LT4256-3IGN Linear Technology, LT4256-3IGN Datasheet - Page 2

• Manufacturer Part Number: LT4256-3IGN
• Description: IC CTRLR HOTSWP HV DETECT 16SSOP
• Manufacturer: Linear Technology
• Type: Hot-Swap Controllerr

Specifications of LT4256-3IGN

• Applications: General Purpose
• Internal Switch(s): No
• Voltage - Supply: 10.8 V ~ 80 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP (0.150", 3.90mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

ABSOLUTE AXI U RATI GS
LT4256-3
(Note 1)
Supply Voltage (V
SENSE, PWRGD ....................................... – 0.3 to 100V
GATE Voltage (Note 2) .................... – 0.3V to V
GATE Maximum Current ..................................... 200µA
V
FB, UV, OPEN ............................................. – 0.3 to 44V
OV .............................................................. – 0.3 to 18V
RETRY ........................................................ – 0.3 to 15V
TIMER Voltage ......................................... – 0.3V to 4.3V
Maximum Input Current (TIMER) ....................... 100µA
Operating Temperature
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
temperature range, otherwise specifications are at T
SYMBOL
V
I
V
V
I
V
V
V
I
V
V
I
V
I
I
I
I
∆V
∆V
2
ELECTRICAL CHARACTERISTICS
CC
INUV
INOV
INOPEN
INSNS
PU
PD
PDL
CC
UVLH
UVHYS
UVRTH
OVLH
OVHYS
OPEN
OLOPEN
SENSETRIP
OUT
GATE
GATEL
LT4256-3C ............................................. 0°C to 70°C
LT4256-3I ......................................... – 40°C to 85°C
.......................................................... –3V to 100V
PARAMETER
Operating Voltage
Operating Current
Undervoltage Threshold
Hysteresis
UV Input Current
Fault Latch Reset Threshold Voltage
Overvoltage Threshold
Hysteresis
OV Input Current
Open-Circuit Voltage Threshold (V
OPEN Output Low Voltage
Leakage Current
SENSE Pin Trip Voltage (V
SENSE Pin Input Current
GATE Pull-Up Current
GATE Pull-Down Current
V
External N-Channel Gate Drive (Note 2)
External N-Channel Gate Drive, Fault Condition
OUT
Pull-Down Current, Fault Condition
CC
W
) ................................ – 0.3 to 100V
W W
CC
– V
SENSE
CC
– V
)
SENSE
U
)
A
= 25°C. V
CC
CONDITIONS
V
UV ≥ 1.2V
UV = 0V
V
0V ≤ OV < 7V
I
I
V
FB = 0V
FB ≥ 2V
V
Charge Pump On, ∆V
Any Fault, V
Any Fault, V
V
V
20V ≤ V
V
O
O
CC
CC
OPEN
SENSE
OUT
GATE
GATE
= 2mA
= 5mA
+ 10V
The
Low-to-High Transition
Low-to-High Transition
= 48V
– V
– V
= 5V
= V
CC
●
CC
OUT
OUT
denotes the specifications which apply over the full operating
CC
≤ 80V
GATE
GATE
= 48V unless otherwise noted.
, 10.8V ≤ V
, V
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Note: NC is a pin that is “Not Connected.”
OUT
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking:
> V
= V
PWRGD
= 48V
RETRY
OUT
OUT
OPEN
GATE
GND
UV
OV
NC
NC
+ ∆V
CC
T
JMAX
= 7V
≤ 20V
16-LEAD PLASTIC SSOP
1
2
3
4
5
6
7
8
GATEL
= 125°C, θ
GN PACKAGE
TOP VIEW
,
JA
= 130°C/W
http://www.linear.com/leadfree/
16
15
14
13
12
11
10
9
●
●
●
●
●
●
●
●
●
●
V
SENSE
NC
GATE
V
NC
FB
TIMER
CC
OUT
10.8
3.96
0.25
3.96
0.25
MIN
–16
0.4
1.5
4.5
45
40
10
7
U
GN PART MARKING
–0.1
–1.5
0.85
0.20
0.75
11.6
TYP
– 32
130
1.8
0.4
0.4
0.1
0.1
8.8
–2
14
55
40
62
LT4256-3CGN
LT4256-3IGN
4
4
3
ORDER PART
NUMBER
42563
42563I
W
MAX
4.04
0.55
4.04
0.55
12.5
12.8
– 63
3.9
1.2
6.5
0.5
1.3
80
–1
–3
22
65
70
80
1
1
UNITS
42563fa
U
mA
mV
mV
mV
mA
µA
µA
µA
µA
µA
µA
µA
V
V
V
V
V
V
V
V
V
V
V