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SG1844J/DESC Datasheet(PDF) 2 Page - Microsemi Corporation |
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SG1844J/DESC Datasheet(HTML) 2 Page - Microsemi Corporation |
2 / 12 page C URRENT -M ODE PWM C ONTROLLER SG1844/SG1845 Series PRODUCT DA T ABOOK 1996/1997 Copyright © 2000 Rev. 1.6c 2 P RODUCTION D ATA S HEET ABSOLUTE MAXIMUM RATINGS (Notes 1 & 2) Supply Voltage (I CC < 30mA) ............................................................... Self Limiting Supply Voltage (Low Impedance Source) ........................................................ 30V Output Current (Peak) ....................................................................................... ±1A Output Current (Continuous) ....................................................................... 350mA Output Energy (Capacitive Load) ....................................................................... 5µJ Analog Inputs (VFB, ISENSE) ................................................................ -0.3V to +6.3V Error Amp Output Sink Current ..................................................................... 10mA Operating Junction Temperature Hermetic (J, Y, F, L Packages) ................................................................... 150°C Plastic (N, M, D, DM Packages) ................................................................ 150°C Storage Temperature Range .......................................................... -65°C to +150°C Lead Temperature (Soldering, 10 Seconds) .................................................. 300°C PACKAGE PIN OUTS V REF V CC OUT UT GND COM V FB I SENSE R T/CT 1 8 27 36 45 M & Y PACKAGE (Top View) DM PACKAGE (Top View) V REF V CC OUT UT GND COM V FB I SENSE R T/CT 1 8 27 36 45 V REF N.C. V CC V C OUT UT GND WR GND COM N.C. V FB N.C. I SENSE N.C. R T/CT 1 14 213 312 411 510 69 78 D PACKAGE (Top View) M PACKAGE: THERMAL RESISTANCE-JUNCTION TO AMBIENT, θθθθθ JA 95°C/W N PACKAGE: THERMAL RESISTANCE-JUNCTION TO AMBIENT, θθθθθ JA 65°C/W DM PACKAGE: THERMAL RESISTANCE-JUNCTION TO AMBIENT, θθθθθ JA 165°C/W D PACKAGE: THERMAL RESISTANCE-JUNCTION TO AMBIENT, θθθθθ JA 120°C/W Y PACKAGE: THERMAL RESISTANCE-JUNCTION TO AMBIENT, θθθθθ JA 130°C/W J PACKAGE: THERMAL RESISTANCE-JUNCTION TO AMBIENT, θθθθθ JA 80°C/W F PACKAGE: THERMAL RESISTANCE-JUNCTION TO CASE, θθθθθ JC 80°C/W THERMAL RESISTANCE-JUNCTION TO AMBIENT, θθθθθ JA 145°C/W L PACKAGE: THERMAL RESISTANCE-JUNCTION TO CASE, θθθθθ JC 35°C/W THERMAL RESISTANCE-JUNCTION TO AMBIENT, θθθθθ JA 120°C/W Junction Temperature Calculation: T J = TA + (PD x θJA). The θ JA numbers are guidelines for the thermal performance of the device/pc-board system. All of the above assume no ambient airflow. THERMAL DATA Note 1. Exceeding these ratings could cause damage to the device. Note 2. All voltages are with respect to Pin 5. All currents are positive into the specified terminal. 1 14 213 312 411 510 69 78 J & N PACKAGE (Top View) COM N.C. V FB N.C. I SENSE N.C. R T/CT V REF N.C. V CC V C OUT UT GROUND OWER GND F PACKAGE (Top View) 10.V REF 9. V CC 8. V C 7. OUT UT 6. GND 1. COM 2. V FB 3. I SENSE 4. R T/CT 5. OWER GND 1 10 29 38 47 56 L PACKAGE (Top View) 32 4 5 6 7 8 911 10 1. N.C. 2. N.C. 3. COM . 4. N.C. 5. V FB 6. N.C. 7. I SENSE 8. R T/CT 9. N.C. 10. N.C. 120 19 18 17 16 15 14 12 13 11. N.C. 12. WR GND 13. GND 14. N.C. 15. OUT UT 16. N.C. 17. V C 18. V CC 19. N.C. 20. V REF RoHS / Pb-free Peak Package Solder Reflow Temp. (40 second max. exposure)............................... 260°C (+0, -5) RoHS / Pb-free 100% Matte Tin Lead Finish RoHS / Pb-free 100% Matte Tin Lead Finish M Package: RoHS / Pb-free 100% Matte Tin Lead Finish N Package: RoHS / Pb-free 100% Matte Tin Lead Finish |
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