ELM77xxxxxC CMOS Dual voltage detector ■General description ELM77xxxxxC is CMOS dual voltage detector which consists of two comparator circuits watching Vdetn2 (Vdd level) and Vdetn1(Vdet input level) simultaneously and independently. This configuration enables output to maintain the state of detection even when voltage of the Vdet input level drops to 0V. ■Features ■Application • Detection voltage range : Vdetn1 (Vdet) 0.8V to 5.0V (by0.1V) • Reset for microcomputers Vdetn2 (Vdd) 1.1V to 5.0V (by0.1V) • Low current consumption • High accuracy of detection voltage • Power voltage shortage detectors : Typ.0.6μA(Vdd=3.0V) : ±2.0%(Vdetn1,2>1.5V) ±30mV(Vdetn1,2≤1.5V) • Switch of backup power source • Battery checkers • High input resistance : Typ.10MΩ • Low temperature coefficient : Typ.±100ppm/°C • Output configuration : N-ch open-drain • Small package : SOT-25 ■Maximum absolute ratings Parameter Power supply voltage Input voltage(for detection voltage) Output voltage Output current Power dissipation Operationg temperature Storage temperature Symbol Vdd Vdet Vout1 Vout2 Iout1 Iout2 Pd Top Tstg Limit Vss-0.3 to 10.0 Vss-0.3 to 10.0 Unit V V Vss-0.3 to 10.0 V 25 mA 250 -40 to +85 -55 to +125 mW °C °C ■Selection guide ELM77xxxxxC-x Symbol a, b Detection voltage2 c, d Detection voltage1 e f Package Product version g Taping direction e.g.) 22: Vdetn2=2.2V, 24: Vdetn2=2.4V 27: Vdetn2=2.7V e.g.) 09: Vdetn1=0.9V, 11: Vdetn1=1.1V B: SOT-25 C S: Refer to PKG file N: Refer to PKG file 10 - 1 ELM77 x x x x x C - x ↑ ↑ ↑ ↑ ↑ ↑ ↑ a b c d e f g ELM77xxxxxC CMOS Dual voltage detector ■Pin configuration SOT-25(TOP VIEW) Pin No. 1 2 3 4 5 Pin name OUT1 VDD VSS VDET OUT2 ■Block diagram ��� ���� ������������������� � � ���� ���� ���� � � ��� ■Typical application ����������� ���� ���� ��� ���� ������� ���� ����������� ���� ��� 10 - 2 ���� ELM77xxxxxC CMOS Dual voltage detector ■Operating timing chart ��� �� � detn� ������� ������� � detp� ����� � hys� ����������������������������� � �������������� �������� ����� � ���� � � �� ���� ��� �� � �� ����� �� ��� ����� ���� �� �� detn� ������� ������� � detp� ����� � hys� ���� � � �� �� � �� �� ��� ��� ��� ������ �� � ������ ������� ��� ������ ���� � ���� � ��� �������� ��� ��� ����� � �������������� �������� * Output status is undefined when Vdd is lower than min. operating voltage. ■Electrical characteristics ELM772211BC(Vdetn1=1.1V, Vdetn2=2.2V) Rpullup=100K, Vpullup=3V unless otherwise specified.Top=25°C Parameter Symbol Condition Min. Typ. Max. Unit Note Operating voltage Vdd 1.0 6.0 V Detection voltage1 Vdetn1 Vdd=1.5V, Vdet=Voltage detected 1.070 1.100 1.130 V 1 Detection voltage2 Vdetn2 Vdd=Voltage detected 