Automotive High-Voltage Switching Regulator

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The NCV1076 / NCP1077 products integrate a fixed frequency current mode controller with a 670 V MOSFET. Available in a PDIP-7 or SOT-223 package, the NCV1076/7 offer a high level of integration, including soft-start, frequency-jittering, short-circuit protection, skip-cycle, a maximum peak current set point, ramp compensation, and a Dynamic Self-Supply (eliminating the need for an auxiliary winding).

Unlike other monolithic solutions, the NCV1076/7 is quiet by nature: during nominal load operation, the part switches at one of the available frequencies (65, 100 or 130 kHz). When the output power demand diminishes, the IC automatically enters frequency foldback mode and provides excellent efficiency at light loads. When the power demand reduces further, it enters into a skip mode to reduce the standby consumption down to a no load condition.

Protection features include: a timer to detect an overload or a short-circuit event, Overvoltage Protection with auto-recovery and AC input line voltage detection.

For improved standby performance, the connection of an auxiliary winding stops the DSS operation and helps to reduce input power consumption below 50 mW at high line.

  • EV Auxiliary Power Supply
  • On Board chargers
  • EV Traction Inverters
  • Integrated 670 V MOSFET with RDS(on) of 4.7 Ω
  • Current-Mode Fixed Frequency Operation (65/100/130 kHz)
  • Peak Current: NCP1076 = 650mA / NCP1077 = 800 mA
  • Skip-Cycle Operation at Low Peak Current
  • Dynamic Self-Supply (DSS)
  • Auto-Recovery Output Short Circuit Protection with Timer-Based Detection
  • 300 µA No Load Power Consumption
  • AEC-Qualifiied

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CAD Models

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Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Control Mode

fsw Typ (kHz)

fJitter Typ (%)

Stand-by Mode

RDS(ON) Typ (Ω)

V(BR)DSS Max (V)

IPeak (mA)

HV Start-up Min (V)

DSS (mA)

UVLO

Short Circuit Protection

Over Power Compensation

Brown-out

Latch

Reference Price

NCV1076P065G

Loading...

Active

CAD Model

Pb

A

H

P

PDIP-7

NA

0

TUBE

50

Y

Current Mode

65

Yes

Yes

4.7

670

650

Yes

9.2

6.3

Yes

No

No

No

$0.8288

More Details

NCV1076P100G

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Active

CAD Model

Pb

A

H

P

PDIP-7

NA

0

TUBE

50

Y

Current Mode

100

Yes

Yes

4.7

670

650

Yes

9.2

6.3

Yes

No

No

No

$0.8292

More Details

NCV1076P130G

Loading...

Active

CAD Model

Pb

A

H

P

PDIP-7

NA

0

TUBE

50

Y

Current Mode

130

Yes

Yes

4.7

670

650

Yes

9.2

6.3

Yes

No

No

No

$0.8292

More Details

NCV1077CSTBT3G

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Active

CAD Model

Pb

A

H

P

SOT-223-4 / TO-261-4D

3

260

REEL

4000

Y

Current Mode

100

Yes

Yes

4.7

670

800

Yes

9.2

6.3

Yes

No

No

No

$0.8855

More Details

NCV1077P065G

Loading...

Active

CAD Model

Pb

A

H

P

PDIP-7

NA

0

TUBE

50

Y

Current Mode

65

Yes

Yes

4.7

670

800

Yes

9.2

6.3

Yes

No

No

No

$0.8292

More Details

NCV1077P100G

Loading...

Active

CAD Model

Pb

A

H

P

PDIP-7

NA

0

TUBE

50

Y

Current Mode

100

Yes

Yes

4.7

670

800

Yes

9.2

6.3

Yes

No

No

No

$0.9613

More Details

NCV1077STBT3G

Loading...

Active

CAD Model

Pb

A

H

P

SOT-223-4 / TO-261-4D

3

260

REEL

4000

Y

Current Mode

100

Yes

Yes

4.7

670

800

Yes

9.2

6.3

Yes

No

No

No

$0.8855

More Details

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