Part Number: AMC6821 Tool/software: Hi,
Is there any IC that can generate 25kHz PWM from 0 to 100% duty cycle?
Application if fan speed control.
PWM duty cycle should be adjusted by adjusting analog voltage at one of the pin.
No communication with micro…
Part Number: AMC6821 Other Parts Discussed in Thread: LM96000 Tool/software: Hi,
My customer is looking to replace Microchip’s PWM fan controller EMC2305
Requirements: they need at least 2 PWM controllers and 4 TACH inputs
The cross tool recommended…
Part Number: AMC6821-Q1 Other Parts Discussed in Thread: AMC6821 Tool/software: Hello Experts:
Could we use AMC6821SQDBQRQ1 only set 3.3V voltage level with from 100 to 20khz , 8bit PWM signal output drive our LED backlight driver IC ?
If yes. can IN…
Part Number: AMC6821 Tool/software: Hi,
I'm experiencing occasional reading errors from the AMC6821, to which a 3-wire fan is attached.
Readings to TACH DATA are executed by multiple bytes reading starting from 0x08. The fan runs at fixed rpm (around…
Part Number: AMC6821-Q1 Tool/software: Hi Team,
Based on below post that I2C communication is blocked within spin-up time(2 sec).
=> AMC6821-Q1: Cannot control when chip initialize early
=> We encounter the same issue and after 2 sec, the I2C write…
Part Number: AMC6821 Other Parts Discussed in Thread: LM63 Team,
The AMC6821 datasheet shows max RPM as 23K RPM.
What happens if the fan RPM is greater than 23K RPM (like 25K or 33K RPM)?
Will the device just show 23K RPM or trigger an error?
Is there…
Part Number: AMC6821 Hi,
The default register map of AMC6821 (and AMC6821-Q1) points that the Fan Control Mode is "Auto remote-temperature-fan control" (FDRC1 and FDRC0 bits in Configuration Register 1, address 0x00)
However, the START bit (bit…
Part Number: AMC6821 Hi,
I'm trying to measure the rpm from the tacho signal with an amc6821, using a 3 pin PWM fan (1200 mm, max rpm = 3100), however, I'm unable to get it to not surge during the measurements (my issues are similar those described in…
Part Number: AMC6821 Hello Sensors team,
In the AMC6821 datasheet, the I2C timing is described as follows:
https://www.ti.com/lit/ds/symlink/amc6821.pdf?ts=1687500081885
Is this timing what the AMC will provide back to the I2C controller (master)…
