max5069aauet Maxim Integrated Products, Inc., max5069aauet Datasheet - Page 4

• Manufacturer Part Number: max5069aauet
• Description: Max5069 High-frequency, Current-mode Pwm Controller With Accurate Oscillator And Dual Fet Drivers
• Manufacturer: Maxim Integrated Products, Inc.

ELECTRICAL CHARACTERISTICS (continued)
(V
C
High-Frequency, Current-Mode PWM Controller
with Accurate Oscillator and Dual FET Drivers
4
Note 1: The MAX5069 is 100% tested at T
Note 2: The MAX5069A/B are intended for use in universal-input power supplies. The internal clamp circuit is used to prevent the
Note 3: Reference voltage (V
Note 4: The SYNC frequency must be at least 25% higher than the programmed oscillator frequency.
Note 5: The internal oscillator clock cycle.
NDRV_ Switching Frequency
RT Voltage
Oscillator Accuracy
Maximum Duty Cycle
DEAD-TIME CONTROL (DT)
Dead Time
Dead-Time Disable Voltage
Dead-Time Regulation Voltage
INTEGRATING FAULT PROTECTION (FLTINT)
FLTINT Source Current
FLTINT Shutdown Threshold
FLTINT Restart Threshold
SLOPE COMPENSATION
Slope Compensation
Slope-Compensation Range
Slope-Compensation Voltage
Range
VCC
IN
_______________________________________________________________________________________
= +12V for the MAX5069C/D, V
= 1µF, R
bootstrap capacitor (C1 in
UVLO/EN is low. The maximum current to V
ly limited to 2mA. Clamp currents higher than 2mA may result in clamp voltages higher than 30V, thus exceeding the
absolute maximum rating for V
PARAMETER
RT
= 100kΩ, NDRV_ = floating, T
REF
) is measured with FB connected to COMP (see the Functional Diagram).
V
Figure
V
V
DT_DISABLE
SYMBOL
IN
V
FLTINT_SD
FLTINT_RS
V
V
I
IN
SLOPER
D
FLTINT
SCOMP
SLOPE
= +23.6V for the MAX5069A/B at startup, then reduces to +12V, C
V
V
f
t
. For the MAX5069C/D, do not exceed the 24V maximum operating voltage of the device.
MAX
SW
DT
RT
DT
A
1) from charging to a voltage beyond the absolute maximum rating of the device when
= +25°C. All limits over temperature are guaranteed by design.
A
= T
f
40kΩ < R
T
T
DT connected to REG5
R
V
V
V
C
SW
MIN
A
A
FLTINT
FLTINT
FLTINT
DT
SLOPE
IN
= +25°C
= -40°C to +125°C
= 10
(hence to clamp) when UVLO is low (device is in shutdown) must be external-
= 24.9kΩ
to T
MAX
= 0V
rising
falling
= 100pf, RT = 110kΩ
11
RT
/ (2 x R
, unless otherwise noted. Typical values are at T
< 500kΩ
CONDITIONS
RT
)
f
f
f
f
OSC
OSC
OSC
OSC
≤ 500kHz
> 500kHz
≤ 500kHz
> 500kHz
V
REG5
0.5V
MIN
-2.5
-4.5
25
-4
-6
0
0
-
TYP
1.23
100
2.0
2.8
1.6
60
60
15
A
IN
= +25°C.) (Note 1)
= C
MAX
1250
+2.5
+4.5
2.7
+4
+6
90
REG5
= 0.1µF,
UNITS
mV/µs
mV/µs
kHz
µA
ns
%
%
V
V
V
V
V
V