TNY178PN DIP7 ORJINAL
1. It is the connection point for an external bypass capacitor
for the internally generated 5.85 V supply.
2. It is a mode selector for the current limit value, depending
on the value of the capacitance added. Use of a 0.1 μF
capacitor results in the standard current limit value. Use of
a 1 μF capacitor results in the current limit being reduced to
that of the next smaller device size. Use of a 10 μF capacitor
results in the current limit being increased to that of the next
larger device size for TNY175-180.
3. It provides a shutdown function. When the current into
the bypass pin exceeds ISD, the device latches off until the
BP/M voltage drops below 4.9 V, during a power down.
This can be used to provide an output overvoltage function
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توضیحات
TNY178PN DIP7 ORJINAL
• 650 V rating optimized for non-active PFC applications
• 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 effi ciency in enclosed
adapters/chargers
– Allows optimum TinySwitch-LT choice by swapping
devices with no other circuit redesign
• Tight I2
f 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 fi lter costs
• Pin-out simplifi es heatsinking to the PCB
• SOURCE pins are electrically quiet for low EMI
توضیحات تکمیلی
| کیفیت |
original |
|---|---|
| Package |
DIP-7 |
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