MIC2588-2YM Micrel Inc, MIC2588-2YM Datasheet - Page 13
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MIC2588-2YM
Manufacturer Part Number
MIC2588-2YM
Description
Negative Voltage Hot-swap Controller -
Manufacturer
Micrel Inc
Type
Hot-Swap Controllerr
Datasheet
1.MIC2588-1YM_TR.pdf
(21 pages)
Specifications of MIC2588-2YM
Applications
General Purpose
Internal Switch(s)
No
Current Limit
Adjustable
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)
Family Name
MIC2588
Package Type
SOIC
Operating Supply Voltage (min)
-19V
Operating Supply Voltage (max)
-80V
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Operating Temperature Classification
Industrial
Product Depth (mm)
3.94mm
Product Height (mm)
1.48mm
Product Length (mm)
4.93mm
Mounting
Surface Mount
Pin Count
8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MIC2588-2YM
Manufacturer:
MICREL
Quantity:
61
Part Number:
MIC2588-2YM
Manufacturer:
MICREL
Quantity:
20 000
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