參數(shù)資料
型號: SC1155EVB
廠商: Semtech Corporation
英文描述: PROGRAMMABLE SYNCHRONOUS DC/DC HYSTERETIC CONTROLLER WITH VRM 9.0 VID RANGE
中文描述: 可編程同步DC / DC控制器,電源模組采用滯回西元范圍9.0
文件頁數(shù): 8/19頁
文件大小: 190K
代理商: SC1155EVB
SC1155
PROGRAMMABLE SYNCHRONOUS
DC/DC HYSTERETIC CONTROLLER
WITH VRM 9.0 VID RANGE
2000 SEMTECH CORP.
PRELIMINARY - August 7, 2000
8
DYNAMIC ELECTRICAL CHARACTERISTICS (cont.)
Unless specified: 0 < T
J
< 125° C, VIN12V = 12V
PARAMETER
HIGH-SIDE Vds SENSING (Cont.)
(1)
POWER GOOD
(1)
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Comparator Propagation
Delay
SOFTSTART
(1)
t
PWRGD
1
μs
Comparator Propagation
Delay
DEADTIME
(2)
t
SLST
overdrive = 10mv
560
900
ns
Driver Nonoverlap Time
t
NOL
C
= 9nF, 10% threshold
on LOWDR
30
100
ns
LODRV
(1)
Propagation Delay
t
LODRVDLY
400
ns
Notes
(1) Guaranteed, but not tested.
(2) Test circuit and timing diagram.
(3) This device is ESD sensitive. Use of standard ESD handling precautions is required.
TEST CIRCUIT
TIMING DIAGRAM
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參數(shù)描述
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