SM72441MT

Manufacturer Part NumberSM72441MT
DescriptionProgrammable Maximum Power Point Tracking Controller for Photovoltaic Solar Panels
ManufacturerTI1 [Texas Instruments]
SM72441MT datasheet
 


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Pin Descriptions
Pin
Name Description
1
RST
Active low signal. External reset input signal to the digital circuit.
2
NC1
No Connect. This pin should be grounded.
3
VDDD Digital supply voltage. This pin should be connected to a 5V supply, and bypassed to VSSD with a 0.1uF monolithic
ceramic capacitor.
4
VSSD Digital ground. The ground return for the digital supply and signals.
5
NC2
No Connect. This pin should be pulled up to the 5V supply using 10k resistor.
6
NC3
No Connect. This pin should be grounded using a 10k resistor.
7
NC4
No Connect. This pin should be grounded using a 10k resistor.
8
NC5
No Connect. This pin should be pulled up to 5V supply using 10k resistor.
9
NC6
No Connect. This pin should be pulled up to 5V supply using 10k resistor.
10
NC7
No Connect. This pin should be grounded.
11
LED
LED pin outputs a pulse during normal operation.
12
VDDA Analog supply voltage. This voltage is also used as the reference voltage. This pin should be connected to a 5V supply,
and bypassed to VSSA with a 1uF and 0.1uF monolithic ceramic capacitor.
13
VSSA Analog ground. The ground return for the analog supply and signals.
14
A0
A/D Input Channel 0. Connect a resistor divider to 5V supply to set the maximum output voltage. Please refer to
application section for more information on setting the resistor value.
15
AVIN
A/D Input to sense input voltage.
16
A2
A/D Input Channel 2. Connect a resistor divider to 5V supply to set MPPT update rate. Please refer to application
section for more information on setting the resistor value.
17
AVOUT A/D Input to sense the output voltage.
18
A4
A/D Input Channel 4. Connect a resistor divider to 5V supply to set the maximum output current. Please refer to
application section for more information on setting the resistor value.
19
AIIN
A/D Input to sense input current.
20
A6
A/D Input Channel 6. Connect a resistor divider to 5V supply to set the maximum output voltage slew rate. Please
refer to application section for more information on setting the resistor value.
21
AIOUT A/D Input to sense the output current.
22
NC8
No Connect. This pin should be grounded using a 10k resistor.
23
NC9
No Connect. This pin should be connected with 150k pull-up resistor to 5V supply.
24
LIB
Low side boost PWM output.
25
HIB
High side boost PWM output.
26
HIA
High side buck PWM output.
27
LIA
Low side buck PWM output.
28
OVP
Overvoltage Protection Pin. Active Low. SM72441 will reset once voltage on this pin drops below its threshold voltage.
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