ELM97xxxxA VOLTAGE DETECTOR ■ GENERAL DESCRIPTION ELM 97xxxxA Series is a CMOS voltage detector IC for battery-operated portable devices. It consists of a very low-power-consumption reference voltage source, a comparator, an output driver, a hysteresis circuit, and detection voltage setting resistors. Output logic is positive, therefore output level is low when VDD is lower than detection voltage. It can be used as a reset controller in microcomputer-based systems. And it can be widely applied to the devices, such as battery checkers, switching circuit of back-up power source, power failure detectors, etc. Two output styles are available, N-ch opendrain and CMOS output. It is available in SOT-89 and SOT-23. ■ FEATURES ・ Low power operation ・ Low voltage operation ・ High accuracy of detection voltage ・ Low temperature coefficient : TYP. 1.0 μ A (VDD = 1.5V) : Reset operation assured at 0.8V : ± 2.5% : TYP. -300ppm/℃ (Detection voltage ＜ 2.0V) : TYP. -100ppm/℃ (Detection voltage ≧ 2.0V) ・ Very small package : SOT-89, SOT-23 ■ APPLICATION ・ Reset for microcomputer ・ Battery checker ・ Power failure detector ・ Switching of back-up power source ■ PIN CONFIGURATION SOT-89 3 SOT-23 1 2 3 ( TOP VIEW ) Pin No. 1 2 3 1 2 ( TOP VIEW ) Pin Name OUT VDD VSS Pin No. 1 2 3 147 Pin Name OUT VSS VDD VOLTAGE DETECTOR ELM97xxxxA ■ SELECTION GUIDE Symbol Ex a, b Detection Voltage c Output Form d Package e Product Version C: N: A: B: A: 09 : VDETN = 0.9V 27 : VDETN = 2.7V 45 : VDETN = 4.5V CMOS Output N-ch Opendrain Output SOT-89 SOT-23 A Version ELM97 x x x x A ↑↑↑↑↑ a b c d e ■ SERIES Detection Output Voltage Form ELM9709NBA-S(N) 0.9V N-ch ELM9710NBA-S(N) 1.0V N-ch ELM9711NBA-S(N) 1.1V N-ch ELM9722CAA-S(N) 2.2V CMOS ELM9724CAA-S(N) 2.4V CMOS ELM9725CAA-S(N) 2.5V CMOS S type : Standard, N type : Reverse Model Package Model SOT-23 SOT-23 SOT-23 SOT-89 SOT-89 SOT-89 ELM9727CAA-S(N) ELM9730CAA-S(N) ELM9732CAA-S(N) ELM9734CAA-S(N) ELM9745CAA-S(N) ELM9748CAA-S(N) Detection Voltage 2.7V 3.0V 3.2V 3.4V 4.5V 4.8V Output Form CMOS CMOS CMOS CMOS CMOS CMOS Package SOT-89 SOT-89 SOT-89 SOT-89 SOT-89 SOT-89 * Available 0.9V～5.0V detection voltage for N-ch output and 2.0V～5.0V detection voltage for CMOS output at 0.1V step as semi-custom-made IC. 148 VOLTAGE DETECTOR ELM97xxxxA Rule 1 ■ MARKING SOT-89 ① ② ③ ④ ① : Represents the integer digit of the detection voltage Symbol A B C D E F Detection Voltage 0.*V (N-ch) 1.*V (N-ch) 2.*V (N-ch) 3.*V (N-ch) 4.*V (N-ch) 5.*V (N-ch) Symbol P R S T Detection Voltage 2.*V (CMOS) 3.*V (CMOS) 4.*V (CMOS) 5.