LTC1422 Linear Technology, LTC1422 Datasheet - Page 2

• Manufacturer Part Number: LTC1422
• Description: Hot Swap Controller
• Manufacturer: Linear Technology

ABSOLUTE
LTC1422
(Note 1)
Supply Voltage (V
Input Voltage (TIMER, SENSE) ... – 0.3V to (V
Input Voltage (FB, ON) ........................... – 0.3V to 13.2V
Output Voltage (RESET) ........................ – 0.3V to 13.2V
Output Voltage (GATE) ............................. – 0.3V to 20V
Operating Temperature Range
Storage Temperature Range ................ – 65 C to 150 C
Lead Temperature (Soldering, 10 sec)................. 300 C
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
SYMBOL
DC Characteristics
I
V
V
V
V
V
V
I
V
I
V
V
V
V
I
t
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
2
CC
TM
CP
PU
RST
LKO
LKH
FB
FBHST
TM
TMHST
CB
ONHI
ONLO
ONHYST
OL
V
V
V
FB
TM
GATE
LTC1422C ............................................... 0 C to 70 C
LTC1422I ........................................... – 40 C to 85 C
PARAMETER
V
V
V
FB Pin Voltage Threshold
FB Pin Threshold Line Regulation
FB Pin Voltage Threshold Hysteresis
TIMER Pin Voltage Threshold
TIMER Pin Threshold Line Regulation
TIMER Pin Voltage Threshold Hystersis
TIMER Pin Current
Circuit Breaker Trip Voltage
GATE Pin Output Current
External N-Channel Gate Drive
ON Pin Threshold High
ON Pin Threshold Low
ON Pin Hysteresis
Output Low Voltage
Logic Output Pull-Up Current
Soft Reset Time
CC
CC
CC
Supply Current
Undervoltage Lockout
Undervoltage Lockout Hysteresis
W
CC
MAXIMUM
) ........................................... 13.2V
W W
RATINGS
CONDITIONS
ON = V
3V V
3V V
Timer On, GND V
Timer Off, V
V
Charge Pump On, V
Charge Pump Off, V
V
RESET, I
RESET = GND
U
CB
GATE
A
CC
= (V
= 25 C. V
– V
CC
CC
CC
+ 0.3V)
CC
O
CC
The
= 3mA
– V
12V
12V
TIMER
SENSE
CC
denotes the specifications which apply over the full operating
= 1.5V
TIMER
= 5V unless otherwise noted.
GATE
GATE
)
PACKAGE/ORDER I FOR ATIO
Consult factory for Military grade parts.
= GND
= V
1.5V
CC
RESET
TIMER
GND
N8 PACKAGE
8-LEAD PDIP
T
T
ON
JMAX
JMAX
1
2
3
4
= 150 C,
= 150 C,
TOP VIEW
JA
8-LEAD PLASTIC SO
JA
= 130 C/W (N)
= 150 C/W (S)
S8 PACKAGE
8
7
6
5
V
SENSE
GATE
FB
CC
1.220
1.208
2.40
– 2.5
1.25
1.20
MIN
– 12
44
10
22
U
1.232
1.232
– 2.0
0.65
2.47
– 10
1.30
1.23
0.14
– 12
TYP
120
0.5
2.0
S8 PART MARKING
45
10
50
12
80
30
2
10
ORDER PART
LTC1422CN8
LTC1422CS8
LTC1422IN8
LTC1422IS8
NUMBER
W
1.244
1.256
MAX
– 1.5
1.00
2.55
1.35
1.26
1422
1422I
2.5
0.4
– 8
15
64
14
38
UNITS
U
mA
mV
mV
mV
mV
mV
mA
mV
mA
mV
V
V
V
A
A
V
V
V
V
A
s