MIC2584 Datasheet, PDF (5/28 Pages) Micrel Semiconductor – Dual-Channel Hot Swap Controller/Sequencer

MIC2584/2585
Pin Number
MIC2584
N/A
Pin Number
MIC2585
4, 21
N/A
6, 19
N/A
16, 17
Pin Name
OV2, OV1
DIS2, DIS1
PG2, PG1
Pin Function
Micrel
Overvoltage Detect Inputs: Whenever the threshold voltage (V_OV1, V_OV2) on
either input is exceeded, the circuit-breaker is tripped while /FAULT is
asserted and the GATE1 and GATE2 outputs are immediately brought low.
Discharge Outputs: When the ON pin receives a logic low signal
(deasserts), these pins provide a low impedance path to ground in order to
allow the discharging of any load capacitance. The DIS pins assert low if
TRK is less than 0.3V once ON has been deasserted. The typical DIS pin
resistance varies between 50Ω to 170Ω dependent upon input supply
voltage (see Electrical Table). An external resistor is required. See “Fast
Output Discharge for Capacitive Load” section in the Applications Informa-
tion for more detail.
Power-Good Outputs: Active-HIGH, weak pull-up to VCC1 or open-drain.
These outputs are asserted whenever the FB1 and FB2 thresholds are
exceeded and will not be asserted when FB1 and FB2 are below their
thresholds.
March 2005
5
MIC2584/2585