MIC2582(2003) データシートの表示（PDF） - Micrel

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MIC2582
(Rev.:2003)

Single Channel Hot Swap Controllers

Micrel 

MIC2582/MIC2583

Symbol

Parameter

Condition

VFB

Power-Good Threshold Voltage

FB rising

FB falling

VFBHYS

VOL

FB Hysteresis

/POR, /FAULT, PWRGD

Output Voltage

(/FAULT, PWRGD MIC2583/83R only)

IOUT = 1mA

RDIS

Output Discharge Resistance

(MIC2583/83R only)

AC Parameters (Note 4)

tOCFAST

Fast Overcurrent SENSE to GATE

Low Trip Time

VCC = 5V

VCC – VSENSE = 100mV

CGATE = 10nF

Figure 2

tOCSLOW

Slow Overcurrent SENSE to GATE

Low Trip Time

VCC = 5V, VCC – VSENSE = 50mV

CFILTER = 0

Figure 2

tONDLY

tFBDLY

ON Delay Filter

FB Delay Filter

Note 1.

Note 2.

Note 3.

Note 4.

Exceeding the absolute maximum rating may damage the device.

The device is not guaranteed to function outside its operating rating.

Specification for packaged product only.

Not a tested parameter, guaranteed by design.

Timing Diagrams

(VCC – VSENSE)

GATE

50mV

VTRIPFAST

tOCSLOW

1V

1V

Figure 2. Current Limit Response

Micrel

Min Typ Max Unit

1.19 1.24 1.29

V

1.15 1.20 1.25

V

40

mV

0.4

V

500 1000 Ω

1

µs

5

µs

20

µs

20

µs

tOCFAST

FB

/POR

1.2V

tPOR

1.5V

/PWRGD

1.5V

Figure 3. Power-On Reset Response

MIC2582/MIC2583

VCC

VUVLO

tSTART

1V

VGATE

Figure 4. Power-On Start-Up Delay Timing

6

April 2003

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