IC manufacturers Analog Devices
IC manufacturers (103)
- All manufacturers
Analog Devices
Infineon Technologies
Microchip
Onsemi
Renesas
ROHM
STMicroelectronics
Texas Instruments
- 3peak incorporated (28)
- Ablic (23)
- Acco Semiconductor (1)
- Advanced Power (4)
- Allegro Microsystems (100)
- Alpha & Omega Semiconductor (37)
- AnalogySemi (3)
- AnDAPT Inc (204)
- Anpec (13)
- AXElite (2)
- Backward (6)
- Bright Power Semiconductor (1)
- Broadcom (46)
- Cambridge GaN Devices (18)
- Chipanalog Micro (10)
- Cologne Chips (1)
- Convenient Power (1)
- Dialog Semiconductor (12)
- Diodes Incorporated (259)
- Divimath (8)
- Elmos AG (1)
- EPC (136)
- e-Peas Semiconductors (1)
- Eta Solutions Co. Ltd. (9)
- GaN Systems (8)
- GaNPower (3)
- Giantec (1)
- Gstek Wuxi (1)
- Helix Semiconductor (7)
- IKON (1)
- Indie Semiconductor (8)
- Innovision Semiconductor Inc (2)
- Intel (68)
- Inventchip Technology (3)
- ISSI (51)
- JoulWatt (20)
- KDPOF (3)
- Kinetic Technology (8)
- Lattice semiconductor Corporation (38)
- Littelfuse (1)
- Lumissil Microsystems (8)
- M3 Technology (M3Tek) (7)
- Macnica (22)
- Marvell Semiconductor (1)
- MaxLinear (181)
- Menlo Micro (1)
- MikroE (25)
- MindCet (2)
- Monolithic Power Systems (980)
- Navitas Semiconductor Inc (6)
- NewEdge Technologies, Inc. (1)
- Nexperia (266)
- Nisshinbo Micro Device Inc. (10)
- Novosense Micro (1)
- NXP (333)
- O2 Micro International Ltd (10)
- On Bright (7)
- Panasonic (2)
- PN Junction Semiconductor (2)
- Power Integrations (117)
- Powermat (1)
- Pulsiv (19)
- Qorvo (96)
- Realsil SuRealsil(tek) Microelectronics (1)
- Richtek (297)
- Sanken Electric Co., Ltd. (16)
- Sckipio (6)
- Semtech (86)
- SG-Micro (54)
- SiFive (2)
- Silanna Semiconductor (9)
- Silergy Corporation (33)
- Silicon Laboratory Inc. (108)
- Silicontent Technology (59)
- Silvertel (59)
- Skycore Semiconductors (1)
- Skyworks (33)
- Southchip (14)
- Summit Wireless (1)
- Tagore Tech (7)
- Taiwan Semiconductor (1)
- TDK Corporation (1)
- Tempo Semiconductor (1)
- Torex (37)
- Toshiba (25)
- Transphorm (21)
- TransSIP (2)
- Union (21)
- uPI Semiconductor (2)
- Valens Semiconductor (31)
- Wise Integration (3)
- Wolfspeed (23)
- Xilinx (22)
- XL Semiconductor (3)
- XYSemi (62)
Overview
| Topology | Flyback Converter |
| Input voltage | 70-130 V |
| Output 1 | 12 V / 0.6 A |
Description
In traditional isolated high voltage flyback converters, tight regulation is achieved using opto-couplers to transfer regulation information from the secondaryside reference circuitry to the primary side. The problem is that opto-couplers add significant complexity to isolated designs: there is propagation delay, aging, and gain variation, all of which complicate power supply loop compensation and can reduce reliability. Moreover, during start-up, either a bleeder resistor or high voltage start-up circuit is required to initially power up the IC. Unless an additional high voltage MOSFET is added to the start-up components, the bleeder resistor is a source of unwelcome power loss. The LT®8315 is a high voltage flyback converter with an integrated 630V/300mA switch. The LT8315 eliminates the need for an opto-coupler, complicated secondary-side reference circuitry, additional start-up components, and an external high voltage MOSFET.
Features
- Wide Input Voltage Range: 18V to 560V
- 630V/300mA Integrated Power Switch
- No Opto-Isolator Required for Regulation
- Quasi-Resonant Boundary Mode Operation
- Constant-Current and Constant-Voltage Regulation
- Low Ripple Light Load Burst ModeR Operation
- Low Quiescent Current: 70μA
- Programmable Current Limit and Soft-Start
- TSSOP Package with High Voltage Spacing
Typical applications
- Isolated Telecom, Automotive, Industrial, Medical Power Supplies, Isolated Off Line Housekeeping Power Supplies, Electric Vehicles and Battery Stacks
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | VIN | VOut1(V) | IOut1(A) | Vaux(V) | RDC 1(Ω) | RDC 2(Ω) | RDC 3(Ω) | fswitch(kHz) | L(mH) | NPRI : NSEC : NAUX | ISAT(mA) | VT(V (AC)) | L(mm) | W(mm) | H(mm) | Mount | Size | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-OLLT Offline Flyback Transformers, 99 - 269 V (AC), 12 V | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-OLLT Offline Flyback Transformers | Input Voltage 99 - 269 V (AC) | Output Voltage 112 V | Output Current 11 A | Auxiliary Voltage12 V | DC Resistance 11.725 Ω | DC Resistance 20.037 Ω | DC Resistance 30.41 Ω | Switching Frequency 50 | Inductance2.75 mH | Turns Ratio10:1:1 | Saturation Current500 mA | Insulation Test Voltage4000 V (AC) | Length22.25 mm | Width14.6 mm | Height23.24 mm | MountTHT | SizeEE20/10/6 | ||||
| WE-OLLT Offline Flyback Transformers, 99 - 269 V (AC), 48 V | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-OLLT Offline Flyback Transformers | Input Voltage 99 - 269 V (AC) | Output Voltage 148 V | Output Current 10.3 A | Auxiliary Voltage12 V | DC Resistance 11.4 Ω | DC Resistance 20.425 Ω | DC Resistance 30.32 Ω | Switching Frequency 50 | Inductance2.4 mH | Turns Ratio2.5:1:0.25 | Saturation Current490 mA | Insulation Test Voltage4000 V (AC) | Length22.25 mm | Width14.6 mm | Height23.24 mm | MountTHT | SizeEE20/10/6 | ||||
 | WE-OLLT Offline Flyback Transformers, 99 - 269 V (AC), 5 V | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-OLLT Offline Flyback Transformers | Input Voltage 99 - 269 V (AC) | Output Voltage 15 V | Output Current 11.6 A | Auxiliary Voltage20 V | DC Resistance 14.55 Ω | DC Resistance 20.015 Ω | DC Resistance 30.695 Ω | Switching Frequency 100 | Inductance3.3 mH | Turns Ratio24:1:4 | Saturation Current360 mA | Insulation Test Voltage1500 V (AC) | Length13.46 mm | Width17.75 mm | Height12.7 mm | MountSMT | SizeEP13 |