OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

LTC4223CGN-2#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24
LTC4223-1/LTC4223-2
1
422312f
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Dual Supply Hot Swap
Controller for Advanced
Mezzanine Card
The LTC
®
4223 positive voltage Hot Swap
TM
controller
allows a board to be safely inserted and removed from
a live AMC or MicroTCA backplane. It controls the main
12V supply with an external N-channel MOSFET and the
3.3V auxiliary supply with an integrated switch. The 12V
output ramp rate is adjustable and includes inrush current
limiting. The 12V output is also protected against short
circuit faults with a fast acting current limit and a 5%
accurate timed circuit breaker. The 3.3V output includes
both soft start and overcurrent protection.
The LTC4223 features a current monitor output for the
12V supply, and reports fault and power-good status for
both supplies. It also detects card presence and allows
independent control of the 12V and auxiliary 3.3V sup-
ply outputs. The LTC4223-1 features a latch-off circuit
breaker, while the LTC4223-2 provides automatic retry
after a fault.
Advanced Mezzanine Card Application
■
Allows Safe Insertion into Live AMC or MicroTCA
Backplane
■
Controls 12V Main and 3.3V Auxiliary Supplies
■
Limits Peak Fault Current in ≤1μs
■
Adjustable Current Limit with Circuit Breaker
■
Integrated 0.3Ω AUX Switch
■
High Side Current Sense
■
Gate Drive for External N-Channel MOSFET
■
Adjustable Response Time for Overcurrent Protection
■
Adjustable Supply Voltage Power-Up Rate
■
Thermal Shutdown Protection
■
LTC4223-1: Latch Off After Fault
■
LTC4223-2: Automatic Retry After Fault
■
16-Lead SSOP and 5mm × 4mm DFN Packages
■
Advanced Mezzanine Card, MicroTCA Systems
■
Workstations and Server I/O
■
Telecom Networks
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Normal Power-Up Waveform
422312 TA01a
12V
SENSE
12V
GATE
12V
OUT
12V
IN
V
CC
AUXIN
AUXOUT
EN
AUXON
12ON
AUXPGOOD
12PGOOD
FAULT
12V
3.3V
6mΩ Si7336ADP
CARRIER
CONNECTOR
MODULE
CONNECTOR
TIMER
LTC4223-1/LTC4223-2
GND
12V
7.4A
3.3V
150mA
10Ω
51Ω
330nF
0.1μF
47Ω
15nF
IPMC
12IMON
ADC
20ms/DIV
12PGOOD
5V/DIV
EN
5V/DIV
AUXOUT
5V/DIV
12V
OUT
5V/DIV
AUXPGOOD
5V/DIV
422312 TA01b
LTC4223-1/LTC4223-2
2
422312f
ABSOLUTE MAXIMUM RATINGS
Supply Voltages
12V
IN
..................................................... –0.3V to 20V
AUXIN .................................................... –0.3V to 10V
V
CC
........................................................... –0.3V to 7V
Input Voltages
12ON, AUXON,
⎯
E
⎯
N ................................... –0.3V to 7V
TIMER ..........................................–0.3V to V
CC
+ 0.3V
12V
SENSE
............................................... –0.3V to 20V
Output Voltages
⎯
F
⎯
A
⎯
U
⎯
L
⎯
T,
⎯
1
⎯
2
⎯
P
⎯
G
⎯
O
⎯
O
⎯
D,
⎯
A
⎯
U
⎯
X
⎯
P
⎯
G
⎯
O
⎯
O
⎯
D,
12IMON ................................................... –0.3V to 7V
(Note 1)
GN PACKAGE
16-LEAD PLASTIC SSOP
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
12V
SENSE
12V
IN
12IMON
12ON
AUXIN
V
CC
AUXON
GND
12V
GATE
12V
OUT
12PGOOD
FAULT
AUXOUT
AUXPGOOD
EN
TIMER
T
JMAX
= 125°C, θ
JA
= 110°C/W
16
15
14
13
12
11
10
9
17
1
2
3
4
5
6
7
8
12V
GATE
12V
OUT
12PGOOD
FAULT
AUXOUT
AUXPGOOD
EN
TIMER
12V
SENSE
12V
IN
12IMON
12ON
AUXIN
V
CC
AUXON
GND
TOP VIEW
DHD PACKAGE
16-LEAD (5mm × 4mm) PLASTIC DFN
EXPOSED PAD (PIN 17) PCB GND CONNECTION OPTIONAL
MUST BE SOLDERED TO PCB TO OBTAIN
θ
JA
= 43°C/W, OTHERWISE θ
JA
= 140°C/W, T
JMAX
= 125°C
PIN CONFIGURATION
ORDER INFORMATION
12V
GATE
................................................. –0.3V to 25V
12V
OUT
- 12V
GATE
(Note 3) ................... –4.5V to 0.3V
AUXOUT ................................................. –0.3V to 10V
Operating Temperature Range
