Order this document by MC34164/D The MC34164 series are undervoltage sensing circuits specifically designed for use as reset controllers in portable microprocessor based systems where extended battery life is required. These devices offer the designer an economical solution for low voltage detection with a single external resistor. The MC34164 series features a bandgap reference, a comparator with precise thresholds and built–in hysteresis to prevent erratic reset operation, an open collector reset output capable of sinking in excess of 6.0 mA, and guaranteed operation down to 1.0 V input with extremely low standby current. These devices are packaged in 3–pin TO–226AA, 8–pin SO–8 and Micro–8 surface mount packages. Applications include direct monitoring of the 3.0 or 5.0 V MPU/logic power supply used in appliance, automotive, consumer, and industrial equipment. • Temperature Compensated Reference • • • • • • • • MICROPOWER UNDERVOLTAGE SENSING CIRCUITS SEMICONDUCTOR TECHNICAL DATA P SUFFIX PLASTIC PACKAGE CASE 29 (TO–226AA) Monitors 3.0 V (MC34164–3) or 5.0 V (MC34164–5) Power Supplies 1 Pin 1. Reset 2. Input 3. Ground 2 3 Precise Comparator Thresholds Guaranteed Over Temperature Comparator Hysteresis Prevents Erratic Reset Reset Output Capable of Sinking in Excess of 6.0 mA D SUFFIX PLASTIC PACKAGE CASE 751 (SO–8) Internal Clamp Diode for Discharging Delay Capacitor Guaranteed Reset Operation With 1.0 V Input Extremely Low Standby Current: As Low as 9.0 µA 8 1 Economical TO–226AA, SO–8 and Micro–8 Surface Mount Packages DM SUFFIX PLASTIC PACKAGE CASE 846A (Micro–8) Representative Block Diagram Input 2 (2) Reset 8 1 Reset 1 8 N.C. Input 2 7 N.C. N.C. 3 6 N.C. Ground 4 5 N.C. (Top View) 1 (1) ORDERING INFORMATION Device 1.2 Vref Gnd 3 (4) = Sink Only Positive True Logic Pin numbers adjacent to terminals are for the 3–pin TO–226AA package. Pin numbers in parenthesis are for the 8–lead packages. This device contains 28 active transistors. MC34164D–3 MC34164D–5 MC34164DM–3 MC34164DM–5 MC34164P–3 MC34164P–5 MC33164D–3 MC33164D–5 MC33164DM–3 MC33164DM–5 MC33164P–3 MC33164P–5 Motorola, Inc. 1996 MOTOROLA ANALOG IC DEVICE DATA Operating Temperature Range Package SO–8 TA = 0° to +70°C Micro–8 TO–226AA SO–8 TA = –40° to +125°C Micro–8 TO–226AA Rev 1 1 MC34164 MC33164 MAXIMUM RATINGS Symbol Value Unit Power Input Supply Voltage Rating Vin –1.0 to 12 V Reset Output Voltage VO –1.0 to 12 V ISink Internally Limited mA IF 100 mA PD RθJA 700 178 mW °C/W PD RθJA 700 178 mW °C/W PD RθJA 520 240 mW °C/W Operating Junction Temperature TJ +150 °C Operating Ambient Temperature Range MC34164 Series MC33164 Series TA Reset Output Sink Current Clamp Diode Forward Current, Pin 1 to 2 (Note 1) Power Dissipation and Thermal Characteristics P Suffix, Plastic Package Maximum Power Dissipation @ TA = 25°C Thermal Resistance, Junction–to–Air D Suffix, Plastic Package Maximum Power Dissipation @ TA = 25°C Thermal Resistance, Junction–to–Air DM Suffix, Plastic Package Maximum Power Dissipation @ TA = 25°C Thermal Resistance, Junction–to–Air Storage Temperature Range NOTE: °C 0 to +70 – 40 to + 85 Tstg – 65 to +150 °C ESD data available upon request. MC34164–3, MC33164–3 SERIES ELECTRICAL CHARACTERISTICS (For typical values TA = 25°C, for min/max values TA is the operating ambient temperature range that applies [Notes 2 & 3], unless otherwise noted.) Characteristic Symbol Min Typ Max Unit VIH VIL VH 2.55 2.55 0.03 2.71 2.65 0.06 2.80 2.80 – – – 0.14 0.1 0.4 0.3 6.0 12 30 – – 0.02 0.02 0.5 1.0 VF 6.0 0.9 1.2 V Operating Input Voltage Range Vin 1.0 to 10 – – V Quiescent Input Current Vin = 3.0 V Vin = 6.0 V Iin – – 9.0 24 15 40 COMPARATOR Threshold Voltage High State Output (Vin Increasing) Low State Output (Vin Decreasing) Hysteresis (ISink = 100 µA) V RESET OUTPUT Output Sink Saturation (Vin = 2.4 V, ISink = 1.0 mA) (Vin = 1.0 V, ISink = 0.25 mA) Output Sink Current (Vin, Reset = 2.4 V) Output Off–State Leakage (Vin, Reset = 3.0 V) (Vin, Reset = 10 V) Clamp Diode Forward Voltage, Pin 1 to 2 (IF = 5.0 mA) VOL ISink IR(leak) V mA µA TOTAL DEVICE µA NOTES: 1. Maximum package power dissipation limits must be observed. 2. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible. 3. Tlow = 0°C for MC34164 Thigh = + 70°C for MC34164 3. Tlow = – 40°C for MC33164 Thigh = + 85°C for MC33164 2 MOTOROLA ANALOG IC DEVICE DATA MC34164 MC33164 MC34164–5, MC33164–5 SERIES ELECTRICAL CHARACTERISTICS (For typical values TA = 25°C, for min/max values TA is the operating ambient temperature range that applies [Notes 2 & 3], unless otherwise noted.) Characteristic Symbol Min Typ Max Unit VIH VIL VH 4.15 4.15 0.02 4.33 4.27 0.09 4.45 4.45 – – – 0.14 0.1 0.4 0.3 7.0 20 50 – – 0.02 0.02 0.5 2.0 VF 0.6 0.9 1.2 V Operating Input Voltage Range Vin 1.0 to 10 – – V Quiescent Input Current Vin = 5.0 V Vin = 10 V Iin – – 12 32 20 50 COMPARATOR Threshold Voltage High State Output (Vin Increasing) Low State Output (Vin Decreasing) Hysteresis (ISink = 100 µA) V RESET OUTPUT Output Sink Saturation (Vin = 4.0 V, ISink = 1.0 mA) (Vin = 1.0 V, ISink = 0.25 mA) VOL Output Sink Current (Vin, Reset = 4.0 V) V ISink IR(leak) Output Off–State Leakage (Vin, Reset = 5.0 V) (Vin, Reset = 10 V) Clamp Diode Forward Voltage, Pin 1 to 2 (IF = 5.0 mA) mA µA TOTAL DEVICE µA NOTES: 2. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible. 3. Tlow = 0°C for MC34164 Thigh = + 70°C for MC34164 3. Tlow = – 40°C for MC33164 Thigh = + 85°C for MC33164 Figure 1. MC3X164–3 Reset Output Voltage versus Input Voltage Figure 2. MC3X164–5 Reset Output Voltage versus Input Voltage 10 RL = 82 k to Vin TA = 25°C 8.0 VO , OUTPUT VOLTAGE (V) VO , OUTPUT VOLTAGE (V) 10 6.0 4.0 2.0 RL = 82 k to Vin TA = 25°C 8.0 6.0 4.0 2.0 0 0 0 2.0 4.0 6.0 Vin, INPUT VOLTAGE (V) MOTOROLA ANALOG IC DEVICE DATA 8.0 10 0 2.0 4.0 6.0 8.0 10 Vin, INPUT VOLTAGE (V) 3 MC34164 MC33164 Figure 4. MC3X164–5 Reset Output Voltage versus Input Voltage 5.0 5.0 4.0 4.0 V O , OUTPUT VOLTAGE (V) V O , OUTPUT VOLTAGE (V) Figure 3. MC3X164–3 Reset Output Voltage versus Input Voltage 3.0 2.0 1.0 3.0 2.0 1.0 RL = 82 k to Vin TA = 25°C RL = 82 k to Vin TA = 25°C 0 2.62 2.66 2.70 2.74 0 4.22 2.78 4.26 Vin, INPUT VOLTAGE (V) Upper Threshold High State