參數(shù)資料
型號(hào)： MCP18480
廠商： Microchip Technology Inc.
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： -48V Hot Swap Controller
中文描述： - 48V熱插拔控制器
文件頁(yè)數(shù)： 3/64頁(yè)
文件大?。?/td> 871K
代理商： MCP18480
2003 Microchip Technology Inc.
DS20091B-page 3
MCP18480
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings
Ambient Temperature under bias........–40°C to +85°C
Storage Temperature ........................ –65°C to +150°C
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 μA
Max. Output Current sourced by V
REFOUT
pin.....5 mA
Max. Output Current sourced by any other
Output pin...........................................................25 mA
Junction to Ambient,
Θ
JA
(20 pin SSOP Package) Derating ...............108.1
°
C/W
Junction to Case,
Θ
JC
(20 pin SSOP Package) Derating .................32.2
°
C/W
Lead Temperature, Soldering, 10 seconds ........300
°
C
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
-
Σ
I
OH
} +
Σ
{(V
DD
-V
OH
) x I
OH
} +
Σ
(V
OL
x I
OL
)
DC CHARACTERISTICS
Electrical Specifications:
Unless otherwise specified, operating temperature: –40
°
C
≤
T
A
≤
+85
°
C (Industrial),
Supply Current: 5 mA
≤
I
POS
≤
25 mA, R
ISET
= 125 k
, C
BYP
= 2 μF.
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
REFOUT
pin output voltage
V
GATE
pin output voltage
Voltage on I
SET
pin
V
POS
10.4
12.0
13.4
V
See MD001
MD002
V
REFOUT
V
GATE
V
ISET
2.463
2.5
2.538
V
Load = 50 μA
MD010
V
POS
- 2
(V
REFIN
/2) -
0.02
V
POS
-1
V
REFIN
/2
V
POS
(V
/2)
+0.02
V
MD011
V
MD012A
Voltage on SENSE pin to
trigger current-limiting
V
SENSE
40
50
60
mV
V
FB
= V
NEG
V
FB
= V
NEG
+ 0.25V
V
FB
= V
NEG
+ 0.5V
MD012B
25
31.0
40
mV
MD012C
7
12
17
mV
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
1:
Data in the Typical (“Typ”) column is based on characterization results at +25
°
C. This data is for design guidance only
and is not tested.
V
DTH
90
100
130
mV
Note
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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