MAX5053AEUA+ Maxim Integrated Products, MAX5053AEUA+ Datasheet - Page 3

• Manufacturer Part Number: MAX5053AEUA+
• Description: IC CNTRLR PWM CRNT MD 8-UMAX
• Manufacturer: Maxim Integrated Products

Specifications of MAX5053AEUA+

• Pwm Type: Current Mode
• Number Of Outputs: 1
• Frequency - Max: 290kHz
• Duty Cycle: 50%
• Voltage - Supply: 10.8 V ~ 24 V
• Buck: No
• Boost: Yes
• Flyback: No
• 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: 1000 mA
• Mounting Style: SMD/SMT
• Switching Frequency: 262 KHz
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Synchronous Pin: No
• Topology: Boost, Flyback
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(V
V
otherwise noted.) (Note 1)
Note 1: All devices are 100% tested at T
Note 2: V
Note 3: The MAX5052 is intended for use in universal input power supplies. The internal clamp circuit is used to prevent the boot-
UVLO
CURRENT-LIMIT COMPARATOR
Current-Limit Trip Threshold
CS Input Bias Current
Propagation Delay From
Comparator Input to NDRV
Switching Frequency
Maximum Duty Cycle
V
V
ERROR AMPLIFIER
Voltage Gain
Unity-Gain Bandwidth
Phase Margin
FB Input Offset Voltage
COMP Pin Clamp Voltage
Source Current
Sink Current
Reference Voltage
Input Bias Current
COMP Short-Circuit Current
THERMAL SHUTDOWN
Thermal-Shutdown Temperature
Thermal Hysteresis
DIGITAL SOFT-START
Soft-Start Duration
Reference Voltage Steps During
Soft-Start
Reference Voltage Step
IN
IN
IN
Amplifier for Isolated/Nonisolated Power Supplies
= +12V (for MAX5052, V
CLAMP VOLTAGE
Clamp Voltage
= +1.4V, V
strap capacitor (C1 in Figure 1) from charging to a voltage beyond the absolute maximum rating of the device when
EN/UVLO is low. The maximum current to V
limited to 2mA, max. Clamp currents higher than 2mA may result in clamp voltage higher than 30V, thus exceeding the
absolute maximum rating for V
REF
PARAMETER
is measured with FB connected to the COMP pin (see Functional Diagram).
FB
Current-Mode PWM Controllers with an Error
= +1.0V, V
_______________________________________________________________________________________
IN
COMP
must first be brought up to 23.6V for startup), 10nF bypass capacitors at V
= floating, V
SYMBOL
IN
D
t
V
V
V
PWM
f
I
A
. For the MAX5053, do not exceed the 24V maximum operating voltage of the device.
MAX
SW
REF
CS
INC
CS
= +85°C. All limits over temperature are guaranteed by characterization.
CS
V
50mV overdrive
MAX505_A
MAX505_B
2mA sink current, MAX5052 only (Note 3)
R
R
R
High
Low
(Note 2)
CS
LOAD
LOAD
LOAD
IN
= 0V, typical values are measured at T
= 0V
(hence to clamp) when UVLO is low (device in shutdown) must be externally
= 100k
= 100k , C
= 100k , C
CONDITIONS
LOAD
LOAD
= 200pF
= 200pF
A
= +25°C, T
1.218
24.1
MIN
262
230
2.2
0.4
0.5
0.5
-2
A
15,872
1.230
= -40°C to + 85°C, unless
TYP
26.1
291
262
130
60
50
75
80
65
25
31
40
IN
2
8
and V
1.242
MAX
50.5
29.0
320
290
3.5
1.1
CC
+2
76
50
3
, C
NDRV
degrees
UNITS
cycles
steps
clock
MHz
kHz
mV
mV
mA
mA
mA
mV
dB
µA
nA
°C
°C
ns
%
V
V
V
= 0,
3