2.156 2.200 2.244 V 1 Vdetn1 Vdetn1 Vdetn1 Hysteresis width1 Vhys1 V 1 ×0.04 ×0.08 ×0.12 Vdetn2 Vdetn2 Vdetn2 V Hysteresis width2 Vhys2 1 ×0.02 ×0.04 ×0.06 Current consumption Idd Vdd=3.0V, Vdet=0V, OUT1,2:Open 0.6 2.0 μA 2 Output current1 Ioutn1 Vdd=1.0V, Vdet=0V, Vout1=0V 1 3 mA 3 Output current2 Ioutn2 Vdd=1.0V, Vout2=0.5V 1 3 mA 3 Open drain Ileak1 Vdd=6.0V, Vdet=6.0V, Vout1=6.0V 0.001 0.400 μA 3 leakage current1 Open drain Ileak2 Vdd=6.0V, Vdet=6.0V, Vout2=6.0V 0.001 0.400 μA 3 leakage current2 Input resistance Rdet Vdet=5.0V, Vdd=0V 10 MΩ 4 Detect delay 1 tPHL1 Vdd=6.0V, Vdet=6.0V→0V 160 μs 5 Detect delay 2 tPHL2 Vdd=6.0V→1.0V 70 μs 6 Release delay 1 tPLH1 Vdd=6.0V, Vdet=0V→6.0V 120 μs 5 Release delay 2 tPLH2 Vdd=1.0V→6.0V 60 μs 6 ΔVdetn Temperature ±100 Top=-40°C to +85°C ppm/°C coefficient of Vdetn ΔTop Note : test circuit No. 10 - 3 ELM77xxxxxC CMOS Dual voltage detector ELM772409BC(Vdetn1=0.9V, Vdetn2=2.4V) Rpullup=100K, Vpullup=3V unless otherwise specified.Top=25°C Parameter Symbol Condition Min. Typ. Max. Unit Note Operating voltage Vdd 1.0 6.0 V Detection voltage1 Vdetn1 Vdd=1.5V, Vdet=Voltage detected 0.870 0.900 0.930 V 1 Detection voltage2 Vdetn2 Vdd=Voltage detected 2.352 2.400 2.448 V 1 Vdetn1 Vdetn1 Vdetn1 V Hysteresis width1 Vhys1 1 ×0.04 ×0.08 ×0.12 Vdetn2 Vdetn2 Vdetn2 V Hysteresis width2 Vhys2 1 ×0.02 ×0.04 ×0.06 Current consumption Idd Vdd=3.0V, Vdet=0V, OUT1,2:Open 0.6 2.0 μA 2 Output current1 Ioutn1 Vdd=1.0V, Vdet=0V, Vout1=0V 1 3 mA 3 Output current2 Ioutn2 Vdd=1.0V, Vout2=0.5V 1 3 mA 3 Open drain Ileak1 Vdd=6.0V, Vdet=6.0V, Vout1=6.0V 0.001 0.400 μA 3 leakage current1 Open drain Ileak2 Vdd=6.0V, Vdet=6.0V, Vout2=6.0V 0.001 0.400 μA 3 leakage current2 Input resistance Rdet Vdet=5.0V, Vdd=0V 10 MΩ 4 Detect delay 1 tPHL1 Vdd=6.0V, Vdet=6.0V→0V 160 μs 5 Detect delay 2 tPHL2 Vdd=6.0V→1.0V 70 μs 6 Release delay 1 tPLH1 Vdd=6.0V, Vdet=0V→6.0V 120 μs 5 Release delay 2 tPLH2 Vdd=1.0V→6.0V 60 μs 6 ΔVdetn Temperature ±100 Top=-40°C to +85°C ppm/°C coefficient of Vdetn ΔTop Note : test circuit No. ELM772709BC(Vdetn1=0.9V, Vdetn2=2.7V) Rpullup=100K, Vpullup=3V unless otherwise specified.Top=25°C Parameter Symbol Condition Min. Typ. Max. Unit Note Operating voltage Vdd 1.0 6.0 V Detection voltage1 Vdetn1 Vdd=1.5V, Vdet=Voltage detected 0.870 0.900 0.930 V 1 Detection voltage2 Vdetn2 Vdd=Voltage detected 2.645 2.700 2.754 V 1 Vdetn1 Vdetn1 Vdetn1 Hysteresis width1 Vhys1 V 1 ×0.04 ×0.08 ×0.12 Vdetn2 Vdetn2 Vdetn2 V Hysteresis width2 Vhys2 1 ×0.02 ×0.04 ×0.06 Current consumption Idd Vdd=3.0V, Vdet=0V, OUT1,2:Open 0.6 2.0 μA 2 Output current1 Ioutn1 Vdd=1.0V, Vdet=0V, Vout1=0V 1 3 mA 3 Output current2 Ioutn2 Vdd=1.0V, Vout2=0.5V 1 3 mA 3 Open drain Ileak1 Vdd=6.0V, Vdet=6.0V, Vout1=6.0V 0.001 0.400 μA 3 leakage current1 Open drain Ileak2 Vdd=6.0V, Vdet=6.0V, Vout2=6.0V 0.001 0.400 μA 3 leakage current2 Input resistance Rdet Vdet=5.0V, Vdd=0V 10 MΩ 4 Detect delay 1 tPHL1 Vdd=6.0V, Vdet=6.0V→0V 160 μs 5 Detect delay 2 tPHL2 Vdd=6.0V→1.0V 70 μs 6 Release delay 1 tPLH1 Vdd=6.0V, Vdet=0V→6.0V 120 μs 5 Release delay 2 tPLH2 Vdd=1.0V→6.0V 60 μs 6 ΔVdetn Temperature ±100 Top=-40°C to +85°C ppm/°C coefficient of Vdetn ΔTop Note : test circuit No. 10 - 4 ELM77xxxxxC CMOS Dual voltage detector ■Test circuits 1) Detection voltage & hysteresis width ����� ��� 2) Current consumption ����� ��� � ���� ��� � 4) Input resistance � ��� ���� ���� ���� ��� � � ��� ��� ����������� ��� ���� � ���� 5) Delay time 1 & release time 1 ���� 6) Delay time 2 & release time 2 ����� ����� ��� ���� ���� ����������� ��� ��� ��� ���� ����������� ��� 3) Output current & leakage current ��� ���� ����������� ���� � ��� � ���� ��� ��� ���� ��2 PG2 ����������� ���� ���� ����������� ���� ���� ��1 PG1 ��� ��� PG1 wave form PG2 wave form �� �� �� �� �� 10 - 5 ELM77xxxxxC CMOS Dual voltage detector ■Detection voltage accuracy refernce Target (V) Accuracy Vdetn1 Vdetn2 (mV, %) 0.8 0.9 1.0 1.1 1.1 ±30mV 1.2 1.2 1.3 1.3 1.4 1.4 1.5 1.5 1.6 1.6 1.7 1.7 1.8 1.8 1.9 1.9 2.0 2.0 2.1 2.1 2.2 2.2 ±2% 2.3 2.3 2.4 2.4 2.5 2.5 2.6 2.6 2.7 2.7 2.8 2.8 2.9 2.9 Detection Voltage (V) Min. Max. 0.770 0.830 0.870 0.930 0.970 1.030 1.070 1.130 1.170 1.230 1.270 1.330 1.370 1.430 1.470 1.530 1.568 1.632 1.666 1.734 1.764 1.836 1.862 1.938 1.960 2.040 2.058 2.142 2.156 2.244 2.254 2.346 2.352 2.448 2.450 2.550 2.548 2.652 2.646 2.754 2.744 2.856 2.842 2.958 Target (V) Accuracy Vdetn1 Vdetn2 (mV, %) 3.0 3.0 3.1 3.1 3.2 3.2 3.3 3.3 3.4 3.4 3.5 3.5 3.6 3.6 3.7 3.7 3.8 3.8 3.9 3.9 4.0 4.0 ±2% 4.1 4.1 4.2 4.2 4.3 4.3 4.4 4.4 4.5 4.5 4.6 4.6 4.7 4.7 4.8 4.8 4.9 4.9 5.0 5.0 ■Marking SOT-25 ���� a to d : Assembly lot No. A to Z (I, O, X excepted) and 0 to 9 10 - 6 Detection Voltage (V) Min. Max. 2.940 3.060 3.038 3.162 3.136 3.264 3.234 3.366 3.332 3.468 3.430 3.570 3.528 3.672 3.626 3.774 3.724 3.876 3.822 3.978 3.920 4.080 4.018 4.182 4.116 4.284 4.214 4.386 4.312 4.488 4.410 4.590 4.508 4.692 4.606 4.794 4.704 4.896 4.802 4.998 4.900 5.100 ELM77xxxxxC CMOS Dual voltage detector ■Typical performance characteristics • ELM772211BC Vout1 vs Vdet � Vout2 vs Vdd � 3.5 3.5 Cond. Rpullup=100K Vpullup=3V Ta=25� 3 -30� 2.5 25� 2 Vout2 (V) Vout1 (V) 2.5 80� 1.5 0.5 0.5 0.9 1 1.1 1.2 1.3 0 1.4 0 Vdet (V) � 1.2 2.32 1.5 2 2.5 3 � Vdetn2, Vdetp2 vs Ta � Vdetp2 2.28 1.14 Vdetn2, Vdetp2 (V) Vdetn1, Vdetp1 (V) 1 2.3 Vdetp1 1.16 Vhys1 