|Title||IC REG FLYBCK INV ISO 3.6A 8SOIC|
LTC’s LT8302 is a monolithic micropower isolated flyback converter that operates from an input voltage range of 2.8 V to 42 V and delivers up to 18 W of isolated output power. By sampling the isolated output voltage directly from the primary-side flyback waveform, the part requires no third winding or opto-isolator for regulation. The output voltage is programmed with two external resistors and a third optional temperature compensation resistor. Boundary mode operation provides a small magnetic solution with excellent load regulation. Low ripple Burst Mode operation maintains high efficiency at light load while minimizing the output voltage ripple. The high level of integration and the use of boundary and low ripple burst modes result in a simple to use, low component count, and high efficiency application solution for isolated power delivery. The converter comes in an 8-SOIC-EP packages with temperature range up to -55°C to +150°C. The LT8302 is perfect for isolated power supplies found in automotive, industrial, and medical applications.
|Company||Linear Technology Corporation|
|Datasheet||Download LT8302IS8EPBF datasheet
|Others parts numbering|
|DC2014A: BOARD EVAL FOR LT8302ES8E|
|LT8302 42VIN Micropower No-Opto Isolated Flyback Converter with 65V/3.6A Switch Features
to 42V Input Voltage Range n3.6A, 65V Internal DMOS Power Switch n Low Quiescent Current: 106µA in Sleep Mode 380µA in Active Mode n Quasi-Resonant Boundary Mode Operation at Heavy Load n Low Ripple Burst Mode® Operation at Light Load n Minimum Load < 0.5% (Typ) of Full Output n No Transformer Third Winding or Opto-Isolator Required for Output Voltage Regulation n Accurate EN/UVLO Threshold and Hysteresis n Internal Compensation and Soft-Start n Temperature Compensation for Output Diode n Output Short-Circuit Protection n Thermally Enhanced 8-Lead SO PackageDescription
The is a monolithic micropower isolated flyback converter. By sampling the isolated output voltage directly from the primary-side flyback waveform, the part requires no third winding or opto-isolator for regulation. The output voltage is programmed with two external resistors and a third optional temperature compensation resistor. Boundary mode operation provides a small magnetic solution with excellent load regulation. Low ripple Burst Mode operation maintains high efficiency at light load while minimizing the output voltage ripple. 3.6A, 65V DMOS power switch is integrated along with all the high voltage circuitry and control logic into a thermally enhanced 8-lead SO package. The LT8302 operates from an input voltage range to 42V and delivers 18W of isolated output power. The high level of integration and the use of boundary and low ripple burst modes result in a simple to use, low component count, and high efficiency application solution for isolated power delivery.
L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 7463497, 7471522.Applications
Isolated Automotive, Industrial, Medical Power Supplies n Isolated Auxiliary/Housekeeping Power Supplies
SW (Note 2)...............................................................65V VIN.............................................................................42V EN/UVLO.....................................................................VIN RFB.........................................................VIN 0.5V to VIN Current Into RFB.....................................................200µA INTVCC, RREF, TC..........................................................4V Operating Junction Temperature Range (Notes to 150°C Storage Temperature Range................... to 150°C Lead Temperature (Soldering, 10 sec).................... 300°CS8E PACKAGE 8-LEAD PLASTIC = 33°C/W EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
PART MARKING* PACKAGE DESCRIPTION 8-Lead Plastic SO 8-Lead Plastic SO 8-Lead Plastic SO 8-Lead Plastic SO TEMPERATURE RANGE to 150°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. 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/. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are = 25°C. VIN = 5V, VEN/UVLO = VIN, CINTVCC 1µF to GND, unless otherwise noted.
SYMBOL VIN IQ PARAMETER VIN Voltage Range VIN Quiescent Current VEN/UVLO = 0.2V VEN/UVLO = 1.1V Sleep Mode (Switch Off) Active Mode (Switch On) For Lowest Off IQ Falling VEN/UVLO = 0.3V VEN/UVLO = 1.1V VEN/UVLO = 1.3V IINTVCC to 10mA VINTVCC = 2.8V Falling IRFB to 125µA
EN/UVLO Shutdown Threshold EN/UVLO Enable Threshold EN/UVLO Enable Hysteresis IHYS VINTVCC IINTVCC EN/UVLO Hysteresis Current
INTVCC Regulation Voltage INTVCC Current Limit INTVCC UVLO Threshold INTVCC UVLO Hysteresis (RFB VIN) Voltage RREF Regulation Voltage RREF Regulation Voltage Line RegulationVTC ITC fMIN tON(MIN) tOFF(MAX) ISW(MAX) ISW(MIN) RDS(ON) ILKG tSS
TC Pin Voltage TC Pin Current Minimum Switching Frequency Minimum Switch-On Time Maximum Switch-Off Time Maximum Switch Current Limit Minimum Switch Current Limit Switch On-Resistance Switch Leakage Current Soft-Start Timer ISW = 1.5A VSW = 65V Backup Timer 3.6 0.70
Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The SW pin is rated to 65V for transients. Depending on the leakage inductance voltage spike, operating waveforms of the SW pin should be derated to keep the flyback voltage spike below 65V as shown in Figure 5. Note 3: The LT8302E is guaranteed to meet performance specifications from to 125°C junction temperature. Specifications over the to 125°C operating junction temperature range are assured by design, characterization and correlation with statistical process controls. The
LT8302I is guaranteed over the full to 125°C operating junction temperature range. The LT8302H is guaranteed over the full to 150°C operating junction temperature range. The LT8302MP is guaranteed over the full to 150°C operating junction temperature range. High junction temperatures degrade operating lifetimes. Operating lifetime is derated at junction temperature greater than 125°C. Note 4: The LT8302 includes overtemperature protection that is intended to protect the device during momentary overload conditions. Junction temperature will exceed 150°C when overtemperature protection is active. Continuous operation above the specified maximum operating junction temperature may impair device reliability.
