参数资料
型号: MAX5003ESE+T
厂商: Maxim Integrated Products
文件页数: 4/16页
文件大小: 0K
描述: IC REG CTRLR FLYBK ISO VM 16SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
PWM 型: 电压模式
输出数: 1
频率 - 最大: 1.2MHz
占空比: 75%
电源电压: 11 V ~ 110 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
包装: 带卷 (TR)
High-Voltage PWM
Power-Supply Controller
ELECTRICAL CHARACTERISTICS (continued)
(V+ = V ES = V DD = +12V, V INDIV = 2V, V CON = 0, R FREQ = R MAXTON = 200k ? , T A = T MIN to T MAX , unless otherwise noted. Typical
values are at T A = +25°C.)
PARAMETERS
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
PWM OSCILLATOR
MAXTON Resistor Range
Maximum On-Time Range
R MAXTON
t ON
R MAXTON = 200k ? , V INDIV = 1.25V
50
7.5
500
k ?
μs
Input Voltage Feed Forward
Ratio
V INDIV stepped from 1.5V to 1.875V, V CON =
3.0V (Note 3)
0.72
0.8
0.88
RAMP Voltage Low
V INDIV = 1.875V
0.48
0.5
0.53
V
RAMP Voltage High
Minimum On-Time
SOFT-START
2.5
200
V
ns
SS Source Current
SS Sink Current
V SS = 0.5V, V DD = unconnected, V CON = 1.5V
V SS = 0.4V (Note 4)
3.4
5.5
10
9
μA
mA
SS Time
PWM COMPARATOR
0.45
s/μF
CON Bias Current
I CON
V CON = 0.5V and 2.5V
-1
0.01
1
μA
THERMAL SHUTDOWN
Thermal Shutdown Temperature
Thermal Hysteresis
See the Typical Operating Characteristics for preregulator current-to-voltage characteristics.
Note 1:
Maximum time FREQ can be held below V IL and still remain in external mode.
Note 2:
Feed-forward Ratio = Duty cycle at (V INDIV = 1.5V)/Duty cycle at (V INDIV = 1.875V)
Note 3:
Occurs at start-up and until V REF is valid.
Note 4:
150
20
°C
°C
Typical Operating Characteristics
(V DD = +12V, R FREQ = 200k ? , R MAXTON = 200k ? , T A = +25°C, unless otherwise noted.)
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
0.8
FB SET-POINT VOLTAGE CHANGE
vs. TEMPERATURE
0.100
0.075
0.050
0.025
0
-0.025
-0.050
-0.075
-0.100
FB SET-POINT VOLTAGE CHANGE
vs. SUPPLY VOLTAGE
0.40
0.20
0
-0.20
-0.40
-0.60
-0.80
-1.00
-1.20
SWITCHING FREQUENCY CHANGE
vs. TEMPERATURE
-20
0
20
40
60
80
100
11
12
13
14
15
16
17
18
-40
-20
0
20
40
60
80
100
TEMPERATURE ( ° C)
V DD (V)
TEMPERATURE ( ° C)
4
_______________________________________________________________________________________
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