參數(shù)資料
型號： LTC1422IS8#PBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 電源管理
英文描述： Hot Swap Controller; Package: SO; No of Pins: 8; Temperature Range: -40°C to +85°C
中文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝： 0.150 INCH, PLASTIC, SO-8
文件頁數(shù)： 9/16頁
文件大?。?/td> 193K
代理商： LTC1422IS8#PBF
2
LTC1422
1422fb
Consult LTC Marketing for parts specified with wider operating temperature ranges.
WU
U
PACKAGE/ORDER I FOR ATIO
ORDER PART
NUMBER
TJMAX = 150°C, θJA = 130°C/W (N)
TJMAX = 150°C, θJA = 150°C/W (S)
1
2
3
4
8
7
6
5
TOP VIEW
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
RESET
ON
TIMER
GND
VCC
SENSE
GATE
FB
Supply Voltage (VCC) ........................................... 13.2V
Input Voltage (TIMER, SENSE) ... – 0.3V to (VCC + 0.3V)
Input Voltage (FB, ON) ........................... – 0.3V to 13.2V
Output Voltage (RESET) ........................... – 0.3V to 20V
Output Voltage (GATE) ............................. – 0.3V to 20V
Operating Temperature Range
LTC1422C ............................................... 0
°C to 70°C
LTC1422I ........................................... – 40
°C to 85°C
Storage Temperature Range ................ – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300
°C
ABSOLUTE MAXIMUM RATINGS
W
WW
U
LTC1422CN8
LTC1422CS8
LTC1422IN8
LTC1422IS8
S8 PART MARKING
ELECTRICAL CHARACTERISTICS
1422
1422I
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
DC Characteristics
ICC
VCC Supply Current
ON = VCC
q
0.65
1.00
mA
VLKO
VCC Undervoltage Lockout
q
2.40
2.47
2.55
V
VLKH
VCC Undervoltage Lockout Hysteresis
120
mV
VFB
FB Pin Voltage Threshold
q
1.220
1.232
1.244
V
VFB
FB Pin Threshold Line Regulation
3V
≤ VCC ≤ 12V
q
0.5
2.5
mV
VFBHST
FB Pin Voltage Threshold Hysteresis
2.0
mV
VTM
TIMER Pin Voltage Threshold
q
1.208
1.232
1.256
V
VTM
TIMER Pin Threshold Line Regulation
3V
≤ VCC ≤ 12V
q
215
mV
VTMHST
TIMER Pin Voltage Threshold Hystersis
45
mV
ITM
TIMER Pin Current
Timer On, GND
≤ VTIMER ≤ 1.5V
q
– 2.5
– 2.0
– 1.5
A
Timer Off, VTIMER = 1.5V
10
mA
VCB
Circuit Breaker Trip Voltage
VCB = (VCC – VSENSE)
q
44
50
64
mV
ICP
GATE Pin Output Current
Charge Pump On, VGATE = GND
q
–12
– 10
– 8
A
Charge Pump Off, VGATE = VCC
10
mA
VGATE
External N-Channel Gate Drive
VGATE – VCC
q
10
12
14
V
VONHI
ON Pin Threshold High
q
1.25
1.30
1.35
V
VONLO
ON Pin Threshold Low
q
1.20
1.23
1.26
V
VONHYST
ON Pin Hysteresis
80
mV
VOL
Output Low Voltage
RESET, IO = 3mA
q
0.14
0.4
V
IPU
Logic Output Pull-Up Current
RESET = GND
– 12
A
tRST
Soft Reset Time
q
22
30
48
s
The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V unless otherwise noted.
(Note 1)
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
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