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| R EM MICROELECTRONIC-MARIN SA V6340 Ultra Low Cost 3-Pin Microprocessor Reset Features n SOT-23 and TO-92 package n Reset output state guaranteed down to VDD = 1 V at 25 OC n Low supply current: stays stable during switching versions B, N, N: typ. 19 A at VDD = 5 V other Versions: n n n n n typ. 38 mA at VDD = 5 V, VDD RES or RES 2.5% voltage threshold accuracy High noise immunity No external components required Push-pull or Open drain output Pin compatible with MAX 809 in SOT-23, by appropriate layout on PCB 1) n Pin compatible with MC 33164 in TO-92 and SO8 n TTL output compatibility 1) Typical Operating Configuration VDD V 6340 VSS Microprocessor GND Fig. 1 On request Description The V6340 monitors the supply voltage of any electronic system, and generates the appropriate Reset signal. The threshold must be chosen to the minimum allowed voltage which guarantees the good functionality of the system. As long as VDD stays upside this voltage level, the output stays inactive. If VDD drops below VTH, the output gets active. The threshold voltage may be obtained in different versions: 2.6 V, 3.0 V, 3.7 V and 4.4 V. Pin Assignment TO-92 View Flat Front V 6340 1 2 3 Applications Each applications needing a voltage detection : n Computer electronics n White / Brown goods n Automotive electronics n Industrial electronics n Telecom systems n Hand-held systems RES VDD VSS or RES SOT-23 VSS 3 V 6340 1 2 RES or RES VDD Fig. 2 1 R V6340 Absolute Maximum Ratings Parameter Voltage at VDD to VSS Min. voltage at RES or RES Mix. voltage at RES or RES Storage temperature range Symbol VDD Vmin Vmax TSTO Conditions -0.3V to+8V VSS - 0.3V VDD + 0.3V -65O to + 150OC Table 1 Stresses above these listed maximum ratings may cause permanent damage to the device. Exposure beyond specified operating conditions may affect device reliability or cause malfunction. Handling Procedures This device has built-in protection against high static voltages or electric fields; however, anti-static precautions must be taken as for any other CMOS component. Unless otherwise specified, proper operation can only occur when all terminal voltages are kept within the supply voltage range. Operating Conditions Parameter Operating temperature 2) Positive supply voltage 1) 1) Symbol Min. Typ . Max. Units TA VDD -40 1 +125 5.5 O C V 2) Electrical Characteristics TA = +25 OC, unless otherwise specified Parameter Supply current Threshold voltage Symbol IDD VTH VTH VTH VHYS VOL VOL VOL VOL VOH VOH VOH VOH ILEAK IDD VTH VHYS Test Conditions Table 2 The maximum operating temperature is confirmed by sampling at initial device qualification. In production, all O devices are tested at +25 C. On request devices tested at O +125 C can be supplied. O VDD = 1 V guaranteed at +25 C (see Fig. 14 for more information) Min. Typ. 38 3.02 3.72 4.39 5 200 195 198 185 1.36 2.3 3.27 4.76 0.005 19 2.65 32 Max. 50 3.10 3.82 4.51 270 250 250 250 Units mA V V V mV mV mV mV mV V V V V mA mA V mV Table 3 VDD = 5 V, output open C, I, O D, J, P F, L, R VDD = 1.6 V, IOL = 1mA VDD = 2.5 V, IOL = 2mA VDD = 3.5 V, IOL = 3mA VDD = 5 V, IOL = 4mA VDD = 1.6 V, IOH = -1mA VDD = 2.5 V, IOH = -1.5 mA VDD = 3.5 V, IOH = -2.5mA VDD = 5 V, IOH = -3.5 mA VDD = 5 V VDD = 5 V, output open B,H,N 2.94 3.62 4.27 Threshold hysteresis RES Output Low Level RES Output High Level 1.25 2.2 3.15 4.65 Output leakage current 1) 1 31 2.74 Only for version B, H and N Supply current Threshold voltage Threshold hyteresis 1) 2.56 Only for Open drain versions Timing Waveform VDD VTH 1V Logic "1" Logic "0" Logic "1" Logic "0" t RES t t RES Fig. 3 Block Diagram VDD Voltage Reference + RES or RES VSS Fig. 4 2 R V6340 Typical Characteristics Normalized VOL vs. Temperature 1.6 1.4 