SM72445 Datasheet, PDF (6/19 Pages) Texas Instruments – Programmable Maximum Power Point Tracking Controller With Adjustable PWM Frequency

Symbol
Parameter
Conditions
PWM OUTPUT CHARACTERISTICS (Continued)
A2 Low Frequency Setting:
f_PWM
t_DEAD
PWM switching frequency
Dead time
Min
Typ
Max Units
85
110
125
kHz
106
ns
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under which operation
of the device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions,
see the Electrical Characteristics tables.
Note 2: The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin.
Note 3: Min and Max limits are production tested at 25°C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality
Control (SQC) methods.
Note 4: Not tested. Guaranteed by design.
Typical Performance Characteristics
Typical performance curves reflect the performance of the SM72445 as designed into the SM3320–1A1 reference design, and
are provided for reference purposes only. Unless otherwise stated the following conditions apply: T_J = 25°C.
Typical Efficiency, Vmp 33V
Peak Efficiency vs Vmp
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Peak Efficiency vs Temperature
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Frequency Temperature Dependence
1.025
1.020
1.015
1.010
1.005
1.000
0.995
0.990
0.985
0.980
0.975
-40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
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