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LTC4216CDE#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26
LTC4216
4
4216fa
For more information www.linear.com/LTC4216
Typical perForMance characTerisTics
I
CC
vs V
CC
I
CC
vs Temperature V
CC(UVL)
vs Temperature
ΔV
CB(TH)
vs Temperature
ΔV
ACL(TH)
vs Temperature
TEMPERATURE (°C)
–50
I
CC
(mA)
125
4216 G02
–25
0
25
50
75
100
3.0
2.5
2.0
1.5
1.0
0.5
V
CC
= 6V
V
CC
= 3.3V
V
CC
= 2.3V
TEMPERATURE (°C)
–50
V
CC(UVL)
(V)
125
4216 G03
–25
0
25
50
75
100
2.20
2.15
2.10
2.05
2.00
1.95
1.90
FALLING
RISING
TEMPERATURE (°C)
–50
∆V
CB(TH)
(mV)
125
4216 G04
–25
0
25
50
75
100
27
26
25
24
23
V
CC
(V)
2.0
I
CC
(mA)
6.0
4216 G01
2.5
3.0
3.5
4.0
4.5
5.0
5.5
3.0
2.5
2.0
1.5
1.0
0.5
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)
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All currents into device pins are positive; all currents out of
the device pins are negative; all voltages are referenced to GND unless
otherwise specified.
TEMPERATURE (°C)
–50
∆V
ACL(TH)
(mV)
125
4216 G05
–25
0
25
50
75
100
42
41
40
39
38
Analog Current Limit Delay vs
Sense Voltage
Specifications are at T
A
= 25°C. V
CC
= 3.3V,
unless otherwise noted.
SENSE VOLTAGE (V
SENSEP
– V
SENSEN
) (mV)
40
ANALOG CURRENT LIMIT DELAY (µS)
200
4216 G06
80 120
160
100
10
1
0.1
V
SENSEP
= 0.4V
C
GATE
= 10nF
V
SENSEP
= 3.3V
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
t
FAULT(EXT)
FAULT Low to Gate Discharging V
FAULT
= Step 2V to 0V
l
10 20 µs
t
FILTER
FILTER High to Gate Discharging V
FILTER
= Step 0V to 2V
l
20 40 µs
t
RST(ONLO)
Circuit Breaker Reset Delay Time,
ON Low to FAULT High
V
ON
= Step 2V to 0V
l
30 60 µs
t
RST(VCCLO)
Circuit Breaker Reset Delay Time,
V
CC
Low to FAULT High
V
ON
= 2V, V
CC
= Step 3.3V to 1.8V
l
50 100 µs
t
OFF
Turn-Off Time, ON Low to GATE
Discharging
V
ON
= Step 2V to 0.6V 15 µs
LTC4216
5
4216fa
For more information www.linear.com/LTC4216
Typical perForMance characTerisTics
ΔV
GATE
vs Temperature
V
GATE
vs V
SENSEN
I
GATE(UP)
vs Temperature
V
FB(TH)
vs Temperature
V
TMR(TH)
vs Temperature V
ON(TH)
vs Temperature
I
TMR(UP)
vs Temperature
V
FILT(TH)
vs Temperature
V
SS(CLP)
vs Temperature
TEMPERATURE (°C)
–50
I
TMR(UP)
(A)
125
4216 G13
–25
0
25
50
75
100
–2.2
–2.1
–2.0
–1.9
–1.8
TEMPERATURE (°C)
–50
V
FILT(TH)
(V)
125
4216 G14
–25
0
25
50
75
100
1.27
1.26
1.25
1.24
1.23
TEMPERATURE (°C)
–50
V
SS(CLP)
(V)
125
4216 G15
–25
0
25
50
75
100
1.9
1.8
1.7
1.6
1.5
1.4
TEMPERATURE (°C)
–50
∆V
GATE
(V)
125
4216 G07
–25
0
25
50
75
100
7.0
6.5
6.0
5.5
5.0
4.5
V
CC
= 5V
V
CC
= 3.3V
V
SENSEP
= V
SENSEN
= V
CC
V
CC
= 2.5V
V
SENSEN
(V)
0
V
GATE
(V)
14
12
10
8
6
4
2
1
2 3 4
4216 G08
5 6
V
CC
= 6V
TEMPERATURE (°C)
–50
I
GATE(UP)
(µA)
125
4216 G09
–25
0
25
50
75
100
–22
–21
–20
–19
–18
TEMPERATURE (°C)
–50
V
FB(TH)
(V)
125
4216 G10
–25
0
25
50
75
100
0.611
0.608
0.605
0.602
0.599
0.596
FALLING
RISING
TEMPERATURE (°C)
–50
V
TMR(TH)
(V)
125
4216 G11
–25
0
25
50
75
100
1.27
1.26
1.25
1.24
1.23
TEMPERATURE (°C)
–50
V
ON(TH)
(V)
125
4216 G12
–25
0
25
50
75
100
0.90
0.85
0.80
0.75
0.70
0.65
0.60
FALLING
RISING
LTC4216
6
4216fa
For more information www.linear.com/LTC4216
pin FuncTions
(DE12/Package/MS Package)
RESET (Pin 1/Pin 1): Reset or Power-Good Output. Open
drain output that pulls low if the FB pin voltage falls below
its threshold (0.6V). During the start-up cycle, the RESET
pin goes high impedance at the end of the second timing
cycle after the FB pin goes above the FB threshold. This
pin requires an external pull-up to a positive supply. If an
undervoltage lockout condition occurs, the RESET pin
pulls low and ignores the FB pin voltage.
