Order this document by MC34160/D The MC34160 Series is a voltage regulator and supervisory circuit containing many of the necessary monitoring functions required in microprocessor based systems. It is specifically designed for appliance and industrial applications, offering the designer a cost effective solution with minimal external components. These integrated circuits feature a 5.0 V/100 mA regulator with short circuit current limiting, pinned out 2.6 V bandgap reference, low voltage reset comparator, power warning comparator with programmable hysteresis, and an uncommitted comparator ideally suited for microprocessor line synchronization. Additional features include a chip disable input for low standby current, and internal thermal shutdown for over temperature protection. These devices are contained in a 16 pin dual–in–line heat tab plastic package for improved thermal conduction. • 5.0 V Regulator Output Current in Excess of 100 mA • • • • • • • • MICROPROCESSOR VOLTAGE REGULATOR/ SUPERVISORY CIRCUIT SEMICONDUCTOR TECHNICAL DATA 16 1 P SUFFIX PLASTIC PACKAGE CASE 648C (DIP–16) Internal Short Circuit Current Limiting Pinned Out 2.6 V Reference Low Voltage Reset Comparator 16 Power Warning Comparator with Programmable Hysteresis 1 Uncommitted Comparator DW SUFFIX PLASTIC PACKAGE CASE 751G (SOP–16L) Low Standby Current Internal Thermal Shutdown Protection Heat Tab Power Package Representative Block Diagram VCC 14 + Thermal Shutdown Chip Disable 15 Power Sense 9 Hysteresis Adjust 10 Noninverting Input 2 Inverting Input 1 PIN CONNECTIONS Regulator Output 11 0.913 R – + 2.6 V Reference + 0.01 R – Reset 7 R Reference Output 16 Power Warning 8 + – + IH IH On/Off Comp. Inv. In 1 16 Vref Comp. Noninv. In 2 15 Chip Disable N.C. 3 14 VCC 4 13 5 12 Comp. Out 6 11 Reg. Out Reset 7 10 Hyst. Adj. Power Warning 8 9 Power Sense Gnd Gnd (Top View) + Comparator Output 6 + – ORDERING INFORMATION Device Gnd 4, 5, 12, 13 Operating Temperature Range MC34160DW TA = 0° to +70°C MC34160P This device contains 72 active transistors. MC33160DW MC33160P SOP–16L DIP–16 SOP–16L TA = – 40° to +85°C Motorola, Inc. 1996 MOTOROLA ANALOG IC DEVICE DATA Package DIP–16 Rev 1 1 MC34160 MC33160 MAXIMUM RATINGS Rating Symbol Value Unit Power Supply Voltage VCC 40 V Chip Disable Input Voltage (Pin 15, Note 1) VCD –0.3 to VCC V Comparator Input Current (Pins 1, 2, 9) Iin –2.0 to +2.0 mA Comparator Output Voltage (Pins 6, 7, 8) VO 40 V ISink 10 Comparator Output Sink Current (Pins 6, 7, 8) Power Dissipation and Thermal Characteristics P Suffix, Dual–In–Line Case 648C Thermal Resistance, Junction–to–Air Thermal Resistance, Junction–to–Case (Pins 4, 5, 12, 13) DW Suffix, Surface Mount Case 751G Thermal Resistance, Junction–to–Air Thermal Resistance, Junction–to–Case (Pins 4, 5, 12, 13) RθJA RθJC 80 15 RθJA RθJC 94 18 Operating Junction Temperature TJ +150 Operating Ambient Temperature MC34160 MC33160 TA Storage Temperature Range mA °C/W °C °C 0 to +70 –40 to +85 Tstg –65 to +150 °C ELECTRICAL CHARACTERISTICS (VCC = 30 V, IO = 10 mA, Iref = 100 µA) For typical values TA = 25°C, for min/max values TA is the operating ambient temperature range that applies [Notes 2 and 3], unless otherwise noted.) Characteristics Symbol Min Typ Max Unit VO 4.75 5.0 5.25 V Line Regulation (VCC = 7.0 V to 40 V, TA = 25°C) Regline – 5.0 40 mV Load Regulation (IO = 1.0 V to 100 mA, TA = 25°C) Regload – 20 50 mV RR 50 6.5 – dB Vref 2.47 2.6 2.73 V Line Regulation (VCC = 5.0 V to 40 V, TA = 25°C) Regline – 2.0 20 mV Load Regulation (IO = 0.1 mA to 2.0 mA, TA = 25°C) Regload – 4.0 30 mV Threshold Voltage High State Output (Pin 11 Increasing) Low State Output (Pin 11 Decreasing) Hysteresis VIH VIL VH – 4.55 0.02 (VO–0.11) (VO–0.18) 0.07 (VO–0.05) – – Output Sink Saturation (VCC = 4.5 