MIC2582/3

DS20006573A-page 12

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2021 Microchip Technology Inc.

Note:

Please refer to the Start-Up Cycle section and Figure 1-3 for a detailed explanation of the start-up and oper-

ation sequence of the MIC2582 pins shown in Table 3-1.

7

15

SENSE

sets the current-limit threshold. Whenever the voltage across the

immediately pulled low. If the voltage across the sense resistor

point due to fast, high amplitude power supply faults, then the

GATE pin is immediately brought low without delay. To disable the

Please contact Microchip for availability of other options.

8

16

Positive Supply input: 2.3V to 13.2V. The GATE pin is held low by

SENSE pins.

—

2

PWRGD

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

—

5

Current-Limit Response timer: A capacitor connected to this pin

must last to signal a fault condition and trip the circuit breaker. If no

—

11

/FAULT

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 lock-

out condition exists. The/FAULT pin requires a pull-up resistor

—

13

DIS

Discharge output: When the MIC2583/3R is turned off, a 500Ω

internal resistor at this output allows the discharging of any load

capacitance to ground.

—

6, 9, 10

NC

No internal connection.

TABLE 3-1:

PIN FUNCTION TABLE (CONTINUED)

Pin Number

SOIC-8

Pin Number

QSOP-16

Pin Name

Description