Data Sheet 3-PIN MICROPROCESSOR RESET CIRCUITS AZ809/AZ810 General Description Features The AZ809/810 microprocessor supervisory circuits can be used to monitor the power supplies in microprocessor and digital systems. They provide a reset to the microprocessor in power-up, power-down and brownout conditions. The function of the AZ809/810 is to monitor the VCC supply voltage, and assert a reset signal whenever this voltage declines below the factoryprogrammed reset threshold. The reset signal remains asserted for 240ms after VCC rises above the threshold. The AZ809 has an active-low RESET output, while the AZ810 has an active-high RESET output. Seven standard reset voltage options are available, suitable for monitoring 3.0V, 3.3V and 5.0V supply voltages. With a typical supply current of only 8μA when VCC is 3.3V, the AZ809/810 are ideal for use in portable equipment. · · · · · Precise Monitoring of 3.0V, 3.3V and 5.0V Supply Voltages Improved Maxim MAX809/MAX810 Replacement 140ms Min. Reset Pulse Width Active-low Reset Output (AZ809) Active-high Reset Output (AZ810) No External Components Specified Over Full Temperature Range: -40 to 105oC Applications · · · · · These ICs are available in SOT-23 package. Embedded Controllers Battery Operated Systems Intelligent Instruments Wireless Communication Systems PDAs and Handheld Equipment SOT-23 Figure 1. Package Type of AZ809/810 Sep. 2012 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 1 Data Sheet 3-PIN MICROPROCESSOR RESET CIRCUITS AZ809/AZ810 Pin Configuration N Package (SOT-23) VCC 2 RESET/RESET 1 GND 3 Figure 2. Pin Configuration of AZ809/810 (Top View) Pin Description Pin Number AZ809 AZ810 1 1 GND Function Ground pin RESET RESET is asserted LOW if VCC falls below the reset threshold and remains LOW for the 240ms typical reset timeout period (140ms minimum) after VCC exceeds the threshold 2 RESET RESET is asserted HIGH if VCC falls below the reset threshold 3 VCC 2 3 Pin Name Power supply input voltage (3.0V, 3.3V, 5.0V) Sep. 2012 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 2 Data Sheet AP2218 AZ809/AZ810 1A LOW DROPOUT LINEAR REGULATOR 3-PIN MICROPROCESSOR RESET CIRCUITS Functional Block Diagram VCC GND Reset Logic + Timer 3 2 RESET/RESET 1 Oscillator Reference Voltage Figure 3. Functional Block Diagram of AZ809/810 Ordering Information AZ8XX - Circuit Type E1: Lead Free G1: Green 09: AZ809 10: AZ810 TR: Tape and Reel Package N: SOT-23 Detect Voltage: L: 4.63V S: 2.93V R: 2.63V T: 3.08V Sep. 2012 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 3 Data Sheet 3-PIN MICROPROCESSOR RESET CIRCUITS AZ809/AZ810 Ordering Information (Continued) Package Part Number Temperature Range -40 to 105oC SOT-23 oC -40 to 105 Lead Free Marking ID Green Lead Free EC1 Green GC1 Packing Type AZ809NLTR-E1 AZ809NLTR-G1 Tape & Reel AZ809NTTR-E1 AZ809NTTR-G1 EC4 GC4 Tape & Reel AZ809NSTR-E1 AZ809NSTR-G1 EC5 GC5 Tape & Reel AZ809NRTR-E1 AZ809NRTR-G1 EC6 GC6 Tape & Reel AZ810NLTR-E1 AZ810NLTR-G1 ED1 GD1 Tape & Reel AZ810NTTR-E1 AZ810NTTR-G1 ED4 GD4 Tape & Reel AZ810NSTR-E1 AZ810NSTR-G1 ED5 GD5 Tape & Reel AZ810NRTR-E1 AZ810NRTR-G1 ED6 GD6 Tape & Reel BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with "G1" suffix are available in green packages. Absolute Maximum Ratings (Note 1) Parameter Symbol Value Unit VCC -0.3 to 6 V -0.3 to VCC+0.3 V Input Current, VCC Pin 20 mA Output Current, RESET, RESET Pin 20 mA Rate of Rise, VCC 100 V/μs Continuous Power Dissipation 320 mW Supply Voltage RESET, RESET Junction Temperature TJ 125 oC Storage Temperature TSTG -65 to 150 oC TLEAD 300 oC Lead Temperature (Soldering, 10sec) Note 1: Stresses greater than 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 under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability. Recommended Operating