MIC2588-1BM TR Micrel Inc, MIC2588-1BM TR Datasheet - Page 13
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MIC2588-1BM TR
Manufacturer Part Number
MIC2588-1BM TR
Description
IC CTRLR HOT SWAP NEG HV 8-SOIC
Manufacturer
Micrel Inc
Type
Hot-Swap Controllerr
Datasheet
1.MIC2588-1YM_TR.pdf
(21 pages)
Specifications of MIC2588-1BM TR
Applications
General Purpose
Internal Switch(s)
No
Voltage - Supply
-19 V ~ -80 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.154", 3.90mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
MIC2588-1BMTR
MIC2588-1BMTR
MIC2588-1BMTR
MIC2588/MIC2594
the OFF pin falls below its V
turns off due to a fault. Should either event occur, the GATE
pin is immediately pulled low and will remain low until the
ON pin once again exceeds its V
turn-on and turn-off points are set using the resistor divider
R1, R2, and R3 as shown in the “Typical Application.” The
equations to establish the trip points are shown below. In the
following example, the circuit’s nominal ON threshold is set to
V
V
Given V
two resistor values can be readily found. A suggested value
for R3 is that which will provide a minimum of 100µA of cur-
rent through the voltage divider chain at V
yields the following as a starting point:
The closest standard 1% value for R3 = 12.4kΩ.
solving for R2 and R1 yields:
M9999-083005
ON
OFF
= 40V and the circuit’s nominal OFF threshold is
= 35V.
V
V
R3 =
OFF
ON
OFF
, V
= V
V
= V
OFFL
ON
100 A
ONH
OFFL
, and any one resistor value, the remaining
(typ)
(typ)
(typ)
12.23k
R1 R2 R3
OFFL
R1 R2 R3
R2 R3
R3
ONH
threshold value, or the part
threshold. The circuit’s
DD
= V
OFF
. This
13
The closest standard 1% value for R2 = 1.78kΩ.
The closest standard 1% value for R1 = 392kΩ.
Using standard 1% resistor values, the circuit’s nominal
ON and OFF thresholds are:
Good general engineering design practices must consider
the tolerances associated with these parameters, including
but not limited to, power supply tolerance, undervoltgae
and overvoltage tolerances, and the tolerances of the
external passive components.
V
V
ON
OFF
R2 = R3
R2 = 12.4k
R2 = 1.771k
R1= R3
R1= 12.4k
R1= 391.380k
= 40.1V
= 35V
V
ON
V
V
OFF
1.223V
ON
40V – 1.223V
–1.223V
35V
40V
1.223V
– 1
– 1
– R2
– 1.78kΩ
September 2005
Micrel