pad: silicone; SOT93,TOP3; 0.4K/W; L: 24mm; W: 20mm	2500: USD0.0392 500: USD0.0943 100: USD0.142 50: USD0.197 10: USD0.244	17678
SMICA SOT93-2 SMICA-SOT93-2	Ninigi	Heat transfer pad: silicone; SOT93,TOP3; 0.4K/W; L: 24mm; W: 20mm	500: USD0.249 100: USD0.276 50: USD0.338 10: USD0.42	1120
MICA SOT93 MICA-SOT93	Ninigi	Heat transfer pad: mica; SOT93,TOP3; 0.8K/W; L: 25mm; W: 20mm	5000: USD0.0383 1000: USD0.0454 250: USD0.0697 100: USD0.0828 10: USD0.105	12015

Part #	Manufacturer	Description	Price	BuyNow Qty.
JW5250ASOTA#TR	JoulWatt			2980

Part #	Manufacturer	Description	Price	BuyNow Qty.
OPA202ASOT235	AnalogySemi			10000
OPL503ASOT235	AnalogySemi			10000
OPA305ASOT235	AnalogySemi			10000
OPA101ASOT235	AnalogySemi			10000

Part #	Manufacturer	Description	Price	BuyNow Qty.
LS3250SA-SOT-23	Linear Integrated Systems	Higher Current, Single NPN Transistor	1: USD3.37 100: USD3.2 1000: USD3.05	0
CMT-741G58A-SOT-23-6	Cissoid S A	High Temperature Industrial Configurable Logic Gate, SOT-23-6	10: USD50.35 50: USD47.83	5
LSJ74A-SOT-89	Linear Integrated Systems	P-Channel, Single, JFET Switch	1: USD5.66 100: USD5.38 1000: USD5.12	4197
LS3550SA-SOT-23	Linear Integrated Systems	Higher Current, Single PNP Transistor	1: USD2.66 100: USD2.53 1000: USD2.4	0
IT130A-SOT-23	Linear Integrated Systems	Tightly Matched, Monolithic Dual, PNP Transistor	1: USD4.36 100: USD4.15 1000: USD3.95	0

Part #	Manufacturer	Description	Price	BuyNow Qty.
SMV2302A-SOT23-R SMV2302A-SOT23R	MACOM	RF SCHOTTKY DIODE		0

Part #	Manufacturer	Description	Price	BuyNow Qty.
VN5E160ASOTR-E VN5E160ASOTR-E	STMicroelectronics	(Alt: VN5E160ASOTR-E)		0
VN5E050ASOTR-E VN5E050ASOTR-E	STMicroelectronics	(Alt: VN5E050ASOTR-E)		0
VND5E160ASOTR-E VND5E160ASOTR-E	STMicroelectronics	(Alt: VND5E160ASOTR-E)		0
VND5E050ASOTR-E VND5E050ASOTR-E	STMicroelectronics	(Alt: VND5E050ASOTR-E)		0

Part #	Manufacturer	Description	Price	BuyNow Qty.
AS5600-ASOT	AMS Sensors USA Inc	12-bit on-axis magnetic rotary position sensor with analog or PWM output	2500: USD1.96 5000: USD1.83	5000

Part #	Manufacturer	Description	Price	BuyNow Qty.
R1EX24064ATASOA#SO TSSOP	MFG UPON REQUEST			321
FM24C32A-SO-T-G	MFG UPON REQUEST			31528
2SD965A SOT-89-3L	MFG UPON REQUEST			1120
LD1117AL-1.5V-A(SOT-223)	Unisonic Technologies Co Ltd			2428
DTC143ZCA SOT-23	MFG UPON REQUEST			3248

Part #	Manufacturer	Description	Price	BuyNow Qty.
FM24C32A-SO-T-G	SHANGHAI FUDAN MICROELECTRONICS	FM24C32A-SO-T-G		0
FM24C256A-SO-T-G	SHANGHAI FUDAN MICROELECTRONICS	FM24C256A-SO-T-G		0
AS5600-ASOT	AMS	AS5600-ASOT		0

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