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PDF FN9028 Data sheet ( Hoja de datos )
| Número de pieza | FN9028 | |
| Descripción | InfiniBand +12V Bulk and +5V Auxiliary Power Controller | |
| Fabricantes | Intersil Corporation | |
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TM
Data Sheet
ISL6160
August 2001
File Number 9028
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.
Ordering Information
TEMP. RANGE
PART NUMBER
(oC)
PACKAGE PKG. NO.
ISL6160IB
ISL6160IB-T
ISL6160EVAL2
-40 to 85 14 Ld SOIC M14.15
-40 to 85 Tape & Reel M14.15
IB Class I Power Topology Evaluation Platform
VB SECONDARY RAIL TO DC-DC
ISET
ISEN
GATE
DC-DC EN
VB_ON
CTIM
TO DC-DC
VBxEN_L
LOCAL PWR EN
(OPT.)
+
VB(ulk)
VB_IN
VB_Ret
VA_Ret
VA_FLTn
VA_ENn
VA_IN
VA_Out
(OPT.)
+ VA(ux)
FIGURE 1. TYPICAL APPLICATION USAGE
Features
• VB Programmable Overcurrent Protection Regulation
Level for 25W and 50W Ports
• Internal Charge Pump Allows the Use of an N-Channel
MOSFET for VB Control
• VB Adjustable Turn-On Ramp
• Soft Start Overcurrent Protection During Turn-On
• Two Levels of VB Overcurrent Detection and Protection
• VA and VB Undervoltage Lock-Outs
• 0.125Ω Integrated Power N-Channel MOSFET VA Switch
• Accurate VA Current Sensing and Limiting (1A)
• Timed Current Regulation Period (VB Optional)
• VA Controlled Turn-On Ramp Time
• 1µs Response Time to VB Secondary Rail Dead Short
Applications
• InfiniBand VB and VA Voltage Control
• -48V and 5V Telecom
Pinout
ISL6160
(14 LEAD SOIC)
TOP VIEW
ISET 1
ISEN 2
GATE 3
VB_Ret 4
VA_Ret 5
VA_IN 6
VA_ENn 7
14 VB_ON
13 DC-DC ENABLE
12 CTIM
11 VB_IN
10 VA_FLTn
9 VA_OUT
8 NC
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 trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2001, All Rights Reserved
1 page  
ISL6160
Electrical Specifications Nominal VB = +12V, VA = +5V, TA = TJ = -40oC - 85oC, Unless Otherwise Specified (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
UNIT
MIN TYP MAX S
CTIM PARAMETERS
CTIM Charging Current
CTIM Fault Pull-Up Current
Current Limit Time-Out Threshold Voltage
+5V AUXILIARY SUPPLY CONTROL
VA Integrated Switch On Resistance
Disabled Output Voltage
VOUT Rising Rate
Slow VOUT turn-off rate
Fast VOUT turn-off rate
CURRENT CONTROL
CTIM_ichg0
CTIM_ichg6
CTIM_Vth
VCTIM = 0V
VCTIM = 6V
CTIM Voltage
rDS(ON)
VOUT_DIS
t_vout_rt
Toff_svout
Toff_fvout
VIN = 5V, IOUT = 0.4A, TA = TJ = 25oC
TA = TJ = 85oC
VIN = 5V, Switch Disabled, No Load
RL = 10Ω, CL = 0.1µF, 10%-90%
RL = 10Ω, CL = 0.1µF, 90%-10%
RL = 10Ω, CL = 0.1µF, 90%-10%
16 20 23 µA
5 8 11 mA
1.3 1.8 2.3 V
- 0.125 0.150 Ω
- 0.160 0.200 Ω
- 300 450 mV
- 8 - V/mS
- 8 - V/mS
- 4 - V/uS
Current Limit
Ilim
0.75 1 1.25 A
OC Regulation Settling Time
Severe OC Regulation Settling Time
Over Current Latch-off Time
I/O PARAMETERS
Tsett_ocr
Tsett_socr
tOC_loff
RL= 5Ω, CL= 0.1µF to Within 10% of CR
RL< 1Ω, CL= 0.1µF to Within 10% of CR
- 1.5 - ms
-
100 -
µs
- 12
ms
Fault Output Voltage
ENABLE High Threshold
ENABLE Low Threshold
ENABLE Input Current
BIAS PARAMETERS
Enabled VA_Iin Current
Disabled VA_Iin Current
Undervoltage Lockout Threshold
UV Hysteresis
Vfault_hi
Ven_vih
Ven_vil
Ien_i
IOUT = 10mA
VIN = 5.5V
VIN = 4.5V
ENABLE = 0V to 5V, VIN = 5V, TJ > 25oC
Ien_VA
Idis_VA
VUVLO
UVHYS
Switches Closed, VA_Out = OPEN, TJ >0oC
Switches Open, VA_Out = OPEN
VIN Rising, Switch Enabled
- - 0.3 V
2.0 - - V
- - 0.8 V
-0.5 - 0.5 µA
- 120 200 µA
- 1 5 µA
1.7 2.25 2.5 V
50 100 - mV
ISL6160 Description and Operation
The ISL6160 is the first power supply sequencer for the
emerging InfiniBand module (IM) hot swap application. This IC
controls both the +12V VB(ulk) and +5V VA(ux) supplies
providing soft start during hot insertion and overcurrent (OC)
protection during operation.
