Electronic Components Datasheet Search |
|
LM2578A Datasheet(PDF) 3 Page - National Semiconductor (TI) |
|
|
LM2578A Datasheet(HTML) 3 Page - National Semiconductor (TI) |
3 / 20 page Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Total Supply Voltage 50V Collector Output to Ground −0.3V to +50V Emitter Output to Ground (Note 2) −1V to +50V Power Dissipation (Note 3) Internally limited Output Current 750 mA Storage Temperature −65˚C to +150˚C Lead Temperature (soldering, 10 seconds) 260˚C Maximum Junction Temperature 150˚C ESD Tolerance (Note 4) 2 kV Operating Ratings Ambient Temperature Range LM2578A −40˚C ≤ T A ≤+85˚C LM3578A 0˚C ≤ T A ≤+70˚C Junction Temperature Range LM2578A −40˚C ≤ T J ≤+125˚C LM3578A 0˚C ≤ T J ≤+125˚C Electrical Characteristics These specifications apply for 2V ≤ V IN ≤ 40V (2.2V ≤ V IN ≤ 40V for T J ≤ −25˚C), timing capacitor C T = 3900 pF, and 25% ≤ duty cycle ≤ 75%, unless otherwise specified. Values in standard typeface are for T J = 25˚C; values in boldface type apply for operation over the specified operating junction temperature range. LM2578A/ Symbol Parameter Conditions Typical LM3578A Units (Note 5) Limit (Note 6) OSCILLATOR f OSC Frequency 20 kHz 24 kHz (max) 16 kHz (min) ∆f OSC/ ∆T Frequency Drift with Temperature −0.13 %/˚C Amplitude 550 mV p-p REFERENCE/COMPARATOR (Note 7) V R Input Reference I 1 =I2 = 0 mA and 1.0 V Voltage I 1 =I2 =1mA ±1% (Note 8) 1.050/1.070 V (max) 0.950/0.930 V (min) ∆V R/ ∆V IN Input Reference Voltage Line Regulation I 1 =I2 = 0 mA and 0.003 %/V I 1 =I2 =1mA ±1% (Note 8) 0.01/0.02 %/V (max) I INV Inverting Input Current I 1 =I2 = 0 mA, duty cycle = 25% 0.5 µA Level Shift Accuracy Level Shift Current=1mA 1.0 % 10/13 % (max) ∆V R/ ∆t Input Reference Voltage Long Term Stability 100 ppm/1000h OUTPUT V C (sat) Collector Saturation Voltage I C = 750 mA pulsed, Emitter grounded 0.7 V 0.90/1.2 V (max) V E (sat) Emitter Saturation Voltage I O = 80 mA pulsed, 1.4 V V IN =VC = 40V 1.7/2.0 V (max) I CES Collector Leakage Current V IN =VCE = 40V, Emitter grounded, Output OFF 0.1 µA 200/250 µA (max) BV CEO(SUS) Collector-Emitter Sustaining Voltage I SUST = 0.2A (pulsed), VIN = 0 60 V 50 V (min) CURRENT LIMIT V CL Sense Voltage Shutdown Level Referred to V IN or Ground 110 mV (Note 9) 80 mV (min) 160 mV (max) www.national.com 3 |
Similar Part No. - LM2578A |
|
Similar Description - LM2578A |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |