參數(shù)資料
型號: MAX746
廠商: Maxim Integrated Products, Inc.
英文描述: Parallel-Load 8-Bit Shift Registers 16-CDIP -55 to 125
中文描述: 高效率、PWM、降壓型、N溝道DC-DC控制器
文件頁數(shù): 3/16頁
文件大?。?/td> 157K
代理商: MAX746
M
High-Effic ienc y, PWM, S tep-Down,
N-Channel DC-DC Controller
_______________________________________________________________________________________
3
Note 1:
Note 2:
The soft-start fault current is the current sink capability of SS when V
REF
< 1V or when the device is in shutdown.
I
SUPP
is the supply current drawn by V+, which includes the current drawn by the charge pump. The charge pump
doubles the current drawn by HIGH from the V+ input, so I
SUPP
= I
V+
+ 2I
HIGH
.
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 10V, I
LOAD
= 0A, I
REF
= 0
μ
A, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER
SHDN Input Leakage Current
SYMBOL
MIN
TYP
MAX
UNITS
LBO Output Voltage Low
V
OL
nA
0.4
V
LBI Threshold Voltage
1.96
2.00
2.04
V
Compensation Pin Impedance
24
k
EXT Source Current
270
mA
LBI Input Leakage Current
nA
LBO Output Leakage Current
1
μ
A
SHDN Input Voltage Low
V
IL
0.4
V
SHDN Input Voltage High
V
IH
2.0
V
EXT Output Low
EXT Output High
V
HIGH
- 0.1
V
0.25
V
EXT Sink Current
160
mA
MAX746E/M
CONDITIONS
SHDN = 10V
I
SINK
= 0.5mA
LBI falling
V
HIGH
= 15V, V
EXT
= 2.5V
LBI = 2.5V
V+ = 15V, LBO = 15V, LBI = 2.5V
V
HIGH
forced to 15V, I
EXT
= -1mA
V
HIGH
forced to 15V, I
EXT
= 1mA
V
HIGH
= 15V, V
EXT
= 12.5V
MAX746C
1.97
2.00
2.03
100
0.1
100
Charge-Pump Output Voltage
Maximum Duty Cycle
91
96
%
V
HIGH
V+ + 4
V+ + 5
V+ + 6
V
V
LIMIT
125
150
175
mV
V+ = 6V
I
HIGH
= 0mA to 10mA
V+ – CS
Current-Sense Amplifier
Current-Limit Threshold
相關(guān)PDF資料
PDF描述
MAX746CPE Parallel-Load 8-Bit Shift Registers 16-CDIP -55 to 125
MAX746CSE Parallel-Load 8-Bit Shift Registers 20-LCCC -55 to 125
MAX746EPE Parallel-Load 8-Bit Shift Registers 16-CDIP -55 to 125
MAX746ESE Parallel-Load 8-Bit Shift Registers 16-CFP -55 to 125
MAX746MJE Parallel-Load 8-Bit Shift Registers 16-CDIP -55 to 125
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