V, ISink = 2.0 mA) VOL – – 0.4 V Output Off–State Leakage (VOH = 40 V) IOH – – 4.0 µA REGULATOR SECTION Total Output Variation (VCC = 7.0 V to 40 V, IO = 1.0 mA to 100 mA, TA = Tlow to Thigh) Ripple Rejection (VCC = 25 V to 35 V, IO = 40 mA, f = 120 Hz, TA = 25°C) REFERENCE SECTION Total Output Variation (VCC = 7.0 to 40 V, IO = 0.1 mA to 2.0 mA, TA = Tlow to Thigh) RESET COMPARATOR V NOTES: 1. The maximum voltage range is –0.3 V to VCC or +35 V, whichever is less. 2. Tlow = 0°C for MC34160 Thigh = 70°C for MC34160 –40°C for MC33160 85°C for MC33160 3. Low duty cycle pulse testing techniques are used during test to maintain junction temperature as close to ambient as possible. 2 MOTOROLA ANALOG IC DEVICE DATA MC34160 MC33160 ELECTRICAL CHARACTERISTICS (continued) (VCC = 30 V, IO = 10 mA, Iref = 100 µA) For typical values TA = 25°C, for min/max values TA is the operating ambient temperature range that applies [Notes 2 and 3], unless otherwise noted.) Characteristics Symbol Min Typ Max Unit Input Offset Voltage VIO – Input Bias Current (VPin 9 = 3.0 V) IIB – 1.2 10 mV – 0.5 µA Input Hysteresis Current (VPin 9 = Vref – 100 mV) RPin 10 = 24 k RPin 10 = ∞ IH 40 4.5 50 7.5 60 11 POWER WARNING COMPARATOR µA Output Sink Saturation (ISink = 2.0 mA) VOL – 0.13 0.4 V Output Off–State Leakage (VOH = 40 V) IOH – – 4.0 µA VIO – – 20 mV Input Hysteresis Voltage (Output Transition High to Low) IH 140 200 260 mV Input Bias Current (VPin 1, 2 = 2.6 V) IIB – – –1.0 µA Input Common Mode Voltage Range VICR 0.6 to 5.0 – – V Output Sink Saturation (ISink = 2.0 mA) VOL – 0.13 0.4 V Output Off–State Leakage (VOH = 40 V) IOH – – 4.0 µA Chip Disable Threshold Voltage (Pin 15) High State (Chip Disabled) Low State (Chip Enabled) VIH VIL 2.5 – – – – 0.8 Chip Disable Input Current (Pin 15) High State (Vin = 2.5 V) Low State (Vin = 0.8 V) IIH IIL – – – – 100 30 Rin 50 100 – 7.0 to 40 5.0 to 40 – – – – – – 0.18 1.5 0.35 3.0 UNCOMMITTED COMPARATOR Input Offset Voltage (Output Transition Low to High) TOTAL DEVICE V µA Chip Disable Input Resistance (Pin 15) Operating Voltage Range VO (Pin 11) Regulated Vref (Pin 16) Regulated VCC Power Supply Current Standby (Chip Disable High State) Operating (Chip Disable Low State) ICC kΩ V mA Figure 1. Regulator Output Voltage Change versus Source Current Figure 2. Reference and Regulator Output versus Supply Voltage 0 6.0 RL = OUTPUT VOLTAGE (V) ∆ V O , REGULATOR OUTPUT VOLTAGE CHANGE (mV) NOTES: 1. The maximum voltage range is –0.3 V to VCC or +35 V, whichever is less. 2. Tlow = 0°C for MC34160 Thigh = 70°C for MC34160 –40°C for MC33160 85°C for MC33160 3. Low duty cycle pulse testing techniques are used during test to maintain junction temperature as close to ambient as possible. –4.0 –8.0 VCC = 7.5 V TA = 25°C –12 MOTOROLA ANALOG IC DEVICE DATA RL = 50 Ω 4.0 Reference Output RL = 1 2.0 0 40 80 120 IO, REGULATOR OUTPUT SOURCE CURRENT (mA) Regulator Output TA = 25°C –16 0 1 160 0 10 20 30 VCC, SUPPLY VOLTAGE (V) 40 3 Figure 3. Reference Output Voltage Change versus Source Current Figure 4. Power Warning Hysteresis Current versus Programming Resistor 0 60 I H , HYSTERESIS CURRENT (µ A) –8.0 –16 VCC = 7.5 V TA = 25°C –24 40 20 –32 0 2.0 4.0 6.0 0 8.0 20 40 60 120 140 RH, PROGRAMMING RESISTOR (kW) Figure 5. Power Warning Comparator Delay versus Temperature Figure 6. Uncommitted Comparator Delay versus Temperature VCC = 30 V Vin (Pin 9) = 2.5 V to 2.7 V RL = 2.4 k to VO t DLY , OUTPUT DELAY TIME (ns) Output Rise 600 Output Fall 400 –25 0 25 50 75 100 360 Output Fall 200 –25 0 25 R θJA, THERMAL RESISTANCE JUNCTION TO AIR ( °C/W) VCC = 6.0 V VPin 1 = Vref VPin 2, 9 = 10 kΩ to Gnd Vsat = Pins 6, 7, 8 TA = 25°C 0.2 TA = 85°C TA = –40°C 0.1 0 0 2.0 4.0 ISink, SINK CURRENT (mA) 6.0 75 100 125 Figure 8. P Suffix (DIP–16) Thermal