LTC4244IGN#TRPBF Linear Technology, LTC4244IGN#TRPBF Datasheet - Page 3

• Manufacturer Part Number: LTC4244IGN#TRPBF
• Description: IC CTRLR HOTSWAP PCI 20-SSOP
• Manufacturer: Linear Technology
• Type: Hot-Swap Controllerr

Specifications of LTC4244IGN#TRPBF

• Applications: CompactPCI™
• Internal Switch(s): No
• Voltage - Supply: 3.3V, 5V, ±12V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-SSOP (0.154", 3.91mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
otherwise noted.
SYMBOL PARAMETER
I
T
V
V
V
I
I
V
R
V
V
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to ground unless otherwise
specified.
CL
IN
TIMER
TS
TH
IL
IH
TIMER
OL
PXG
V
DIS
TIMER
Current Foldback
Thermal Shutdown Temperature
Power Good Threshold Voltage
Logic Input Low Voltage
Logic Input High Voltage
OFF/ON, RESETIN Input Current
RESETOUT, FAULT Leakage
Current
PWRGD Output Current
5V
3.3V
5V
3.3V
5V
3.3V
PRECHARGE Input Current
TIMER Pin Current
TIMER Threshold Voltage
External Timer Voltage
12V
5V
3.3V
V
Output Low Voltage
PRECHARGE Reference Voltage
EEOUT
SENSE
IN
OUT
OUT
OUT
SENSE
IN
OUT
OUT
Input Current
Input Current
Discharge Resistance
Input Current
Discharge Resistance
Discharge Resistance
Input Current
Input Current
Discharge Resistance
Input Current
OFF/ON, RESETIN, FAULT
RESETOUT, FAULT = 5V, OFF/ON = 0V, RESETIN = 3.3V
PWRGD = 5V, OFF/ON = 4V
OFF/ON = 4V
OFF/ON = 4V
CONDITIONS
12V
12V
V
V
Junction Temperature, Ramping Up
12V
5V
3.3V
V
OFF/ON, RESETIN, FAULT
OFF/ON, RESETIN = 0V
OFF/ON, RESETIN = 12V
5V
3.3V
5V
3.3V
3.3V
5V
3.3V
V
OFF/ON = 0V, V
OFF/ON = 5V, V
TIMER_HI, (V
TIMER_LO, V
OFF/ON = 4V
OFF/ON = 4V
PWRGD, RESETOUT, FAULT, I = 1mA
V
EEIN
EEIN
EEOUT
PRECHARGE
DRIVE
V
OUT
SENSE
IN
OUT
TIMER
IN
IN
OUT
OUT
SENSE
IN
IN
OUT
= 5V, TIMER = 0V
= –12V, V
= –12V, V
, Ramping Down
= 12V, 12V
= 12V, 12V
, Ramping Up, LTC4244 Only
= 5V, OFF/ON = 0V, TIMER = 0V
= 3.3V, TIMER = FLOAT
= 3.3V, TIMER = 0V
= 2V
, Ramping Down
, Ramping Down
= 3.3V, OFF/ON = 0V, TIMER = 0V
= 5V, 5V
= (V
= 3.3V, 3.3V
A
= 1V
12VIN
TIMER
= 25 C. V
12VIN
TIMER
TIMER
EEOUT
EEOUT
OUT
OUT
OUT
– V
The
, Ramping Down
– V
= 0V, TIMER = 0V
= 10V, TIMER = 0V
= 0V
= 0V
= 5V
= 0V, TIMER = 0V
= –10V, TIMER = 0V
TIMER
TIMER
OUT
12VIN
denotes the specifications which apply over the full operating
= 0V
), I
), FAULT = 0V, Ramping Up
TIMER
= 12V, V
Note 3: The 12V
15V, respectively, upon hot insertion.
= –1 A
EEIN
= –12V, V
IN
and V
EEIN
3.3VIN
LTC4244/LTC4244-1
pins will withstand transient surges up to
= 3.3V, V
–10.8
–100
–550
0.95
MIN
10.8
4.50
2.80
1.3
0.5
350
16
25
50
2
5VIN
–11.1
–360
–850
TYP
150
510
400
107
170
440
200
200
390
11.1
4.61
2.90
0.8
0.1
1.6
0.8
225
610
57
56
21
45
1
= 5V, unless
–1000
–1500
–11.4
1000
1000
MAX
1.05
100
100
700
550
200
300
500
500
11.4
4.75
3.00
0.8
1.5
1.9
1.1
0.4
350
870
10
26
70
10
10
10
10
1
UNITS
42441f
3
mA
mA
mA
mA
mA
mA
V
C
V
V
V
V
V
A
A
A
A
A
A
A
A
A
A
A
A
V
V
V
V
V