Datasheet LNK3202, LNK3204-7, LNK3294, LNK3296 (Power Integrations)

LNK3202/3204-7, LNK3294 & LNK3296 LinkSwitch-TN2
Family Highly Energy Efficient Off-line Switcher IC with Integrated System Level Protection for Low Component-Count Power Supplies
Product Highlights Highest Performance and Design Flexibility
• Supports buck, buck-boost and flyback topologies • Excel ent load and line regulation
FB BP/M
• Selectable device current limit • 66 kHz operation with accurate current limit +
D S
+ • Al ows the use of low-cost off-the-shelf inductors
Wide Range LinkSwitch-TN2 DC
• Reduces size and cost of magnetics and output capacitor
High-Voltage Output DC Input
• Frequency jittering reduces EMI filter complexity • Pin-out simplifies PCB heat sinking PI-7841-041816
Enhanced Safety and Reliability Features
Figure 1. Typical Buck Converter Application (See Application Examples • Auto-restart for short-circuit and open loop faults Section for Other Circuit Configurations). • Output overvoltage protection (OVP) • Line input overvoltage protection (OVL) • Hysteretic over-temperature protection (OTP) • Extended creepage between DRAIN pin and all other pins improves field reliability • 725 V MOSFET rating for excel ent surge withstand • 900 V MOSFET rating series for industrial or extra safety margin
EcoSmart
™
– Extremely Energy Efficient
Figure 2. Package Options. P: PDIP-8C, G: SMD-8C, D: SO-8C. • Standby supply current <100 μA • On/Off control provides constant efficiency over a wide load range
Output Current Table1
• Easily meets al global energy efficiency regulations • No-load consumption <30 mW with external bias 725 V MOSFET
Applications
230 VAC ±15% 85-265 VAC
Product4
• Appliances
MDCM2 CCM3 MDCM2 CCM3
• Metering
LNK3202P/G/D
63 mA 80 mA 63 mA 80 mA • Smart LED drivers and industrial controls • IOT, home and building automation
LNK3204P/G/D
120 mA 170 mA 120 mA 170 mA
LNK3205P/G/D
175 mA 270 mA 175 mA 270 mA
Description LNK3206P/G/D
225 mA 360 mA 225 mA 360 mA The LinkSwitch™-TN2 family of ICs for non-isolated off-line power supplies provides dramatical y improved performance compared to
LNK3207P/G/D
360 mA 575 mA 360 mA 575 mA traditional linear or cap-dropper solutions. Designs using the highly 900 V MOSFET integrated LinkSwitch-TN2 ICs are more flexible and feature increased
Product4
230 VAC ±15% 85-265 VAC efficiency, comprehensive system level protection and higher reliability. The device family supports buck, buck-boost and flyback converter
MDCM2 CCM3 MDCM2 CCM3
topologies. Each device incorporates a 725 V power MOSFET, oscil ator,
LNK3294P/G
120 mA 170 mA 120 mA 170 mA On/Off control for highest efficiency at light load, a high-voltage
LNK3296P/G
225 mA 360 mA 225 mA 360 mA switched current source for self-biasing, frequency jittering, fast (cycle-by-cycle) current limit, hysteretic thermal shutdown, and output Table 1. Output Current Table. and input overvoltage protection circuitry onto a monolithic IC. Notes: 1. Typical output current in a non-isolated buck converter with devices operating LinkSwitch-TN2 ICs consume very little current in standby resulting in at default current limit and adequate heat sinking. Output power capability power supply designs that meet all no-load and standby specifications depends on respective output voltage and thermal requirements. See Key worldwide. MOSFET current limit modes can be selected through the Applications Considerations Section for complete description of assumptions, including ful y discontinuous conduction mode (DCM) operation. BYPASS pin capacitor value. The high current limit level provides 2. Mostly discontinuous conduction mode. maximum continuous output current while the low level permits using 3. Continuous conduction mode. very low cost and smal surface mount inductors. A full suite of 4. Packages: P: PDIP-8C, G: SMD-8C, D: SO-8C. protection features enables safe and reliable power supplies protecting the device and the system against input and output overvoltage faults, The device family is available in three different packages: PDIP-8C, device over-temperature faults, lost regulation, and power supply output SO-8C, and SMD-8C (725 V PNs only). overload or short-circuit faults. www.power.com September 2020 This Product is Covered by Patents and/or Pending Patent Applications. Document Outline Product Highlights Description Output Current Table Pin Functional Description LinkSwitch-TN2 Functional Description Applications Example Key Application Considerations Quick Design Checklist Absolute Maximum Ratings Thermal Resistance Key Electrical Characteristics Typical Performance Characteristics PDIP-8C (P Package) SMD-8C (G Package) SO-8C (D Package) PDIP-8C (P) and SMD-8C Package Marking SO-8C (D) Package Marking MSL Table ESD and Latch-Up Part Ordering Information