SGM809-RXN3L/TR

SGM803/SGM809/SGM810 Microprocessor Supervisory Circuit in 3-Pin SOT-23 GENERAL DESCRIPTION FEATURES The SGM803/SGM809/SGM810 supervisory circuits monitor the power supply voltage in microprocessor and ● Precision Voltage Monitor: 1.8V, 2.5V, 3V, 3.3V, 5V Options ● Superior Upgrade for MAX803/MAX809/MAX810 and ADM803/ADM809/ADM810 ● Fully Specified over Temperature ● Low Power Consumption (13μA TYP) ● Reset Assertion Down to 1V VCC ● 150ms Min Power-On Reset Open-Drain RESET Output (SGM803) digital systems. They provide a reset output during power-up, power-down and brownout conditions. On power-up, an internal timer holds reset asserted for 240ms. This holds the microprocessor in a reset state until conditions have stabilized. The RESET output remains operational with VCC as low as 1V. The SGM803/ SGM809 provides an active low reset signal ( RESET ) while the SGM810 provides an active high signal (RESET) output. The SGM809/SGM810 has push-pull outputs, whereas the SGM803 has an open-drain output, which requires an external pull-up resistor. Eight reset threshold voltage options are available suitable for monitoring 1.8V, 2.5V, 3V, 3.3V and 5V supply voltages. The reset comparator features built-in glitch immunity, making it immune to fast transients on VCC. The low supply current of typically 13μA makes the SGM803/SGM809/SGM810 ideal for use in portable, Push-Pull RESET Output (SGM809) Push-Pull RESET Output (SGM810) ● -40℃ to +125℃ Operating Temperature Range ● Small Packaging SGM803 Available in SOT-23-3 and SOT-23 SGM809 Available in SOT-23-3 and SOT-23 SGM810 Available in SOT-23-3 and SOT-23 APPLICATIONS Microprocessor Systems Controllers battery operated equipment. All are specified over the extended -40℃ to +125℃ temperature range. Intelligent Instruments Automotive Systems Safety Systems Portable Instruments TYPICAL OPERATION CIRCUIT PIN CONFIGURATIONS (TOP VIEW) VCC SGM803/SGM809 VCC RPULL-UP SGM803 only RESET GND MICROPROCESSOR SYSTEM RESET GND 1 SGM803 SGM809 SGM810 GND 3 VCC RESET/RESET 2 SOT-23-3 / SOT-23 SG Micro Corp www.sg-micro.com REV. E. 1 Microprocessor Supervisory Circuit in 3-Pin SOT-23 SGM803/SGM809/SGM810 PACKAGE/ORDERING INFORMATION MODEL SGM803 SGM809 RESET THRESHOLD (V) PACKAGE DESCRIPTION 4.63 SOT-23-3 4.63 SOT-23 4.38 SOT-23-3 4.38 4.00 4.00 3.08 3.08 2.93 2.93 SOT-23 2.63 SOT-23-3 2.63 SOT-23 2.32 SOT-23-3 2.32 SOT-23 ORDERING NUMBER PACKAGE MARKING PACKAGE OPTION SGM803-LXN3/TR 803L Tape and Reel, 3000 SGM803-LXN3L/TR 803LL Tape and Reel, 3000 SGM803-MXN3/TR 803M Tape and Reel, 3000 SOT-23 SGM803-MXN3L/TR 803ML Tape and Reel, 3000 SOT-23-3 SGM803-JXN3/TR 803J Tape and Reel, 3000 SOT-23 SGM803-JXN3L/TR 803JL Tape and Reel, 3000 SOT-23-3 SGM803-TXN3/TR 803T Tape and Reel, 3000 SOT-23 SGM803-TXN3L/TR 803TL Tape and Reel, 3000 SOT-23-3 SGM803-SXN3/TR 803S Tape and Reel, 3000 SGM803-SXN3L/TR 803SL Tape and Reel, 3000 SGM803-RXN3/TR 803R Tape and Reel, 3000 SGM803-RXN3L/TR 803RL Tape and Reel, 3000 SGM803-ZXN3/TR 803Z Tape and Reel, 3000 SGM803-ZXN3L/TR 803ZL Tape and Reel, 3000 1.63 SOT-23-3 SGM803-XXN3/TR 803X Tape and Reel, 3000 1.63 SOT-23 SGM803-XXN3L/TR 803XL Tape and Reel, 3000 4.63 SOT-23-3 SGM809-LXN3/TR 809L Tape and Reel, 3000 4.63 SOT-23 SGM809-LXN3L/TR 809LL