1.12 1.1 1.08 Vdetn1 1.06 1.04 2.26 2.24 Vhys2 2.22 2.2 Vdetn2 2.18 2.16 2.14 1.02 2.12 1 -40 ���� 1 -20 0 20 40 60 �� 2.1 80 Ambient Temperature (�) -40 Idd vs �Vdd Cond. Vdet=0V Vout1=Open 0.8� � � � Vout2=Open Ta=25� 0.7 0.9 Idd (�A) 0.5 Vdd (V) Vdetn1, Vdetp1 vs Ta 1.18 -30� 1.5 1 0 25� 2 1 0.8 Cond. Rpullup=100K Vpullup=3V Ta=25� 80� 3 80� 25� 0.6 -30� 0.5 0.4 0.3 0.2 0.1 0 0 1 2 3 4 5 6 Vdd (V) 10 - 7 -20 0 20 40 60 Ambient Temperature (�) 80 ELM77xxxxxC CMOS Dual voltage detector • ELM772409BC Vout1� vs Vdet Vout2 vs Vdd � 3.5 3.5 Cond. Rpullup=100K Vpullup=3V Ta=25� 3 -30� 2.5 25� 2 Vout2 (V) Vout1 (V) 2.5 80� 1.5 2 25°C 1.5 -30°C 1 1 0.5 0.5 0 0 0.7 0.8 � 1 0.9 1.1 1 Vdet (V) 0 Vdetn1, Vdetp1 vs Ta � 2.6 0.98 Vdetp1 Cdetn2, Vdetp2 (V) 0.94 Vhys1 0.92 0.9 Vdetn1 0.88 0.5 � 1 0.86 0.84 1.5 2 Vdd (V) 2.5 3 Vdetn2, Vdetp2 vs Ta � 2.55 0.96 Vdetn1, Vdetp1 (V) Cond. Rpullup=100K Vpullup=3V Ta=25°C 80°C 3 Vdetp2 2.5 Vhys2 2.45 2.4 Vdetn2 2.35 0.82 2.3 0.8 -40 -20 0 20 40 60 -40 80 Idd vs Vdd 1 Cond. Vdet=0V Vout1=Open Vout2=Open Ta=25� 0.9 0.8 0.7 80� 25� Idd (�A) 0.6 -30� 0.5 0.4 0.3 0.2 0.1 0 0 1 2 3 4 -20 0 20 40 60 Ambient Temperature (°C) Ambient Temperature (�) 5 6 Vdd (V) 10 - 8 80 ELM77xxxxxC CMOS Dual voltage detector • ELM77xxxxBC tPHL1, tPLH1 vs Cload 1.E+03 tPHL2, tPLH2 � vs Cload � 1.E+04 Cond. Rpullup=100K Vpullup=3V Vdd=6V �Vdet=6V�1V(fall) �Vdet=1V�6V(rise) Ta=25°C ����� tPHL2, tPLH2 (�s) tPHL1, tPLH1 (�s) 1.E+04 ����� 1.E+02 1.E+01 1.E-04 1.E-03 1.E-02 1.E+03 Cond. Rpullup=100K Vpullup=3V �Vdd=6V�1V (fall) �Vdd=�V�6V (rise) Ta=25°C tPHL1 1.E+02 1.E+01 1.E-04 1.E-01 1.E-03 Cload (�F) 8 8 5 4 Vdd=1.0V 3 Cond. Vdet=0V Vdd=1.5V 9 Iout1, Iout2 (mA) Iout1, Iout2 (mA) Iout vs� Vout Cond. Vdet=0V Ta=25°C Vdd=1.2V 6 2 -30°C 7 25°C 6 5 80°C 4 3 2 1 1 0 0 0 1 2 3 4 Vout1, Vout2 (V) 0 5 tPHL1 vs Ta 160 Cond. Rpullup=100K Vpullup=3V Vdd=6V �Vdet=6V~0V (fall) 350 300 0.2 0.4 0.8 0.6 Vout1, Vout2 (V) 400 Cond. Rpullup=100K Vpullup=3V �Vdd=6V�1V(fall) 120 250 tPHL2� vs Ta � 140 100 200 tPHL2 (�s) tPHL1 (�s) 1.E-01 10 Vdd=1.5V 7 1.E-02 Cload (�F) Iout-Vout � � tPLH1 tPHL1 150 80 60 100 40 50 20 0 -40 -20 0 20 40 60 Ambient Temperature (°C) tPHL2 0 80 -40 -20 0 20 40 60 Ambient Temperature (°C) 10 - 9 80 ELM77xxxxxC CMOS Dual voltage detector Cond. Vdd=1.5V Vdet=0V Vout1=0.5V Vout2=0.5V 7 6 Iout1, Iout2 (mA) Iout1, Iout2 vs Ta � � 8 5 4 3 2 1 0 -40 -20 0 20 40 60 80 Ambient Temperature (°C) • ELM77xx11BC Idet vs Vdet � 0.3 Idet vs Ta 0.5 Cond. Ta=25°C 0.25 Vdet=4.5V 0.4 Idet (�A) Idet (�A) 0.2 0.15 Rdet~10M� 0.3 Vdet=3V 0.2 0.1 Vdet=1.5V 0.1 0.05 0 0 0 0.5 1 1.5 2 2.5 3 -40 -20 0 20 40 60 Ambient Temperature (°C) Vdet (V) 10 - 10 80