|Some Part number from the same manufacture Linear Technology Corporation|
LTC’s LT8302 is a monolithic micropower isolated flyback converter that operates from an input voltage range of 2.8 V to 42 V and delivers up to 18 W of isolated output power. By sampling the isolated
LT1641 : LT1641, 10V to 80V, SO-8, Active Current Limiting, Auto Retry Mode
LTC1642A : Hot Swap Controller The LTC®1642A is a 16-pin Hot Swap™ controller that allows a board to be safely inserted and removed from a live backplane. Using an external N-Channel pass transistor, the board supply voltage can be ramped up at an adjustable rate. A high side switch driver controls the N-Ch
LT3472EDD : Boost and Inverting Dc/dc Converter for CCD Bias
LTC2240IUP-12 : 12-bit, 250msps ADC
LTC2642CMS-12#PBF : Data Acquisition - Digital To Analog Converter (dac) Integrated Circuit (ics) Tube Single Supply; IC DAC 12BIT VOUT 10-MSOP Specifications: Data Interface: Serial ; Number of Bits: 12 ; Operating Temperature: 0°C ~ 70°C ; Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) ; Packaging: Tube ; Voltage Supply Source: Single Supply ; Settling Time: 1µs ; Lead Free Status: Lead Free ; RoHS Status: RoHS Compliant
LTC1650CS#TR : Data Acquisition - Digital To Analog Converter (dac) Integrated Circuit (ics) Tape & Reel (TR) Dual ±; IC DAC 16BIT R-R VOLT OUT 16SOIC Specifications: Data Interface: Serial ; Number of Bits: 16 ; Operating Temperature: 0°C ~ 70°C ; Package / Case: 16-SOIC (0.154", 3.90mm Width) ; Packaging: Tape & Reel (TR) ; Voltage Supply Source: Dual ± ; Settling Time: 4µs ; Lead Free Status: Contains Lead ; RoHS Status: RoHS Non-Compliant
LTC2756AIG#PBF : Serial 18-Bit SoftSpan IOUT DAC The LTCÂ®2756 is an 18-bit multiplying serial-input, current- output digital-to-analog converter. LTC2756A provides full 18-bit performanceâEUR"INL and DNL of Â±1LSB maximumâEUR" over temperature without any adjustments. 18-bit monotonicity is guaranteed in all perfo
LTC6256CMS#TRPBF : Linear - Amplifier - Instrumentation, Op Amps, Buffer Amp Integrated Circuit (ics) General Purpose Tape & Reel (TR) 65µA 1.8 V ~ 5.25 V, ±0.9 V ~ 2.625 V; IC OPAMP DUAL 6.5MHZ 10-MSOP Specifications: Packaging: Tape & Reel (TR) ; Amplifier Type: General Purpose ; Number of Circuits: 2 ; Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) ; Slew Rate: 1.8 V/µs ; Gain Bandwidth Product: 6.5MHz ; Current - Supply: 65µA ; Current - Output / Channel: 35mA ; Voltage - Supply,
LTC2864HDD-2#PBF : Interface - Drivers, Receivers, Transceiver Integrated Circuit (ics) Transceiver Tube 3 V ~ 5.5 V; IC TRANSCEIVER RS485 10-DFN Specifications: Number of Drivers/Receivers: 1/1 ; Type: Transceiver ; Voltage - Supply: 3 V ~ 5.5 V ; Package / Case: 10-WFDFN Exposed Pad ; Packaging: Tube ; Protocol: RS422, RS485 ; Lead Free Status: Lead Free ; RoHS Status: RoHS Compliant
LT1236CCS8-10#PBF : Precision, Low Noise, Low Profile Hermetic Voltage Reference The LT®1236LS8 is a precision reference that combines low drift and noise with excellent long-term stability and high output accuracy. The reference output will both source and sink up to 10mA and remains very constant with input voltage
LTC3772ETS8 : 1 A SWITCHING CONTROLLER, 650 kHz SWITCHING FREQ-MAX, PDSO8 Specifications: Configuration / Function: SINGLE ; Package Type: Other, 3 X 2 MM, PLASTIC, MO-229-WECD, DFN-8 ; Life Cycle Stage: ACTIVE ; IOUT: 1 amps ; VIN: 4.2 volts ; fsw: 650 kHz ; Operating Temperature: 0 to 70 C (32 to 158 F)
LTC6910-3ITS8 : INSTRUMENTATION AMPLIFIER, 15000 uV OFFSET-MAX, PDSO8 Specifications: Closed-Loop Gain (AVCL): 2 V/V ; Slew Rate: 16 V/Âµs ; Supply Voltage (VS): 5 volts ; Operating Temperature: 0 to 70 C (32 to 158 F) ; RoHS Compliant: RoHS ; Package Type: SOT23, PLASTIC, MO-193, TSOT-23, 8 PIN