For VB control and protection, the ISL6160 features include an
accurate current detecting comparator, current limiting for the
range of both 25W and 50W capable power ports, a current
regulated time delay to latch off and soft start turn-on ramp.
These features are all programmable with a minimum of
external passive components. The ISL6160 also includes
severe overcurrent protection that immediately shuts down the
MOSFET switch should there be a shorted IM load.
The VB_ON pin provides on-off control of the external VB
switch once VB_IN > 9V. Driving this pin high causes the gate
pin to charge the external gate capacitor with a 10uA current
setting the soft start ramp rate. Large capacitive loads can thus
be safely turned on with no inrush current spiking nor disruption
of the voltage supply rail.
The VB load current passes through an external current sense
resistor. When the voltage across the sense resistor exceeds
the user programmed ISET voltage threshold, the controller
enters current regulation (CR). The regulated current level is
fixed by the RISET and RSENSE resistors. See Table 1 for
RISET programming resistor value and the resulting nominal
CR threshold voltage.
TABLE 1.
RISET
RESISTOR
NOMINAL
OC Vth
NOMINAL REGULATION LEVEL
(RSENSE = 0.020Ω)
CURRENT (A) POWER (W)
1.0kΩ
2.8kΩ
20mV
56mV
1
2.8
12
33.6
3.48kΩ
70mV
3.5
42
5.6kΩ
112mV
5.6
67.2
NOTE: Nominal Vth = RISET x 20µA.
During CR, the CTIM pin starts charging the time-out capacitor
with a 20µA current source and the controller enters the delay
time to latch-off period. This feature allows transient currents
that exceed the designed limit to pass without immediately
5
5 Page 
ISL6160
Small Outline Plastic Packages (SOIC)
N
INDEX
AREA
E
-B-
H
0.25(0.010) M B M
123
-A-
D
SEATING PLANE
A
L
h x 45o
-C-
e A1
B
0.25(0.010) M C A M B S
µα
0.10(0.004)
C
NOTES:
1. Symbols are defined in the “MO Series Symbol List” in Section 2.2 of
Publication Number 95.
2. Dimensioning and tolerancing per ANSI Y14.5M-1982.
3. Dimension “D” does not include mold flash, protrusions or gate burrs.
Mold flash, protrusion and gate burrs shall not exceed 0.15mm (0.006
inch) per side.
4. Dimension “E” does not include interlead flash or protrusions. Interlead
flash and protrusions shall not exceed 0.25mm (0.010 inch) per side.
5. The chamfer on the body is optional. If it is not present, a visual index
feature must be located within the crosshatched area.
6. “L” is the length of terminal for soldering to a substrate.
7. “N” is the number of terminal positions.
8. Terminal numbers are shown for reference only.
9. The lead width “B”, as measured 0.36mm (0.014 inch) or greater
above the seating plane, shall not exceed a maximum value of
0.61mm (0.024 inch).
10. Controlling dimension: MILLIMETER. Converted inch dimensions
are not necessarily exact.
M14.15 (JEDEC MS-012-AB ISSUE C)
14 LEAD NARROW BODY SMALL OUTLINE PLASTIC
PACKAGE
INCHES
MILLIMETERS
SYMBOL MIN MAX MIN MAX NOTES
A
0.0532 0.0688 1.35
1.75
-
A1 0.0040 0.0098 0.10 0.25
-
B 0.013 0.020 0.33 0.51
9
C
0.0075 0.0098 0.19
0.25
-
D
0.3367 0.3444 8.55
8.75
3
E
0.1497 0.1574 3.80
4.00
4
e 0.050 BSC 1.27 BSC -
H
0.2284 0.2440 5.80
6.20
-
h
0.0099 0.0196 0.25
0.50
5
L 0.016 0.050 0.40 1.27 6
N 14
14 7
α
0o 8o 0o 8o
-
Rev. 0 12/93
All Intersil products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice.
Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable.
However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its
use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
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NORTH AMERICA
Intersil Corporation
7585 Irvine Center Drive
Suite 100
Irvine, CA 92618
TEL: (949) 341-7000
FAX: (949) 341-7123
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Palm Bay, FL 32905
TEL: (321) 724-7000
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CH-1009 Pully
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TEL: +852 2723 6339
FAX: +852 2730 1433
11
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| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet FN9028.PDF ] | |
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