Output V in , THRESHOLD VOLTAGE (V) V in , THRESHOLD VOLTAGE (V) 4.36 2.72 2.68 2.64 Lower Threshold Low State Output 2.60 – 50 – 25 0 25 50 75 100 Upper Threshold High State Output 4.32 4.28 4.24 Lower Threshold Low State Output 4.20 – 50 125 – 25 0 25 50 75 100 125 TA, AMBIENT TEMPERATURE (°C) TA, AMBIENT TEMPERATURE (°C) Figure 7. MC3X164–3 Input Current versus Input Voltage Figure 8. MC3X164–5 Input Current versus Input Voltage 50 50 TA = 25°C 40 I in, INPUT CURRENT ( µA) I in, INPUT CURRENT ( µA) 4.38 Figure 6. MC3X164–5 Comparator Threshold Voltage versus Temperature 2.76 30 TA = 0°C 20 TA = 70°C 10 0 2.0 4.0 6.0 Vin, INPUT VOLTAGE (V) 4 4.34 Vin, INPUT VOLTAGE (V) Figure 5. MC3X164–3 Comparator Threshold Voltage versus Temperature 0 4.30 8.0 10 40 TA = 25°C 30 20 TA = 0°C TA = 70°C 10 0 0 2.0 4.0 6.0 8.0 10 Vin, INPUT VOLTAGE (V) MOTOROLA ANALOG IC DEVICE DATA MC34164 MC33164 Figure 9. MC3X164–3 Reset Output Saturation versus Sink Current Figure 10. MC3X164–5 Reset Output Saturation versus Sink Current 4.0 Vin = 2.4 V 3.0 V OL, OUTPUT SATURATION (V) V OL, OUTPUT SATURATION (V) 4.0 TA = 70°C TA = 25°C 2.0 TA = 0°C TA = 25°C TA = 0°C 1.0 TA = 70°C TA = 25°C Vin, Reset = 4 V TA = 70°C TA = 0°C 3.0 TA = 25°C 2.0 TA = 0°C 1.0 TA = 70°C 0 0 0 4.0 8.0 12 16 20 0 4.0 8.0 12 16 VSink, SINK CURRENT (mA) ISink, SINK CURRENT (mA) Figure 11. Clamp Diode Forward Current versus Voltage Figure 12. Reset Delay Time (MC3X164–5 Shown) 20 I F , FORWARD CURRENT (mA) 32 Vin = 5.0 V to 4.0 V RL = 43 k TA = 25°C Reset Vin = 0 V TA = 25°C 24 90% Vin 5.0 V 16 4.0 V Vin 8.0 10 % 43k 5.0V 4.0V Reset Ref 0 0 0.4 0.8 1.2 5.0 µs/DIV 1.6 VF , FORWARD VOLTAGE (V) Figure 13. Low Voltage Microprocessor Reset R 2 (2) Power Supply Reset 1 (1) Microprocessor Circuit CDLY 1.2 Vref tDLY = RCDLY In 3 (4) ǒ1 – 1 Vth(MPU) Ǔ Vin A time delayed reset can be accomplished with the addition of CDLY. For systems with extremely fast power supply rise times (< 500 ns) it is recommended that the RCDLY time constant be greater than 5.0 µs. Vth(MPU) is the microprocessor reset input threshold. MOTOROLA ANALOG IC DEVICE DATA 5 MC34164 MC33164 Figure 14. Low Voltage Microprocessor Reset With Additional Hysteresis (MC3X164–5 Shown) Test Data RH Iin 2 (2) Vin RL Power Supply 1.2 Vref MC3X164–5 Microprocessor Circuit Reset 1 (1) VH ≈ 4.3 RH + 0.06 RL ∆Vth(lower) ≈ 10 RH x 10 – 6 3 (4) where: RH ≤ 1.0 kΩ 43 kΩ ≥ RL ≥ 4.3 kΩ VH (mV) ∆Vth (mV) RH (Ω) RL (kΩ) 60 103 123 160 155 199 280 262 306 357 421 530 0 1.0 1.0 1.0 2.2 2.2 2.2 4.7 4.7 4.7 4.7 4.7 0 100 100 100 220 220 220 470 470 470 470 470 43 10 6.8 4.3 10 6.8 4.3 10 8.2 6.8 5.6 4.3 Comparator hysteresis can be increased with the addition of resistor RH. The hysteresis equation has been simplified and does not account for the change of input current Iin as Vin crosses the comparator threshold (Figure 8). An increase of the lower threshold ∆Vth(lower) will be observed due to Iin which is typically 10 µA at 4.3 V. The equations are accurate to ±10% with RH less than 1.0 kΩ and RL between 4.3 kΩ and 43 kΩ. Figure 15. Voltage Monitor Figure 16. Solar Powered Battery Charger 2 (2) 1.0 k 2 (2) Power Supply 1 (1) 1 (1) Solar Cells 1.2 Vref 1.2 Vref 3 (4) 3 (4) Figure 17. MOSFET Low Voltage Gate Drive Protection Using the MC3X164–5 VCC RL MTP3055EL 270 4.3V 2 (2) 1 (1) 1.2 Vref Overheating of the logic level power MOSFET due to insufficient gate voltage can be prevented with the above circuit. When the input signal is below the 4.3 V threshold of the MC3X164–5, its output grounds the gate of the L2 MOSFET. 