Tape and Reel, 3000 4.38 SOT-23-3 SGM809-MXN3/TR 809M Tape and Reel, 3000 4.38 SOT-23 SGM809-MXN3L/TR 809ML Tape and Reel, 3000 4.00 SOT-23-3 SGM809-JXN3/TR 809J Tape and Reel, 3000 4.00 SOT-23 SGM809-JXN3L/TR 809JL Tape and Reel, 3000 3.08 SOT-23-3 SGM809-TXN3/TR 809T Tape and Reel, 3000 3.08 SOT-23 SGM809-TXN3L/TR 809TL Tape and Reel, 3000 2.93 SOT-23-3 SGM809-SXN3/TR 809S Tape and Reel, 3000 2.93 SOT-23 SGM809-SXN3L/TR 809SL Tape and Reel, 3000 2.63 SOT-23-3 SGM809-RXN3/TR 809R Tape and Reel, 3000 2.63 SOT-23 SGM809-RXN3L/TR 809RL Tape and Reel, 3000 2.32 SOT-23-3 SGM809-ZXN3/TR 809Z Tape and Reel, 3000 2.32 SOT-23 SGM809-ZXN3L/TR 809ZL Tape and Reel, 3000 1.63 SOT-23-3 SGM809-XXN3/TR 809X Tape and Reel, 3000 1.63 SOT-23 SGM809-XXN3L/TR 809XL Tape and Reel, 3000 SG Micro Corp www.sg-micro.com 2 Microprocessor Supervisory Circuit in 3-Pin SOT-23 SGM803/SGM809/SGM810 PACKAGE/ORDERING INFORMATION (Cont.) MODEL SGM810 RESET THRESHOLD (V) PACKAGE DESCRIPTION 4.63 SOT-23-3 4.63 SOT-23 4.38 SOT-23-3 4.38 4.00 4.00 3.08 3.08 2.93 2.93 SOT-23 2.63 SOT-23-3 2.63 SOT-23 2.32 SOT-23-3 2.32 SOT-23 1.63 SOT-23-3 1.63 SOT-23 SG Micro Corp www.sg-micro.com ORDERING NUMBER PACKAGE MARKING PACKAGE OPTION SGM810-LXN3/TR 810L Tape and Reel, 3000 SGM810-LXN3L/TR 810LL Tape and Reel, 3000 SGM810-MXN3/TR 810M Tape and Reel, 3000 SOT-23 SGM810-MXN3L/TR 810ML Tape and Reel, 3000 SOT-23-3 SGM810-JXN3/TR 810J Tape and Reel, 3000 SOT-23 SGM810-JXN3L/TR 810JL Tape and Reel, 3000 SOT-23-3 SGM810-TXN3/TR 810T Tape and Reel, 3000 SOT-23 SGM810-TXN3L/TR 810TL Tape and Reel, 3000 SOT-23-3 SGM810-SXN3/TR 810S Tape and Reel, 3000 SGM810-SXN3L/TR 810SL Tape and Reel, 3000 SGM810-RXN3/TR 810R Tape and Reel, 3000 SGM810-RXN3L/TR 810RL Tape and Reel, 3000 SGM810-ZXN3/TR 810Z Tape and Reel, 3000 SGM810-ZXN3L/TR 810ZL Tape and Reel, 3000 SGM810-XXN3/TR 810X Tape and Reel, 3000 SGM810-XXN3L/TR 810XL Tape and Reel, 3000 3 Microprocessor Supervisory Circuit in 3-Pin SOT-23 SGM803/SGM809/SGM810 ABSOLUTE MAXIMUM RATINGS (Typical values are at TA = 25°C, unless otherwise noted.) VCC............................................................................-0.3V to 6V RESET, RESET ............................................-0.3V to VCC + 0.3V Input Current, VCC.............................................................20mA Output Current, RESET, RESET ……………………………..20mA Rate of Rise, VCC ...........................................................100V/μs Power Dissipation, PD @ TA = 25℃ SOT-23-3 ............................................................................0.4W Package Thermal Resistance SOT-23-3, θJA............................................................... 250℃/W Operating Temperature Range..........................-40°C to +125°C Junction Temperature........................................................150°C Storage Temperature........................................