MAX5911 查看數據表（PDF） - Maxim Integrated

零件编号

产品描述 (功能)

生产厂家

MAX5911

-48V Simple Swapper Hot-Swap Switches

Maxim Integrated 

-48V Simple Swapper Hot-Swap Switches

ELECTRICAL SPECIFICATIONS (continued)

(VIN = -48V, AGND = DGND = 0, UVLO = open circuit, VENABLE = +3.3V, and TA = -40°C to +85°C, unless otherwise noted. Typical

values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

Power-Not-Good Output Delay

(Note 4)

PGDEL

After |VIN - VOUT| increases above

(VPG + PGHYS)

8

14

20

ms

Thermal Shutdown Temperature

(Note 5)

TJ

140

oC

Default UVLO

UVLO Hysteresis

UVLO open circuit, |VIN| increasing

UVLO open circuit, percentage of UVLO

threshold

-30

-28

-26

V

12

%

UVLO Comparator Threshold

UVLO Input Resistance

RUVLO

Referenced to VIN, UVLO open circuit,

|VIN| increasing

+1.258

V

95

kΩ

Note 1: Minimum ENABLE low pulse width required to unlatch fault condition.

Note 2: The delay from IOUT falling below the zero-current threshold until FAULT is latched low and VOUT is disabled.

Note 3: The time from an output overcurrent or short-circuit condition until the output goes into current limit.

Note 4: The time from VOUT falling until FAULT is asserted low. FAULT is not latched for Power-Not-Good condition.

Note 5: When the device goes into thermal shutdown, the output is disabled and FAULT is latched low.

Typical Operating Characteristics

(VIN = -48V, AGND = DGND = 0, UVLO = open circuit, VENABLE = +3.3V, RLOAD = 1.8kΩ, TA = +25°C, unless otherwise noted.)

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

1.8

NO LOAD

1.6

1.4

1.2

1.0

SUPPLY CURRENT

vs. AMBIENT TEMPERATURE

1.540

NO LOAD

1.535

1.530

1.525

1.520

1.515

ON-RESISTANCE

vs. AMBIENT TEMPERATURE

3.0

ILOAD = 150mA

2.8

2.6

2.4

2.2

2.0

1.8

0.8

-65 -55 -45 -35 -25 -15

SUPPLY VOLTAGE (V)

1.510

-40 -15

10

35

60

85

TEMPERATURE (°C)

1.6

-40 -15

10

35

60

85

TEMPERATURE (°C)

_______________________________________________________________________________________ 3

Share Link: