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TMC9660 Datasheet(PDF) 84 Page - Analog Devices |
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TMC9660 Datasheet(HTML) 84 Page - Analog Devices |
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84 / 101 page  TMC9660 70V Smart Gate Driver with Servo (FOC) Controller in HW and Buck Converter www.analog.com Analog Devices | 84 Configuration Storage A given configuration can be stored in OTP memory to be applied automatically on bootup. This enables automatically starting the TMC9660 in the desired configuration. The configuration can be stored in OTP memory to automatically apply it on power-on. To store a configuration, they can be burnt into one of the first four pages of the OTP with a page tag value of 4. The bootloader then checks the first four pages for such a configuration, going backwards from page 3 to page 0. The first valid configuration found is then applied. This allows burning the pages from 0 to 3 for a total of four times, allowing the updating of the burnt configuration. If the bootloader finds a 2-bit ECC error before finding a valid configuration, it will assert the FAULTN pin and enter bootloader mode with the default configuration. The following table shows examples of how the bootloader determines its initial configuration: PAGE 0 PAGE 1 PAGE 2 PAGE 3 BOOTLOADER BEHAVIOR Empty Empty Empty Empty Load default configuration values Configured Empty Empty Empty Load configuration from page 0 Configured Configured Empty Empty Load configuration from page 1 2-Bit Error 2-Bit Error 2-Bit Error Configured Load configuration from page 3 Empty Empty 2-Bit Error Empty Fault and load default configuration Configured 2-Bit Error Empty Empty Fault and load default configuration 2-Bit Error Configured Configured 2-Bit Error Fault and load default configuration Configuration List LDO Configuration NAME OFFSET BITS DESCRIPTION VEXT1 0 0-1 Sets the voltage the LDO shall output on the VEXT1 pin: 0: LDO disabled 1: 2.5V 2: 3.3V 3: 5.0V VEXT2 0 2-3 Sets the voltage the LDO shall output on the VEXT2 pin: 0: LDO disabled 1: 2.5V 2: 3.3V 3: 5.0V SS_VEXT1 0 4-5 Sets the VEXT1 voltage slope speed, controlling the startup time: 0: 3ms 1: 1.5ms 2: 0.75ms 3: 0.37ms SS_VEXT2 0 6-7 Sets the VEXT2 voltage slope speed, controlling the startup time: 0: 3ms 1: 1.5ms 2: 0.75ms 3: 0.37ms LDO_SHORT_FAULT 0 8 Controls whether a detected LDO short asserts the FAULTN pin. Default: 0 Bootstrap Configuration |
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