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| 7805A Description 3- Terminal Positive Voltage Regulators 7805AJ Pin Assignment Tab 3-Lead Plastic TO-252 Package Code: J Pin 1: VIN Pin 2 & Tab: GND Pin 3: VOUT The 7805A can provide local on-card regulation, eliminating the distribution problems associated with single point regulation. Each employs internal current limiting, thermal shut-down and safe operating area protection, making it essen-tially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. 1 2 3 7805AE Pin Assignment Tab 3-Lead Plastic TO-220AB Package Code: E Pin 1: VIN Pin 2 & Tab: GND Pin 3: VOUT 3 Features * Output Current In Excess of 1A * Output Voltage of 5V * Internal Short-Circuit Current Limiting & Thermal Overload Protection * Guaranteed In Extended Temperature Range Absolute Maximum Ratings (TA=25C) 1 2 Characteristic Input Voltage Power Dissipation Operating Temperature Storage Temperature Junction Temperature o Symbol VIN PD Topr Tstg Tj Rating 40 Internally limited (Note) -30 to 85 -55 to 150 150 Unit V o o o C C C Note: (1)TA=25 C, , TO-252: 1W, TO-220AB: 2.7W o (2)TC=25 C, All package: 10W Thermal Data Characteristic Thermal Resistance Junction-Case Thermal Resistance Junction-Ambient Symbol Rth(j-c) Rth(j-a) TO-252 12.5 125 TO-220AB 12.5 47 Unit o o C/W C/W Schematic Diagram & Equivalent Circuit Schematic Diagram Input 1 Equivalent Circuit Series Pass Element Output 3 VIN Current Generator SOA Protection Starting Circuit Reference Voltage Error Amplifier Thermal Protection GND 2 VOUT 1 7805A 3- Terminal Positive Voltage Regulators 7805A Series Electrical Characteristics VIN=10V, IOUT=500mA, CIN=0.33uF, COUT=0.1uF, 0CTJ125C (unless otherwise specified) Symbol Parameter Conditions TJ=25C, IOUT=500mA VO Output Voltage 5mAIOUT1A 7VVIN25V, POUT15W VO VO IB IB eN RR VD RO ISC VO/T Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Output Voltage Drift TJ=25C, 7VVIN25V TJ=25C, 8VVIN12V TJ=25C, 5mAIOUT1A TJ=25C, 250mAIOUT750mA IOUT=5mA, TJ=25C IOUT=500mA, 7VVIN25V, TJ=25 C 5mAIOUT1A, VIN=10V, TJ=25 C B=10Hz~100KHz, IOUT=50mA, TJ=25C 10VVIN18V, f=120Hz, IOUT=50mA, TJ=25 C TJ=25C, IOUT=1A f=1KHz TJ=25C 0 CTJ125 C o o o o o 7805AJ/AE Min 4.85 4.85 57 Typ 5 5 3 1 15 5 3.9 50 73 2 17 2.3 Max 5.15 5.15 50 25 100 50 8 1.3 0.5 2.5 2.8 0.6 Units V mV mV mA mA uV/VO dB V m A mV/C 2 7805A Test Circuits 3- Terminal Positive Voltage Regulators VIN 1 7805A 2 3 VOUT VIN CIN 1 7805A 2 3 270pF VOUT VIN -+ 1 7805A 2 3 VOUT 0.33uF CIN COUT 0.33uF RL 0.1uF 100 VOUT 0V + - DC 9V RL DC Parameter Load Regulation Ripple Rejection Application Circuits Constant Current Regulator Circuit for Increasing Output Voltage VIN 1 7805A 2 3 VOUT VIN 1 7805A IB 2 3 VOUT 0.33uF R1 IR1 0.1uF 10uF 0.33uF R1 R2 0.1uF 10uF VOUT=VOUT(IC)+VZ I1=VOUT(IC)/R1 VOUT=VOUT(IC)(1+R2/R1)+R2*IB High Output Current with Short-circuit Protection VIN R1 Q2 Rsc Q1 1 3 VOUT 7805A 2 0.33uF 0.1uF 10uF R1VBE1/IB(max) RSC=VBE2/ISC, ISC: Short-Circuit Current 3 7805A Characteristics Curve Ripple Rejection 70 60 3- Terminal Positive Voltage Regulators Current Cut-off Grid Voltage Vout Ripple Rejection (dB). . 