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MAX17410

Dual-Phase, Quick-PWM Controller for IMVP6+ CPU Core Power Supplies

Maxim Integrated 

Dual-Phase, Quick-PWM Controller

for IMVP6+ CPU Core Power Supplies

ELECTRICAL CHARACTERISTICS (continued)

(Circuit of Figure 1, VIN = 10V, VCC = VDD = VSHDN = VPGDIN = VPSI = VILIM = 5V, VV3P3 = 3.3V, VDPRSLPVR = VDPRSTP = VGNDS =

VPGND_ = 0, CSPAVG = CSP_ = CSN_ = OUTS = 1.0000V, RFB = 3.57kΩ from FB to VPS, [D6–D0] = [0101000]; TA = 0°C to +85°C,

unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

Output Undervoltage-

Protection Threshold

VUVP

Measured at FB with respect to the voltage -450

target set by the VID code; see Table 4

-400

-350

mV

Output Undervoltage-

Propagation Delay

CLKEN Startup Delay and

Boot Time Period

tUVP FB forced 25mV below trip threshold

10

μs

tBOOT

Measured from the time when FB reaches

the boot target voltage (Note 2)

20

60

100

μs

PWRGD Startup Delay

CLKEN and PWRGD Threshold

CLKEN and PWRGD Delay

Measured at startup from the time when

CLKEN goes low

3

6.5

10

ms

Lower threshold,

Measured at FB with falling edge

-350 -300 -250

respect to the voltage (undervoltage)

target set by the VID

mV

code; see Table 4,

Upper threshold,

20mV hysteresis (typ) rising edge

+150 +200 +250

(overvoltage)

FB forced 25mV outside the PWRGD trip

threshold s

10

μs

PHASEGD Delay

V(CCI, FB) forced 25mV outside trip

10

threshold s

CLKEN, PWRGD, and PHASEGD

Measured from the time when FB reaches

Transition Blanking Time

(VID Transitions)

tBLANK the target voltage (Note 2)

20

PHASEGD Transition Blanking

Time (Phase 2 Enable Transitions)

CLKEN Output Low Voltage

Number of DH2 pulses for which PHASEGD

32

is blanked after phase 2 is enabled

Low state, ISINK = 3mA

CLKEN Output High Voltage

High state, ISOURCE = 3mA

V3P3 -

0.4

μs

μs

Pulses

0.4

V

V

PWRGD, PHASEGD Output

Low Voltage

Low state, ISINK = 3mA

0.4

V

PWRGD, PHASEGD Leakage

Current

CSN_ Pulldown Resistances

in Shutdown

High-impedance state; PWRGD, PHASEGD

forced to 5V; TA = +25°C

SHDN = 0, measured after soft-shutdown

completed (DL = low)

1

μA

10

VCC Undervoltage-Lockout

Threshold

THERMAL PROTECTION

VUVLO(VCC)

Rising edge, 65mV typical hysteresis,

controller disabled below this level

4.05 4.27 4.48

V

THRM, NTC Pullup Current

ITHRM, INTC VTHRM = VNTC = 1V

40

50

60

μA

Ratio of NTC Pullup Current to

THRM Pullup Current

INTC/ITHRM VTHRM = VNTC = 1V

0.995

1

1.025 μA/μA

4 _______________________________________________________________________________________

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