Resistance and Maximum Power DIssipation versus P.C.B. Copper Length 100 0.5 0.3 50 TA, AMBIENT TEMPERATURE (°C) Figure 7. Comparator Output Saturation versus Sink Current 0.4 Output Rise 280 120 –55 125 VCC = 30 V VPin 1 = 2.5 V to 2.9 V VPin 2 = 2.6 V RL = 2.4 k to VO TA, AMBIENT TEMPERATURE (°C) V OL , OUTPUT SATURATION (V) 100 440 200 –55 4 80 Iref, REFERENCE OUTPUT SOURCE CURRENT (mA) 800 t DLY, OUTPUT DELAY TIME (ns) VCC = 30 V VPin 9 = 2.5 V TA = 25°C 8.0 ÉÉÉÉÉÉ ÉÉÉ ÉÉÉ ÉÉÉÉÉÉ 5.0 Printed circuit board heatsink example 80 L RθJA 60 L 3.0 mm Graphs represent symmetrical layout 40 3.0 2.0 PD(max) for TA = 70°C 20 0 4.0 2.0 oz. Copper 0 10 20 1.0 30 40 P D, MAXIMUM POWER DISSIPATION (W) ∆ V ref , REFERENCE OUTPUT VOLTAGE CHANGE (mV) MC34160 MC33160 0 50 L, LENGTH OF COPPER (mm) MOTOROLA ANALOG IC DEVICE DATA MC34160 MC33160 JUNCTION-TO-AIR (°C/W) R θ JA, THERMAL RESISTANCE 100 2.8 PD(max) for TA = 50°C 90 80 2.4 ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ Graph represents symmetrical layout 70 L 60 1.6 2.0 oz. Copper 1.2 L 50 3.0 mm RθJA 40 10 0.8 0.4 30 0 2.0 20 30 L, LENGTH OF COPPER (mm) 40 0 50 PD, MAXIMUM POWER DISSIPATION (W) Figure 9. DW Suffix (SOP–16L) Thermal Resistance and Maximum Power Dissipation versus P.C.B. Copper Length PIN FUNCTION DESCRIPTION Pin Function Description 1 Comparator Inverting Input This is the Uncommitted Comparator Inverting input. It is typically connected to a resistor divider to monitor a voltage. 2 Comparator Noninverting Input This is the Uncommitted Comparator Noninverting input. It is typically connected to a reference voltage. 3 N.C. No connection. This pin is not internally connected. 4, 5, 12, 13 Gnd These pins are the control circuit grounds and are connected to the source and load ground returns. They are part of the IC lead frame and can be used for heatsinking. 6 Comparator Output This is the Uncommitted Comparator output. It is an open collector sink–only output requiring a pull–up resistor. 7 Reset This is the Reset Comparator output. It is an open collector sink–only output requiring a pull–up resistor. 8 Power Warning This is the Power Warning Comparator output. It is an open collector sink–only output requiring a pull–up resistor. 9 Power Sense This is the Power Warning Comparator noninverting input. It is typically connected to a resistor divider to monitor the input power source voltage. 10 Hysteresis Adjust The Power Warning Comparator hysteresis is programmed by a resistor connected from this pin to ground. 11 Regulator Output This is the 5.0 V Regulator output. 14 VCC Chip Disable This pin is the positive supply input of the control IC. 15 16 Vref This is the 2.6 V Reference output. It is intended to be used in conjunction with the Power Warning and Uncommitted comparators. This input is used to switch the IC into a standby mode turning off all outputs. OPERATING DESCRIPTION The MC34160 series is a monolithic voltage regulator and supervisory circuit containing many of the necessary monitoring functions required in microprocessor based systems. It is specifically designed for appliance and industrial applications, offering the designer a cost effective solution with minimal external components. These devices are specified for operation over an input voltage of 7.0 V to 40 V, and with a junction temperature of –40° to +150°C. A typical microprocessor application is shown in Figure 10. Regulator The 5.0 V regulator is designed to source in excess of 100 mA output current and is short circuit protected. The output has a guaranteed tolerance of ±5.0% over line, load, and temperature. Internal thermal shutdown circuitry is included to limit the maximum junction temperature to a safe MOTOROLA ANALOG IC DEVICE DATA level. When activated, typically at 