*V (CMOS) ② : Represents the decimal digit of the detection voltage SOT-23 Symbol ①②③④ Detection Voltage Symbol Detection Voltage 0 1 *.0V *.1V 5 6 *.5V *.6V 2 *.2V 7 *.7V 3 4 *.3V *.4V 8 9 *.8V *.9V ③ : Represents the assembly lot number A ～ Z repeated (I,O,X excepted) ④ : Represents the assembly lot number 0 ～ 9 repeated Rule 2 ①: Represents the ELM97xxxxA series ELM97xxxxA series = A ② : Represents the integer digit of the detection voltage Symbol 0 1 2 3 4 5 Detection Voltage 0.*V (N-ch) 1.*V (N-ch) 2.*V (N-ch) 3.*V (N-ch) 4.*V (N-ch) 5.*V (N-ch) Symbol Y W U V Detection Voltage 2.*V (CMOS) 3.*V (CMOS) 4.*V (CMOS) 5.*V (CMOS) ③ : Represents the decimal digit of the detection voltage Symbol Detection Voltage Symbol Detection Voltage 0 1 *.0V *.1V 5 6 *.5V *.6V 2 *.2V 7 *.7V 3 4 *.3V *.4V 8 9 *.8V *.9V ④ : Represents the assembly lot number 0 ～ 9, A ～ Z repeated (I,O,X excepted) *Remarks --- ELM97xxxxA series have two kind of mraking rules each package. 149 VOLTAGE DETECTOR ELM97xxxxA ■ BLOCK DIAGRAM 1.CMOS Output 2.N-ch Opendrain Output VDD OUT VDD VREF VREF + + OUT - VSS - VSS ■ TIMING CHART VDD VDETP VDETN VHYS VopMin VSS OUT VSS tPLH tPHL ■ MAXIMUM ABSOLUTE RATINGS Parameter Symbol Limits Power Supply Voltage VDD CMOS VOUT N-ch IOUT SOT-89 Pd SOT-23 Top Tstg 10 VSS-0.3～VDD+0.3 VSS-0.3～+10 50 300 200 -30～+80 -40～+125 Output Voltage Output Current Power Dissipation Operating Temperature Storage Temperature 150 (VSS=0V) Units V V mA mW ℃ VOLTAGE DETECTOR ELM97xxxxA ■ ELECTRICAL CHARACTERISTICS ELM9709NBA Parameter Detection Voltage Symbol VDETN Hysteresis width VHYS Current Consumption Operating Voltage Output Current Delay Time Temperature Characteristics of VDETN ISS VDD IOUTN tPHL △VDETN △Top Conditions Min. Typ. 0.878 0.900 VDETN ×0.02 VDD=1.5V 1.0 0.8 VDD=0.8V, VDS=0.5V 0.02 0.1 2.0 Top=-30～+80℃ - -0.27 Max. 0.922 VDETN ×0.08 3.0 6.0 - - (Top=25℃) Units Remarks V 2 V 2 μA V mA mS 1 2 3 5 mV/℃ - Remarks ) Test circuit No. ELM9710NBA Parameter Detection Voltage Symbol VDETN Hysteresis width VHYS Current Consumption Operating Voltage Output Current Delay Time Temperature Characteristic of VDETN ISS VDD IOUTN tPHL △VDETN △Top Conditions Min. Typ. 0.975 1.000 VDETN ×0.02 VDD=1.5V 1.0 0.8 VDD=0.8V, VDS=0.5V 0.02 0.1 2.0 Top=-30～+80℃ - -0.30 Max. 1.025 VDETN ×0.08 3.0 6.0 - - (Top=25℃) Units Remarks V V 2 2 μA V mA mS 1 2 3 5 mV/℃ - Remarks ) Test circuit No. ELM9711NBA Parameter Detection Voltage Symbol VDETN Hysteresis width VHYS Current Consumption Operating Voltage Output Current Delay Time Temperature Characteristic of VDETN ISS VDD IOUTN tPHL △VDETN △Top Conditions Min. Typ. 1.073 1.100 VDETN ×0.02 VDD=1.5V 1.0 0.8 VDD=0.8V, VDS=0.5V 0.02 0.1 2.0 Top=-30～+80℃ - -0.33 Max. 1.127 VDETN ×0.08 3.0 6.0 - - (Top=25℃) Units Remarks V 2 V 2 μA V mA mS 1 2 3 5 mV/℃ - Remarks ) Test circuit No. 151 VOLTAGE DETECTOR ELM97xxxxA ELM9722CAA Parameter Detection Voltage Symbol VDETN Hysteresis width VHYS Current Consumption Operating Voltage ISS VDD IOUTN IOUTP tPHL Output Current Delay Time Temperature Characteristic of VDETN △VDETN △Top Conditions Min. Typ. 2.145 2.200 VDETN ×0.02 VDD=3.0V 1.5 0.8 VDD=1.5V, VDS=0.5V 1.0 2.0 VDD=4.5V, VDS=2.1V 0.5 1.5 0.1 Top=-30～+80℃ - -0.22 Max. 2.255 VDETN ×0.08 4.5 6.0 - - (Top=25℃) Units Remarks V 2 V 2 μA V mA mA mS 1 2 3 4 5 mV/℃ - Remarks ) Test circuit No. ELM9724CAA Parameter Detection Voltage Symbol VDETN Hysteresis width VHYS Current Consumption Operating Voltage ISS VDD IOUTN IOUTP tPHL Output Current Delay Time Temperature Characteristic of VDETN △VDETN △Top Conditions Min. Typ. 2.340 2.400 VDETN ×0.02 VDD=3.0V 1.5 0.8 VDD=1.5V, VDS=0.5V 1.0 2.0 VDD=4.5V, VDS=2.1V 0.5 1.5 0.1 Top=-30～+80℃ - -0.24 Max. 2.460 VDETN ×0.08 4.5 6.0 - - (Top=25℃) Units Remarks V 2 V 2 μA V mA mA mS 1 2 3 4 5 mV/℃ - Remarks ) Test circuit No. ELM9725CAA Parameter Detection Voltage Symbol VDETN Hysteresis width VHYS Current Consumption Operating Voltage ISS VDD IOUTN IOUTP tPHL Output Current Delay Time Temperature Characteristic of VDETN △VDETN △Top Conditions Min. Typ. 2.438 2.500 VDETN ×0.02 VDD=3.0V 1.5 0.8 VDD=1.5V, VDS=0.5V 1.0 2.0 VDD=4.5V, VDS=2.1V 0.5 1.5 0.1 Top=-30～+80℃ - -0.25 Max. 2.562 VDETN ×0.08 4.5 6.0 - - (Top=25℃) Units Remarks V V 2 2 μA V mA mA mS 1 2 3 4 5 mV/℃ - Remarks ) Test circuit No. 152 VOLTAGE DETECTOR ELM97xxxxA ELM9727CAA Parameter Detection Voltage Symbol VDETN Hysteresis width VHYS Current Consumption Operating Voltage ISS VDD IOUTN IOUTP tPHL Output Current Delay Time Temperature Characteristic of VDETN △VDETN △Top Conditions Min. Typ. 2.633 2.700 VDETN ×0.02 VDD=4.5V 1.5 0.8 VDD=1.5V, VDS=0.5V 1.0 2.0 VDD=4.5V, VDS=2.1V 0.5 1.5 0.1 Top=-30～+80℃ - -0.27 Max. 2.767 VDETN ×0.08 4.5 6.0 - - (Top=25℃) Units Remarks V 2 V 2 μA V mA mA mS 1 2 3 4 5 mV/℃ - Remarks ) Test circuit No. ELM9730CAA Parameter Detection Voltage Symbol VDETN Hysteresis width VHYS Current Consumption Operating Voltage ISS VDD IOUTN IOUTP tPHL Output Current Delay Time Temperature Characteristic of VDETN △VDETN △Top Conditions Min. Typ. 2.925 3.000 VDETN ×0.02 VDD=4.5V 1.5 0.8 VDD=1.5V, VDS=0.5V 1.0 2.0 VDD=4.5V, VDS=2.1V 0.5 1.5 0.1 Top=-30～+80℃ - -0.30 Max. 3.075 VDETN ×0.08 4.5 6.0 - - (Top=25℃) Units Remarks V 2 V 2 μA V mA mA mS 1 2 3 4 5 mV/℃ - Remarks ) Test circuit No. ELM9732CAA Parameter Detection Voltage Symbol VDETN Hysteresis width VHYS Current Consumption Operating Voltage ISS VDD IOUTN IOUTP tPHL Output Current Delay Time Temperature Characteristic of VDETN △VDETN △Top Conditions Min. Typ. 3.120 3.200 VDETN ×0.02 VDD=4.5V 1.5 0.8 VDD=1.5V, VDS=0.5V 1.0 2.0 VDD=4.5V, VDS=2.1V 0.5 1.5 0.1 Top=-30～+80℃ - -0.32 Max. 3.280 VDETN ×0.08 4.5 6.0 - - (Top=25℃) Units Remarks V 2 V 2 μA V mA mA mS 1 2 3 4 5 mV/℃ - Remarks ) Test circuit No. 153 VOLTAGE DETECTOR ELM97xxxxA ELM9734CAA Parameter Detection Voltage Symbol VDETN Hysteresis width VHYS Current Consumption Operating Voltage ISS VDD IOUTN IOUTP tPHL Output Current Delay Time Temperature Characteristic of VDETN △VDETN △Top Conditions Min. Typ. 3.315 3.400 VDETN ×0.02 VDD=4.5V 1.5 0.8 VDD=1.5V, VDS=0.5V 1.0 2.0 VDD=4.5V, VDS=2.1V 0.5 1.5 0.1 Top=-30～+80℃ - -0.34 Max. 3.485 VDETN ×0.08 4.5 6.0 - - (Top=25℃) Units Remarks V 2 V 2 μA V mA mA mS 1 2 3 4 5 mV/℃ - Remarks ) Test circuit No. ELM9745CAA Parameter Detection Voltage Symbol VDETN Hysteresis width VHYS Current Consumption Operating Voltage ISS VDD IOUTN IOUTP tPHL Output Current Delay Time Temperature Characteristic of VDETN △VDETN △Top Conditions Min. Typ. 4.388 4.500 VDETN ×0.02 VDD=6.0V 1.5 0.8 VDD=1.5V, VDS=0.5V 1.0 2.0 VDD=6.0V, VDS=2.1V 0.5 2.0 0.1 Top=-30～+80℃ - -0.45 Max. 4.612 VDETN ×0.08 4.5 6.0 - - (Top=25℃) Units Remarks V 2 V 2 μA V mA mA mS 1 2 3 4 5 mV/℃ - Remarks ) Test circuit No. ELM9748CAA Parameter Detection Voltage Symbol VDETN Hysteresis width VHYS Current Consumption Operating Voltage ISS VDD IOUTN IOUTP tPHL Output Current Delay Time Temperature Characteristic of VDETN △VDETN △Top Conditions Min. Typ. 4.680 4.800 VDETN ×0.02 VDD=6.0V 1.5 0.8 VDD=1.5V, VDS=0.5V 1.0 2.0 VDD=6.0V, VDS=2.1V 0.5 2.0 0.1 Top=-30～+80℃ - -0.48 Max. 4.920 VDETN ×0.08 4.5 6.0 - - (Top=25℃) Units Remarks V 2 V 2 μA V mA mA mS 1 2 3 4 5 mV/℃ - Remarks ) Test circuit No. 154 VOLTAGE DETECTOR ELM97xxxxA ■ TYPICAL CHARACTERISTICS ● ELM9711NxA ISS - VDD VOUT - VDD 4 4 3 3 (3V Pullup 1MΩ) 80℃ VOUT (V) ISS (μA) -30℃ 25℃ 2 1 2 25℃ 1 -30℃ 0 1 2 80℃ 3 0 1 VDD (V) 2 IOUT - VDS IOUT - VDD 1 2 1.5 0.6 IOUT (mA) IOUT (mA) 0.8 VDD=1.0V 0.4 80℃ 1 25℃ 0.5 VDD=0.8V 0.2 0 3 VDD (V) -30℃ 0.2 0.4 0.6 0 0.8 0.6 0.8 VDS (V) 1 VDET - Top 1.4 tPHL,tPLH - VDD tPLH 100 tPHL,tPLH (ms) 1.2 VDETP VDET (V) 1.2 VDD (V) 10 tPHL 1 1.1 VDETN -20 0 20 40 60 0.1 80 Top ( ℃) 0.001 0.01 CL (μF) 155 0.1 1 VOLTAGE DETECTOR ELM97xxxxA ■ TEST CIRCUITS 1. Current Consumption 2. Detection Voltage A VDD ELM97 Series R* VDD VDD VDD OUT ELM97 Series V OUT 3V VDETN VSS VSS * R=1M Ω 3. Output Current (N-ch) VDD ELM97 Series VDD V 4. Output Current (P-ch) A VDS OUT VDD V VSS VDD ELM97 Series VSS V 5. Delay Time V VDS OUT A Input Pulse 3 or 6V R* VDD → P.G. ELM97 Series OUT 3V ● CL VSS 0.8V ● ● * R=1M Ω R is unnecessary for CMOS output products. 156 VSS