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LTC4216IDE#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26
LTC4216
1
4216fa
For more information www.linear.com/LTC4216
Typical applicaTion
SENSEP SENSEN
GATE
V
CC
ON
TIMER
FB
FAULT
RESET
FAULT
RESET
SS FILTER
LTC4216
330nF
20k
1%
17.4k
1%
10k
10k
1%
15k
1%
LONG
BACKPLANE
CONNECTOR
(FEMALE)
PCB EDGE
CONNECTOR
(MALE)
GND
LONG
SHORT
10nF 10nF 18nF
V
OUT
1.8V
5A
V
IN
1.8V
V
CC
3.3V
GND
Si4864DY
0.004Ω
22Ω
3.3V
10k
+
1000µF
µP
LOGIC
4216 TA01
LONG
4216 TA01b
0.5ms/DIV
V
GATE
5V/DIV
I
OUT
2.5A/DIV
V
OUT
1V/DIV
FeaTures DescripTion
Ultralow Voltage
Hot Swap Controller
applicaTions
L, LT , LT C , LT M , Linear Technology and the Linear logo are registered trademarks and
Hot Swap is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
n
Allows Safe Board Insertion and Removal from
a Live Backplane
n
Controls Load Voltages from 0V to 6V
n
Fast Response Limits Peak Fault Current
n
Adjustable Analog Current Limit
n
Adjustable Soft-Start with Inrush Current Limiting
n
Adjustable Response Time for Overcurrent
Protection
n
Low Circuit Breaker Trip Threshold: 25mV
n
No External Gate Capacitor Required
n
Internal Charge Pump for N-Channel MOSFET
n
Adjustable Output Power-Up Rate
n
RESET and FAULT Output
n
10-Lead MSOP and 12-Lead (4mm × 3mm) DFN
Packages
The LT C
®
4216 is a positive low voltage Hot Swap
™
controller
that allows a board to be safely inserted and removed from
a live backplane. It controls load voltages ranging from
0V to 6V and isolates a severe fault with instantaneous
analog current limiting.
An internal high side switch driver controls the gate of
an external N-channel MOSFET. An adjustable soft-start
limits the rate of change of the inrush current at start-up
for a large load capacitor. Together with an analog
current
limit
amplifier, an electronic circuit breaker with adjustable
response time provides dual level overcurrent protection.
No external gate capacitor is required for the analog cur
-
rent limit loop compensation.
The
FB pin monitors the output supply voltage and signals
the RESET output pin. An ON pin provides on/off control
and a FAULT pin indicates the fault status. The LTC4216
is available in the 10-lead MSOP and 12-lead (4mm ×
3mm) DFN packages.
n
Electronic Circuit Breaker
n
Live Board Insertion and Removal
n
Industrial High Side Switch/Circuit Breaker
n
Optical Networking
Single Channel 1.8V Hot Swap Controller Normal Power-Up
with Soft-Start
LTC4216
2
4216fa
For more information www.linear.com/LTC4216
pin conFiguraTion
absoluTe MaxiMuM raTings
(Note 1)
12
11
10
9
8
7
1
2
3
4
5
6
13
FAULT
V
CC
SENSEP
SENSEN
GATE
FB
RESET
ON
FILTER
TIMER
SS
GND
TOP VIEW
DE PACKAGE
