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LTC4217CDHC-12#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
LTC4217
1
4217fg
For more information www.linear.com/LTC4217
Typical applicaTion
FeaTures
applicaTions
DescripTion
2A Integrated Hot
Swap Controller
The LT C
®
4217 is an integrated solution for Hot Swap
applications that allows a board to be safely inserted and
removed from a live backplane. The part integrates a Hot
Swap controller, power MOSFET and current sense resistor
in a single package for small form factor applications. A
dedicated 12V version (LTC4217-12) contains preset 12V
specific thresholds, while the standard LTC4217 allows
adjustable thresholds.
The LTC4217 provides separate inrush current control and a
5% accurate 2A current limit with foldback current limiting.
The current limit threshold can be adjusted dynamically
using an external pin. Additional features include a current
monitor output that amplifies the sense resistor voltage
for ground referenced current sensing and a MOSFET
temperature monitor output. Thermal limit, overvoltage,
undervoltage and power good monitoring are also provided.
For a 5A pin compatible version, see LTC4232.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
12V, 1.5A Card Resident Application with Auto-Retry
n
Small Footprint
n
33mΩ MOSFET with R
SENSE
n
Wide Operating Voltage Range: 2.9V to 26.5V
n
Adjustable, 5% Accurate Current Limit
n
Current and Temperature Monitor Outputs
n
Overtemperature Protection
n
Adjustable Current Limit Timer Before Fault
n
Power Good and Fault Outputs
n
Adjustable Inrush Current Control
n
2% Accurate Undervoltage and Overvoltage Protection
n
Pin Compatible with LTC4232 (DFN Package Only)
n
Available in 20-Lead TSSOP and 16-Lead
5mm × 3mm DFN Packages
n
RAID Systems, Solid State Drives
n
Server I/O Cards
n
Industrial
Power-Up Waveforms
ADC
1µF
12V
V
OUT
12V
1.5A
20k
4217 TA01a
10k
330µF
V
DD
UV
OUT
PG
I
SET
GATE
GND
I
MON
LTC4217DHC-12
INTV
CC
TIMER
F LT
AUTO
RETRY
+
* TVS: DIODES INC. SMAJ17A
*
V
IN
10V/DIV
CONTACT
BOUNCE
I
IN
0.1A/DIV
V
OUT
10V/DIV
P
G
10V/DIV
25ms/DIV
4217 TA01b
LTC4217
2
4217fg
For more information www.linear.com/LTC4217
LTC4217
LTC4217-12
LTC4217
16
15
14
13
12
11
10
9
17
SENSE
1
2
3
4
5
6
7
8
V
DD
I
SET
I
MON
FB
F LT
PG
GATE
OUT
V
DD
UV
OV
TIMER
INTV
CC
GND
OUT
OUT
TOP VIEW
DHC PACKAGE
16-LEAD (5mm × 3mm) PLASTIC DFN
T
JMAX
= 125°C, θ
JA
= 43°C/W
EXPOSED PAD (PIN 17) IS SENSE,
θ
JA
= 43°C/W SOLDERED, OTHERWISE θ
JA
= 140°C/W
FE PACKAGE
20-LEAD PLASTIC TSSOP
1
2
3
4
5
6
7
8
9
10
TOP VIEW
20
19
18
17
16
15
14
13
12
11
SENSE
V
DD
UV
OV
TIMER
INTV
CC
GND
OUT
OUT
SENSE
SENSE
V
DD
I
SET
I
MON
FB
F LT
PG
GATE
OUT
SENSE
21
SENSE
T
JMAX
= 125°C, θ
JA
= 38°C/W
EXPOSED PAD (PIN 21) IS SENSE,
θ
JA
= 38°C/W SOLDERED, OTHERWISE θ
JA
= 130°C/W
pin conFiguraTion
absoluTe MaxiMuM raTings
Supply Voltage (V
DD
) ................................. –0.3V to 28V
Input Voltages
FB, OV, UV
..............................................–0.3V to 12V
TIMER
................................................... –0.3V to 3.5V
SENSE
.............................V
DD
– 10V or – 0.3V to V
DD
Output Voltages
I
SET
, I
MON
................................................. –0.3V to 3V