V OL [ 1 ] * 1.2 1 0.8 0.96 0.6 -50 0 TA[OC] +50 +100 Fig. 4 0.94 -50 0 TA[0C] +50 +100 Fig. 5 VOH [1]* Normalized VOH vs. Temperature 1.06 1.04 1.02 1 0.98 VDD=5V, IOH=3.5 mA VDD=3.5V, IOH=2.5 mA VDD=1.6V, IOH=1mA VDD=2.5V, IOH=1.5 mA VOL vs. Output Current 500 400 VOL [mV] 300 200 100 0 VDD=1.6 V VDD=2.5 V VDD=3.5 V VDD - VOH vs. Output Current 800 700 V OH [mV] 600 500 400 300 200 100 0 VDD=1.6 V VDD=2.5 V VDD=3.5 V VDD=5 V VDD=5 V V DD - 0 2 4 IOL [mA] 6 8 Fig. 6 0 2 4 IOH [mA] 6 8 Fig. 7 VOL vs. Supply Voltage 500 VDD - VOH vs. Supply Voltage 500 - V OH [mV] 400 IOH = 4mA 400 V OL [mV] 300 IOL = 4mA 300 200 100 IOH = 1mA IOH = 2mA IOL = 1mA IOL = 2mA 100 0 1.5 IOL = 500 mA V DD 200 0 3.5 VDD [V] 4.5 Fig. 8 1.5 IOH = 500 mA 2.5 2 2.5 3 3.5 VDD [V] 4 4.5 5 Fig. 9 [1]* Multiply value at +25 C by this factor to determine the value at temperature O 3 R V6340 Supply Current vs. Temperature 70 60 50 [mA] 40 30 20 10 0 -50 0 +50 TA [oC] +100 VDD = 5V VDD = 4V VDD = 3V VDD = 2V VDD = 1.6V 35 30 25 [mA] VDD = 5V 20 5 10 5 0 -50 DD I I DD Only for versions B, H, N -25 0 +25 +50 TA [oC] +75 +100 +125 Fig. 10 Normalized Threshold vs. Temperature 1.02 1.015 Typical Sensivity vs. Temperature 35 30 TSEN VDD VTH Output inactive Output active TSEN 400 mV Threshold [1]* 1.01 [mS] 1.005 1 0.995 0.99 0.985 0.98 -50 0 +50 TA [oC] +100 Fig. 11 10 5 25 20 15 T SEN Version C, I, O Version D, J, P Version F, L, R -50 -25 0 +25 o +50 +75 +100 +125 Fig. 12 TA [ C] Typical Sensivity vs. Temperature 740 700 T SEN [mS] 660 620 580 540 500 -50 -25 0 +25 +50 +75 +100 +125 Fig. 13 All Versions TSEN VDD VTH Output inactive Output active Typical Minimum Operating Supply Voltage (VDD) 1.6 1.4 Supply Voltage [V] 1.2 1 0.8 0.6 0.4 0.2 0 -40 TSEN 5V 2V -20 0 TA [oC] +20 +40 +60 +80 +100 +120 O TA [ C] Fig. 14 [1]* Multiply value at +25OC by this factor to determine the value at temperature 4 R V6340 Typical Applications Voltage Monitor with Manual Reset VDD R1 Use only an active low version VT = VTH + R1 - I DD VDD VDD Voltage Reference Reset Circuit with Hysteresis VDD R1 Use only an active low version VT- = VTH + R1 - IDD V -V VT+ = VTH + R1 TH OL IDD R2 R2 + Output 22nF Voltage Reference + Output VSS Fig. 15 VSS Fig. 16 Solar Cell Power O.K. Indicator VDD Voltage Reference + 820 W RES HLMP-1700 Load VSS Fig. 17 Accurate High Voltage Monitoring VIN R1 R2 Voltage Reference VCC VDD Out1 + Use only a push-pull version VT = R1 ( IDD + VTH ) + VTH R2 In1 OE VSS Output Fig. 18 5 R V6340 Pin Description TO-92 Pin 1 2 3 Name RES or RES VDD VSS Function Reset output Positive Supply Supply ground Table 5 SOT-23 Pin Name 1 2 3 RES or RES VDD VSS Function Reset output Positive Supply Supply ground Table 6 Packaging and Ordering Information Ordering Information The V6340 is available with Push-pull or Open drain output stage and Reset active low or high. Ordering form: V6340 Version letter definition Output stage Push-pull, Reset active low Push-pull, Reset active high Open drain, Reset active low Chip form on request Threshold Voltage [V] 1) 2.6 3.0 3.7 4.4 B C D F H I J L N O P R Table 7 V6340 P TO-92 When ordering, please specify the complete part number. EM Microelectronic-Marin SA cannot assume responsibility for use of any circuitry described other than circuitry entirely embodied in an EM Microelectronic-Marin product. EM Microelectronic-Marin reserves the right to change circuitry and specifications without notice at any time. You are strongly urged to ensure that the information given has not been superseded by a more up-to-date version. O 2000 EM Microelectronic-Marin SA, 10/00, Rev. E/336 EM Microelectronic-Marin SA, CH - 2074 Marin, Switzerland, Tel. (+41) 32 - 755 51 11, Fax (+41) 32 - 755 54 03 |
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