12-LEAD (4mm × 3mm) PLASTIC DFN
T
JMAX
= 125°C, θ
JA
= 43°C/W, θ
JC
= 4.3°C/W
EXPOSED PAD (PIN 13) INTERNALL
Y CONNECTED TO GND
(PCB CONNECTION OPTIONAL)
1
2
3
4
5
RESET
ON
FILTER
TIMER
GND
10
9
8
7
6
V
CC
SENSEP
SENSEN
GATE
FB
TOP VIEW
MS PACKAGE
10-LEAD PLASTIC MSOP
T
JMAX
= 125°C, θ
JA
= 160°C/W
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC4216CDE#PBF LTC4216CDE#TRPBF 4216
12-Lead (4mm × 3mm) Plastic DFN
0°C to 70°C
LTC4216IDE#PBF LTC4216IDE#TRPBF 4216
12-Lead (4mm × 3mm) Plastic DFN
–40°C to 85°C
LTC4216CMS#PBF LTC4216CMS#TRPBF LTBKV 10-Lead Plastic MSOP 0°C to 70°C
LTC4216IMS#PBF LTC4216IMS#TRPBF LTBKV 10-Lead Plastic MSOP –40°C to 85°C
Consult LT C 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/
Bias Supply Voltage (V
CC
) ............................ – 0.3V to 9V
Input Voltages
FB, ON, SS, SENSEP, SENSEN .................– 0.3V to 9V
TIMER, FILTER .............................–0.3V to V
CC
+ 0.3V
Output Voltages
RESET, FA U LT .......................................... –0.3V to 9V
GATE ...................................................... –0.3V to 15V
Operating Temperature Range
LTC4216C ................................................ 0°C to 70°C
LTC4216I .............................................–40°C to 85°C
Storage Temperature Range
MS ..................................................... –65°C to 150°C
DE ...................................................... –65°C to 150°C
Lead Temperature (Soldering, 10sec)
MS Package ......................................................300°C
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 3.3V, unless otherwise noted. (Note 2)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CC
Bias Supply Range
l
2.3 6 V
V
SENSEP
V
SENSEP
Supply Range
l
0 6 V
I
CC
Bias Supply Current V
ON
= 2V, V
FB
= 2V
l
1.6 3 mA
V
CC(UVL)
Bias Supply Undervoltage Lockout V
CC
Rising
l
1.97 2.12 2.23 V
ΔV
CC(UVL,HYST)
Bias Supply Undervoltage
Lockout Hysteresis
l
50 120 190 mV
elecTrical characTerisTics
LTC4216
3
4216fa
For more information www.linear.com/LTC4216
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 3.3V, unless otherwise noted. (Note 2)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
ΔV
CB(TH)
Circuit Breaker Trip Voltage Threshold
(V
SENSEP
– V
SENSEN
)
V
SENSEP
= 0.4V, 3.3V
l
22.5
21.5
25
25
27.5
28.5
mV
mV
ΔV
ACL(TH)
Analog Current Limit Voltage Threshold
(V
SENSEP
– V
SENSEN
)
l
32 40 48 mV
I
SENSEP(IN)
SENSEP Pin Input Current V
SENSEP
= V
SENSEN
= V
CC
= 6V
V
SENSEP
= V
SENSEN
= 0V, V
CC
= 6V
l
l
20 70
–7
250
–20
µA
µA
I
SENSEN(IN)
SENSEN Pin Input Current V
SENSEN
= V
SENSEP
= V
CC
= 6V
V
SENSEN
= V
SENSEP
= 0V, V
CC
= 6V
l
l
–5
10
–10
15
–15
µA
µA
I
GATE(UP)
GATE Pull Up Current Gate Drive On, V
