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FUDAN MICRO FM2147B-SO-T-G product image
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FUDAN MICRO FM2147B-SO-T-GRoHS

Manufacturer
FUDAN MICROAsian Brands
MPN
FM2147B-SO-T-G
LCSC Part #
C2977711
Packaging
SOIC-8
Customer #
Key Attributes
CMOS Type A leakage protector circuit
Datasheetpdf iconFUDAN MICRO FM2147B-SO-T-G
In-Stock: 3,030
3,030 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 1.0352$ 1.04
10+$ 0.8594$ 8.59
30+$ 0.7732$ 23.20
100+$ 0.6853$ 68.53
500+$ 0.5648$ 282.40
1,000+$ 0.5372$ 537.20
Standard Packaging4000/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Power Management - Specialized
ManufacturerFUDAN MICRO
PackagingSOIC-8
TypeType A + Type AC
FeaturesCurrent trip function
Operating Temperature-40℃~+85℃
Voltage - Supply4.6V~5V;4.65V~5.5V
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Introduction

AI Translation

FM2147B is a high-performance dedicated IC for residual current devices (RCDs). It integrates a regulated power supply, amplifier circuit, comparator circuit, trip controller, and trip driver circuit. External components include a trip coil, varistor, Zener diode, diode, resistors, and capacitors.

The FM2147B RCD dedicated IC is used to detect leakage signals on the live and neutral lines. When a leakage signal occurs, the zero-sequence current transformer (ZCT) detects the electrical signal, and its secondary winding output serves as the input to the RCD chip. The leakage signal can be AC type or A type (including 0°, 90°, and 135° leakage signals). When the RMS value of the residual current exceeds the rated current (rms) specified by the RCD, the output pin TRIG generates an action-level pulse with a pulse width greater than 20ms.

Features

AI Translation
  • Direct SCR drive; TRIG output pulse width >20ms upon leakage signal detection
  • Compatible with Type A (including Type AC) leakage signals
  • Consistent trip accuracy across all leakage signal types
  • Robust EMC protection
  • Operating voltage: 110V–220V (50Hz–60Hz)
  • Wide temperature range: -40–+85°C
  • Adjustable trip delay