LTC4244 LINER [Linear Technology], LTC4244 Datasheet - Page 2

• Manufacturer Part Number: LTC4244
• Description: Rugged, CompactPCI Bus Hot Swap Controllers
• Manufacturer: LINER [Linear Technology]

ABSOLUTE AXI U RATI GS
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
otherwise noted.
SYMBOL
I
V
V
V
t
I
I
I
LTC4244/LTC4244-1
(Notes 1, 2, 3)
Supply Voltages
Input Voltages (OFF/ON, RESETIN) ........– 0.3V to 13.5V
Output Voltages (FAULT, PWRGD, RESETOUT)
Analog Voltages and Currents
Operation Temperature Range
Storage Temperature Range ................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec).................. 300 C
2
DD
OC
GATE(UP)
GATE(DN)
GATE(FAULT)
LKO
FB
CB
V
V
V
GATE
12V
VEE
12V
V
5V
PRECHARGE, GATE ....................................... 20mA
V
TIMER, 12V
LTC4244C/LTC4244C-1 ........................... 0 C to 70 C
LTC4244I/LTC4244I-1 ........................ – 40 C to 85 C
...........................................................– 0.3V to 13.5V
...........................................................– 0.3V to 13.5V
EEIN
EEOUT
OUT
IN
.............................................................. –14.4V
, DRIVE, 5V
................................................................ 14.4V
PARAMETER
V
Undervoltage Lockout
Foldback Current Limit Voltage
Circuit Breaker Trip Voltage
Overcurrent Fault Response Time (V
GATE Pin Output Current
External Gate Voltage
Internal Switch Voltage Drop
................................................ –14.4V to 0.3V
12VIN
OUT ...........................................
Supply Current
W
IN
, 3.3V
SENSE
W W
, 3.3V
CONDITIONS
OFF/ON = 0V
12V
5V
3.3V
V
TIMER, Ramping Down, V
V
V
V
V
V
V
(V
OFF/ON = 0V, V
V
OFF/ON = 0V, V
IN
EEIN
FB
FB
FB
FB
CB
CB
GATE
V
V
V
5VIN
3.3VIN
IN
, 3.3V
GATE
12V
VEE
IN
= (V
= (V
= (V
= (V
= (V
= (V
, Ramping Down
IN
, Ramping Up (LTC4244 Only)
, Ramping Down
– 0.3V to 14.4V
, Ramping Down
= 5V, OFF/ON = 4V
– V
= (V
= (V
= (V
5VIN
5VIN
3.3VIN
3.3VIN
– V
5VIN
3.3VIN
U
OUT
5VSENSE
12VIN
EEOUT
A
3.3VSENSE
12VIN
– V
– V
– V
= 25 C. V
, 5V
– V
– V
– V
GATE
GATE
5VSENSE
5VSENSE
5VSENSE
– V
– V
3.3VSENSE
3.3VSENSE
– V
3.3VSENSE
) = 100mV, TIMER = FLOAT
The
SENSE
12VOUT
= 2V, TIMER = 0V
= 2V, TIMER = FLOAT, FAULT = 0V
EEIN
) = 100mV, TIMER = FLOAT
GATE
), V
), V
), TIMER = FLOAT
), I
12VIN
), I
12VIN
denotes the specifications which apply over the full operating
), I = 500mA
), V
), V
), TIMER = FLOAT
EE
5VOUT
5VOUT
GATE
= 100mA
3.3VOUT
3.3VOUT
= 12V, V
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
= 6V
= –1 A
RESETOUT
= 0V, TIMER = 0V
= 3V, TIMER = 0V
RESETIN
PWRGD
OFF/ON
TIMER
FAULT
5V
12V
V
= 0V, TIMER = 0V
= 2V, TIMER = 0V
GND
EEIN
OUT
EEIN
IN
T
JMAX
20-LEAD PLASTIC SSOP
10
1
2
3
4
5
6
7
8
9
= –12V, V
= 140 C,
GN PACKAGE
TOP VIEW
JA
3.3VIN
= 135 C/ W
20
19
18
17
16
15
14
13
12
11
= 3.3V, V
12V
V
3.3V
3.3V
3.3V
GATE
5V
5V
PRECHARGE
DRIVE
–8.25
MIN
–20
EEOUT
2.25
8.25
11
46
11
46
45
45
17
17
SENSE
IN
20
4
8
4
OUT
OUT
IN
SENSE
U
5VIN
–9.25
TYP
–67
225
110
4.25
9.25
0.6
16
51
16
51
52
52
25
25
2.5
60
4
8
= 5V, unless
9
LTC4244CGN
LTC4244CGN-1
LTC4244IGN
LTC4244IGN-1
ORDER PART
W
NUMBER
–10.25
–100
MAX
10.25
600
250
2.75
10
21
56
21
56
57
57
35
35
100
16
4.5
10
1
UNITS
U
42441f
mA
mV
mV
mV
mV
mV
mV
mA
mV
mV
V
V
V
V
V
A
A
V
s
s