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参数资料
| 型号： | SC1154CSW |
| 厂商： | Semtech Corporation |
| 英文描述： | PROGRAMMABLE SYNCHRONOUS DC/DC HYSTERETIC CONTROLLER FOR ADVANCED PROCESSORS |
| 中文描述： | 可编程同步DC / DC滞控制器的先进的处理器 |
| 文件页数： | 15/18页 |
| 文件大小： | 164K |
| 代理商： | SC1154CSW |
SC1154
PROGRAMMABLE SYNCHRONOUS
DC/DC HYSTERETIC CONTROLLER
FOR ADVANCED PROCESSORS
2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
PRELIMINARY - March 1, 2000
6
ELECTRICAL CHARACTERISTICS (cont.)
Unless specified: 0 < T
J < 125°C, VIN12V = 12V
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
HIGH-SIDE VDS SENSING (cont.)
V
HISENSE = 4.5V,
R
IOUT = 10kOhm
02.0
V
HISENSE = 3V, RIOUT = 10kOhm
0
1.0
V
LOSENSE High Level Input
Voltage
Vih
LOSENSE
V
HISENSE = 4.5V (Note 1)
2.85
V
LOSENSE Low Level Input
Voltage
Vil
LOSENSE
V
HISENSE = 4.5V (Note 1)
1.8
V
Sample/Hold Resistance
R
S/H
4.5V < = 13V
50
65
80
BUFFERED REFERENCE
VREFB Load Regulation
Vldreg
REFB
10A < I
REFB < 500A
2
mV
DEADTIME CIRCUIT
LOHIB High Level Voltage
Vih
LOHIB
2V
LOHIB Low Level Input
Voltage
Vil
LOHIB
1.0
V
LOWDR High Level Input
Voltage
Vih
LOWDR
(Note 1)
2
V
LOWDR Low Level Input
Voltage
Vil
LOWDR
(Note 1)
1.0
V
DRIVE REGULATOR
Output Voltage
V
DRV
11.4 < VIN12V < 12.6V,
I
DRV = 50mA
79
V
Load Regulation
Vldreg
DRV
1mA < I
DRV < 50mA
100
mV
Short Circuit Current
Ishort
DRV
100
mA
HIGH-SIDE OUTPUT DRIVER
Peak Output Current
Isrc
HIGHDR’
Isink
HIGHDR
duty cycle < 2%, tpw < 100us,
T
J = 125°C
V
BOOT - VBOOTLO = 6.5V, VHIGHDR
= 1.5V (src), or V
HIGHDR = 5V
(sink) (Note 1)
2
A
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