Analog Devices ADM1014JRU Datasheet

=
Dual PCI Hot-Plug
TM
Controller
Preliminary Technical Data
3.3V Cmos
PAUXONA
+3.3V Aux
FAUXA
OCSET
PWRONA
FLTNA
GND
PAUXONB
+3.3V Aux
FAUXB
PWRONB
FLTNB
Input
30
30
Q
RESET
3.3V Cmos Output
5
AUXINA
6
FAULT LATCH
SET
Q
AUXINA
3.3VAUX
100µA
VOCSET
POWER-ON
RESET
COMMON TO BOTH CHANNELS
LOW WHEN
AUXINA < 2.5V
CIRCUIT OPERATES FROM 3.3VAUX AND +12V POWER SUPPLY
CHANNEL A
3
Q
RESET
FAULT
4
32
27
LATCH
SET
Q
12VIN
A
5V
REGULATOR
12VIN
A
12V IN
POWER-ON
RESET
COMMON TO BOTH CHANNELS
LOW WHEN
12VINA <
10V
CHANNEL B
15
17
16
( IDENTICAL TO CHANNEL A )
OVERCURRENT AND
UNDERVOLTAGE
COMPARATORS
FOR +3.3VAUX
CHANNEL A
CIRCUIT OPERATES FROM 3.3VAUX POWER SUPPLY
OVERCURRENT AND
UNDERVOLTAGE
COMPARATORS
FOR +5V
OVERCURRENT AND
UNDERVOLTAGE
COMPARATORS
FOR +3.3V
OVERCURRENT AND
UNDERVOLTAGE
COMPARATORS
COMBINING
LOGIC
FOR +12V
OVERCURRENT
COMPARATOR
FOR -12V
G
P-CHANNEL
G
G
S
MOSFET
D
S
P-CHANNEL
MOSFET
D
S
N-CHANNEL
MOSFET
D
ADM1014
7
AUXGA
31
AUXINA
8
AUXOA
EXTERNAL
N-CHANNEL
POWER
MOSFETS
+5V
+3.3V
IN
3V5VGA
33
5VSA
34
35
36
2
38
1
14
26
13
25
24
23
22
21
12
28
11
18
20
19
37
9
29
10
5VISENA
3VSA
3VISENA
12VGA
12VIN
A
12VOA
-12VGA
-12VINA
-12VOA
AUXGB AUXINB AUXOB
3V5VGB
5VSB
5VISENB
3VSB
3VISENB
12VGB 12VINB
12VOB
-12VGB
-12VINB
-12VOB
RSENSE3A
+5V
OUTA
EXTERNAL
N-CHANNEL
MOSFETS
+5V
IN
RSENSE3B
+5V
OUTA
RSENSE5A
POWER
RSENSE5B
IN
+3.3V OUTA
+3.3V
IN
+3.3V OUTA

