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L6206PD Folha de dados(PDF) 13 Page - STMicroelectronics |
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L6206PD Folha de dados(HTML) 13 Page - STMicroelectronics |
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13 / 23 page ![]() 13/23 L6206 APPLICATION INFORMATION A typical application using L6206 is shown in Fig. 12. Typical component values for the application are shown in Table 2. A high quality ceramic capacitor in the range of 100 to 200 nF should be placed between the power pins (VSA and VSB) and ground near the L6206 to improve the high frequency filtering on the power supply and reduce high frequency transients generated by the switching. The capacitors connected from the ENA/OCDA and ENB/OCDB nodes to ground set the shut down time for the Brgidge A and Bridge B respectively when an over current is detected (see Overcurrent Protection). The two current sources (SENSEA and SENSEB) should be connected to Power Ground with a trace length as short as possible in the layout. To increase noise immu- nity, unused logic pins are best connected to 5V (High Logic Level) or GND (Low Logic Level) (see pin descrip- tion). It is recommended to keep Power Ground and Signal Ground separated on PCB. Table 2. Component Values for Typical Application Figure 12. Typical Application C1 100uF D1 1N4148 C2 100nF D2 1N4148 CBOOT 220nF RCLA 5K Ω CP 10nF RCLB 5K Ω CENA 5.6nF RENA 100k Ω CENB 5.6nF RENB 100k Ω CREF 68nF RP 100 Ω CP CBOOT RP D2 D1 C2 OUT1A LOADA LOADB OCDA OCDB 1 5 21 18 19 8 16 OUT2A GND GND GND GND PROGCLA OUT2B OUT1B VSA POWER GROUND SIGNAL GROUND + - VS 8-52VDC 4 VSB VCP VBOOT C1 SENSEA 20 IN1A IN2A IN1A IN2A 2 6 7 9 ENA ENB CENB RENB RENA ENA ENB 23 IN2B 12 IN1B IN2B IN1B 11 14 24 17 3 15 22 SENSEB RCLA 10 CENA PROGCLB 13 RCLB D02IN1344 |
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