40 30 20 10 0 10 100 1000 10000 100000 1000000 Vin=(4.5+Vout(ic))VDC+3.5Vrms Iout=50mA Tj=25oC Output Voltage (V) 50 Vin=Vout(ic)+5V o Tj=25 C 0 0.5 1 1.5 2 2.5 3 Frequency (Hz) Output Current (A) Worst Case Power Dissipation 2500 Output Voltage as a Function of Junction Temperature Vin=Vout(ic)+5V Iout=5mA 2000 Output Current (mA) 1500 1000 With 72oC/W Heat Sink Heat Sink Size: 50*50*2 mm 500 Free Air 0 0 5 10 15 20 25 30 35 Output Voltage (V) 0 50 100 Differential (V) Vinput-Voutput Voltage(V) Junction Temperature ( C) o 150 200 Load Transient Response 3 2.5 1.0 0.5 0 Load Current (A) Voltage Range Vout Output Voltage Deviion (V). . 2 1.5 1 0.5 0 -0.5 -1 0 5 10 15 20 25 30 35 40 45 50 Vin=Vout(ic)+5V Tj=25oC Voutput (V) Iout=50mA 0 5 10 15 20 25 30 35 Time (us) Vinput-Voutput (V) 4 7805A TO-252 Dimension A C 3- Terminal Positive Voltage Regulators Marking: B L F G D 3 H E K 2 I 1 J Note: Green label is used for pb-free packing Pin Style: 1.Input 2.Ground 3.Output Material: * Lead solder plating: Sn60/Pb40 (Normal), Sn/3.0Ag/0.5Cu or Pure-Tin (Pb-free) * Mold Compound: Epoxy resin family, flammability solid burning class: UL94V-0 DIM A B C D E F G H I J K L Min. 0.45 1.70 0.90 0.45 6.40 5.40 2.20 0.70 5.20 1.40 Max. 0.55 1.90 1.50 0.60 6.80 5.80 2.80 *2.30 0.90 0.90 5.50 1.60 *: Typical, Unit: mm 3-Lead TO-252 Plastic Surface Mount Package Package Code: J Now all products are Pb-Free Packaged TO-220AB Dimension Marking: A D B E F C H I G Tab P L J M 3 2 1 O N K Note: Green label is used for pb-free packing Pin Style: 1.Input 2.Ground 3.Output Material: * Lead solder plating: Sn60/Pb40 (Normal), Sn/3.0Ag/0.5Cu or Pure-Tin (Pb-free) * Mold Compound: Epoxy resin family, flammability solid burning class: UL94V-0 DIM A B C D E F G H I J K L M N O P Min. 5.58 8.38 4.40 1.15 0.35 2.03 9.66 3.00 0.75 2.54 1.14 12.70 14.48 Max. 7.49 8.90 4.70 1.39 0.60 2.92 10.28 *16.25 *3.83 4.00 0.95 3.42 1.40 *2.54 14.27 15.87 *: Typical, Unit: mm 3-Lead TO-220AB Plastic Package Package Code: E Now all products are Pb-Free Packaged Ordering Information Part Number 7805AJ 7805AE VOUT: 5V0.15V 5V0.15V Package TO-252 TO-220AB 5 7805A 3- Terminal Positive Voltage Regulators Soldering Methods for Orister's Products 1. Storage environment: Temperature=10oC~35oC Humidity=65%15% 2. Reflow soldering of surface-mount devices Figure 1: Temperature profile tP TP Ramp-up TL Tsmax Temperature tL Critical Zone TL to TP Tsmin tS Preheat Ramp-down 25 t 25oC to Peak Time Profile Feature Average ramp-up rate (TL to TP) Preheat - Temperature Min (Tsmin) - Temperature Max (Tsmax) - Time (min to max) (ts) Tsmax to TL - Ramp-up Rate Time maintained above: - Temperature (TL) - Time (tL) Peak Temperature (TP) Time within 5oC of actual Peak Temperature (tP) Ramp-down Rate Time 25oC to Peak Temperature 3. Flow (wave) soldering (solder dipping) Products Pb devices. Pb-Free devices. Sn-Pb Eutectic Assembly <3 C/sec 100oC 150oC 60~120 sec <3oC/sec 183oC 60~150 sec 240 C +0/-5 C 10~30 sec <6oC/sec <6 minutes o o o Pb-Free Assembly <3oC/sec 150oC 200oC 60~180 sec <3oC/sec 217oC 60~150 sec 260oC +0/-5oC 20~40 sec <6oC/sec <8 minutes Peak temperature 245oC 5oC 260 C +0/-5 C o o Dipping time 5sec 1sec 5sec 1sec 6 |
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