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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LT1171 датащи(PDF) 2 Page - Linear Technology |
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LT1171 датащи(HTML) 2 Page - Linear Technology |
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2 / 24 page  LT1170/LT1171/LT1172 2 117012fg ABSOLUTE MAXIMUM RATINGS Supply Voltage LT1170/LT1171/LT1172HV (Note 2).......................60V LT1170/LT1171/LT1172 (Note 2)............................40V Switch Output Voltage LT1170/LT1171/LT1172HV.....................................75V LT1170/LT1171/LT1172 .........................................65V LT1172S8..............................................................60V Feedback Pin Voltage (Transient, 1ms) ................... ±15V Storage Temperature Range .................. –65°C to 150°C Lead Temperature (Soldering, 10 sec.................... 300°C (Note 1) PIN CONFIGURATION Operating Junction Temperature Range LT1170M/LT1171M (OBSOLETE) ....... –55°C to 150°C LT1172M ............................................ –55°C to 125°C LT1170/LT1171/LT1172HVC, LT1170/LT1171/LT1172C (Oper.)............. 0°C to 100°C LT1170/LT1171/LT1172HVC LT1170/LT1171/LT1172C (Sh. Ckt.) ........ 0°C to 125°C LT1170/LT1171/LT1172HVI, LT1170/LT1171/LT1172I (Oper.).......... –40°C to 100°C LT1170/LT1171/LT1172HVI, LT1170/LT1171/LT1172I (Sh. Ckt.)...... –40°C to 125°C 1 2 3 4 8 7 6 5 TOP VIEW GND VC FB NC* E2 VSW E1 VIN J8 PACKAGE 8-LEAD CERDIP TJMAX = 125°C, θJA = 100°C/W * Do not connect Pin 4 of the LT1172 DIP or SO to external circuitry. This pin may be active in future revisions. 2 4 1 3 VSW VC FB CASE IS GND VIN K PACKAGE 4-LEAD TO-3 METAL CAN BOTTOM VIEW LT1170MK: TJMAX = 150°C, θJC = 2°C/W, θJA = 35°C/W LT1170CK: TJMAX = 100°C, θJC = 2°C/W, θJA = 35°C/W LT1171MK: TJMAX = 150°C, θJC = 4°C/W, θJA = 35°C/W LT1171CK: TJMAX = 100°C, θJC = 4°C/W, θJA = 35°C/W LT1172MK: TJMAX = 150°C, θJC = 8°C/W, θJA = 35°C/W LT1172CK: TJMAX = 100°C, θJC = 8°C/W, θJA = 35°C/W Based on continuous operation. TJMAX = 125°C for intermittent fault conditions. OBSOLETE N8 PACKAGE 8-LEAD PDIP 1 2 3 4 8 7 6 5 TOP VIEW GND VC FB NC* E2 VSW E1 VIN S8 PACKAGE 8-LEAD PLASTIC SO TJMAX = 100°C, θJA = 100°C/W (N) TJMAX = 100°C, θJA = 120°C/W to 150°C/W depending on board layout (S) * Do not connect Pin 4 of the LT1172 DIP or SO to external circuitry. This pin may be active in future revisions. Q PACKAGE 5-LEAD DD VIN VSW GND FB VC FRONT VIEW 5 4 3 2 1 TJMAX = 100°C, θJA = *°C/W * θ will vary from approximately 25°C/W with 2.8 sq. in. of 1oz. copper to 45°C/W with 0.20 sq. in. of 1oz. copper. Somewhat lower values can be obtained with additional copper layers in multilayer boards. TOP VIEW SW PACKAGE 16-LEAD PLASTIC SO WIDE 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 NC NC GND VC FB NC NC NC NC NC E2 VSW E1 VIN NC NC TJMAX = 100°C, θJA = 150°C/W Based on continuous operation. TJMAX = 125°C for intermittent fault conditions. T PACKAGE 5-LEAD PLASTIC TO-220 VIN VSW GND FB VC FRONT VIEW 5 4 3 2 1 LT1170CT/LT1170HVCT: TJMAX =100°C, θJC = 2°C/W, θJA = 75°C/W LT1171CT/LT1171HVCT: TJMAX =100°C, θJC = 4°C/W, θJA = 75°C/W LT1172CT/LT1172HVCT: TJMAX =100°C, θJC = 8°C/W, θJA = 75°C/W Based on continuous operation. TJMAX = 125°C for intermittent fault conditions. |
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