Ultra Wide Input Current Mode PWM Controller

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Overview

The NCP12700 is a fixed frequency, peak current mode, PWM controller containing all of the features necessary for implementing single-ended power converter topologies. The device features a high voltage startup capable of operating over a wide input range (9 – 120/200 V MSOP10/WQFN10) and supplying at least 20 mA to provide temporary bias to VCC during system startup.The controller offers an adjustable soft-start, input voltage UVLO protection, and an adjustable Over-Power Protection circuit which limits the total power capability of the circuit as the input voltage increases, easing the system thermal design. The UVLO pin also features a shutdown comparator which allows for an external signal to disable switching and bring the controller into a low quiescent state.

  • Low to medium voltage isolated DC-DC
  • CCM & DCM Flyback Converters
  • Forward converters
  • Telecom DC-DC Modules
  • Industrial power converters
  • Railway DC-DC Modules
  • Wide Input Range (9 – 120/200 V; MSOP10/WQFN10)
  • Current Mode Control with Integrated Slope Compensation
  • Single Resistor Programmable Oscillator
  • Input Voltage UVLO with Hysteresis
  • 1 A / 2.8 A Source / Sink Gate Driver
  • Several Fault Protections:
    - User Adjustable Over-Power Protection
    - Overload Protection with 30 ms Overload Timer
    - NTC-Compatible Fault Interface for Thermal Protection
    - Output OVP Fault Interface

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ECAD Models

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Package Type

Case Outline

MSL Type

MSL Temp (°C)

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VCC Min (V)

VCC Max (V)

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Pricing ($/Unit)

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NCP12700BDNR2G

Active

Pb

A

H

P

MSOP-10

1

260

REEL

4000

Y

Forward

1

Current Mode

6.5

120

-

$0.5175

More Details

NCP12700BMTTXG

Active

Pb

A

H

P

WQFN-10

1

260

REEL

3000

Y

Forward

1

Current Mode

6.5

200

-

$0.7197

More Details

NCP12700ADNR2G

Active

Pb

A

H

P

MSOP-10

1

260

REEL

4000

Y

Forward

1

Current Mode

6.5

120

-

$0.5175

More Details

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