170°C, the regulator output turns off. In specific situations a combination of input and output bypass capacitors may be required for regulator stability. If the regulator is located an appreciable distance (≥ 4″) from the supply filter, an input bypass capacitor (Cin) of 0.33 µF or greater is suggested. Output capacitance values of less than 5.0 nF may cause regulator instability at light load (≤ 1.0 mA) and cold temperature. An output bypass capacitor of 0.1 µF or greater is recommended to ensure stability under all load conditions. The capacitors selected must provide good high frequency characteristics. Good construction techniques should be used to minimize ground loops and lead resistance drops since the regulator does not have external sense inputs. 5 MC34160 MC33160 The nominal hysteresis current I H equals 1.2 V/RH (Figure 4). The Uncommitted Comparator can be used to synchronize the microprocessor with the ac line signal for timing functions, or for synchronous load switching. It can also be connected as a line loss detector as shown in Figure 11. The comparator contains 200 mV of hysteresis preventing erractic output behavior when crossing the input threshold. The Power Warning and Uncommitted Comparators each have a transistor base–emitter connected across their inputs. The base input normally connects to a voltage reference while the emitter input connects to the voltage to be monitored. The transistor limits the negative excursion on the emitter input to – 0.7 V below the base input by supply current from VCC. This clamp current will prevent forward biasing the IC substrate. Zener diodes are connected to the comparator inputs to enhance the ICs electrostatic discharge capability. Resistors R1 and Rin must limit the input current to a maximum of ±2.0 mA. Each comparator output consists of an open collector NPN transistor capable of sinking 2.0 mA with a saturation voltage less than 0.4 V, and standing off 40 V with minimal leakage. Internal bias for the Reset and Power Warning Comparators is derived from either VCC or the regulator output to ensure functionality when either is below nominal. Reference The 2.6 V bandgap reference is short circuit protected and has a guaranteed output tolerance of ±5.0% over line, load, and temperature. It is intended to be used in conjunction with the Power Warning and Uncommitted comparator. The reference can source in excess of 2.0 mA and sink a maximum of 10 µA. For additional current sinking capability, an external load resistor to ground must be used. Reference biasing is internally derived from either VCC or VO, allowing proper operation if either drops below nominal. Chip Disable This input is used to switch the IC into a standby mode. When activated, internal biasing for the entire die is removed causing all outputs to turn off. This reduces the power supply current (ICC) to less than 0.3 mA. Comparators Three separate comparators are incorporated for voltage monitoring. Their outputs can provide diagnostic information to the microprocessor, preventing system malfunctions. The Reset Comparator Inverting Input is internally connected to the 2.6 V reference while the Noninverting Input monitors VO. The Reset Output is active low when VO falls approximately 180 mV below its regulated voltage. To prevent erratic operation when crossing the comparator threshold, 70 mV of hysteresis is provided. The Power Warning Comparator is typically used to detect an impending loss of system power. The Inverting Input is internally connected to the reference, fixing the threshold at 2.6 V. The input power source Vin is monitored by the Noninverting Input through the R1/R2 divider (Figure 10). This input features an adjustable 10 µA to 50 µA current sink IH that is programmed by the