ON (Pin 2/Pin 2): ON Control Input. A rising edge above
the ON pin threshold (0.8V) initiates the start-up cycle
and turns on the external N-channel MOSFET. A falling
edge below 0.72V (80mV ON pin hysteresis) turns it off.
If this pin is pulled below 0.4V, following a circuit breaker
trip, it resets the electronic circuit breaker and fault latch.
FILTER (Pin 3/Pin 3): Fault Filter Input. Connect a capacitor
between this pin and ground to set up the fault filter delay.
This pin sources 60µA or sinks 2.4µA when the voltage
across the sense resistor exceeds 25mV or drops below
25mV respectively. The filter comparator rising threshold
is 1.253V.
TIMER (Pin 4/
Pin 4): Timer Input. Connect a capacitor
between
this pin and ground to set up the start-up timing
cycle duration. It also defines the RESET power-good delay
from the instant the FB pin voltage exceeds 0.6V. This pin
sources 2µA pull-up current during ramp up. The timer
comparator rising threshold is 1.253V.
SS (Pin 5/Not Available): Soft-Start Control Input. Con
-
nect a
capacitor between this pin and ground for soft-start
during
power-up. It controls the GATE ramp up, limiting
the rate of change of the inrush current when the external
MOSFET turns on. If soft-start function is not used, leave
this pin unconnected.
GND (Pin 6/Pin 5): Device Ground.
FB (Pin 7/Pin 6): Output Monitor for Reset Output. A resis
-
tive divider from the external MOSFET’s source terminal is
tied
to this pin. When the voltage at this pin drops below
0.6V, the RESET pin pulls low. The FB comparator falling
threshold is 0.602V.
GATE (Pin 8/Pin 7): Gate Drive for External N-Channel
MOSFET. An internal charge pump provides 20µA gate
pull-up current and sufficient gate overdrive to the external
MOSFET. An internal shunt regulator limits the GATE pin
voltage to
about 6.2V (typ) above
the SENSEN pin voltage.
SENSEN (Pin 9/Pin 8): Circuit Breaker Negative Sense
Input. Connect this pin to the sense resistor terminal wired
to the drain of the external N-channel MOSFET. The sense
Typical perForMance characTerisTics
I
FILT(UP)
vs Temperature
I
FILT(DN)
vs Temperature
I
SS(UP)
vs Temperature
TEMPERATURE (°C)
–50
I
FILT(UP)
(µA)
125
4216 G16
–25
0
25
50
75
100
–70
–65
–60
–55
–50
TEMPERATURE (°C)
–50
I
FILT(DN)
(µA)
125
4216 G17
–25
0
25
50
75
100
2.8
2.6
2.4
2.2
2.0
TEMPERATURE (°C)
–50
I
SS(UP)
(µA)
125
4216 G18
–25
0
25
50
75
100
–12
–10
–8
–6
–4
–2
0
V
FB
= 2V
V
FB
= 0V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26

LTC4216CDE#PBF

Mfr. #:
Buy LTC4216CDE#PBF
Manufacturer:
Analog Devices Inc.
Description:
Hot Swap Voltage Controllers Ultralow V Hot Swap Cntr
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New from this manufacturer.
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