MAX5949BESA+ datasheet(2/18 Pages) MAXIM

Part #	MAX5949BESA+

Description	-48V Hot-Swap Controllers with External RSENSE

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Manufacturer	MAXIM [Maxim Integrated Products]

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-48V Hot-Swap Controllers

with External RSENSE

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VEE = 0V, VDD = 48V, TA = -40°C to +85°C. Typical values are at TA = +25°C, unless otherwise noted.) (Notes 2, 5)

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.

(All voltages are referenced to VEE, unless otherwise noted.)

Supply Voltage (VDD - VEE ) .................................-0.3V to +100V

PWRGD, PWRGD .................................................-0.3V to +100V

DRAIN (Note 1)........................................................-2V to +100V

PWRGD to DRAIN .............................................… -0.3V to +95V

PWRGD to VDD........................................................-95V to +85V

SENSE (Internally Clamped) .................................-0.3V to +1.0V

GATE (Internally Clamped) ....................................-0.3V to +18V

UV and OV..............................................................-0.3V to +60V

Current Through SENSE ...................................................±40mA

Current into GATE...........................................................±300mA

Current into DRAIN .........................................-100mA to +20mA

Current into Any Other Pin................................................±20mA

Continuous Power Dissipation (TA = +70°C)

8-Pin SO (derate 5.9mW/°C above +70°C)..................471mW

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

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

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

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

Soldering Temperature (reflow) .......................................+260°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

POWER SUPPLIES

Operating Input Voltage Range

VDD

20

80

V

Supply Current

IDD

(Note 3)

0.7

2

mA

GATE DRIVE AND CLAMPING CIRCUITS

GATE Pin Pullup Current

IPU

Gate drive on, VGATE = VEE

-30

-45

-60

µA

GATE Pin Pulldown Current

IPD

Gate drive off, VGATE = 2V, TA = +25°C

24

50

70

mA

External Gate Drive

∆VGATE

VGATE - VEE, 20V

≤ VDD ≤ 80V

10

13.5

18

V

GATE to VEE Clamp Voltage

VGSCLMP

VGATE - VEE, IGS = 30mA

15

16.4

18

V

CIRCUIT BREAKER

Current-Limit Trip Voltage

VCL

VCL = VSENSE - VEE

40

50

60

mV

SENSE Input Bias Current

ISENSE

VSENSE = 50mV

0

-0.2

-2

µA

UNDERVOLTAGE LOCKOUT

Internal Undervoltage-Lockout

Voltage High

VUVLOH

VDD increasing

13.8

15.4

17.0

V

Internal Undervoltage-Lockout

Voltage Low

VUVLOL

VDD decreasing

11.8

13.4

15.0

V

UV PIN

UV High Threshold

VUVH

UV voltage increasing

1.240

1.255

1.270

V

UV Low Threshold

VUVL

UV voltage decreasing

1.105

1.125

1.145

V

UV Hysteresis

VUVHY

130

mV

UV Input Bias Current

IINUV

VUV = VEE

0-0.5

µA

OV PIN

OV High Threshold

VOVH

OV voltage increasing

1.235

1.255

1.275

V

OV Low Threshold

VOVL

OV voltage decreasing

1.210

1.235

1.255

V

OV Hysteresis

VOVHY

20

mV

OV Input Bias Current

IINOV

VOV = VEE

0-0.5

µA

Note 1:

Test condition per Figure 1. DRAIN current must be limited to the specified 100mA maximum.

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