Conditions Parameter Operating Junction Temperature Range Symbol Min Max Unit TJ -40 105 oC Sep. 2012 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 4 Data Sheet AP2218 AZ809/AZ810 1A LOW DROPOUT LINEAR REGULATOR 3-PIN MICROPROCESSOR RESET CIRCUITS Electrical Characteristics (TA=-40oC to 105oC, Typical values at TA=25oC, VCC=5V for L devices, VCC=3.3V for T/S devices and VCC=3V for R devices, unless otherwise specified.) Parameter Input Voltage (VCC) Range Symbol VCC Conditions Min TA=0oC to 70oC o o TA=-40 C to 105 C Supply Current ICC VTH 1.1 5.5 1.2 5.5 11 20 TA=-40oC to 85oC, VCC<3.6V, R/S/T 8 16 25 TA=85oC to 105oC, VCC<3.6V, R/S/T 20 T Devices T: 3.08V R Devices R: 2.63V TA=25oC 4.56 TA=-40oC to 85oC TA=85oC to 105oC TA=25oC TA=-40oC to 85oC TA=85oC to 105oC TA=25oC TA=-40oC to 85oC TA=85oC to 105oC TA=25oC TA=-40oC to 85oC TA=85oC to 105oC 4.50 Detect Voltage Temperature Coefficient VCC=VTH to VTH-100mV Sep. 2012 Rev. 1. 3 Unit V μA TA=85oC to 105oC, VCC<5.5V, L S Devices S: 2.93V VCC to Reset Delay Max TA=-40oC to 85oC, VCC<5.5V, L L Devices L: 4.63V Detect Voltage Typ 4.63 4.75 4.40 3.04 4.70 4.86 3.08 3.11 3.00 3.15 2.92 3.23 2.89 2.93 2.85 2.96 3.00 2.78 2.59 V 3.08 2.63 2.66 2.55 2.70 2.50 2.76 ±0.003 %/oC 20 μs BCD Semiconductor Manufacturing Limited 5 Data Sheet 3-PIN MICROPROCESSOR RESET CIRCUITS AZ809/AZ810 Electrical Characteristics (Continued) (TA=-40oC to 105oC, Typical values at TA=25oC, VCC=5V for L devices, VCC=3.3V for T/S devices and VCC=3V for R devices, unless otherwise specified.) Parameter Symbol Reset Active Timeout Period Low RESET Output Voltage (AZ809) VOL High RESET Output Voltage (AZ809) Low RESET Output Voltage (AZ810) High RESET Output Voltage (AZ810) VOL VOH Conditions Min Typ Max Unit TA=-40oC to 85oC 140 240 560 ms TA=85oC to 105oC 100 840 VCC=VTH min, ISINK=1.2mA, AZ809R/S/T 0.3 VCC=VTH min, ISINK=3.2mA, AZ809L 0.4 VCC>1.1V, ISINK=50μA 0.3 VCC>VTH max, ISOURCE=500μA, AZ809R/S/T 0.8VCC VCC>VTH max, ISOURCE=800μA, AZ809L VCC-1.5 V VCC=VTH max, ISINK=1.2mA, AZ810R/S/T 0.3 VCC=VTH max, ISINK=3.2mA, AZ810L 0.4 1.8V<VCC<VTH min, ISOURCE=150μA Sep. 2012 Rev. 1. 3 0.8VCC V V V BCD Semiconductor Manufacturing Limited 6 Data Sheet 3-PIN MICROPROCESSOR RESET CIRCUITS AZ809/AZ810 Operating Diagram VCC 5V VTH Active Reset Timeout Period 0V RESET 20μs typical 5V 240ms typical AZ809 0V 5V RESET AZ810 0V Note: The reset signal is asserted LOW for the AZ809 and HIGH for the AZ810 when the VCC signal falls below the threshold trip voltage and remains asserted for 240ms typical after the VCC has risen above the threshold. Figure 4. Reset Timing Diagram of AZ809/810 Typical Application VCC VCC AZ809 (AZ810) VCC RESET INPUT RESET (RESET) GND GND Figure 5. Typical Application of AZ809/810 Sep. 2012 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 7 Data Sheet 3-PIN MICROPROCESSOR RESET CIRCUITS AZ809/AZ810 Mechanical Dimensions SOT-23 3.0 ° 7.0° R0.100(0.004) 0.900(0.035) 1.100(0.043) 7.0° 0.0°~10.0° 0.020(0.001) 0.100(0.004) 0.200(0.008)MIN 2.800(0.110) 3.000(0.118) 0.550(0.022)REF 0.080(0.003) 0.150(0.006) 1.200(0.047) 1.400(0.055) 2.300(0.091) 2.500(0.098) 0.920(0.036) 0.980(0.039) 0.100(0.004) GAUGE PLANE 4×R0.100(0.004) 0.500(0.020) 0.700(0.028) 2.0° 1.050(0.041)REF Unit: mm(inch) 0.390(0.015) 0.450(0.018) 1.900(0.075)REF Sep. 2012 Rev. 1. 3 BCD Semiconductor Manufacturing Limited 8 BCD Semiconductor Manufacturing Limited http://www.bcdsemi.com IMPORTANT NOTICE IMPORTANT NOTICE BCD Semiconductor BCD Semiconductor Manufacturing Manufacturing Limited Limited reserves reserves the the right right to to make make changes changes without without further further notice notice to to any any products products or or specifispecifications herein. cations herein. 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