FUNCTIONAL BLOCK DIAGRAM

REV. PrN 1/02
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices 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 Analog Devices.
TM
Hot Plug is a trademark of Core International, Inc.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 2002
ADM1014–SPECIFICATIONS
FEATURES Controls Two PCI Slots Controls all Four PCI Supplies, +3.3V, +5V, +12V,
-12V, plus 3.3V auxiliary supply Internal MOSFET Switches for +3.3V AUX, +12V and –12V outputs Adjustable Overcurrent Protection for all Outputs Undervoltage Protection on +3.3V, +5V, +12V and +3.3V AUX Supplies Open-Drain Fault Output with Adjustable Delay Logic Control of Outputs Adjustable Soft-start
APPLICATIONS Compact PCI PCI Hot-Plug
GENERAL DESCRIPTION
TM
The ADM1014 is a dual PCI voltage bus controller that allows hot-plugging of adapter cards into and out of an active or pas­sive backplane. The device requires only four external power MOSFETs and a few discrete components for a complete power-control solution for two PCI slots.
The ADM1014 operates from a +12V and +3.3V AUX supply and controls five independent supplies (+3.3V, +3.3VAUX, +5V, +12V and –12V) on two separate channels (A and B). The power switches for the +3.3VAUX, +12V and –12V supplies are integrated onto the chip, and internal current limiting is provided. For the +3.3V and +5V supplies, the device drives external, N-channel, power MOSFETs, and provides overcurrent protection by sensing the voltage drop across external current-sense resistors.
The current limits for all 10 supplies are set by a single resistor to GND, connected to the OCSET pin.
Undervoltage sensing is provided on the +3.3V, +5V, +12V and +3.3VAux supplies. Overcurrent sensing is provided on all supplies. In the event of an overcurrent or undervoltage fault on any of the outputs of either channel, all outputs on that channel will be turned off.
Turn-on slew rate may be controlled using eight external capacitors, connected to the gate drives of all of the supplies.
Logic control of the four main outputs is provided by the PWRONA and PWRONB pins. When these pins are high, the outputs are turned on, when low, the outputs are turned off. The +3.3VAUX supplies have their own control inputs, PAUXA and PAUXB.
(Specifications are for each channel, 3.3VAUX=AUXINA=3.3V, VCC = 12VIN = +12V, -12VIN = -12V, Nominal 3.3V and 5V supplies to external MOSFETs, TA = 0oC to +70oC, unless otherwise noted.)
Parameter Min Typ Max Units Test Conditions/Comments
5V/ 3.3V SUPPLY CONTROL
5V Overcurrent Threshold - 8 - A See Typical Application Diagram 5V Overcurrent Threshold Voltage 33 42 50 mV V 5V Overcurrent Threshold Voltage 70 80 90 mV V
OCSET OCSET
= 0.6V
= 1.2V 5V Undervoltage Trip Threshold 4.42 4.65 4.7 V 5V Undervoltage Fault Response Time - 110 160 ns 5V Turn-On Time - 9.75 - ms C (PWRON High to 5VOUT = 4.75V) R
= 0.033µF, C
3V5VG
= 1
L
5VOUT
= 2000µF,
3V Overcurrent Threshold - 10 - A See Typical Application Diagram 3V Overcurrent Threshold Voltage 41 52 62 mV OCSET = 0.6V 3V Overcurrent Threshold Voltage 89 98 108 mV OCSET = 1.2V 3V Undervoltage Trip Threshold 2.74 2.86 2.9 V 3V Undervoltage Fault Response Time - 110 160 ns 3V5VG Undervoltage Enable Threshold - 9.6 - V Voltage 3V Turn-On Time - 9.75 - ms C (PWRON High to 3VOUT = 3.00V) R
= 0.033µF, C
3V5VG
= 0.43
L
3VOUT
= 2000µF,
3V5VG Vout High 11.5 11.8 - V PWRON = High, FLTN = High Gate Output Charge Current 19 25.0 29 µA PWRON = High, V Gate Turn-On Time - 280 - µ s C
= 0.033µF,3V5VG Rising 10% to 90%
3V5VG
3V5VG
= 4V
(PWRON High to 3V5VG = 11V) Gate Turn-Off Time - 2 - µs C
= 0.033µF, 3V5VG Falling 90% to 10%
3V5VG
+12V SUPPLY CONTROL
On Resistance of Internal PMOS - 0.3 0.35 PWRON = High, ID = 0.5A, TA= TJ= 25oC On Resistance of Internal PMOS - 0.35 0.5 PWRON = High, I Overcurrent Threshold 0.6 0.75 0.9 A V Overcurrent Threshold 1.25 1.50 1.8 A V
OCSET OCSET
= 0.6V
= 1.2V
= 0.5A, TA= TJ= 70oC
D
12V Undervoltage Trip Threshold 10.25 10.6 10.8 V Undervoltage Fault Response Time - 110 - ns
–2–
REV. PrN 1/02
ADM1014–SPECIFICATIONS (Continued)
(Specifications are for each channel, 3.3VAUX=AUXINA=3.3V, VCC = 12VIN = +12V, -12VIN = -12V, Nominal 3.3V and 5V supplies to external MOSFETs, TA = 0oC to +70oC, unless otherwise noted.)
