MAX6397TATA 查看數據表（PDF） - Maxim Integrated

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MAX6397TATA

Overvoltage Protection Switch/Limiter Controllers Operate Up to 72V

Maxim Integrated 

Overvoltage Protection Switch/Limiter

Controllers Operate Up to 72V

ABSOLUTE MAXIMUM RATINGS

(All pins referenced to GND, unless otherwise noted.)

IN, GATE, OUT ............................................................-0.3V to +80V

SHDN..................................................................-0.3V to (IN + 0.3V)

GATE to OUT .................................................................-0.3 to +20V

SET, REG, POK ...........................................................-0.3V to +12V

Maximum Current:

IN, REG...............................................................................350mA

All Remaining Pins ...................................................................50mA

Continuous Power Dissipation (TA = +70°C)

6-Pin TDFN (derate 18.2mW/°C above +70°C) .............1455mW

8-Pin TDFN (derate 18.2mW/°C above +70°C) .............1455mW

Operating Temperature Range (TA) ......................-40°C to +125°C

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

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

Lead Temperature ................................................................+300°C

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

ation 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

(VIN = 14V; CGATE = 6000pF, CREG = 4.7µF, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = TJ = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

Supply Voltage Range

Input Supply Current

VIN

SHDN = high, no load (MAX6397)

SHDN = high, (MAX6398)

SHDN = low, no load (MAX6397)

SHDN = low, (MAX6398)

5.5

72

V

118

140

104

130

µA

37

45

11

20

IN Undervoltage Lockout

VIN rising, enables GATE

4.66

5

5.50

V

IN Undervoltage Lockout

Hysteresis

VIN falling, disables GATE

175

mV

SET Threshold Voltage

SET Threshold Hysteresis

SET Input Current

Startup Response Time

VTH

VHYST

ISET

tSTART

With respect to GND

SHDN rising (Note 2)

1.181 1.215 1.248

V

4

%

-50

+50

nA

100

µs

GATE Rise Time

GATE rising from GND to VOUT + 8V,

CGATE = 6000pF, OUT = GND

1

ms

SET to GATE Propagation Delay

tOV

SET rising from VTH - 100mV to VTH +

100mV

0.75

µs

GATE Output High Voltage

VOUT = VIN = 6V, RGATE to IN = 1MΩ

VIN +

3.8V

VIN +

4.2V

VIN +

4.6V

VOH

V

VOUT = VIN; VIN ≥ 14V, RGATE to IN = 1MΩ

VIN +

8.5V

VIN +

9.2V

VIN +

11.5V

GATE Output Low Voltage

GATE Charge-Pump Current

GATE to OUT Clamp Voltage

SHDN Logic-High Input Voltage

SHDN Logic-Low Input Voltage

SHDN Input Pulldown Current

VOL

IGATE

VCLMP

VIH

VIL

GATE sinking 20mA, VOUT = GND

GATE = GND

VSHDN = 2V, SHDN is internally pulled

down to GND

0.38

V

75

µA

13

18

V

1.4

0.4

1

µA

Thermal Shutdown

Thermal Shutdown Hysteresis

REGULATOR (MAX6397)

Ground Current

(Note 3)

IGND

SHDN = GND

IREG = 1mA

IREG = 100mA

+150

°C

20

°C

40

48

µA

60

2 _______________________________________________________________________________________

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