MAX5021EUA+ Maxim Integrated Products, MAX5021EUA+ Datasheet - Page 2
![IC CNTRLR PWM CRNT MD 8-UMAX](/photos/1/39/13936/406-8-msop_sml.jpg)
MAX5021EUA+
Manufacturer Part Number
MAX5021EUA+
Description
IC CNTRLR PWM CRNT MD 8-UMAX
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX5021EUTT.pdf
(11 pages)
Specifications of MAX5021EUA+
Pwm Type
Current Mode
Number Of Outputs
1
Frequency - Max
290kHz
Duty Cycle
51%
Voltage - Supply
11 V ~ 28 V
Buck
No
Boost
No
Flyback
Yes
Inverting
No
Doubler
No
Divider
No
Cuk
No
Isolated
Yes
Operating Temperature
-40°C ~ 85°C
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Frequency-max
290kHz
Duty Cycle (max)
50 %
Output Current
250 mA
Mounting Style
SMD/SMT
Switching Frequency
262 KHz
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Synchronous Pin
No
Topology
Flyback, Forward
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
ABSOLUTE MAXIMUM RATINGS
V
V
NDRV to GND.............................................-0.3V to (V
CS, OPTO to GND ....................................................-0.3V to +6V
NDRV Short-Circuit to GND........................................Continuous
Continuous Power Dissipation (T
Current-Mode PWM Controllers for Isolated
Power Supplies
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
+85°C, unless otherwise noted. Typical values are at V
2
UNDERVOLTAGE LOCKOUT/STARTUP
CURRENT-LIMIT COMPARATOR
IN
CC
Undervoltage Lockout Wakeup
Level
Undervoltage Lockout Shutdown
Level
V
V
Undervoltage Lockout
Propagation Delay
INTERNAL SUPPLY
V
V
GATE DRIVER
Driver Output Impedance
Driver Peak Sink Current
Driver Peak Source Current
PWM COMPARATOR
Comparator Offset Voltage
CS Input Bias Current
Propagation Delay from
Comparator Input to NDRV
Minimum On-Time
Current-Limit Trip Threshold
Current-Limit Propagation Delay
from Comparator Input to NDRV
6-Pin SOT23 (derate 8.7mW/°C above +70°C).............696mW
IN
IN
IN
CC
IN
to GND .............................................................-0.3V to +30V
_______________________________________________________________________________________
to GND ............................................................-0.3V to +13V
= +11V to +28V, V
Supply Current at Startup
Range
Supply Current after Startup
Regulator Set Point
PARAMETER
CS
= 0, OPTO is unconnected, 10nF bypass capacitors at V
A
= +70°C)
R
R
SYMBOL
I
T
SOURCE
ON(LOW)
VO
ON(HIGH)
I
V
ON(MIN)
I
T
V
START
V
T
T
SINK
V
CCSP
T
V
I
PWM
UVR
UVF
UVR
UVF
I
CS
IN
PWM
CS
CL
IN
V
V
V
V
V
V
from V
V
V
Measured at NDRV sinking 5mA
Measured at NDRV sourcing 5mA
V
25mV overdrive
25mV overdrive
IN
IN
IN
IN
IN
IN
IN
IN
OPTO
CC
rising
falling
= +22V
steps up from +9V to +26V
steps down from +26V to +9V
= +11V to +28V, sourcing 1µA to 5mA
= +28V, OPTO connected to GND
= +28V, OPTO unconnected (Note 2)
IN
CC
+ 0.3V)
- V
= +12V, T
CS
CONDITIONS
A
= +25°C, unless otherwise noted.) (Note 1)
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-55°C to +150°C
Lead Temperature (soldering 10s) ..................................+300°C
8-Pin µMAX (derate 4.5mW/°C above +70°C) ..............362mW
8-Pin PDIP (derate 9.1mW/°C above +70°C)................727mW
IN
and V
CC
, NDRV unconnected, T
MIN
600
540
9.3
7.0
0.9
0.4
22
11
-2
TYP
250
150
750
150
600
24
10
50
10
20
60
60
5
1
MAX
10.9
10.5
2.43
900
660
+2
26
85
28
20
40
A
= -40°C to
UNITS
mA
mA
mA
mV
mV
µA
µA
µs
ns
ns
ns
V
V
V
V