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

Pin Name

PWRGD

8-pin SOIC

N/A

CFILTER

N/A

/FAULT

N/A

DIS

N/A

NC

N/A

16-pin QSOP

2

5

11

13

6,9,10

Micrel

Pin Function

Power-Good Output: Open drain N-channel device, Active High. When the

voltage at the FB pin is lower than 1.24V, PWRGD output is held low. When

the voltage at the FB pin exceeds 1.24V, then PWRGD is asserted immediately.

The PWRGD pin requires a pull-up resistor (10kΩ minimum) to VCC.

Current Limit Response Timer: A capacitor connected to this pin defines the

period of time (tOCSLOW) in which an overcurrent event must last to signal a

fault condition and trip the circuit breaker. If no capacitor is connected, then

tOCSLOW defaults to 5µs.

Circuit Breaker Fault Status Output: Open drain N-channel device, Active

Low. The /FAULT pin is asserted when the circuit breaker trips due to an

overcurrent condition or when an undervoltage lockout condition exists. The

/FAULT pin requires a pull-up resistor (10kΩ minimum) to VCC.

Discharge Output: When the MIC2583/83R is turned off, a 500Ω internal

resistor at this output allows the discharging of any load capacitance to ground.

No internal connection.

MIC2582/MIC2583

4

April 2003

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