SM72445_15 Datasheet, PDF (2/20 Pages) Texas Instruments – SM72445 Programmable Maximum Power Point Tracking Controller With Adjustable PWM Frequency

SM72445
SNVS795 – MARCH 2012
www.ti.com
PV(+)
Rsen_in
PM DRIVER
Vo
Current Sensing Amplifier
Gate 2
R
5V
RT1
PV(-) ^{0.01 PF}
R
RT2
RT3
RT4
nF
1 nF
RB1
1 nF
1 nF
RB2
RB3
RB4
CONFIGURATION RESISTOR
PM DRIVER
0.01 PF
5V
2.2 PF
49.9:
VDDA
VDDD
AVIN
AIIN
NC3
NC1
AIOUT
A0
HIB
A2
LIB
A4
HIA
A6
LIA
5V
10k
SM72445
NC2
2k
SCL
2k
SDA
10k _I2C0
10k _I2C1
10k _I2C2
NC4
RST
PM
AVOUT
PM_OUT
VSSA
VSSD
0.01 PF
2.2 PF
Gate 1
Current Sensing Amplifier
Current Sensing Amplifier
5V
60.4k
10k
10k
PWM4
PWM3
PWM2
PWM1
RFB1
RFB2
H-Bridge Driver
Figure 2. Typical Application Circuit
CONNECTION DIAGRAM
1
RST
2
NC1
3 _VDDD
4 _VSSD
5 _NC2
6 _I2C0
7 _I2C1
8 _SCL
9 _SDA
10 _NC3
11 _{PM_OUT}
12
VDDA
13 _VSSA
14 _A0
SM72445
28
PM
LIA ²⁷
HIA ²⁶
HIB ²⁵
LIB ²⁴
NC4 ²³
I2C2 ²²
AIOUT ²¹
A6 ²⁰
AIIN ¹⁹
A4 ¹⁸
AVOUT ¹⁷
A2 ¹⁶
AVIN ¹⁵
Figure 3. Top View - TSSOP-28
Gate 4
Vo
Rsen_out
Gate 3
Current sensing Amplifier
Gate 4
Gate 3
Gate 2
Gate 1
2
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