3 (4) MC3X164–5 6 MOTOROLA ANALOG IC DEVICE DATA MC34164 MC33164 OUTLINE DIMENSIONS A P SUFFIX PLASTIC PACKAGE CASE 29–04 (TO–226AA) ISSUE AD B R P L F SEATING PLANE NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. CONTOUR OF PACKAGE BEYOND DIMENSION R IS UNCONTROLLED. 4. DIMENSION F APPLIES BETWEEN P AND L. DIMENSION D AND J APPLY BETWEEN L AND K MINIMUM. LEAD DIMENSION IS UNCONTROLLED IN P AND BEYOND DIMENSION K MINIMUM. K DIM A B C D F G H J K L N P R V D X X G J H V C SECTION X–X 1 N N D SUFFIX PLASTIC PACKAGE CASE 751–05 (SO–8) ISSUE P B M –A– J M 5 4 X 45 _ 1 R 4X –B– 0.25 (0.010) P 8 F C –T– K SEATING PLANE 8X D 0.25 (0.010) M T B MOTOROLA ANALOG IC DEVICE DATA S A S MILLIMETERS MIN MAX 4.45 5.20 4.32 5.33 3.18 4.19 0.41 0.55 0.41 0.48 1.15 1.39 2.42 2.66 0.39 0.50 12.70 ––– 6.35 ––– 2.04 2.66 ––– 2.54 2.93 ––– 3.43 ––– NOTES: 1. DIMENSIONS A AND B ARE DATUMS AND T IS A DATUM SURFACE. 2. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 3. DIMENSIONS ARE IN MILLIMETER. 4. DIMENSION A AND B DO NOT INCLUDE MOLD PROTRUSION. 5. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 6. DIMENSION D DOES NOT INCLUDE MOLD PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. G M_ INCHES MIN MAX 0.175 0.205 0.170 0.210 0.125 0.165 0.016 0.022 0.016 0.019 0.045 0.055 0.095 0.105 0.015 0.020 0.500 ––– 0.250 ––– 0.080 0.105 ––– 0.100 0.115 ––– 0.135 ––– DIM A B C D F G J K M P R MILLIMETERS MIN MAX 4.80 5.00 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27 BSC 0.18 0.25 0.10 0.25 0_ 7_ 5.80 6.20 0.25 0.50 7 MC34164 MC33164 OUTLINE DIMENSIONS DM SUFFIX PLASTIC PACKAGE CASE 846A–02 (Micro–8) ISSUE B –A– –B– K PIN 1 ID G D 8 PL 0.08 (0.003) –T– M T B S A S SEATING PLANE 0.038 (0.0015) C H J L NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSION A DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 4. DIMENSION D DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION. INTERLEAD FLASH OR PROTRUSION SHALL NOT EXCEED 0.25 (0.010) PER SIDE. DIM A B C D G H J K L MILLIMETERS MIN MAX 2.90 3.10 2.90 3.10 ––– 1.10 0.25 0.40 0.65 BSC 0.05 0.15 0.13 0.23 4.75 5.05 0.40 0.70 INCHES MIN MAX 0.114 0.122 0.114 0.122 ––– 0.043 0.010 0.016 0.026 BSC 0.002 0.006 0.005 0.009 0.187 0.199 0.016 0.028 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. 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Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 or 602–303–5454 JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315 MFAX: [email protected] – TOUCHTONE 602–244–6609 INTERNET: http://Design–NET.com ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 8 ◊ *MC34164/D* MOTOROLA ANALOG IC DEVICE DATA MC34164/D