MAX5041AEAI datasheet(2/26 Pages) MAXIM

2 / 26 page

Dual-Phase, Parallelable, Average-Current-Mode

Controllers

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VCC = +5V, circuit of Figure 1, TA = -40°C to +85°C, unless otherwise noted. Typical specifications are at TA = +25°C.) (Note 1)

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.

IN to SGND.............................................................-0.3V to +30V

BST_ to SGND ........................................................-0.3V to +35V

DH_ to LX_ ................................-0.3V to [(VBST_ - VLX_) + 0.3V]

DL_ to PGND ..............................................-0.3V to (VCC + 0.3V)

BST_ to LX_ ..............................................................-0.3V to +6V

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

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

SGND to PGND .....................................................-0.3V to +0.3V

All Other Pins to SGND...............................-0.3V to (VCC + 0.3V)

Continuous Power Dissipation (TA = +70°C)

28-Pin SSOP (derate 9.5mW/°C above +70°C) ..........762mW

Operating Temperature Range ...........................-40°C to +85°C

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

Storage Temperature Range .............................-60°C to +150°C

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

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

SYSTEM SPECIFICATIONS

828

Input Voltage Range

VIN

Short IN and VCC together for +5V input

operation

4.75

5.5

Quiescent Supply Current

EN = VCC or SGND

Efficiency

ILOAD = 52A (26A per phase)

OUTPUT VOLTAGE

MAX5038A only, no load

-0.8

+0.8

Nominal Output Voltage

Accuracy (Note 4)

MAX5038A only, no load, VIN = VCC =

+4.75V to +5.5V or VIN = +8V to +28V

(Note 2)

-1

MAX5041A only, no load

0.992

1.008

SENSE+ to SENSE- Voltage

Accuracy (Note 4)

MAX5041A only, no load, VIN = VCC =

+4.75V to +5.5V or VIN = +8V to +28V

0.990

1.010

STARTUP/INTERNAL REGULATOR

VCC Undervoltage Lockout

UVLO

VCC rising

4.0

4.15

4.5

VCC Undervoltage Lockout

Hysteresis

200

VCC Output Accuracy

VIN = +8V to +28V, ISOURCE = 0 to 80mA

4.85

5.1

5.30

MOSFET DRIVERS

Output Driver Impedance

RON

Low or high output

Ω

Output Driver Source/Sink

Current

IDH_, IDL_4

Nonoverlap Time

tNO

CDH_/DL_ = 5nF

OSCILLATOR AND PLL

CLKIN = SGND

238

250

262

Switching Frequency

fSW

CLKIN = VCC

475

500

525

kHz

PLL Lock Range

fPLL

125

600

kHz

PLL Locking Time

tPLL

200

µs

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