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MIC2596-1BTS-TR

Description
IC SWITCH HOT SWAP DUAL 20-TSSOP
Categorysemiconductor    Power management   
File Size59KB,12 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
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MIC2596-1BTS-TR Overview

IC SWITCH HOT SWAP DUAL 20-TSSOP

MIC2596-1BTS-TR Parametric

Parameter NameAttribute value
typeheat exchange controller
Number of channels2
internal switchyes
application-48V
characteristicAutomatic retry, thermal limit, UVLO
Programmable featurescircuit breaker, fault timeout
Voltage - Power-70 V ~ -15 V
Current - Output (maximum)-
Operating temperature-40°C ~ 85°C
Current - Power3.3mA
Installation typesurface mount
Package/casing20-TSSOP (0.173", 4.40mm wide)
Supplier device packaging20-TSSOP
Function pinCGATE1,CGATE2,COL1,COL2,CTIMER1,CTIMER2,FAULT1#,FAULT2#,ILIMIT1,ILIMIT2,ON1,ON2
MIC2596/2597
Micrel
MIC2596/2597
Dual Channel Negative Voltage Hot Swap Controllers
Final Information
General Description
The MIC2596 and MIC2597 are dual channel negative volt-
age hot swap controllers designed to facilitate safe PC board
insertion into and removal from live backplanes. To minimize
external components, each channel of the MIC2596/MIC2597
has an integrated high voltage power MOSFET. Built-in
current sensing in each channel provides inrush current
limiting, by regulating the channel’s output current to a user-
settable maximum. Current sensing also provides program-
mable overcurrent and open-load detection. A channel will
be turned off if it experiences overload or no-load conditions
lasting longer than programmable intervals. Foldback cur-
rent limiting holds power dissipation of the internal MOSFETs
at safe levels during overloads, and very fast shutdown
response to faults ensures protection for both system power
supplies and the load. The MIC2596 will automatically
attempt to restart into an overcurrent fault until the fault is
cleared, while the MIC2597 will latch the output in the off state
until it is reset by external action. A logic-compatible signal
is provided on each channel to indicate overcurrent or under-
current fault conditions.
Features
Allows safe hot-swap in –48V systems
Operates to –70V
Programmable inrush current limiting
Two thermally isolated channels
Overcurrent fault sensing and protection
Nuisance trip prevention circuitry
Open-load detection
Logic compatible Enable and Fault signals
Separate analog and logic ground pins support large
system ground differentials (±8V)
Applications
• Central Office Switching
• –48V Power Distribution
Typical Application
C
L
6
VDDA
+3.3V
R
PU
V
CC
FAULT#_CH1
FAULT#_CH2
CONTROLLER
ON/OFF_CH1
ON/OFF_CH2
GND
15
20
11
5
VCLAMP
OUT1
ILIMIT
19
V
OUT1
R
PU
FAULT#1
FAULT#2
ON1
ON2
VDDL
CTIMER1
CTIMER2
MIC2596
2
CGATE1
17
C
L
C1
R1
1
10
OUT2
CGATE2
12
V
OUT2
3
14
8
ILIMIT2
4
9
C2
C3
C5
COL1
C4
COL2
7
VEE
16
R2
C6
V
IN
–48V
System-Controlled Hot Swap
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com
April 2001
1
MIC2596/2597

MIC2596-1BTS-TR Related Products

MIC2596-1BTS-TR MIC2596-2BTS MIC2596-2BTS TR MIC2597-1BTS MIC2597-2BTS MIC2597-1BTS TR MIC2597-2BTS TR MIC2596-1BTS MIC2596-1BTS TR MIC2597-1BTS-TR
Description IC SWITCH HOT SWAP DUAL 20-TSSOP IC switch hot swap dual 20-tssop IC switch hot swap dual 20-tssop IC SW telecom hot swap dual IC SW telecom hot swap dual IC SW telecom hot swap dual IC SW telecom hot swap dual IC switch hot swap dual 20-tssop IC switch hot swap dual 20-tssop IC SW TELECOM HOT SWAP DUAL
Number of channels 2 2 - 2 2 - - 2 - 2
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