COMBOSOLAR datasheet(21/57 Pages) TI1

21 / 57 page

SET

100 nF

47 F

PA Supply

PA_VS1

PA_VS2

T_SENSE

PA_OUT1

PA_OUT2

PA_ISET

PA_GND1

PA_IN

Power

Amplifier

Inside the AFE031

PA_VS1

PA_VS2

T_SENSE

PA_OUT1

PA_OUT2

PA_ISET

PA_GND1

PA_IN

Power

Amplifier

Inside the AFE031

AFE031

www.ti.com

SBOS531D – AUGUST 2010 – REVISED MAY 2012

BLOCK DESCRIPTIONS

PA Block

The Power Amplifier (PA) block consists of a high slew rate, high-voltage, and high-current operational amplifier.

The PA is configured with an inverting gain of 6.5 V/V, has a low-pass filter response, and maintains excellent

linearity and low distortion. The PA is specified to operate from 7 V to 24 V and can deliver up to ±1.5 A of

continuous output current over the specified junction temperature range of –40°C to +125°C. Figure 25 illustrates

the PA block.

Figure 25. PA Block Equivalent Circuit

Connecting the PA in a typical PLC application requires only two additional components: an ac coupling

capacitor, CIN, and the current limit programming resistor, RSET. Figure 26 shows the typical connections to the

PA block.

Figure 26. Typical Connections to the PA

Product Folder Link(s): AFE031

COMBOSOLAR 数据表(PDF) 21 Page - Texas Instruments

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