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LTC1439CG 数据表(PDF) 2 Page - Linear Technology |
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LTC1439CG 数据表(HTML) 2 Page - Linear Technology |
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2 / 32 page  2 LTC1438/LTC1439 ABSOLUTE MAXIMUM RATINGS Input Supply Voltage (VIN)....................... 36V to –0.3V Topside Driver Voltage (BOOST 1, 2) ...... 42V to – 0.3V Switch Voltage (SW1, 2) ...................... VIN + 5V to – 5V EXTVCC Voltage....................................... 10V to –0.3V POR2, LBO Voltages ............................... 12V to – 0.3V AUXFB Voltage ....................................... 20V to – 0.3V AUXDR Voltage ....................................... 28V to – 0.3V SENSE+ 1, SENSE+ 2, SENSE– 1, SENSE– 2, VOSENSE2 Voltages ................... INTVCC + 0.3V to –0.3V VPROG1, VPROG2 Voltages ................... INTVCC to –0.3V PLL LPF, ITH1, ITH2 Voltages .................. 2.7V to –0.3V AUXON, PLLIN, SFB1, RUN/SS1, RUN/SS2, LBI Voltages ......... 10V to – 0.3V Peak Output Current < 10 µs (TGL1, 2, BG1, 2)......... 2A Peak Output Current < 10 µs (TGS1, 2) .............. 250mA INTVCC Output Current ....................................... 50mA Operating Ambient Temperature Range Commercial ........................................... 0 °C to 70°C Industrial .......................................... – 40 °C to 85°C Junction Temperature (Note 1) ............................ 125 °C Storage Temperature Range ................ – 65 °C to 150°C Lead Temperature (Soldering, 10 sec) ................. 300 °C ORDER PART NUMBER LTC1439CG LTC1439IG LTC1439CGW LTC1439IGW ORDER PART NUMBER Consult factory for Military grade parts. PACKAGE/ORDER INFORMATION LTC1438CG LTC1438CG-ADJ LTC1438IG LTC1438IG-ADJ LTC1438XCG TJMAX = 125°C, θJA = 95°C/ W 1 2 3 4 5 6 7 8 9 10 11 12 13 14 TOP VIEW G PACKAGE 28-LEAD PLASTIC SSOP 28 27 26 25 24 23 22 21 20 19 18 17 16 15 SENSE+ 1 SENSE– 1 VPROG1* ITH1 POR2** COSC SGND LBI LBO SFB1 ITH2 VOSENSE2 SENSE– 2 SENSE+ 2 RUN/SS1 BOOST 1 TGL1 SW1 VIN BG1 INTVCC PGND BG2 EXTVCC SW2 TGL2 BOOST 2 RUN/SS2 VOSENSE1 ON LTC1438-ADJ NC ON THE LTC1438XCG * ** 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 TOP VIEW GW PACKAGE 36-LEAD PLASTIC SSOP G PACKAGE 36-LEAD PLASTIC SSOP 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 RUN/SS1 SENSE+ 1 SENSE– 1 VPROG1 ITH1 POR2 COSC SGND LBI LBO SFB1 ITH2 VPROG2 VOSENSE2 SENSE– 2 SENSE+ 2 RUN/SS2 AUXDR PLL LPF PLLIN BOOST 1 TGL1 SW1 TGS1 VIN BG1 INTVCC PGND BG2 EXTVCC TGS2 SW2 TGL2 BOOST 2 AUXON AUXFB TJMAX = 125°C, θJA = 95°C/ W (G) TJMAX = 125°C, θJA = 85°C/ W (GW) |
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