MP2930 - 4-PHASE PWM CONTROLLER WITH 8-BIT DAC CODE

MP2930 Rev. 1.01

www.MonolithicPower.com

4

10/30/2013

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Parameter

Test conditions

Min

Typ

Max

Units

Remote-sense Amplifier

Bandwidth

-

20

-

MHz

Output High Current

VSEN-RGND=2.5V

-100

-

100

μA

Output High Current

VSEN-RGND=0.6

-100

-

100

μA

PWM Output

PWM

Output

Voltage

Low

Threshold

ILOAD=±500

μA

-

-

0.5

V

PWM

Output

Voltage

High

Threshold

ILOAD=±500

μA

4.3

-

-

V

Current Sense and Over-current Protection

Sensed

Current

Tolerance(IDROOP)

ISEN1=ISEN2=ISEN3=ISEN4=50

μA

47

50

53

μA

Overcurrent

Trip

level

for

Average Current

72

85

98

μA

Peak Current Limit for Individual

Channel

120

μA

Thermal Monitoring and Fan Control

TM Input Voltage for VR_FAN

TRIP

1.55

1.65

1.75

V

TM Input Voltage for VR_FAN

Reset

1.85

1.95

2.05

V

TM Input Voltage for VR_HOT

Trip

1.3

1.4

1.5

V

TM Input Voltage for VR_HOT

Reset

1.55

1.65

1.75

V

Leakage current of VR_FAN

With

externally

pull-up

resistor

connected to VCC

-

-

30

μA

VR_RAN Low Voltage

IVR_FAN=4mA

-

-

0.4

V

Leakage Current of VR_HOT

With

externally

pull-up

resistor

connected to VCC

-

-

30

μA

VR_HOT Low Voltage

IVR_HOT=4mA

-

-

0.4

V

VR Ready and Protection Monitors

Leakage Current of VR_RDY

With

externally

pull-up

resistor

connected to VCC

-

-

30

μA

VR_RDY Low Voltage

IVR_RDY=4mA

-

-

0.4

V

Undervoltage Threshold

VDIFF Falling

48

50

52

℅ID

VR_RDY Reset Voltage

VDIFF Rising

58

60

62

℅ID

Overvoltage

Protection

Threshold

Before Valid ID

1.250

1.275

1.300

V

After valid ID, the voltage above ID

150

175

200

Mv

Overvoltage

Protection

Reset

Hysteresis

-

100

-

mV