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ISL6173_06 Datasheet

  • ISL6173_06

  • Dual Low Voltage Hot Swap Controller

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  • INTERSIL   INTERSIL

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ISL6173
Data Sheet
January 3, 2006
FN9186.3
Dual Low Voltage Hot Swap Controller
This IC targets dual voltage hot swap applications across the
+2.5V to +3.3V (nominal) bias supply voltage range with a
second lower voltage rail down to less than 1V. It features a
charge pump for driving external N-Channel MOSFETs,
regulated current protection and duration, output undervoltage
monitoring and reporting, optional latch-off or retry response,
and adjustable soft-start.
The current regulation level (CR) for each rail is set by two
external resistors and each CR duration is set by an external
capacitor on the TIM pin. After the CR duration has expired
the IC then quickly pulls down the associated GATE(s)
output turning off its external FET(s). The ISL6173 offers a
latched output or indefinite auto retry mode of operation.
Features
鈥?Fast Current Regulation amplifier quickly responds to
overcurrent fault conditions
鈥?Less than 1碌s response Time to Dead Short
鈥?Programmable Current Regulation Level and Duration
鈥?Two Levels of Overcurrent Detection Provide Fast
Response to Varying Fault Conditions
鈥?Overcurrent Circuit Breaker and Fault Isolation functions
鈥?Adjustable Current Regulation Threshold as low as 20mV
鈥?Selectable Latch-off or Auto Retry Response to Fault
conditions
鈥?Adjustable voltage ramp-up for In-rush Protection During
Turn-On
鈥?Rail Independent Control, Monitoring and Reporting I/O
鈥?Dual Supply Hot Swap Power Distribution Control to <1V
鈥?Charge Pump Allows the use of N-Channel MOSFETs
鈥?QFN Package:
- Compliant to JEDEC PUB95 MO-220
QFN - Quad Flat No Leads - Package Outline
- Near Chip Scale Package footprint, which improves
PCB efficiency and has a thinner profile
鈥?Pb-Free Plus Anneal Available (RoHS Compliant)
Ordering Information
PART NUMBER
(Note)
ISL6173DRZA
PART
MARKING
TEMP.
RANGE
(擄C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL6173DRZ 0 to +85 28 Ld 5x5 QFN L28.5x5
ISL6173DRZA-T ISL6173DRZ 0 to +85 28 Ld 5x5 QFN L28.5x5
Tape & Reel
ISL6173EVAL3
Evaluation Platform
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are RoHS compliant and
compatible with both SnPb and Pb-free soldering operations. Intersil
Pb-free products are MSL classified at Pb-free peak reflow
temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
Applications
鈥?Power Supply Sequencing, Distribution and Control
鈥?Hot Swap/Electronic Breaker Circuits
V1(in)
Rset1
Rsns1
V1(out)
Pinout
ISL6173 (28 LD QFN)
TOP VIEW
OCREF
EN2
UV1
EN1
UV2
23
VS1
VS2
22
21
20
19
18
17
16
15
8
RTR/LTCH
9
GND
10
PGND
11
CPQ-
12
BIAS
13
CPQ+
14
CPVDD
SNS2
VO2
SS2
GT2
FLT2
PG2
CT2
28
SNS1
VO1
SS1
GT1
FLT1
PG1
CT1
1
2
3
4
5
6
7
27
26
25
24
EN1 EN2 VS1
RTR/LTCH
BIAS
CPQ+
SNS1 GT1 VO1
UV1
PG1
FLT1
SS1
CPQ-
OCREF
ISL6173
CPVDD
SS2
FLT2
PG2
PGND
GND
UV2
CT1 CT2 VS2
SNS2 GT2 VO2
Rset2
V2(in)
V2(OUT)
Rsns2
FIGURE 1. TYPICAL APPLICATION
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright 漏 Intersil Americas Inc. 2004-2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

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