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LTC4211CMS8 Datasheet Download

Part No.:
LTC4211CMS8
Download:
Download Datasheet
Description:
[Hot Swap Controller with Multifunction Current Control]
File Size:
371 K
Page:
36 Pages
Logo:
Manufacturer:
LINER [ LINEAR TECHNOLOGY ]
PCB Prototype
 LTC4211CMS8 Datasheet Page:1LTC4211CMS8 Datasheet Page:2LTC4211CMS8 Datasheet Page:4LTC4211CMS8 Datasheet Page:5LTC4211CMS8 Datasheet Page:6LTC4211CMS8 Datasheet Page:7LTC4211CMS8 Datasheet Page:8LTC4211CMS8 Datasheet Page:9 
LTC4211
ELECTRICAL CHARACTERISTICS
SYMBOL
∆V
GATE
PARAMETER
External N-Channel Gate Drive
The
q
denotes specifications which apply over the full operating
temperature range, otherwise specifications are T
A
= 25°C. V
CC
= 5V, unless otherwise noted. (Note 2)
CONDITIONS
V
GATE
– V
CC
(For V
CC
= 2.5V)
V
GATE
– V
CC
(For V
CC
= 2.7V)
V
GATE
– V
CC
(For V
CC
= 3.3V)
V
GATE
– V
CC
(For V
CC
= 5V)
V
GATE
– V
CC
(For V
CC
= 12V)
V
GATE
– V
CC
(For V
CC
= 15V)
FB High to Low
2.5V
V
CC
16.5V
q
q
q
q
q
q
q
q
q
MIN
4.0
4.5
5.0
10
10
8
0.08
1.223
TYP
MAX
8
8
10
16
18
18
UNITS
V
V
V
V
V
V
V
V
mV
mV
V
V
mV
µA
µA
V
mV
µA
mA
V
V
V
mV
V
V
ns
µs
ms
µs
µs
µs
µs
V
GATEOV
V
FB
∆V
FB
V
FBHST
V
ONHI
V
ONLO
V
ONHST
I
FILTER
V
FILTER
I
TMR
V
TMR
V
FAULT
V
FAULTHST
V
OLFAULT
V
OLRESET
t
FAULTFC
t
FAULTSC
GATE Overvoltage Lockout Threshold
FB Voltage Threshold
FB Threshold Line Regulation
FB Voltage Threshold Hysteresis
ON Threshold High
ON Threshold Low
ON Hysteresis
FILTER Current
FILTER Threshold
TIMER Current
TIMER Threshold
FAULT Threshold
FAULT Threshold Hysteresis
Output Low Voltage
Output Low Voltage
FAST COMP Trip to GATE Discharging
I
FAULT
= 1.6mA
I
RESET
= 1.6mA
V
CB
= 0mV to 200mV Step
During Slow Fault Condition
During Normal and Reset Conditions
Latched Off Threshold, FILTER Low to High
Timer On, V
TIMER
= 1V
Timer Off, TIMER = 1.5V
TIMER Low to High
TIMER High to Low
Latched Off Threshold, FAULT High to Low
0.2
1.236
0.5
3
0.3
1.248
5
1.39
1.26
–1.5
13
1.26
– 1.5
1.26
0.40
1.26
0.4
0.4
700
30
8
5
7
250
q
q
1.23
1.20
–2.5
7
1.20
– 2.5
1.20
0.15
1.20
1.316
1.236
80
–2
10
1.236
80
–2
3
1.236
0.200
1.236
50
0.14
0.14
300
q
q
q
V
FILTERHST
FILTER Threshold Hysteresis
q
q
q
q
q
q
q
q
q
q
q
q
SLOW COMP Trip to GATE Discharging V
CB
= 0mV to 100mV Step,
8-Pin Version or FILTER Floating
V
CB
= 0mV to 100mV Step,
10nF at FILTER Pin to GND
10
4
1
2
20
6
3
4.5
150
8
t
EXTFAULT
t
FILTER
t
RESET
t
OFF
FAULT Low to GATE Discharging
FILTER High to FAULT Latched
Circuit Breaker Reset Delay Time
Turn-Off Time
V
FAULT
= 5V to 0V
V
FILTER
= 0V to 5V
ON Low to FAULT High
ON Low to GATE Off
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
All current into device pins are positive; all current out of device
pins are negative; all voltages are referenced to ground unless otherwise
specified.
Note 3:
An internal Zener at the GATE pin clamps the charge pump voltage
to a typical maximum operating voltage of 26V. External voltage applied to
the GATE pin beyond the internal Zener voltage may damage the part. If a
lower GATE pin voltage is desired, use an external Zener diode. The GATE
capacitance must be < 0.15µF at maximum V
CC
.
4211f
3