LTC4223-1C/ LTC4223-2C ....................... 0°C to 70°C
LTC4223-1I/ LTC4223-2I ..................... –40°C to 85°C
Storage Temperature Range
GN Package ....................................... –65°C to 150°C
DHD Package ..................................... –65°C to 125°C
Lead Temperature (Soldering, 10sec)
GN Package ...................................................... 300°C
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC4223CDHD-1#PBF LTC4223CDHD-1#TRPBF 42231 16-Lead (5mm × 4mm) Plastic DFN 0°C to 70°C
LTC4223CDHD-2#PBF LTC4223CDHD-2#TRPBF 42232 16-Lead (5mm × 4mm) Plastic DFN 0°C to 70°C
LTC4223IDHD-1#PBF LTC4223IDHD-1#TRPBF 42231 16-Lead (5mm × 4mm) Plastic DFN –40°C to 85°C
LTC4223IDHD-2#PBF LTC4223IDHD-2#TRPBF 42232 16-Lead (5mm × 4mm) Plastic DFN –40°C to 85°C
LTC4223CGN-1#PBF LTC4223CGN-1#TRPBF 42231 16-Lead Plastic SSOP 0°C to 70°C
LTC4223CGN-2#PBF LTC4223CGN-2#TRPBF 42232 16-Lead Plastic SSOP 0°C to 70°C
LTC4223IGN-1#PBF LTC4223IGN-1#TRPBF 4223I1 16-Lead Plastic SSOP –40°C to 85°C
LTC4223IGN-2#PBF LTC4223IGN-2#TRPBF 4223I2 16-Lead Plastic SSOP –40°C to 85°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
LTC4223-1/LTC4223-2
3
422312f
ELECTRICAL CHARACTERISTICS
The ● denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are T
A
= 25°C, V
CC
= 3.3V, V
AUXIN
= 3.3V, V
12VIN
=12V, unless otherwise specifi ed. (Note 2)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Supplies
V
DD
Input Supply Range V
CC
AUXIN
12V
IN
●
●
●
2.7
2.7
10
6
6
14
V
V
V
I
DD
Input Supply Current V
CC
AUXIN
12V
IN
●
●
●
0.8
0.4
0.6
2
1
1
mA
mA
mA
V
DD(UVLO)
Input Supply Undervoltage Lockout V
CC
Rising
V
AUXIN
Rising
V
12VIN
Rising
●
●
●
2.3
2.4
9.4
2.45
2.5
9.7
2.6
2.6
10
V
V
V
ΔV
DD(UVLO,
HYST)
Input Supply Undervoltage Lockout
Hysteresis
V
CC
AUXIN
12V
IN
●
●
●
40
70
70
110
110
110
180
150
150
mV
mV
mV
Current Limit
ΔV
SENSE(CB)
Circuit Breaker Trip Sense Voltage,
(V
12VIN
– V
12VSENSE
)
●
47.5 50 52.5 mV
ΔV
SENSE(ACL)
Active Current Limit Sense Voltage,
(V
12VIN
– V
12VSENSE
)
●
54 60 66 mV
I
AUX(ACL)
AUXOUT Active Current Limit V
AUXOUT
= 0V
●
165 240 330 mA
Integrated Switch
R
DS(ON)
Switch Resistance
(V
AUXIN
– V
AUXOUT
)/I
AUXOUT
I
AUXOUT
= 150mA (Note 4)
●
0.3 0.5
Ω
Gate Drive
ΔV
GATE
External N-Channel Gate Drive
(V
12VGATE
– V
12VOUT
)
(Note 3)
●
4.5 6.2 7.9 V
I
GATE(UP)
External N-Channel Gate Pull-Up Current Gate Drive On, V
12VGATE
= 0V
●
–7 –10 –14 μA
I
GATE(DN)
External N-Channel Gate Pull-Down Current Gate Drive Off
V
12VGATE
= 17V, V
12VOUT
= 12V
●
0.5 1 2 mA
I
GATE(FPD)
External N-Channel Gate Fast Pull-Down
Current
Fast Turn Off
V
12VGATE
= 17V, V
12VOUT
= 12V
●
90 160 250 mA
Current Sense
G
12IMON
12IMON Pin Gain Ratio
ΔV
12IMON
/Δ(V
12VIN
– V
12VSENSE
)
(V
12VIN
– V
12VSENSE
) = (75mV, 25mV)
●
30 33 36 V/V
V
12IMON
12IMON Pin Output Voltage (V
12VIN
– V
12VSENSE
) = 75mV, V
CC
= 2.7V
●
2.25 2.475 2.7 V
ΔV
SENSE(MAX)
12IMON Pin Maximum Input Sense Voltage
●
82.5 mV
V
12IMON(CLP)
12IMON Pin Clamp Voltage (V
12VIN
– V
12VSENSE
) = 150mV, V
CC
= 2.7V
●
2.9 3.2 3.5 V
R
12IMON
12IMON Pin Output Resistance (V
12VIN
– V
12VSENSE
) = 0V
●
115 165 215 kΩ
V
12IMON(MIN)
12IMON Pin Minimum Output Voltage (V
12VIN
– V
12VSENSE
) = 0V
●
0 130 mV
Comparator Inputs
V
PG(TH)
Power Good Threshold Voltage V
12VOUT
Falling
V
AUXOUT
Falling
●
●
10
2.8
10.3
2.885
10.6
2.97
V
V
V
PG(HYST)
Power Good Hysteresis V
12VOUT
V
AUXOUT
●
●
20
5
60
16
110
30
mV
mV
V
TMR(TH)
TIMER Pin Threshold Voltage V
TIMER
Rising
V
TIMER
Falling
●
●
1.198
0.15
1.235
0.2
1.272
0.25
V
V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24

LTC4223CGN-2#PBF

Mfr. #:
Buy LTC4223CGN-2#PBF
Manufacturer:
Analog Devices Inc.
Description:
Hot Swap Voltage Controllers 2x S Hot Swap Cntr for Advanced Mezzanin
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet