參數(shù)資料
型號(hào)： MCP18480T-I/SS
廠商： Microchip Technology
文件頁數(shù)： 3/64頁
文件大?。?/td> 871K
描述： IC HOT SWAP CTRLR -48V 20SSOP
標(biāo)準(zhǔn)包裝： 1,600
類型： 熱交換控制器
應(yīng)用： IP 電話，LAN 網(wǎng)絡(luò)供電，網(wǎng)絡(luò)路由器和交換機(jī)
內(nèi)部開關(guān)： 無
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 20-SSOP（0.209"，5.30mm 寬）
供應(yīng)商設(shè)備封裝： 20-SSOP
包裝： 帶卷 (TR)
?2003 Microchip Technology Inc.
DS20091B-page 3
MCP18480
1.0    ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings
Ambient Temperature under bias........ 40癈 to +85癈
Storage Temperature ........................ 65癈 to +150癈
Voltage on V
POS
 with respect to V
NEG
-0.3V to +15.0V
Voltage on DV
TH
, UV
TH
, V
FB
, OVO and UV
HYS
 pins
with respect to V
NEG
.....V
NEG
  0.3V to (V
POS
 + 0.3V)
Voltage on V
REFIN
, CL, SENSE, DRAIN
TH
, ENABLE
and RESTART pins with respect to V
NEG
........................................................V
NEG
 - 0.3V to 6V.
Total Power Dissipation (Note 1) ....................800 mW
Max. Current out of V
NEG
 pin.............................80 mA
Max. Current into V
POS
 pin ................................50 mA
Max. Output Current sunk by Gate pin...............80 mA
Max. Output Current sunk by V
REFOUT
 pin..........5 mA
Max. Output Current sunk by any other
Output pin.........................................................25 mA
Max. Output Current sourced by Gate pin ........200 礎(chǔ)
Max. Output Current sourced by V
REFOUT
 pin .....5 mA
Max. Output Current sourced by any other
Output pin...........................................................25 mA
Junction to Ambient, ?/DIV>
JA
(20 pin SSOP Package) Derating ...............108.1癈/W
Junction to Case, ?/DIV>
JC
(20 pin SSOP Package) Derating .................32.2癈/W
Lead Temperature, Soldering, 10 seconds ........ 300癈
   Notice:  Stresses  above  those  listed  under  "Maximum
Ratings" may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at
those or any other conditions above those indicated in the
operation listings of this specification is not implied. Exposure
to maximum rating conditions for extended periods may affect
device reliability.
Note  1:  Power Dissipation is calculated as follows:
P
DIS
 = V
DD
 x {I
DD
 - ?I
OH
} + (V
DD
-V
OH
) x I
OH
} + ?V
OL
 x I
OL
)
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, operating temperature: 40?/SPAN>C d T
A
 d +85癈 (Industrial),
Supply Current: 5 mA d I
POS
 d 25 mA, R
ISET
 = 125 k&, C
BYP
 = 2 礔.
Param.
No.
Parameter
Sym
Min
Typ
(1)
Max
Units
Conditions
MD001
Current into shunt regulator
that produces V
POS
 output volt-
age that meets MD001A speci-
fication
I
POS1
5

25
mA    ENABLE pin = 5V
5

25
ENABLE pin = V
NEG
MD001A    Regulated Output Voltage
Differential of V
POS
 to V
NEG
V
POS
10.4
12.0
13.4
V
See MD001
MD002
V
REFOUT
 pin output voltage
V
REFOUT
2.463
2.5
2.538
V
Load = 50 礎(chǔ)
MD010
V
GATE
 pin output voltage
V
GATE
V
POS
 - 2
V
POS
 -1
V
POS
V
MD011
Voltage on I
SET
 pin
V
ISET
(V
REFIN
/2) -
0.02
V
REFIN
/2
(V
REFIN
/2)
+0.02
V
MD012A    Voltage on SENSE pin to
trigger current-limiting
V
SENSE
40
50
60
mV    V
FB
 = V
NEG
MD012B
25
31.0
40
mV    V
FB
 = V
NEG
 + 0.25V
MD012C
7
12
17
mV    V
FB
 = V
NEG
 + 0.5V
MD013
Undervoltage Threshold
UV
TH
V
REFIN
 
- 0.03
V
REFIN
V
REFIN
 
+ 0.03
V
MD014A    Overvoltage
Threshold
rising
OV
TH
V
REFIN
 
- 0.05
V
REFIN
V
REFIN
 
+ 0.05
V
V
REFIN
 = 2.5V
MD014B
falling
OV
TH
V
REFIN
 
- 0.035
V
REFIN
 
- 0.02
V
REFIN
 
- 0.005
V
V
REFIN
 = 2.5V
MD015
DRAIN Pin Input Threshold
Voltage
V
DTH
90
100
130
mV
Note  1:  Data in the Typical (Typ) column is based on characterization results at +25?/SPAN>C. This data is for design  guidance only
and is not tested.
2:  Negative current is defined as current sourced by the pin.
3:  All voltages are with respect to the V
NEG
 pin voltage.
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