MAX4370 Просмотр технического описания (PDF) - Maxim Integrated

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MAX4370

Current-Regulating Hot-Swap Controller with DualSpeed/BiLevel Fault Protection

Maxim Integrated 

Current-Regulating Hot-Swap Controller with

DualSpeed/BiLevel Fault Protection

ELECTRICAL CHARACTERISTICS (continued)

(VIN = +2.7V to +13.2V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VIN = +5V and TA = +25°C.) (Note 2)

PARAMETER

ON COMPARATOR

Threshold Voltage

Hysteresis

Power-Supply Rejection

Ratio

SYMBOL

CONDITIONS

VTH,ON

VHYST

PSRR

VIN = 5V, rising threshold

2.7V ≤ VIN ≤ 13.2V

MIN TYP MAX UNITS

0.575 0.6 0.625

V

3

mV

0.1

1

mV/V

Propagation Delay

Input Voltage Range

tD,COMP 10mV overdrive

10

µs

VON

Input can be driven to the absolute maximum

limit without false output inversion

-0.1

13.2

V

Input Bias Current

IB,ON

0.001

1

µA

ON Pulse Width Low

DIGITAL OUTPUT (STAT)

tRESTART To restart after a fault

20

µs

Output Leakage Current

VSTAT ≤ +13.2V

1

µA

Output Voltage Low

VOL

ISINK = 1mA

0.4

V

VIN UNDERVOLTAGE LOCKOUT

Threshold

VUVLO

Start-up is initiated when this threshold is

reached at VIN

2.25

2.67

V

Hysteresis

VUVLO,HYST

100

mV

UVLO to Start-Up Delay

tD,UVLO

Time which input voltage must exceed under-

voltage lockout before start-up is initiated

100

150

200

ms

Note 2: All devices are 100% tested at TA = +25°C. All temperature limits are guaranteed by design.

Note 3: The start-up period (tSTART) is the time during which the slow comparator is ignored and the device acts as a current limiter

by regulating the sense current with the fast comparator. It is measured from ON rising above 0.6V to STAT rising.

Note 4: The current available at GATE is a function of VGATE (see Typical Operating Characteristics.)

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