參數(shù)資料
型號： MAX5022EUT
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： Current-Mode PWM Controllers for Isolated Power Supplies
中文描述： 0.25 A SWITCHING CONTROLLER, 290 kHz SWITCHING FREQ-MAX, PDSO6
封裝： MO178, SOT-23, 6 PIN
文件頁數(shù)： 2/11頁
文件大?。?/td> 240K
代理商： MAX5022EUT
M
Current-Mode PWM Controllers for Isolated
Power Supplies
2
_______________________________________________________________________________________
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
Continuous Power Dissipation (T
A
= +70
°
C)
6-Pin SOT23 (derate 8.7mW/
°
C above +70
°
C).............696mW
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)
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.
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
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
UNDERVOLTAGE LOCKOUT/STARTUP
Undervoltage Lockout Wakeup
Level
V
UVR
V
IN
rising
22
24
26
V
Undervoltage Lockout Shutdown
Level
V
UVF
V
IN
falling
9.3
10
10.9
V
V
IN
Supply Current at Startup
V
IN
Range
Undervoltage Lockout
Propagation Delay
I
START
V
IN
T
UVR
T
UVF
V
IN
= +22V
50
85
28
μA
V
11
V
IN
steps up from +9V to +26V
V
IN
steps down from +26V to +9V
5
1
μs
INTERNAL SUPPLY
V
CC
Regulator Set Point
V
CCSP
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
10.5
V
0.9
0.4
2.43
V
IN
Supply Current after Startup
I
IN
mA
GATE DRIVER
R
ON(LOW)
R
ON(HIGH)
Measured at NDRV sourcing 5mA
I
SINK
I
SOURCE
Measured at NDRV sinking 5mA
10
20
250
150
20
40
Driver Output Impedance
Driver Peak Sink Current
Driver Peak Source Current
PWM COMPARATOR
Comparator Offset Voltage
CS Input Bias Current
mA
mA
VO
PWM
I
CS
V
OPTO
- V
CS
600
-2
750
900
+2
mV
μA
Propagation Delay from
Comparator Input to NDRV
T
PWM
25mV overdrive
60
ns
Minimum On-Time
CURRENT-LIMIT COMPARATOR
Current-Limit Trip Threshold
T
ON(MIN)
150
ns
V
CS
540
600
660
mV
Current-Limit Propagation Delay
from Comparator Input to NDRV
T
CL
25mV overdrive
60
ns
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參數(shù)描述
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