-65°C to +150°C Lead Temperature (Soldering, 10s)...................................260°C ESD Susceptibility HBM..................................................................................4000V MM......................................................................................400V NOTE: Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. CAUTION This integrated circuit can be damaged by ESD if you don’t pay attention to ESD protection. SGMICRO recommends that all this integrated circuit can be damaged by ESD if you don’t pay attention to ESD protection. SGMICRO recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. SGMICRO reserves the right to make any change in circuit design, specification or other related things if necessary without notice at any time. Please contact SGMICRO sales office to get the last datasheet. PIN DESCRIPTION NAME GND Pin Number SGM803 SGM809 SGM810 1 1 1 RESET 2 2 — RESET — — 2 VCC 3 3 3 SG Micro Corp www.sg-micro.com FUNCTION Ground Active Low reset. RESET remains low while VCC is below the reset threshold, and remains low for 240ms (TYP) after VCC rises above the reset threshold. Active High reset. RESET remains high while VCC is below the reset threshold, and remains high for 240ms (TYP) after VCC rises above the reset threshold. Power supply voltage that is monitored. 4 Microprocessor Supervisory Circuit in 3-Pin SOT-23 SGM803/SGM809/SGM810 ELECTRICAL CHARACTERISTICS (VCC TYP = 5V for L/M/J Models, 3.3V for T/S Models, 3V for R Models, 2.5V for Z Models, 1.8V for X Models; unless otherwise noted.) PARAMETER CONDITIONS MIN TA = 0℃ to +70℃ TA = -40℃ to +125℃ VCC < 5.5V, SGM8_L/M/J, TA = +25℃ VCC < 5.5V, SGM8_L/M/J, TA = -40℃ to +125℃ VCC < 3.6V, SGM8_R/S/T/Z/X, TA = +25℃ VCC < 3.6V, SGM8_R/S/T/Z/X, TA = -40℃ to +125℃ 1.0 1.2 TYP MAX UNITS 5.5 5.5 30 50 25 45 V V μA μA μA μA 4.723 4.86 4.468 4.56 4.08 4.2 3.157 3.23 3.003 3.08 2.696 2.76 2.378 2.42 1.671 1.71 V V V V V V V V V V V V V V V V SUPPLY Voltage Current 17 13 RESET VOLTAGE THRESHOLD TA = +25℃ TA = -40℃ to +125℃ TA = +25℃ TA = -40℃ to +125℃ TA = +25℃ TA = -40℃ to +125℃ TA = +25℃ TA = -40℃ to +125℃ TA = +25℃ TA = -40℃ to +125℃ TA = +25℃ TA = -40℃ to +125℃ TA = +25℃ TA = -40℃ to +125℃ TA = +25℃ TA = -40℃ to +125℃ SGM8_L SGM8_M SGM8_J SGM8_T SGM8_S SGM8_R SGM8_Z SGM8_X 4.537 4.40 4.292 4.16 3.92 3.8 3.003 2.92 2.857 2.78 2.564 2.50 2.262 2.22 1.589 1.55 Reset Threshold Temperature Coefficient VCC to RESET/ RESET Delay VCC = VTH to (VTH – 100mV) TA = -40℃ to +85℃ Reset Active Timeout Period TA = -40℃ to +125℃ RESET/ RESET OUTPUT VOLTAGE Low (SGM803R/S/T/Z/X) VCC = VTH(MIN), ISINK = 1.2mA Low (SGM809R/S/T/Z/X) Low (SGM803L/M/J) VCC = VTH(MIN), ISINK = 3.2mA Low (SGM809L/M/J) Low (SGM803R/S/T/L/M/J/Z/X) VCC > 1.0V, ISINK = 50μA Low (SGM809R/S/T/L/M/J/Z/X) High (SGM809R/S/T/Z/X) VCC > VTH(MAX), ISOURCE = 500μA High (SGM809L/M/J) VCC > VTH(MAX), ISOURCE = 800μA Low (SGM810R/S/T/Z/X) VCC = VTH(MAX), ISINK = 1.2mA Low (SGM810L/M/J) VCC = VTH(MAX), ISINK = 3.2mA High (SGM810R/S/T/L/M/J) 1.8V < VCC < VTH(MIN), ISOURCE = 150μA RESET Open-Drain Output VCC > VTH, reset de-asserted Leakage Current (SGM803) SG Micro Corp www.sg-micro.com 4.63 4.38 4.00 3.08 2.93 2.63 2.32 1.63 30 150 100 20 240 ppm/℃ 560 840 μs ms ms 0.3 V 0.4 V 0.3 V 0.8 × VCC VCC - 1.5 0.3 0.4 0.8 × VCC 1 V V V V V μA 5 Microprocessor Supervisory Circuit in 3-Pin SOT-23 SGM803/SGM809/SGM810 TYPICAL PERFORMANCE CHARACTERISTICS Power-Down RESET Delay vs. Temperature Power-Down RESET Delay vs. Temperature 250 300 200 VOD = 10mV 150 VOD = 20mV 100 VOD = 100mV 50 SGM8_T/S/R/Z VOD = 10mV VOD = VTH - VCC Power-Down RESET (µs) Power-Down RESET (µs) SGM8_L/M/J VOD = 200mV 250 200 VOD = 20mV 150 100 -50 -30 -10 10 30 50 70 Temperature (℃) 90 110 -50 130 -10 10 30 50 70 90 110 130 Supply Current vs. Temperature (No Load) 30 SGM8_S 265 -30 Temperature (℃) Power-Up RESET Delay vs. Temperature 270 25 260 Supply Current (μA) Power-Down RESET (ms) VOD = 200mV VOD = 100mV 50 0 0 255 250 245 240 235 230 VCC = 5.5V 20 15 VCC = 3.6V 10 5 225 220 0 -50 -30 -10 10 30 50 70 Temperature (℃) 90 -50 110 130 Maximum Transient Duration (µs) 1.006 1.004 1.002 1 0.998 0.996 0.994 0.992 0.99 -10 10 30 50 70 Temperature (℃) SG Micro Corp www.sg-micro.com 10 30 50 70 90 110 130 350 300 SGM8_L/M/J 250 200 150 100 50 SGM8_R/S/T/Z 0 0.988 -30 -10 Maximum Transient Duration Without Causing a Reset Pulse vs. RESET Comparator Overdrive 400 1.008 -50 -30 Temperature (℃) Normalized RESET Voltage Threshold vs. Temperature Normalized RESET Threshold VOD = VTH - VCC 90 110 130 1 10 100 1000 RESET Comparator Overdrive VTH - VCC(mV) 6 SGM803/SGM809/SGM810 Microprocessor Supervisory Circuit in 3-Pin SOT-23 TYPICAL PERFORMANCE CHARACTERISTICS RESET Output Voltage vs. Supply Voltage Supply Voltage 5VP-P 2V/div RESET Output Voltage SGM809R SGM809S 200ms/div SG Micro Corp www.sg-micro.com 7 Microprocessor Supervisory Circuit in 3-Pin SOT-23 SGM803/SGM809/SGM810 APPLICATION NOTES BENEFITS OF AN ACCURATE RESET THRESHOLD INTERFACING TO OTHER DEVICES’ OUTPUT In other microprocessor supervisory circuits, tolerances in supply voltages lead to an overall increase in reset tolerance levels due to the deterioration of the microprocessor reset circuit’s power supply. The possibility of a malfunction during a power failure is greatly reduced because the SGM803/ SGM809/SGM810 series can operate effectively even when there are large degradations of the supply voltages. Another advantage of the SGM803/SGM809/SGM810 series is its very accurate internal voltage reference circuit. These benefits combine to produce an exceptionally reliable voltage monitor circuit. The SGM803/SGM809/SGM810 series is designed to integrate with as many devices as possible and, therefore, has a standard output dependent on VCC. This enables the parts to be used in both 3V and 5V, or any nominal voltage within the minimum and maximum specifications for VCC. This design simplifies interfacing this device to other devices. INTERFACING TO MICROPROCESSORS WITH MULTIPLE INTERRUPTS ENSURING A VALID RESET OUTPUT DOWN TO VCC = 0V When VCC falls below 1.0V, the SGM803/SGM809 RESET no longer sinks current. A high impedance CMOS logic input connected to RESET may, therefore, drift to undetermined logic levels. To eliminate this problem, a 100kΩ resistor should be connected from RESET to ground. VCC In a number of cases, it is necessary to interface many interrupts from different devices (for example, thermal, altitude, and velocity sensors). The SGM803/SGM809/SGM810 can easily be integrated into existing interrupt-handling circuits, as shown in Figure 1, or can be used as a standalone device. VCC SGM809 RESET PRIORITY ENCODER 74LS147 4-LINE BCD TO MICROPROCESSOR VCC GND Figure 2. Ensuring a Valid Reset Output Down to VCC = 0V PREVENTING THE HIGH VOLTAGE SPIKE AND LOW POWER DESIGN VCC SGM809 OTHER SENSING DEVICES RESET GND To