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SC1146CSW 数据表(PDF) 2 Page - Semtech Corporation

部件名 SC1146CSW
功能描述  VRM9.0 PROGRAMMABLE, MULTI-PHASE, HIGH PERFORMANCE PWM CONTROLLER
PDF  10 Pages
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制造商  SEMTECH [Semtech Corporation]
网页  http://www.semtech.com
标志 SEMTECH - Semtech Corporation

SC1146CSW 数据表(HTML) 2 Page - Semtech Corporation

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VRM9.0 PROGRAMMABLE, MULTI-PHASE,
HIGH PERFORMANCE PWM CONTROLLER
SC1146
© 2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
July 25, 2000
2
The SC1146 is patent pending
ELECTRICAL CHARACTERISTICS
Unless otherwise noted: T
A = 25°C, VCC 5V = 5V, VCC2 = 5V, 4-Phase operation.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage Range
V
CC2
3.9
5.0
15.0
V
UVLO Range
V
CC5V
3.9
5.0
6.0
V
UVLO Hystersis
V
CC5V
TBD
mV
Supply Voltage Range
V
CC5V
4.5
5.0
5.5
V
Supply Current
V
CC2
DRV Outputs open
10
mA
Supply Current
V
CC5V
V
OUT = 2.00V, IO = 0
40
mA
Reference Current Pin Voltage
V
REF
Iref = 250µA
2.05
V
VID0-4 Clock Select & Divide
V
INL
Logic Low
0.8
V
Select Logic Threshold
V
INH
Logic High
2
V
VID0-4 Clock Select & Divide
I
INL
Vid0-4 = 0V
-20
µA
Select Input Bias Current
I
INH
Vid0-4 = 4.5V
+50
µA
Enable Pin
V
INL
.8
V
V
INH
2V
Maximum Duty Cycle
D
MAX
FB = 0V
75
%
DRV0-3 Output Voltage
V
OL
I
sink = 1mA
.3
V
V
OH
I
source = 1mA, PW RGOOD = Vcc5v
V
CC2-1
V
DRV0-3 Source Current
I
SRC
V
OUT
= 2.00V
40
mA
DRV0-3 Sink Current
I
SNK
V
OUT
= 2.00V
20
mA
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Limits
Units
V
CC5V to GND
V
cc5v
-0.3 to + 12
V
FBG to GND
FBG
± 1
V
V
CC2 to GND
V
cc2
-0.3 to +20
V
Operating Temperature Range
T
A
0 to +70
°C
Junction Temperature Range
T
J
0 to +125
°C
Storage Temperature Range
T
STG
-55 to +150
°C
Thermal Resistance Junction to Case
θ
JC
25
°C/W
Thermal Resistance Junction to Ambient
θ
JA
80
°C/W
Lead Temperature (Soldering) 10 sec
T
LEAD
300
°C



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