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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