GATE
= 0V, V
ON
= 2V
l
–16 –20 –26 µA
I
GATE(DN)
GATE Pull Down Current Gate Drive Off, V
GATE
= 5V, V
ON
= 0.6V
V
SENSEP
- V
SENSEN
= 55mV, V
GATE
= 5V
V
SENSEP
- V
SENSEN
= 100mV, V
GATE
= 5V
l
l
l
100
1
15
600
5
50
1500
20
100
µA
mA
mA
ΔV
GATE
External N-Channel Gate Drive
(V
GATE
– V
SENSEN
)
2.3V ≤ V
CC
< 3V
3V ≤ V
CC
≤ 6V
l
l
4.0
4.5
5.0
6.2
7.9
7.9
V
V
V
GATE(TH)
GATE Pin Threshold Voltage V
GATE
Falling
l
0.15 0.2 0.3 V
V
SS(CLP)
SS Pin Clamp Voltage After End of SS Timing Cycle
l
1.3 1.65 2.0 V
V
SS(TH)
SS Pin Threshold Voltage V
SS
Falling
l
0.15 0.2 0.35 V
I
SS(UP)
SS Pull Up Current V
ON
= 2V, V
SS
= 1.2V, V
FB
= 2V
V
ON
= 2V, V
FB
= 0V
l
l
–7
–0.3
–10
–1
–13
–2
µA
µA
I
SS(DN)
SS Pull Down Current V
ON
= 0V, V
SS
= 2V 8 mA
V
FB(TH)
FB Pin Threshold Voltage V
FB
Falling
l
0.593 0.602 0.611 V
ΔV
FB(LINEREG)
FB Pin Threshold Line Regulation 2.3V ≤ V
CC
≤ 6V
l
0.2 3 mV
ΔV
FB(HYST)
FB Pin Hysteresis 3 mV
I
FB(IN)
FB Pin Input Current V
FB
= 1.2V, V
CC
= 6V
l
0 ±1 µA
V
ON(TH)
ON Pin Threshold Voltage V
ON
Rising
l
0.77 0.8 0.83 V
ΔV
ON(HYST)
ON Pin Hysteresis
l
40 80 130 mV
V
ON(FC)
ON Pin Fault Clear Threshold Voltage V
ON
Falling
l
0.36 0.4 0.44 V
I
ON(IN)
ON Pin Input Current V
ON
= 1.2V, V
CC
= 6V
l
0 ±1 µA
V
TMR(TH)
TIMER Pin Threshold Voltage V
TIMER
Rising
V
TIMER
Falling
l
l
1.216
0.15
1.253
0.2
1.291
0.35
V
V
I
TMR(UP)
Timer Pull Up Current Timer On, V
ON
= 2V, V
TIMER
= 1V
l
–1.5 –2 –2.5 µA
I
TMR(DN)
Timer Pull Down Current Timer Off, V
ON
= 0V, V
TIMER
= 2V 8 mA
V
FILT(TH)
FILTER Pin Threshold Voltage V
FILTER
Rising
V
FILTER
Falling
l
l
1.216
0.15
1.253
0.2
1.291
0.35
V
V
I
FILT(UP)
Filter Pull Up Current V
ON
= 2V, V
FILTER
= 1V, In Fault Mode
l
–45 –60 –75 µA
I
FILT(DN)
Filter Pull Down Current V
ON
= 2V, V
FILTER
= 1V, No Faults
V
ON
= 0V, V
FILTER
= 2V, In Reset Mode
l
1.5 2.4
8
3.3 µA
mA
V
FAULT(TH)
FAULT Pin Threshold Voltage V
FAULT
Falling
l
1.216 1.253 1.291 V
ΔV
FAULT(HYST)
FAULT Pin Hysteresis 10 mV
I
FAULT(UP)
FAULT Pin Current V
ON
= 0V, V
FAULT
= 1.5V
l
–3 –5 –7 µA
V
OL
Output Low Voltage (RESET, FAULT) I
RESET
= I
FAULT
= 1.6mA
l
0.15 0.4 V
I
RESET(LEAK)
RESET Pin Input Leakage Current V
RESET
= V
CC
= 6V 0 ±10 µA
t
CB(TRIP)
Circuit Breaker Trip to Gate Discharging (V
SENSEP
- V
SENSEN
) = Step 0V to 150mV
(V
SENSEP
- V
SENSEN
) = Step 0V to 30mV,
V
SENSEP
= V
CC
, FILTER = 10nF to GND
l
l
120
1
240
3
360
µs
µs
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LTC4216IDE#PBF

Mfr. #:
Buy LTC4216IDE#PBF
Manufacturer:
Analog Devices Inc.
Description:
Hot Swap Voltage Controllers Ultralow V Hot Swap Cntr
Lifecycle:
New from this manufacturer.
Delivery:
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