NCP5351D datasheet(5/14 Pages) ONSEMI

Part #	NCP5351D

Description	4 A Synchronous Buck Power MOSFET Driver

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NCP5351

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ELECTRICAL CHARACTERISTICS (0°C < TJ < 125°C; VS = 5.0 V; 4.0 V < VBST < 25 V; VEN = VS; unless otherwise noted)

Parameter

Test Conditions

Min

Typ

Max

Unit

DC OPERATING SPECIFICATIONS

POWER SUPPLY

VS Quiescent Current, Operating

VCO = 0 V, 4.5 V; No output switching

−

1.0

−

mA

VBST Quiescent Current, Operat-

ing

VCO = 0 V, 4.5 V; No output switching

−

50

−

mA

Quiescent Current, Non−Operat-

ing

VEN = 0 V; VCO = 0 V, 4.5 V

−

25

mA

Undervoltage Lockout

Start Threshold

CO = 0 V

4.05

4.25

4.48

V

Hysteresis

CO = 0 V

−

275

−

mV

CO INPUT CHARACTERISTICS

High Threshold

−

2.0

−

V

Low Threshold

−

0.8

V

Input Bias Current

0 < VCO < VS

−

0

1.0

mA

EN INPUT CHARACTERISTICS

High Threshold

Both outputs respond to CO

2.0

−

V

Low Threshold

Both outputs are low, independent of CO

−

0.8

V

Input Bias Current

0 < VEN < VS

−

0

10

mA

THERMAL SHUTDOWN

Overtemperature Trip Point

−

170

−

°C

Hysteresis

−

30

−

°C

HIGH−SIDE DRIVER

Peak Output Current

−

4.0

−

A

Output Resistance (Sourcing)

Duty Cycle < 2.0%, Pulse Width < 100 ms, TJ = 125°C,

VBST − VDRN = 4.5 V, VTG = 4.0 V + VDRN

−

0.5

−

W

Output Resistance (Sinking)

Duty Cycle < 2.0%, Pulse Width < 100 ms,

TJ = 125°C, VBST − VDRN = 4.5 V, VTG = 0.5 V + VDRN

−

0.42

−

W

LOW−SIDE DRIVER

Peak Output Current

−

4.0

−

A

Output Resistance (Sourcing)

Duty Cycle < 2.0%, Pulse Width < 100 ms, TJ = 125°C,

VS = 4.5 V, VBG = 4.0 V

−

0.6

−

W

Output Resistance (Sinking)

Duty Cycle < 2.0%, Pulse Width < 100 ms, TJ = 125°C,

VS = 4.5 V, VBG = 0.5 V

−

0.42

−

W

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