Order this document by LM2935/D The LM2935 is a dual positive 5.0 V low dropout voltage regulator, designed for standby power systems. The main output is capable of supplying 750 mA for microprocessor power, and can be turned “on” and “off” by the switch/reset input. The other output is dedicated for standby operation of volatile memory, and is capable of supplying up to 10 mA loads. The total device features a low quiescent current of 3.0 mA or less when supplying 10 mA from the standby output. This part was designed for harsh automotive environments and is therefore immune to many input supply voltage problems such as reverse battery (–12 V), double battery (+24 V), and load dump transients (+60 V). • Two Regulated 5.0 V Outputs • • • • • • • • • • LOW DROPOUT DUAL VOLTAGE REGULATOR SEMICONDUCTOR TECHNICAL DATA TH SUFFIX PLASTIC PACKAGE CASE 314A Main Output Current in Excess of 750 mA On/Off Control of Main Output 1 5 Standby Output Current in Excess of 10 mA Low Input/Output Differential of Less than 0.6 V at 500 mA Short Circuit Current Limiting TV SUFFIX PLASTIC PACKAGE CASE 314B Internal Thermal Shutdown 1 Low Voltage Indicator Output 5 Designed for Automotive Environment Including • • • • Reverse Battery Protection Double Battery Protection Load Dump Protection Reverse Transient Protection Economical 5–Lead TO–220 Package with Two Optional Leadforms Also Available in Surface Mount D2PAK Package Heatsink surface connected to Pin 3. T SUFFIX PLASTIC PACKAGE CASE 314D 1 5 Pin 1. Input Voltage/VCC 2. Main Output 3. Ground 4. Switch/Reset 5. Standby/Output D2T SUFFIX PLASTIC PACKAGE CASE 936A (D2PAK) ORDERING INFORMATION Device Tested Operating Temperature Range LM2935D2T LM2935T LM2935TH Package Surface Mount TJ = –40° to +125°C LM2935TV 1 5 Plastic Power Horizontal Mount Vertical Mount Heatsink surface (shown as terminal 6 in case outline drawing) is connected to Pin 3. Motorola, Inc. 1995 MOTOROLA ANALOG IC DEVICE DATA Rev 1 1 LM2935 Typical Application Circuit Main Output Input Vin 1 5.0 V/750 mA 2 + S1* *The main output is “Off” with switch S1 open. 0.1 10 LM2935 20 k Standby Switch /Reset 4 5.0 V/10 mA 5 + 3 10 Gnd An input bypass capacitor is recommended if the regulator is located more than 4″ from the supply input filter. The LM2935 is not internally compensated and thus requires an external output capacitor for stability. A minimum capacitance of 10 µF is recommended. The actual capacitance value is dependent upon load current, temperature, and the capacitor’s equivalent series resistance (ESR). The least stable condition is encountered at maximum load current and minimum ambient temperature. This device contains 29 active transistors. MAXIMUM RATINGS Rating Input Voltage Continuous Transient Reverse Polarity Input Voltage 1.0% Duty Cycle, τ ≤ 100 ms Switch/Reset Input Current Power Dissipation Case 314A, 314B and 314D (TO–220 Type) TA = 25°C Thermal Resistance, Junction–to–Ambient Thermal Resistance, Junction–to–Case Case 936A (D2PAK) TA = 25°C Thermal Resistance, Junction–to–Ambient Thermal Resistance, Junction–to–Case Operating Junction Temperature Range Storage Temperature Range 2 Symbol Value Unit VI 60 Vdc –VI(τ) – 50 Vpk Iin 5.0 mA PD RθJA RθJC Internally Limited 65 5.0 W °C/W °C/W PD RθJA RθJC Internally Limited Per Figure 1 5.0 W °C/W °C/W TJ – 40 to +150 °C Tstg – 65 to +150 °C MOTOROLA ANALOG IC DEVICE DATA LM2935 ELECTRICAL CHARACTERISTICS (Vin = 14 V, IO = 500 mA, Istby = 0 mA, CO = 10 µF, Cstby = 10 µF, TJ = 25°C [Note 1].) Characteristic Symbol Min Typ Max VO 4.75 5.0 5.25 Unit MAIN OUTPUT Output Voltage (Vin = 6.0 V to 26 V, IO = 5.0 mA to 500 mA, TJ = –40 to +125°C) Line Regulation Vin = 9.0 V to 16 V, IO = 5.0 mA Vin = 6.0 V to 26 V, IO = 5.0 mA Regline Load Regulation (IO = 5.0 mA to 500 mA) Regload V mV – – 4.0 10 25 50 – 10 50 – 200 – mV Output Impedance IO = 500 mAdc and 10 mArms, f = 100 Hz to 10 kHz ZO Output Noise Voltage (f = 10 Hz to 100 kHz) Vn – 100 – µVrms Long Term Stability S – 20 – mV/kHR RR – 66 – dB – – 0.45 0.82 0.6 – ISC 0.75 1.2 – A Vth(OV) 26 31 – V Output Sink Current (VOL = 1.2 V) ISink – 5.0 – mA Output Voltage (Ron/off = 20 kΩ) Low State, Vin = 4.0 V High State, Vin = 14 V VOL VOH – 4.5 0.9 5.0 1.2 6.0 Ron/off – 20 30 kΩ –VO – 0.6 0 – V Ripple Rejection (f = 120 Hz) Dropout Voltage IO = 500 mA IO = 750 mA mΩ VI–VO Short Circuit Current Limit Over–Voltage Shutdown Threshold V SWITCH/RESET V Output Pull–Up Resistor, “On”/“Off” (Note 2) Output Voltage with Reverse Polarity Input (Vin = –15 V, RL = 10 Ω) ELECTRICAL CHARACTERISTICS (Vin = 14 V, IO = 0 mA, Istby = 10 mA, CO = 10 µF, Cstby = 10 µF, TJ = 25°C [Note 1].) Characteristic Symbol Min Typ Max Unit Output Voltage (Vin = 6.0 V to 26 V, Istby = 1.0 mA to 10 mA, TJ = –40 to +125°C) VO(stby) 4.75 5.0 5.25 V VO–VO(stby) – 200 0 200 mV Line Regulation (Vin = 6.0 V to 26 V) Regline – 4.0 50 mV Load Regulation (Istby = 1.0 mA to 10 mA) Regload – 10 50 mV Output Impedance I(stby) = 10 mAdc and 1.0 mArms, f = 100 Hz to 10 kHz ZO(stby) – 1.0 – STANDBY OUTPUT Tracking Voltage Ω Output Noise Voltage (f = 10 Hz to 100 kHz) Vn – 300 – µVrms Long Term Stability S – 20 – mV/kHR RR – 66 – dB VI–VO(stby) – 0.55 0.7 V Short Circuit Current Limit ISC 25 70 – mA Output Voltage with Reverse Polarity Input Vin = –15 V, RL = 510 Ω –VO – 0.3 0 – – 5.0 6.0 – – – – 3.0 40 90 2.0 – 100 – 3.0 Ripple Rejection (f = 120 Hz) Dropout Voltage (Istby = 10 mA) Output Voltage with Maximum Positive Input Vin = 60 V, RL = 510 Ω V VO(max) V TOTAL DEVICE Bias Current IO = 10 mA, Istby = 0 mA IO = 500 mA, Istby = 0 mA IO = 750 mA, Istby = 0 mA Main Output “Off”, Istby = 10 mA IB mA NOTES: 1. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible. 2. The maximum switch/reset current must not exceed 5.0 mA. MOTOROLA ANALOG IC DEVICE DATA 3 LM2935 TYPICAL CIRCUIT WAVEFORMS 60 V S1, “On”/“Off” Switch 26 V 14 V Vin, Input Voltage (Pin 1) 14 V 14 V 3.0 V 9.0 V Open Open Closed 5.0 V 5.0 V 5.0 V 2.4 V VO, Main Output Voltage (Pin 2) 5.0 V 5.0 V 0V 5.0 V 0V Reset (Pin 4) Vstby, Standby Voltage (Pin 5) 5.0 V 5.0 V 2.4 V Main Output Turn “On” Low Input Voltage Input Voltage Line Noise Load Dump Main Output Turn “Off” Main Output Short Circuit Thermal Shutdown JUNCTION–TO–AIR (° C/W) R θ JA, THERMAL RESISTANCE 80 3.5 PD(max) for TA = 50°C 70 ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ Free Air Mounted Vertically 60 2.0 oz. Copper L Minimum Size Pad 50 L 40 RθJA 30 3.0 2.5 2.0 1.5 PD, MAXIMUM POWER DISSIPATION (W) Figure 1. D2PAK Thermal Resistance and Maximum Power Dissipation versus P.C.B. Copper Length 1.0 0 5.0 10 15 20 25 30 L, LENGTH OF COPPER (mm) 4 MOTOROLA ANALOG IC DEVICE DATA LM2935 OUTLINE DIMENSIONS TH SUFFIX PLASTIC PACKAGE CASE 314A–03 ISSUE D –T– –P– B NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION D DOES NOT INCLUDE INTERCONNECT BAR (DAMBAR) PROTRUSION. DIMENSION D INCLUDING