MAX1907A 데이터 시트보기 (PDF) - Maxim Integrated

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MAX1907A

Quick-PWM Master Controllers for Voltage Positioned CPU Core Power Supplies (IMVP-IV)

Maxim Integrated 

Quick-PWM Master Controllers for Voltage-

Positioned CPU Core Power Supplies (IMVP-IV)

ELECTRICAL CHARACTERISTICS (continued)

(Circuit of Figure 1, V+ = 15V, VCC = VDD = VSHDN = VTON = VDPSLP = VBI = VOAIN- = 5V, VFB = VCSP = VCSN = VOAIN+ = VNEG = VPOS

= 1.26V, ILIM = VCC, SUS = D5 = D1= D0= S0 = S1 = S2 = B0 = GND, VD4 = VD3 = VD2 = 1V, VB2 = 2V. TA = 0°C to +85°C, unless

otherwise specified.)

PARAMETER

IMVPOK, CLKEN Threshold

SYMBOL

CONDITIONS

SYSPOK = VCC;

measured at FB with

respect to unloaded

output voltage

Lower threshold

(undervoltage)

Upper threshold

(overvoltage)

MIN TYP MAX UNITS

-12

-10

-8

%

8

10

12

CLKEN Delay

tCLKEN

FB in regulation, measured from the rising

edge of SYSPOK

30

50

90

µs

IMVPOK, CLKEN Transition

Blanking Time

Measured from the time when FB reaches

the voltage set by the DAC code, clock

32

clks

speed set by RTIME

IMVPOK Delay

tIMVPOK

FB in regulation, measured from the falling

edge of CLKEN

3

5

7

ms

IMVPOK, CLKEN, Output Low

Voltage

ISINK = 3mA

0.3

V

IMVPOK, CLKEN, Leakage

Current

High state, IMPOK, CLKEN forced to 5.5V

1

µA

VCC Undervoltage

Lockout Threshold

Thermal Shutdown Threshold

CURRENT LIMIT

Current-Limit Threshold Voltage

(Positive, Default)

Current-Limit Threshold Voltage

(Positive, Adjustable)

Current-Limit Threshold Voltage

(Negative)

Current-Limit Threshold Voltage

(Zero Crossing)

CSP, CSN Input Ranges

CSP, CSN Input Current

ILIM Input Current

Current-Limit Default

Switchover Threshold

GATE DRIVERS

DH Gate-Driver On-Resistance

DL Gate-Driver On-Resistance

DH Gate-Driver Source/Sink

Current

DL Gate-Driver Sink Current

VUVLO(VCC)

Rising edge, hysteresis = 20mV,

PWM disabled below this level

Hysteresis = 10°C

CSP - CSN, ILIM = VCC

CSP - CSN

VILIM = 0.3V

VILIM = 1V

CSP - CSN; ILIM = VCC, SUS = GND and

DPSLP = VCC

GND - LX; SUS = VCC or DPSLP = GND

VCSP = VCSN = 0 to 5V

VILIM = 0 to 5V

ILIM

RON(DH)

RON(DL)

BST - LX forced to 5V

High state (pullup)

Low state (pulldown)

DH forced to 2.5V, BST - LX forced to 5V

DL forced to 2.5V

4.0

4.4

V

160

°C

47

50

53

mV

27

30

33

mV

97

100 103

-68

-63

-58

mV

4

mV

0

2

V

-1

+1

µA

0.01 200

nA

3 VCC - 1 VCC - 0.4 V

1.2

4.0

Ω

1.2

4.0

Ω

0.5

1.5

1.6

A

4

A

4 _______________________________________________________________________________________

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