TNY278PN Power Management IC Energy Efficient, Off-Line Switcher with Enhanced Flexibility and Extended Power Range
Product Highlights Lowest System Cost with Enhanced Flexibility
• Simple ON/OFF control, no loop compensation needed
• Selectable current limit through BP/M capacitor value
- Higher current limit extends peak power or, in open frame applications, maximum continuous power
- Lower current limit improves efficiency in enclosed adapters/chargers
- Allows optimum TinySwitch-III choice by swapping devices with no other circuit redesign
• Tight I2f parameter tolerance reduces system cost
- Maximizes MOSFET and magnetics power delivery
- Minimizes max overload power, reducing cost of transformer, primary clamp & secondary components
• ON-time extension
– extends low line regulation range/ hold-up time to reduce input bulk capacitance
• Self-biased: no bias winding or bias components
• Frequency jittering reduces EMI filter costs
• Pin-out simplifies heatsinking to the PCB
• SOURCE pins are electrically quiet for low EMI
| Product Attributes | Select All |
| Manufacturer | Power Integrations |
| Packaging | Tube |
| Part Status | Active |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 700V |
| Topology | Flyback |
| Voltage - Supply (Vcc/Vdd) | - |
| Duty Cycle | 0.65 |
| Frequency - Switching | 132kHz |
| Power (Watts) | 28W |
| Fault Protection | Current Limiting, Open Loop, Over Temperature, Over Voltage, Short Circuit |
| Control Features | EN |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Package / Case | 8-DIP (0.300", 7.62mm), 7 Leads |
| Supplier Device Package | DIP-8C |
| Mounting Type | Through Hole |
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TNY278PN Power Management IC Energy EffiCient Off Line Switcher Enhanced Flexible Images
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