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NE5562

Features: • Stabilized power supply• Temperature-compensated reference source• Sawtooth generator• Pulse width modulator• Remote on/off switching• Current limiting (2 levels)Application• Auxiliary comparator, with adjustable hysteresis• Loop fault pr...

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SeekIC No. : 004433398 Detail

NE5562: Features: • Stabilized power supply• Temperature-compensated reference source• Sawtooth generator• Pulse width modulator• Remote on/off switching• Current limitin...

NE5562 Data Sheet

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Part Number:
NE5562
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Stabilized power supply
• Temperature-compensated reference source
• Sawtooth generator
• Pulse width modulator
• Remote on/off switching
• Current limiting (2 levels)


Application

• Auxiliary comparator, with adjustable hysteresis
• Loop fault protection
• Demagnetization/overvoltage protection
• Duty cycle adjust and clamp
• Feed-forward control
• External synchronization
• Total shutdown after adjustable number of overcurrent faults
• Soft-start


Pinout

Connection Diagram


Specifications

  PARAMETER
RATING
UNIT
VS Supply voltage-fed mode (Pin 17)
16
V
ICC current-fed mode (Pin 7)
30
mA
  Output transistor output current
100
mA
  Sync (Pin 11)
VS
V
  Duty cycle control (Pin 5)
VZ
V
  Remote on/off (Pin 6)
VS
V
  Output invert control (Pin 15)
VS
V
  Feedback pin (Pin 8)
VZ
V
  CDELAY (Pin 16)
VZ
V
  External mod in (Pin 4)
VS
V
FF Feed-forward (Pin 1)
VS
V
  Demag/overvoltage in (Pin 18)
VZ
V
  Current sense (Pin 14)
VS
V
  80Low supply sense and hysteresis (Pins 12, 13)
VS
V
TJ Operating junction temperature
135
°C
TSTG Storage temperature range
-65 to +150
°C
TSOLD Lead soldering temperature (10sec)
300
°C
NOTES:
1. Ground Pin 20 must always be the most negative pin.
2. For power dissipation, see the application section which follows.


Description

The NE/SE5562 is a single-output control circuit for switched-mode power supplies. This single monolithic IC contains all control and protection features needed for full-featured switched-mode power supplies.

The 100mA source/sink output of NE/SE5562 is designed to drive power FETs directly. The associated output logic is designed to prevent double pulsing or cross-conduction current spiking on the output. All of the control and protect of NE/SE5562 features work cycle-by-cycle up to the maximum operating frequency of 600kHz. For ease of interface, all digital inputs are TTL or CMOS compatible.

The NE5562 is supplied in 20-pin glass/ceramic (Cerdip), plastic DIP, and plastic SO packages. The NE grade part is characterized and guaranteed over the commercial ambient temperature range of 0°C to +70°C and junction temperature range of 0°C to +85°C. The SE5562 is supplied in the glass/ceramic (Cerdip) package. The SE grade part is characterized and guaranteed over the ambient temperature range of -55 to +125°C and junction temperature range of -55 to +135°C.




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