參數(shù)資料
型號(hào): LT1640HIN8#PBF
廠商: Linear Technology
文件頁(yè)數(shù): 4/16頁(yè)
文件大?。?/td> 192K
描述: IC CONTRLR HOTSWAP NEGVOLT 8-DIP
標(biāo)準(zhǔn)包裝: 50
類型: 熱交換控制器
應(yīng)用: 通用
內(nèi)部開關(guān):
電源電壓: -10 V ~ -80 V
工作溫度: -40°C ~ 85°C
安裝類型: 通孔
封裝/外殼: 8-DIP(0.300",7.62mm)
供應(yīng)商設(shè)備封裝: 8-PDIP
包裝: 管件
4
LT1640L/LT1640H
1640lhfb
TYPICAL PERFOR A CE CHARACTERISTICS
W
Gate Voltage vs Temperature
TEMPERATURE (癈)
12.0
13.0
14.0
15.0
12.5
13.5
14.5
25
0
75
1640 G04
100
50
25
50
TEMPERATURE (癈)
50
48
49
51
52
53
55
25
0
50
1640 G05
50
54
100
25
75
TEMPERATURE (癈)
50
48
47
46
45
44
43
42
41
40
75
1640 G06
25
100
50
25
0
V
GATE
 = 0V
Gate Pull-Up Current
vs Temperature
Gate Pull-Down Current
vs Temperature
TEMPERATURE (癈)
50
49
52
55
75
1640 G07
46
43
40
25
0
25
50
100
V
GATE
 = 2V
PWRGD Output Low Voltage
vs Temperature (LT1640L)
TEMPERATURE (癈)
50
0.3
0.4
0.5
75
1640 G08
0.2
0.1
0
25
25
0
50
100
I
OUT
 = 1mA
TEMPERATURE (癈)
50
2
3
4
5
6
7
8
25
25
0
50
75
1  4
100
V
DRAIN
  V
EE
 > 2.4V
PWRGD Output Impedance
vs Temperature (LT1640H)
Circuit Breaker Trip Voltage
vs Temperature
pin which pulls the modules enable pin low, forcing it off.
When V
DRAIN
 drops below V
PG
, the PWRGD sink current
is turned off and a 6.5k resistor is connected between
PWRGD and DRAIN, allowing the modules pull-up cur-
rent to pull the enable pin high and turn on the module.
OV
 
(Pin 2): Analog Overvoltage Input. When OV is pulled
above the 1.223V low to high threshold, an overvoltage
condition is detected and the GATE pin will be immediately
pulled low. The GATE pin will remain low until OV drops
below the 1.203V high to low threshold.
PIN FUNCTIONS
U
U
PWRGD/PWRGD (Pin 1): Power Good Output Pin. This pin
will toggle when V
DRAIN
 is within V
PG
 of V
EE
. This pin can
be connected directly to the enable pin of a power module.
When the DRAIN pin of the LT1640L is above V
EE
 by more
than V
PG
, the PWRGD pin will be high impedance, allowing
the pull-up current of the modules enable pin to pull the
pin high and turn the module off. When V
DRAIN
 drops
below V
PG
, the PWRGD pin sinks current to V
EE
, pulling
the enable pin low and turning on the module.
When the DRAIN pin of the LT1640H is above V
EE
 by more
than V
PG
, the PWRGD pin will sink current to the DRAIN
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LT1640L 制造商:LINER 制造商全稱:Linear Technology 功能描述:Negative Voltage Hot Swap Controller