value selected for resistor RH. A default current of 6.5 µA is provided if RH is omitted. When the comparator input falls below 2.6 V, the current sink is activated. This produces hysteresis if Vin is monitored through a series resistor (R1). The comparator thresholds are defined as follows: R1 – IIB R1 Vth(lower) = Vref 1 + R2 R1 + IH R1 Vth(upper) = Vref 1 + R2 Heat Tab Package The MC34160 is contained in a 16 lead plastic dual–in–line package in which the die is mounted on a special Heat Tab copper alloy lead frame. This tab consists of the four center ground pins that are specifically designed to improve thermal conduction from the die to the surrounding air. The pictorial in Figure 8 shows a simple but effective method of utilizing the printed circuit board medium as a heat dissipator by soldering these tabs to an adequate area of copper foil. This permits the use of standard board layout and mounting practices while having the ability to more than halve the junction to air thermal resistance. The example and graph are for a symmetrical layout on a single sided board with one ounce per square foot copper. Figure 10. Typical Microprocessor Application VCC Vin + 14 Cin Thermal Shutdown – + R1 Chip Disable 15 2.6 V Reference .01 R – + RH AC Line Rin MPU Reset 7 Power Warning Vref 16 Power Warning 8 IH On/Off 1 + + – Uncommitted Comparator Line Sync. 6 4, 5, 12, 13 6 VO 10 2 2.6 V CO R + IH + – Reset 9 R2 11 0.913 R + – Sink Only = Positive True Logic MOTOROLA ANALOG IC DEVICE DATA MC34160 MC33160 Figure 11. Line Loss Detector Application VCC Vin + 14 Cin Chip Disable 2.6 V Reference 15 2.6 V Pin 6 2.6 V Reset R + + – IH CO Vref Line Loss Output 8 IH On/Off 10 RDLY + 2 + – Rin 1 A VO MPU Reset 7 10 Power Warning 9 Pin 8 AC Line + – .01 R R1 Point A 11 0.913 R Thermal Shutdown – + Uncommitted Comparator 6 4, 5, 12, 13 CDLY = Sink Only + – IH RDLY – VO Vref + IH R1 – VO + IH RDLY tDLY ≈ RDLY CDLY ln Positive True Logic Figure 12. Time Delayed Microprocessor Reset VCC Vin Cin + 14 .01 R – + R1 Chip Disable 15 2.6 V Reference + + – IH + – Reset R 9 R2 11 0.913 R Thermal Shutdown Power Warning CO VO 7 16 Vref RDLY 8 IH On/Off RH 10 + 2 + – 1 MPU Reset 6 4, 5, 12, 13 3.6 k 6.2 k Uncommitted Comparator tDLY RDLY CDLY CDLY + – MOTOROLA ANALOG IC DEVICE DATA Sink Only = Positive True Logic 7 MC34160 MC33160 OUTLINE DIMENSIONS P SUFFIX PLASTIC PACKAGE CASE 648C–03 (DIP–16) –A– 16 9 1 8 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. INTERNAL LEAD CONNECTION, BETWEEN 4 AND 5, 12 AND 13. –B– L NOTE 5 DIM A B C D E F G J K L M N C –T– M N SEATING PLANE K E F J 16 PL 0.13 (0.005) G D 16 PL 0.13 (0.005) T M A DW SUFFIX PLASTIC PACKAGE CASE 751G–02 (SOP–16L) 9 –B– P 8 PL 0.25 (0.010) 1 M B M 8 G 14 PL J F R X 45° C –T– D 16 PL 0.25 (0.010) M T B S S –A– 16 M K SEATING PLANE T A S B M S INCHES MIN MAX 0.740 0.840 0.240 0.260 0.145 0.185 0.015 0.021 0.050 BSC 0.040 0.070 0.100 BSC 0.008 0.015 0.115 0.135 0.300 BSC 0° 10° 0.015 0.040 MILLIMETERS MIN MAX 18.80 21.34 6.10 6.60 3.69 4.69 0.38 0.53 1.27 BSC 1.02 1.78 2.54 BSC 0.20 0.38 2.92 3.43 7.62 BSC 0° 10° 0.39 1.01 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.13 (0.005) TOTAL IN EXCESS OF D DIMENSION AT MAXIMUM MATERIAL CONDITION. DIM A B C D F G J K M P R MILLIMETERS MIN MAX 10.15 10.45 7.60 7.40 2.65 2.35 0.49 0.35 0.90 0.50 1.27 BSC 0.32 0.25 0.25 0.10 7° 0° 10.05 10.55 0.25 0.75 INCHES MIN MAX 0.400 0.411 0.292 0.299 0.093 0.104 0.014 0.019 0.020 0.035 0.050 BSC 0.010 0.012 0.004 0.009 0° 7° 0.395 0.415 0.010 0.029 Motorola reserves the right to make changes without further notice to any products herein. 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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 ◊ *MC34160/D* MOTOROLA ANALOG IC DEVICE DATA MC34160/D