廬
ISL6160
Data Sheet
July 2004
FN9028.1
InfiniBand +12V Bulk and +5V Auxiliary
Power Controller
The ISL6160 is designed to address the unique power
requirements of the InfiniBand (IB) industry initiative
providing independent power control of both the VB(bulk)
(+12V) and the VA(auxiliary) (+5V) power rails for a single
port. This device can be implemented in both IB Class I (non
isolated) and Class II (isolated) Power Topology applications.
The ISL6160, along with an N-Channel power MOSFET and
a minimal number of passive components provides soft
starting ramps of both the VB and VA voltages for an IB
module. It also provides accurate and consistent current
regulated outputs for a determined period of time before
latch-off in the presence of overcurrent (OC) conditions.
In addition the ISL6160 provides the enable signal to the on
module DC-DC converter either upon module insertion to
chassis or from a wake event request.
See Figure 1 for typical application usage.
Features
鈥?VB Programmable Overcurrent Protection Regulation
Level for 25W and 50W Ports
鈥?Internal Charge Pump Allows the Use of an N-Channel
MOSFET for VB Control
鈥?VB Adjustable Turn-On Ramp
鈥?Soft Start Overcurrent Protection During Turn-On
鈥?Two Levels of VB Overcurrent Detection and Protection
鈥?VA and VB Undervoltage Lock-Outs
鈥?0.125鈩?Integrated Power N-Channel MOSFET VA Switch
鈥?Accurate VA Current Sensing and Limiting (1A)
鈥?Timed Current Regulation Period (VB Optional)
鈥?VA Controlled Turn-On Ramp Time
鈥?1碌s Response Time to VB Secondary Rail Dead Short
鈥?/div>
Pb-free available
Ordering Information
PART NUMBER
ISL6160CB
ISL6160CBZA
(See Note)
ISL6160EVAL2
TEMP. RANGE
(
o
C)
-40 to 85
-40 to 85
PACKAGE
14 Ld SOIC
14 Ld SOIC
(Pb-free)
PKG.
DWG. #
M14.15
M14.15
Applications
鈥?InfiniBand VB and VA Voltage Control
鈥?-48V and 5V Telecom
Pinout
ISL6160
(14 LEAD SOIC)
TOP VIEW
IB Class I Power Topology Evaluation Platform
*Add 鈥?T鈥?suffix to part number for tape and reel packaging.
NOTE: Intersil Pb-free products employ special Pb-free material sets; molding
compounds/die attach materials and 100% matte tin plate termination finish, which
is 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-020B.
ISET
ISEN
GATE
1
2
3
4
5
14 VB_ON
13 DC-DC ENABLE
12 CTIM
11 VB_IN
10 VA_FLTn
9
8
VA_OUT
NC
VB SECONDARY RAIL TO DC-DC
VB_Ret
VA_Ret
DC-DC EN
ISET
ISEN
GATE
VB_ON
CTIM
TO DC-DC
VBxEN_L
VA_IN 6
VA_ENn
7
LOCAL PWR EN
(OPT.)
VA_FLTn
VB_IN
VB_Ret
+
VB(ulk)
VA_Ret
VA_ENn
VA_IN
VA_Out
(OPT.)
+ VA(ux)
FIGURE 1. TYPICAL APPLICATION USAGE
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright 漏 Intersil Americas Inc. 2001, 2004. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
INTERSIL
1
2
3
4
5
6
7
8
9
10
11
