参数资料
型号: MAX5022EUA+
厂商: Maxim Integrated Products
文件页数: 3/11页
文件大小: 0K
描述: IC REG CTRLR FLYBK ISO PWM 8UMAX
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
PWM 型: 电流模式
输出数: 1
频率 - 最大: 290kHz
占空比: 76%
电源电压: 11 V ~ 28 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: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
包装: 管件
Current-Mode PWM Controllers for Isolated
Power Supplies
ELECTRICAL CHARACTERISTICS (continued)
(V IN = +11V to +28V, V CS = 0, OPTO is unconnected, 10nF bypass capacitors at V IN and V CC , NDRV unconnected, T A = -40 ° C to
+85 ° C, unless otherwise noted. Typical values are at V IN = +12V, T A = +25 ° C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OSCILLATOR
Switching Frequency
Maximum Duty Cycle
f SW
D MAX
MAX5021
MAX5022
230
262
50
75
290
51
76
kHz
%
OPTO INPUT
OPTO Pullup Voltage
V OPTO
OPTO sourcing 10μA
5.5
V
OPTO Pullup Resistance
R OPTO
4.5
6.2
7.9
k ?
Note 1: All devices are 100% tested at T A = +25 ° C. All limits over temperature are guaranteed by characterization.
Note 2: This minimum current after startup is a safeguard that prevents the V IN pin voltage from rising in the event
that OPTO and NDRV become unconnected.
Typical Operating Characteristics
(V IN = 15V, T A = +25 ° C, unless otherwise noted.)
24.3
UNDERVOLTAGE LOCKOUT
vs. TEMPERATURE
V IN RISING
10.2
UNDERVOLTAGE LOCKOUT
vs. TEMPERATURE
53
STARTUP CURRENT
vs. TEMPERATURE
24.2
10.1
V IN FALLING
52
51
V IN = 23.0V
24.1
24.0
23.9
10.0
9.9
9.8
50
49
48
47
-40
-20
0
20
40
60
80
-40
-20
0
20
40
60
80
-40
-20
0
20
40
60
80
TEMPERATURE ( ° C)
TEMPERATURE ( ° C)
TEMPERATURE ( ° C)
_______________________________________________________________________________________
3
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MAX5022EUA-T 功能描述:电流型 PWM 控制器 for Isolated Power Supplies RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14
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