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NX2415

TWO PHASE SYNCHRONOUS PWM CONTROLLER WITH INTEGRATED FET DRIVER AND DIFFERENTIAL CURRENT SENSE

Microsemi Corporation 

NX2415

PARAMETER

Under Voltage, Vcc ,

Enable(EN) & ENBUS

SYM

VCC-Threshold

VCC_UVLO

VCC-Hysteresis

EN Threshold

EN Hysteresis

ENBUS Threshold

ENBUS Hysteresis

Reference Voltage

Ref Voltage

Ref Voltage line regulation

Oscillator (Rt)

Frequency for each phase

Ramp-Amplitude Voltage

Ramp Peak

Ramp Valley

Max Duty Cycle

Min Duty Cycle

Transconductance

Amplifiers(CSCOMP)

Open Loop Gain

Transconductance

Voltage Mode Error

Amplifier

VCC_Hyst

VREF

Fs

VRAMP

Open Loop Gain

Input Offset Voltage

Output Current Source

Output Current Sink

Output HI Voltage

Output LOW Voltage

SS (Internal )

Soft Start time

Power Good(Pgood)

Threshold

Hysteresis

PGood Voltage Low

Vio_v

Tss

High Side Driver(CL=4700pF)

TEST CONDITION

VCC Rising

Vcc Rising

VBUS Rising

4.5V<Vcc<5.5V

Rt=45kohm

200Khz/Phase

200Khz/Phase

VSEN Falling

IPGood=-5mA

MIN TYP MAX UNITS

4

V

0.2

V

0.6

V

0.1

V

1.6

V

0.16

V

0.8

V

1

%

400

KHz

1

V

2.5

V

1.5

V

95

%

0

%

50

65

1600

dB

umoh

50

0

5

5

Vcc-1.5

20

74

5

0.5

dB

mV

mA

mA

V

0.5

V

mS

%VID

%

V

Output Impedance , Sourcing Rsource(Hdrv)

I=200mA

1.1

Current

Output Impedance , Sinking Rsink(Hdrv)

I=200mA

0.8

Current

Rise Time

THdrv(Rise)

VBST-VSW=4.5V

24

Fall Time

THdrv(Fall)

VBST-VSW=4.5V

24

Deadband Time

Tdead(L to Ldrv going Low to Hdrv going

30

H)

High, 10%-10%

ohm

ohm

ns

ns

ns

Rev.4.8

3

05/06/08

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