PG, FLT
.................................................. –0.3V to 35V
OUT
............................................ –0.3V to V
DD
+ 0.3V
INTV
CC
.................................................. –0.3V to 3.5V
GATE (Note 3)
........................................ –0.3V to 33V
(Notes 1, 2)
Operating Ambient Temperature Range
LTC4217C
................................................ 0°C to 70°C
LTC4217I
.............................................–40°C to 85°C
LTC4217H .......................................... –40°C to 125°C
Junction Temperature (Notes 4, 5) ........................ 125°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
FE Package Only
...............................................300°C
LTC4217
3
4217fg
For more information www.linear.com/LTC4217
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
DD
= 12V unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
DC Characteristics
V
DD
Input Supply Range
l
2.9 26.5 V
I
DD
Input Supply Current MOSFET On, No Load
l
1.6 3 mA
V
DD(UVL)
Input Supply Undervoltage Lockout V
DD
Rising
l
2.65 2.73 2.85 V
V
DD(UVTH)
Input Supply Undervoltage Threshold LTC4217-12, V
DD
Rising
l
9.6 9.88 10.2 V
∆V
DD(UVHYST)
Input Supply Undervoltage Hysteresis LTC4217-12
l
520 640 760 mV
V
DD(OVTH)
Input Supply Overvoltage Threshold LTC4217-12, V
DD
Rising
l
14.7 15.05 15.4 V
∆V
DD(OVHYST)
Input Supply Overvoltage Hysteresis LTC4217-12
l
183 244 305 mV
V
OUT(PGTH)
Output Power Good Threshold LTC4217-12, V
OUT
Rising
l
10.2 10.5 10.8 V
∆V
OUT(PGHYST)
Output Power Good Hysteresis LTC4217-12
l
127 170 213 mV
I
OUT
OUT Leakage Current V
OUT
= V
GATE
= 0V, V
DD
= 26.5V
V
OUT
= V
GATE
= 12V, LTC4217
V
OUT
= V
GATE
= 12V, LTC4217-12
V
OUT
= V
GATE
= 12V, LTC4217H
l
l
l
l
1
50
1
0
2
70
2
±150
4
90
6
µA
µA
µA
µA
dV
GATE
/dt GATE Pin Turn-On Ramp Rate
l
0.15 0.3 0.55 V/ms
R
ON
MOSFET + Sense Resistor On-Resistance C-Grade, I-Grade
H-Grade
l
l
15
15
33
33
50
60
mΩ
mΩ
I
LIM(TH)
Current Limit Threshold V
FB
= 1.23V 1.9 2 2.1 A
V
FB
= 1.23V
l
1.85 2 2.15 A
V
FB
= 0V
l
0.35 0.5 0.7 A
V
FB
= 1.23V, R
SET
= 20kΩ
l
0.85 1 1.17 A
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC4217CDHC-12#PBF LTC4217CDHC-12#TRPBF 421712 16-Lead (5mm × 3mm) Plastic DFN 0°C to 70°C
LTC4217IDHC-12#PBF LTC4217IDHC-12#TRPBF 421712 16-Lead (5mm × 3mm) Plastic DFN –40°C to 85°C
LTC4217CDHC#PBF LTC4217CDHC#TRPBF 4217 16-Lead (5mm × 3mm) Plastic DFN 0°C to 70°C
LTC4217IDHC#PBF LTC4217IDHC#TRPBF 4217 16-Lead (5mm × 3mm) Plastic DFN –40°C to 85°C
LTC4217CFE#PBF LTC4217CFE#TRPBF LTC4217FE 20-Lead Plastic TSSOP 0°C to 70°C
LTC4217IFE#PBF LTC4217IFE#TRPBF LTC4217FE 20-Lead Plastic TSSOP –40°C to 85°C
LTC4217HFE#PBF LTC4217HFE#TRPBF LTC4217FE 20-Lead Plastic TSSOP –40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/. Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
(http://www.linear.com/product/LTC4217#orderinfo)
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LTC4217CDHC-12#PBF

Mfr. #:
Buy LTC4217CDHC-12#PBF
Manufacturer:
Analog Devices Inc.
Description:
Hot Swap Voltage Controllers 2A Int Hot Swap Cntr
Lifecycle:
New from this manufacturer.
Delivery:
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