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ISL6174 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 ISL6174
部品説明 Dual Low Voltage Circuit Breaker
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 



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ISL6174 Datasheet, ISL6174 PDF,ピン配置, 機能
®
Data Sheet
December 19, 2008
ISL6174
www.DataSheet4U.com
FN6830.0
Dual Low Voltage Circuit Breaker
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 where a circuit
breaker response to an over current event is preferred.
It features a charge pump for driving external N-Channel
MOSFETs, accurate programmable circuit breaker current
thresholds and delay output undervoltage monitoring and
reporting and adjustable soft-start.
The circuit breaker current level (ICB) for each rail is set by
two external resistors, and for each rail a delay (tCB) is set by
an external capacitor on the TCB pin. After tCB has expired,
the IC then quickly pulls down the associated GATE(s)
output turning off its external FET(s).
Ordering Information
PART NUMBER PART
(Note)
MARKING
TEMP.
RANGE
(°C)
PACKAGE PKG.
(Pb-Free) DWG. #
ISL6174IRZ* ISL6174 IRZ -40 to +85 28 Ld 5x5 QFN L28.5x5
ISL617XEVAL1Z Evaluation Platform
*Add “-T” suffix for tape and reel. Please refer to TB347 for details on
reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ
special Pb-free material sets, molding compounds/die attach materials,
and 100% matte tin plate plus anneal (e3 termination finish, which is
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.
Pinout
ISL6174
(28 LD QFN)
TOP VIEW
28 27 26 25 24 23 22
SNS1 1
21 SNS2
VO1 2
20 VO2
SS1 3
19 SS2
GT1 4
18 GT2
FLT1 5
17 FLT2
PG1 6
16 PG2
TCB1 7
15 TCB2
8 9 10 11 12 13 14
Features
• Fast Circuit Breaker Quickly Responds to Overcurrent
Fault Conditions
• Less than 1µs Response Time to Dead Short
• Programmable Circuit Breaker Level and Delay
• Two Levels of Overcurrent Detection Provide Fast
Response to Varying Fault Conditions
• Overcurrent Circuit Breaker and Fault Isolation Functions
• Adjustable Circuit Breaker Threshold as Low as 20mV
• Adjustable Voltage Ramp-up for In-Rush Protection
During Turn-On
• Rail Independent Control, Monitoring and Reporting I/O
• Dual Supply Hot Swap Power Distribution Control to <1V
• Charge Pump Allows the Use of N-Channel MOSFETs
• 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
• Pb-Free (RoHS Compliant)
Applications
• Power Supply Sequencing, Distribution and Control
• Hot Swap / Electronic Circuit Breaker Circuits
V1(IN)
RSNS1
V1(OUT)
EN1 EN2 VS1 SNS1 GT1 VO1
UV1
BIAS
CPQ+
PG1
FLT1
SS1
CPQ-
CPVDD
ISL6174
OCREF
SS2
FLT2
PGND
PG2
GND
UV2
TCB1 TCB2 VS2 SNS2 GT2 VO2
V2(IN)
RSNS2
FIGURE 1. TYPICAL APPLICATION
V2(OUT)
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 Intersil Americas Inc. 2008. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

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