MIC2586 MICREL [Micrel Semiconductor], MIC2586 Datasheet - Page 5

• Manufacturer Part Number: MIC2586
• Description: Single-Channel, Positive High-Voltage Hot Swap Controller/Sequencer
• Manufacturer: MICREL [Micrel Semiconductor]

Micrel
October 2004
Pin Number
13
14
Pin Name
SENSE
VCC
Pin Function
Circuit Breaker Sense Input: This pin is the (-) Kelvin sense connection for the
output supply rail. A low-valued resistor (R
pin sets the circuit breaker’s current limit trip point.
detector circuit is enabled (as well as the current limit timer), while the FB pin
voltage remains higher than 1V, the voltage across the sense resistor (V
V
into the load. When the FB pin voltage is less than ≅0.8V, the voltage across the
sense resistor decreases linearly to a minimum of 12mV (typical) when the FB
pin voltage is at 0V.
To disable the circuit breaker (and defeat all current limit protections), the
SENSE pin and the VCC pin can be tied together.
Positive Supply Voltage Input: This pin is the (+) Kelvin sense connection for the
output supply rail. The nominal operating voltage range for the MIC2586 and the
MIC2586R is +10V to +80V, and VCC can withstand input transients up to
+100V.
supply voltage to the MIC2586/MIC2586R is less than the V
SENSE
) will be regulated to V
An undervoltage lockout circuit holds the GATE pin low whenever the
5
TRIP
(47mV, typically) to maintain a constant current
SENSE
) between this pin and the VCC
When the current limit
UVH
threshold.
MIC2586/MIC2586R
CC
[phone]
-
M9999-102204