参数资料
型号: MAX5021EUA+T
厂商: Maxim Integrated Products
文件页数: 2/11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: 2,500
PWM 型: 电流模式
输出数: 1
频率 - 最大: 290kHz
占空比: 51%
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: 带卷 (TR)
Current-Mode PWM Controllers for Isolated
Power Supplies
ABSOLUTE MAXIMUM RATINGS
V IN to GND .............................................................-0.3V to +30V
V CC to GND ............................................................-0.3V to +13V
NDRV to GND.............................................-0.3V to (V CC + 0.3V)
CS, OPTO to GND ....................................................-0.3V to +6V
NDRV Short-Circuit to GND........................................Continuous
8-Pin μMAX (derate 4.5mW/ ° C above +70 ° C) ..............362mW
8-Pin PDIP (derate 9.1mW/ ° C above +70 ° C)................727mW
Operating Temperature Range ...........................-40 ° C to +85 ° C
Storage Temperature Range .............................-55 ° C to +150 ° C
Lead Temperature (soldering 10s) ..................................+300 ° C
Continuous Power Dissipation (T A = +70 ° C)
6-Pin SOT23 (derate 8.7mW/ ° C above +70 ° C).............696mW
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(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
UNDERVOLTAGE LOCKOUT/STARTUP
Undervoltage Lockout Wakeup
Level
Undervoltage Lockout Shutdown
Level
V IN Supply Current at Startup
V UVR
V UVF
I START
V IN rising
V IN falling
V IN = +22V
22
9.3
24
10
50
26
10.9
85
V
V
μA
V IN Range
Undervoltage Lockout
Propagation Delay
V IN
T UVR
T UVF
V IN steps up from +9V to +26V
V IN steps down from +26V to +9V
11
5
1
28
V
μs
INTERNAL SUPPLY
V CC Regulator Set Point
V IN Supply Current after Startup
V CCSP
I IN
V IN = +11V to +28V, sourcing 1μA to 5mA
from V CC
V IN = +28V, OPTO connected to GND
V IN = +28V, OPTO unconnected (Note 2)
7.0
0.9
0.4
10.5
2.43
V
mA
GATE DRIVER
Driver Output Impedance
Driver Peak Sink Current
Driver Peak Source Current
R ON(LOW) Measured at NDRV sinking 5mA
R ON(HIGH) Measured at NDRV sourcing 5mA
I SINK
I SOURCE
10
20
250
150
20
40
?
mA
mA
PWM COMPARATOR
Comparator Offset Voltage
VO PWM
V OPTO - V CS
600
750
900
mV
CS Input Bias Current
Propagation Delay from
Comparator Input to NDRV
Minimum On-Time
I CS
T PWM
T ON(MIN)
25mV overdrive
-2
60
150
+2
μA
ns
ns
CURRENT-LIMIT COMPARATOR
Current-Limit Trip Threshold
Current-Limit Propagation Delay
from Comparator Input to NDRV
V CS
T CL
25mV overdrive
540
600
60
660
mV
ns
2
_______________________________________________________________________________________
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