Datasheet LT3845A (Analog Devices) - 2
| Manufacturer | Analog Devices |
| Description | High Voltage Synchronous Current Mode Step-Down Controller with Adjustable Operating Frequency |
| Pages / Page | 26 / 2 — ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION. … |
| File Format / Size | PDF / 295 Kb |
| Document Language | English |
ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION. LEAD FREE FINISH. TAPE AND REEL. PART MARKING*
Model Line for this Datasheet
Text Version of Document
LT3845A
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
Input Supply Voltage (VIN) ..65V TOP VIEW Boosted Supply Voltage (BOOST) ...80V VIN 1 16 BOOST Switch Voltage (SW) (Note 8) ... 65V to –2V SHDN 2 15 TG Differential Boost Voltage CSS 3 14 SW (BOOST to SW) ...24V BURST_EN 4 13 VCC 17 Bias Supply Voltage (V VFB 5 12 BG CC) ...24V SENSE+ and SENSE– Voltages ..40V VC 6 11 PGND Differential Sense Voltage SYNC 7 10 SENSE+ fSET 8 9 SENSE– (SENSE+ to SENSE–) ..1V to –1V BURST_EN Voltage ...24V FE PACKAGE 16-LEAD PLASTIC TSSOP SYNC, V C, VFB, CSS, and SHDN Voltages ..5V TJMAX = 125°C, qJA = 40°C/W, qJC = 10°C/W SHDN Pin Currents ..1mA EXPOSED PAD (PIN 17) IS SGND, MUST BE SOLDERED TO PCB Operating Junction Temperature Range (Note 2) LT3845AE (Note 3) .. –40°C to 125°C LT3845AI .. –40°C to 125°C LT3845AMP ... –55°C to 125°C Storage Temperature.. –65°C to 150°C Lead Temperature (Soldering, 10 sec) ...300°C
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3845AEFE#PBF LT3845AEFE#TRPBF 3845AFE 16-Lead Plastic TSSOP –40°C to 125°C LT3845AIFE#PBF LT3845AIFE#TRPBF 3845AFE 16-Lead Plastic TSSOP –40°C to 125°C LT3845AMPFE#PBF LT3845AMPFE#TRPBF 3845AFE 16-Lead Plastic TSSOP –55°C to 125°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/ 3845afa 2 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
Input Supply Voltage (VIN) ..65V TOP VIEW Boosted Supply Voltage (BOOST) ...80V VIN 1 16 BOOST Switch Voltage (SW) (Note 8) ... 65V to –2V SHDN 2 15 TG Differential Boost Voltage CSS 3 14 SW (BOOST to SW) ...24V BURST_EN 4 13 VCC 17 Bias Supply Voltage (V VFB 5 12 BG CC) ...24V SENSE+ and SENSE– Voltages ..40V VC 6 11 PGND Differential Sense Voltage SYNC 7 10 SENSE+ fSET 8 9 SENSE– (SENSE+ to SENSE–) ..1V to –1V BURST_EN Voltage ...24V FE PACKAGE 16-LEAD PLASTIC TSSOP SYNC, V C, VFB, CSS, and SHDN Voltages ..5V TJMAX = 125°C, qJA = 40°C/W, qJC = 10°C/W SHDN Pin Currents ..1mA EXPOSED PAD (PIN 17) IS SGND, MUST BE SOLDERED TO PCB Operating Junction Temperature Range (Note 2) LT3845AE (Note 3) .. –40°C to 125°C LT3845AI .. –40°C to 125°C LT3845AMP ... –55°C to 125°C Storage Temperature.. –65°C to 150°C Lead Temperature (Soldering, 10 sec) ...300°C
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3845AEFE#PBF LT3845AEFE#TRPBF 3845AFE 16-Lead Plastic TSSOP –40°C to 125°C LT3845AIFE#PBF LT3845AIFE#TRPBF 3845AFE 16-Lead Plastic TSSOP –40°C to 125°C LT3845AMPFE#PBF LT3845AMPFE#TRPBF 3845AFE 16-Lead Plastic TSSOP –55°C to 125°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/ 3845afa 2 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