prevent the high voltage spike damage or input VCC current limitation low power design, It is always to connect a resistor R1(0Ω to 1kΩ) in series to VCC, for such application, one capacitance C1(0.1µF to 4.7µF) should be connected between VCC Pin and GND. the schematic is shown in Figure 3. The input resistor will affect output driving capability. R1 0Ω ~ 1kΩ Figure 1. Interfacing to Microprocessors with Multiple Interrupts IN VCC C1 0.1µF ~ 4.7µF RESET OUTPUT SGM809 GND Figure 3. Preventing the High Voltage Spike and Low Power Design . SG Micro Corp www.sg-micro.com 8 Microprocessor Supervisory Circuit in 3-Pin SOT-23 SGM803/SGM809/SGM810 DETAILED DESCRIPTIONS RESET TIMING The reset signal is asserted LOW for the SGM809 and HIGH for the SGM810 when the power supply voltage falls below the threshold trip voltage and remains asserted for at least 150ms after the power supply voltage has risen above the threshold. Power Supply Voltage 5V Threshold Voltage Reset Timeout Period 0V 150ms minimum 5V RESET SGM809 0V RESET 5V SGM810 0V Figure 4. Reset Timing Diagram SG Micro Corp www.sg-micro.com 9 Microprocessor Supervisory Circuit in 3-Pin SOT-23 SGM803/SGM809/SGM810 PACKAGE OUTLINE DIMENSIONS SOT-23-3 1.90 D b E1 E 2.59 0.99 e e1 0.95 0.69 RECOMMENDED LAND PATTERN (Unit: mm) L A A1 θ A2 c 0.2 Symbol Dimensions In Millimeters MIN MAX Dimensions In Inches MIN MAX A 1.050 1.250 0.041 0.049 A1 0.000 0.100 0.000 0.004 A2 1.050 1.150 0.041 0.045 b 0.300 0.500 0.012 0.020 c 0.100 0.200 0.004 0.008 D 2.820 3.020 0.111 0.119 E 1.500 1.700 0.059 0.067 E1 2.650 2.950 0.104 0.116 e 0.950 BSC 0.037 BSC e1 1.900 BSC 0.075 BSC L 0.300 0.600 0.012 0.024 θ 0° 8° 0° 8° SG Micro Corp www.sg-micro.com 10 Microprocessor Supervisory Circuit in 3-Pin SOT-23 SGM803/SGM809/SGM810 PACKAGE OUTLINE DIMENSIONS SOT-23 D b E1 2.29 E 0.76 0.76 e e1 0.95 RECOMMENDED LAND PATTERN (Unit: mm) L1 L A θ A1 c 0.25 A2 Symbol A A1 A2 b c D E E1 e e1 L L1 θ SG Micro Corp www.sg-micro.com Dimensions In Millimeters MIN MAX 0.900 1.150 0.000 0.100 0.900 1.050 0.300 0.500 0.080 0.150 2.800 3.000 1.200 1.400 2.250 2.550 0.950 BSC 1.900 BSC 0.550 REF 0.300 0.500 0° 8° Dimensions In Inches MIN MAX 0.035 0.045 0.000 0.004 0.035 0.041 0.012 0.020 0.003 0.006 0.110 0.118 0.047 0.055 0.089 0.100 0.037 BSC 0.075 BSC 0.022 REF 0.012 0.020 0° 8° 11 Microprocessor Supervisory Circuit in 3-Pin SOT-23 SGM803/SGM809/SGM810 TAPE AND REEL INFORMATION REEL DIMENSIONS TAPE DIMENSIONS P2 W P0 Q1 Q2 Q1 Q2 Q1 Q2 Q3 Q4 Q3 Q4 Q3 Q4 B0 Reel Diameter P1 A0 K0 DIRECTION OF FEED Reel Width (W1) NOTE: The picture is only for reference. Please make the object as the standard. KEY PARAMETER LIST OF TAPE AND REEL Package Type Reel Diameter Reel Width W1 (mm) A0 (mm) B0 (mm) K0 (mm) P0 (mm) P1 (mm) P2 (mm) W (mm) Pin1 Quadrant SOT-23-3 7″ 9.0 3.2 3.3 1.3 4.0 4.0 2.0 8.0 Q3 SOT-23 7″ 9.5 3.15 2.77 1.22 4.0 4.0 2.0 8.0 Q3 SG Micro Corp www.sg-micro.com 12 Microprocessor Supervisory Circuit in 3-Pin SOT-23 SGM803/SGM809/SGM810 CARTON BOX DIMENSIONS NOTE: The picture is only for reference. Please make the object as the standard. KEY PARAMETER LIST OF CARTON BOX Reel Type Length (mm) Width (mm) Height (mm) Pizza/Carton 7″ (Option) 368 227 224 8 7″ 442 410 224 18 SG Micro Corp www.sg-micro.com 13