LTC1644 LINER [Linear Technology], LTC1644 Datasheet - Page 3

• Manufacturer Part Number: LTC1644
• Description: CompactPCI Bus Hot Swap Controller
• Manufacturer: LINER [Linear Technology]

The
V
SYMBOL
V
V
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.
ELECTRICAL CHARACTERISTICS
IN
TIMER
12VIN
TH
3VONLY
NOVEEIN
IL
IH
TIMER
OL
PXG
DIS
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T
= 12V, V
PARAMETER
Power Good Threshold Voltage
3V Only Window Voltage
No V
Input Low Voltage
Input High Voltage
OFF/ON, RESETIN Input Current
RESETOUT, FAULT Output Current
PWRGD Output Current
5V
3V
5V
3V
5V
3V
TIMER Pin Current
TIMER Threshold Voltages
5V
3V
12V
V
Output Low Voltage
PRECHARGE Reference Voltage
EEOUT
SENSE
SENSE
IN
IN
OUT
OUT
OUT
OUT
OUT
EEIN
Input Current
Input Current
EEIN
Input Current
Input Current
Discharge Impedance
Discharge Impedance
Discharge Impedance
Discharge Impedance
Input Current
Input Current
Threshold Voltage
= –12V, V
3VIN
= 3.3V, V
5VIN
CONDITIONS
12V
V
3V
5V
V
V
OFF/ON, RESETIN, FAULT
OFF/ON, RESETIN, FAULT
OFF/ON, RESETIN = 0V
OFF/ON, RESETIN = 12V
RESETOUT, FAULT = 5V, OFF/ON = 0V, RESETIN = 3.3V
PWRGD = 5V, OFF/ON = 4V
5V
3V
5V
3V
3V
5V
3V
OFF/ON = 0V, V
V
(V
OFF/ON = 4V
OFF/ON = 4V
OFF/ON = 4V
OFF/ON = 4V
PWRGD, RESETOUT, FAULT, I = 3mA
V
V
EEOUT
3VONLY
EEIN
TIMER
5VIN
5VIN
12VIN
OUT
OUT
SENSE
SENSE
IN
IN
IN
OUT
OUT
OUT
= 5V unless otherwise noted.
= 5V, TIMER = 0V
= 3.3V, TIMER = FLOAT
= 3.3V, TIMER = 0V
= 5V
= V
= 5V, OFF/ON = 0V, TIMER = 0V
= 3.3V, OFF/ON = 0V, TIMER = 0V
= 5V, OFF/ON = 4V
– V
= V
= 5V, 5V
= 3.3V, 3V
3VIN
TIMER
5VIN
= 3.3V
TIMER
), FAULT = 0V
OUT
– V
OUT
3VIN
= 0V
= 0V
= 0V
IN
, V
5VOUT
= V
3VOUT
= 3V
– 10.4
10.8
4.50
0.95
0.95
MIN
–15
2.8
0.5
50
– 4
30
2
– 10.5
– 4.6
11.1
4.62
1.00
1.00
TYP
– 21
107
490
380
102
161
430
625
2.9
0.08
0.08
0.08
0.08
55
55
45
45
60
1
1
LTC1644
– 11.1
1000
1000
MAX
11.4
4.75
– 6.3
1.05
1.05
200
100
100
625
550
400
500
–27
100
100
A
3.0
0.8
1.5
1.3
0.4
70
10
10
10
10
= 25 C.
UNITS
3
1644f
mV
mA
mA
V
V
V
V
V
V
V
A
A
A
A
A
A
A
A
A
A
A
V
V
V
V