Parameter Min Typ Max Units Test Conditions/Comments
Gate Charge Current 19 25.0 29 µA PWRON = High, V 12VG = 10V Turn-On Time - 16 - ms C (PWRON High to 12VG = 1V) Turn-Off Time - 4.5 - µs C
-12V SUPPLY CONTROL
On Resistance of Internal NMOS - 0.7 1 PWRON = High, ID = 0.1A, TA=TJ=25oC On Resistance of Internal NMOS - 1 1 .3 PWRON = High, I Overcurrent Threshold 0.13 0.18 0.25 A V Overcurrent Threshold 0.23 0.38 0.52 A V Gate Output Charge Current 19 25 29 µA PWRON = High, V Turn-On Time - 16 - ms C (PWRON High to M12VO = -10.8V) Turn-Off Time - 3 - µs C M12VIN Input Bias Current - 2.5 5 mA PWRON = High
+3.3VAUX SUPPLY CONTROL
On Resistance of Internal PMOS - 0.25 TBD PAUXON = High, I On Resistance of Internal PMOS - 0.25 TBD PAUXON = High, I Overcurrent Threshold - 0.5 TBD A V Overcurrent Threshold - 1.0 TBD A V
3.3VAUX Undervoltage Trip Threshold - 2.9 TBD V Undervoltage Fault Response Time - 110 - ns Gate Charge Current 19 25.0 29 µA PAUXON = High, V Turn-On Time (PAUXON High to AUXG = 1V) - 16 - ms C Turn-Off Time - 3 - µs C
3.3VAUX Power On Reset Threshold - 2.5 - V AUXIN Voltage Rising
CONTROL PINS
12VIN Supply Current - 5.3 8 mA AUXIN Supply Current - 3 TBD mA OCSET Current 93 100 107 µA Overcurrent to Fault Response Time - 500 960 ns PWRONA/B, PAUXA/B Threshold Voltage 1.0 1.6 2.1 V 12V Power On Enable Threshold 9.4 10 10.2 V 12VINA Voltage Rising 12V Power On Reset Threshold 8.9 9.1 9.3 V 12VINA Voltage Falling
FAULT O/P PINS
FLTA/B Output Low Voltage - 0.5 0.7 V I FLTA/B Output High Voltage
AUXIN
-0.5
AUXIN
-0.1 - V I
FLTA/B, Output Latch Threshold TBD 1.6 TBD V I FAUXA/B Output Low Voltage - 0.5 0.7 V I FAUXA/B Output High Voltage
AUXIN
-0.5
AUXIN
-0.1 - V I
FAUXA/B Output Latch Threshold TBD 1.6 TBD V I
= 0.033µF, 12VG Falling 90% - 10%
12VG
= 0.033µF, 12VG Rising 10% - 90%
12VG
= 0.1A, TA=TJ=70oC
= 0.6V
OCSET
= 1.2V
OCSET
= 0.033µF, C
M12VG
=0.033µF,M12VG Falling 90% -10%
M12VG
= 0.6V
OCSET
= 1.2V
OCSET
= 0.033µF
AUXG
= 0.033µF, AUXG Rising 10% - 90%
AUXG
= 2mA
FLT
= 0
FLT
High to Low transition
FLT
= 2mA
FAUX
= 0
FAUX
High to Low transition
FAUX
D
= -10V
M12VG
= 50µF,RL= 120
M12VO
= 0.375A, TA=TJ=25oC
D
= 0.375A, TA=TJ=70oC
D
= 3V
AUXG
NOTES
Specifications subject to change without notice.
–3–REV. PrN 1/02
ADM1014–SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS*
(TA = +25°C unless otherwise noted)
VCC , 12VIN . . . . . . . . . . . . . . . . . . . . . . . . .-0.5V to +14.0V
12VO, 12VG, 3V5VG . . . . . . . . . . -0.5V to V 12VIN +0.5V
-12VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . -14.0V to +0.5V
-12VO, -12VG . . . . . . . . . . . . . . . . . . . V
-0.5V to +0.5V
-12VIN
3VISEN, 5VISEN . . . -0.5V to the Lesser of 12VIN or +7.0V
Voltage, Any Other Pin . . . . . . . . . . . . . . . . . .-0.5V to +7.0V
12VO Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3A
-12VO Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . 0.8A
Continuous Power Dissipation (T
TSSOP (derate 8.3mW/
o
= +70oC) . . . . . . 667mW
A
C above +70oC)
Operating Temperature Range
Commercial (J Version) . . . . . . . . . . . . . . . . 0°C to +70°C
Storage Temperature Range . . . . . . . . . . . –65°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . +300°C
*This is a stress rating only and functional operation of the device at these or any
other conditions above those indicated in the operation sections of this speci­fication is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.

THERMAL CHARACTERISTICS

38-Pin TSSOP Package:
q
= 100°C/Watt, q
JA
= 10°C/Watt
JC

ORDERING GUIDE

Temperature Package Package
Model Range Description Option ADM1014JRU 0°C to +70°C 38-Pin TSSOP RU-38
PIN CONFIGURATION
M12VOA M12VGA PWRO N A FLTNA FAUXA OCSET AUXGA AUXOA 12VGA 12VOA 12VOB 12VGB AUXOB AUXGB FAUXB FLTNB PWRO N B M12VGB M12VOB
1 2 3 4 5 6 7 8 9
ADM1014
10
TOP VIEW
(Not to Scale)
11 12 13 14 15 16 17 18 19
38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20
M12VINA 3VISENA 3VSA 5VISENA 5VSA 3V5VGA GND AUXINA PAUX ONA 12VINA 12VINB PAUX ONB AUXINB 3V5VGB 5VSB 5VISENB 3VSB 3VISENB M12VINB
–4–
REV. PrN 1/02
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