PROTRUSION SHALL NOT EXCEED 0.043 (1.092) MAXIMUM. SEATING PLANE C Q E OPTIONAL CHAMFER A U F L K 1 2 3 4 5 G J 5 PL S D 5 PL 0.014 (0.356) M T P M DIM A B C D E F G J K L Q S U INCHES MIN MAX 0.572 0.613 0.390 0.415 0.170 0.180 0.025 0.038 0.048 0.055 0.570 0.585 0.067 BSC 0.015 0.025 0.730 0.745 0.320 0.365 0.140 0.153 0.210 0.260 0.468 0.505 MILLIMETERS MIN MAX 14.529 15.570 9.906 10.541 4.318 4.572 0.635 0.965 1.219 1.397 14.478 14.859 1.702 BSC 0.381 0.635 18.542 18.923 8.128 9.271 3.556 3.886 5.334 6.604 11.888 12.827 TV SUFFIX PLASTIC PACKAGE CASE 314B–05 ISSUE J Q OPTIONAL CHAMFER F E A U K NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION D DOES NOT INCLUDE INTERCONNECT BAR (DAMBAR) PROTRUSION. DIMENSION D INCLUDING PROTRUSION SHALL NOT EXCEED 0.043 (1.092) MAXIMUM. C B –P– S L W V 1 2 3 4 5 G 0.24 (0.610) J 5 PL M T H D 5 PL 0.10 (0.254) M T P M N –T– MOTOROLA ANALOG IC DEVICE DATA SEATING PLANE DIM A B C D E F G H J K L N Q S U V W INCHES MIN MAX 0.572 0.613 0.390 0.415 0.170 0.180 0.025 0.038 0.048 0.055 0.850 0.935 0.067 BSC 0.166 BSC 0.015 0.025 0.900 1.100 0.320 0.365 0.320 BSC 0.140 0.153 – 0.620 0.468 0.505 – 0.735 0.090 0.110 MILLIMETERS MIN MAX 14.529 15.570 9.906 10.541 4.318 4.572 0.635 0.965 1.219 1.397 21.590 23.749 1.702 BSC 4.216 BSC 0.381 0.635 22.860 27.940 8.128 9.271 8.128 BSC 3.556 3.886 – 15.748 11.888 12.827 – 18.669 2.286 2.794 5 LM2935 OUTLINE DIMENSIONS T SUFFIX PLASTIC PACKAGE CASE 314D–03 ISSUE D SEATING PLANE –T– NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION D DOES NOT INCLUDE INTERCONNECT BAR (DAMBAR) PROTRUSION. DIMENSION D INCLUDING PROTRUSION SHALL NOT EXCEED 10.92 (0.043) MAXIMUM. C –Q– B E U A DIM A B C D E G H J K L Q U S L 1 2 3 4 5 K S J H G D 5 PL 0.356 (0.014) T Q M INCHES MIN MAX 0.572 0.613 0.390 0.415 0.170 0.180 0.025 0.038 0.048 0.055 0.067 BSC 0.087 0.112 0.015 0.025 1.020 1.065 0.320 0.365 0.140 0.153 0.105 0.117 0.543 0.582 MILLIMETERS MIN MAX 14.529 15.570 9.906 10.541 4.318 4.572 0.635 0.965 1.219 1.397 1.702 BSC 2.210 2.845 0.381 0.635 25.908 27.051 8.128 9.271 3.556 3.886 2.667 2.972 13.792 14.783 M D2T SUFFIX PLASTIC PACKAGE CASE 936A–02 (D2PAK) ISSUE A OPTIONAL CHAMFER A TERMINAL 6 –T– U E S K V B H 1 2 3 4 5 M L P N D 0.010 (0.254) M R T G C 6 NOTES: 1 DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2 CONTROLLING DIMENSION: INCH. 3 TAB CONTOUR OPTIONAL WITHIN DIMENSIONS A AND K. 4 DIMENSIONS U AND V ESTABLISH A MINIMUM MOUNTING SURFACE FOR TERMINAL 6. 5 DIMENSIONS A AND B DO NOT INCLUDE MOLD FLASH OR GATE PROTRUSIONS. MOLD FLASH AND GATE PROTRUSIONS NOT TO EXCEED 0.025 (0.635) MAXIMUM. DIM A B C D E G H K L M N P R S U V INCHES MIN MAX 0.386 0.403 0.356 0.368 0.170 0.180 0.026 0.036 0.045 0.055 0.067 BSC 0.539 0.579 0.050 REF 0.000 0.010 0.088 0.102 0.018 0.026 0.058 0.078 5 _ REF 0.116 REF 0.200 MIN 0.250 MIN MILLIMETERS MIN MAX 9.804 10.236 9.042 9.347 4.318 4.572 0.660 0.914 1.143 1.397 1.702 BSC 13.691 14.707 1.270 REF 0.000 0.254 2.235 2.591 0.457 0.660 1.473 1.981 5 _ REF 2.946 REF 5.080 MIN 6.350 MIN MOTOROLA ANALOG IC DEVICE DATA LM2935 NOTES MOTOROLA ANALOG IC DEVICE DATA 7 LM2935 Motorola reserves the right to make changes without further notice to any products herein. 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Ltd.; Silicon Harbour Center, No. 2 Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong. 8 ◊ CODELINE TO BE PLACED HERE *LM2935/D* LM2935/D MOTOROLA ANALOG IC DEVICE DATA