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參數(shù)資料
| 型號： | SC1406A |
| 廠商： | Semtech Corporation |
| 英文描述： | PORTABLE PENTIUM II & III POWER SUPPLY CONTROLLER |
| 中文描述： | 便攜式奔騰II |
| 文件頁數(shù)： | 5/17頁 |
| 文件大?。?/td> | 175K |
| 代理商： | SC1406A |
SC1406A
2000 SEMTECH CORP.
652 MITCHELL ROAD
NEWBURY PARK CA 91320
PORTABLE PENTIUM
II & III
POWER SUPPLY CONTROLLER
January 28, 2000
ELECTRICAL CHARACTERISTICS (CONT.)
5
Pentium is a registered trademark of Intel Corporation
Unless specified: -0 < T
A
< 100°C; V
CC
= 3.3V (See test circuit)
PARAMETER
SYMBOL
CORE CONVERTER CONTROLLER
CONDITIONS
MIN
TYP
MAX UNITS
Core Converter Soft Start Current
Core Converter Soft Start Current
I
SSCORE
Charge (Source) current
0.6
1
1.45
μA
Discharge (Sink) current
0.30
1
mA
V
Soft Start Termination
Threshold
V
SSCORE
Discharge Threshold
VID DAC
VID Input Threshold
V
SSTERM
1.53
1.70
1.87
V
V
SSDIS
150
400
mV
V
VID_IH
V
VID_IL
I
VID
3.0V < V
CC
< 3.6V
0.7*V
CC
V
0.8
40
VID Input-Pull-up Current,VID (0-4)
VID (0-4) = 00000...11111
6
μA
Output Voltage Accuracy
V
DAC_ERR
t
pdVID_DAC
I
DAC
= 0, VID(0-4) = 00000...11111
C
= 1000pF
VID is set to change VCORE from
1.30V to 1.45V or 1.45V to 1.30V
-0.85
+0.85
%
Settling Time*
35
μs
CORE Comparator (CMP, CMPREF, HYS, CO)
Input Bias Current
I
BCMP
V
CPM-
V
CMP
= V
CMPREF
= 1.3V
V
CMPREF
= 1.3V
±2
μA
Input Offset Voltage
VCPMREF
±1.5
±3
mV
Hysteresis Setting Current
R
HYS
= open
+2
I
CMPREF
R
HYS
= 17k
R
HYS
= 170k
±85
+100 +115
μA
±7
+10
+13
Output Voltage
V
HCO
CMP<CMPREF
V
LCO
Load Impedance = 100k in
parallel with 10pF, V
CC
= 3.0V
Load Impedance = 100k in
parallel with 10pF, V
CC
= 3.6V
V
CMPREF
= 1.3V
V
CMP
= +40mV
step with +20mV, overdrive
T
= 25°C,
T
A
= full range
V
CMPREF
= 1.3V
V
CMP
= 40mV
step with 20mV overdrive,
T
= 25°C,
T
A
= full range
C
CO
= 10pF
V
CC
= 3.0V
2.5
V
CMP>CMPREF
T
pd CMP-CO
0.4
V
Propagation Delay Time**
Measured at device pins, from the
trip point to 50% of CO transition.
20
30
ns
20
30
10
Output Rise/Fall Times**
Measured between 30% and 70%
points of CO transition
T
R
7
ns
T
F
R
CO
= 100K
7
10
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