MAX5020ESA-T Maxim Integrated Products, MAX5020ESA-T Datasheet - Page 3

• Manufacturer Part Number: MAX5020ESA-T
• Description: Current Mode PWM Controllers w/Integrated Startup
• Manufacturer: Maxim Integrated Products

Specifications of MAX5020ESA-T

• Number Of Outputs: 1
• Duty Cycle (max): 50 %
• Output Current: 1000 mA
• Mounting Style: SMD/SMT
• Package / Case: SOIC-8 Narrow
• Switching Frequency: 275 KHz
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Synchronous Pin: No
• Topology: Flyback, Forward

(V+ = 48V, V
ELECTRICAL CHARACTERISTICS (continued)
(V
= open circuit, V
SLOPE COMPENSATION
Slope Compensation
(MAX5019 only)
THERMAL SHUTDOWN
Thermal Shutdown Temperature
Thermal Hysteresis
CURRENT LIMIT
CS Threshold Voltage
CS Input Bias Current
Current Limit Comparator
Propagation Delay
CS Blanking Time
OSCILLATOR
Clock Frequency Range
Max Duty Cycle
SOFT-START
SS Source Current
SS Sink Current
Steady State Reference Voltage
at SS_SHDN
Shutdown Threshold
DD
Current-Mode PWM Controllers with Integrated
1.003
1.002
1.000
0.999
1.001
= 13V, a 10µF capacitor connects V
-40
PARAMETER
(AT THE END OF SOFT-START)
DD
V
-20
SS_SHDN
= 13V, CS = GND, NRDV is open circuit, T
FB
V
FB
TEMPERATURE (°C)
0
= 4V
= 3V, T
vs. TEMPERATURE
_______________________________________________________________________________________
20
A
40
= -40°C to +85°C, unless otherwise noted. Typical values are at T
60
V
SYMBOL
V
SS
80
SCOMP
V
I
_SHDN
SSO
ILIM
CC
to GND, V
278
277
276
275
274
273
FB = GND
0 ≤ V
50mV overdrive on CS, FB = GND
FB = GND, only PWM comparator is blanked
FB = GND
MAX5019, FB = GND
MAX5020, FB = GND
V
No external load
V
V
SS_SHDN
SS_SHDN
SS_SHDN
-40
CS
CS
-20
≤ 2V, FB = GND
A
= 0, V+ = 48V, 0.1µF capacitor connected from SS_SHDN to GND, NDRV
= +25°C, unless otherwise noted.)
= 0
falling
rising
vs. TEMPERATURE
NDRV FREQUENCY
TEMPERATURE (°C)
0
FB = GND
CONDITIONS
20
Typical Operating Characteristics
40
60
80
Startup Circuit
81.0
80.9
80.8
80.7
80.6
80.5
80.4
A
= +25°C.)
-40
2.331
0.25
0.53
MIN
419
247
2.0
1.0
75
44
-1
-20
MAXIMUM DUTY CYCLE
vs. TEMPERATURE
2.420
TYP
0.37
0.59
150
465
180
275
TEMPERATURE (°C)
4.5
0
26
25
70
MAX5019
FB = GND
20
2.500
MAX
0.41
0.65
510
302
6.5
85
50
40
1
60
UNITS
mV/µs
kHz
mV
mA
µA
µA
°C
°C
ns
ns
%
V
V
80
3