MAX1544 데이터 시트보기 (PDF) - Maxim Integrated

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MAX1544

Dual-Phase, Quick-PWM Controller for AMD Hammer CPU Core Power Supplies

Maxim Integrated 

Dual-Phase, Quick-PWM Controller for

AMD Hammer CPU Core Power Supplies

ABSOLUTE MAXIMUM RATINGS

V+ to GND ..............................................................-0.3V to +30V

VCC to GND ..............................................................-0.3V to +6V

VDD to PGND............................................................-0.3V to +6V

SKIP, SUS, D0–D4 to GND.......................................-0.3V to +6V

ILIM, FB, OFS, CCV, CCI, REF, OAIN+,

OAIN- to GND.........................................-0.3V to (VCC + 0.3V)

CMP, CSP, CMN, CSN, GNDS to GND ......-0.3V to (VCC + 0.3V)

TON, TIME, VROK, S0–S1, OVP to GND ....-0.3V to (VCC + 0.3V)

SHDN to GND (Note 1)...........................................-0.3V to +18V

DLM, DLS to PGND ....................................-0.3V to (VDD + 0.3V)

BSTM, BSTS to GND ..............................................-0.3V to +36V

DHM to LXM ...........................................-0.3V to (VBSTM + 0.3V)

LXM to BSTM............................................................-6V to +0.3V

DHS to LXS..............................................-0.3V to (VBSTS + 0.3V)

LXS to BSTS .............................................................-6V to +0.3V

GND to PGND .......................................................-0.3V to +0.3V

REF Short-Circuit Duration .........................................Continuous

Continuous Power Dissipation (TA = +70°C)

40-Pin 6mm ✕ 6mm Thin QFN

(derate 23.2mW/°C above +70°C) ...............................1.860W

Operating Temperature Range .........................-40°C to +100°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Note 1: SHDN may be forced to 12V for the purpose of debugging prototype boards using the no-fault test mode, which disables

fault protection and overlapping operation.

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(Circuit of Figure 1, V+ = 15V, VCC = VDD = VSHDN = VTON = VSKIP = VS0 = VS1 = VOVP = 5V, VFB = VCMP = VCMN = VCSP = VCSN =

1.3V, OFS = SUS = GNDS = D0–D4 = GND; TA = 0°C to +85°C, unless otherwise specified. Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

PWM CONTROLLER

Input Voltage Range

DC Output Voltage Accuracy

(Note 2)

Battery voltage, V+

4

VCC, VDD

4.5

V+ = 4.5V to 28V, DAC codes ≥ 1V

-10

includes load

regulation error

DAC codes from

0.60V to 1V

-15

28

V

5.5

+10

mV

+15

Line Regulation Error

Input Bias Current

OFS Input Range

IFB, IGNDS

IOFS

VCC = 4.5V to 5.5V, V+ = 4.5V to 28V

FB, GNDS

OFS

5

mV

-2

+2

µA

-0.1

+0.1

0

2

V

OFS Gain

AOFS

∆VOUT/∆VOFS;

∆VOFS = VOFS, VOFS = 0 to 1V

∆VOUT/∆VOFS;

∆VOFS = VOFS-VREF, VOFS = 1V to 2V

-0.129 -0.125 -0.117

V/V

-0.129 -0.125 -0.117

GNDS Input Range

GNDS Gain

TIME Frequency Accuracy

AGNDS

fTIME

∆VOUT/∆VGNDS

1000kHz nominal, RTIME = 15kΩ

500kHz nominal, RTIME = 30kΩ

250kHz nominal, RTIME = 60kΩ

Shutdown, RTIME = 30kΩ

-20

+200 mV

0.97 0.99 1.01

V/V

900 1000 1100

460 500 540

kHz

225 250 275

125

2 _______________________________________________________________________________________

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