GP9101-F10K-L2H1-SW
APC (Analog to PWM Converter)
characteristic
Linear conversion of analog voltage input from 0V to VCC to 0% -100%
PWM signal output for air ratio.
Frequency range of output PWM signal: 1Hz to 1MHz
Maximum PWM duty cycle error:<1% (0.5%, 0.1%)
PWM duty cycle linearity error<0.5% (0.2%, 0.1%)
Power supply voltage: 4.5V -5.5V
Power consumption:<5mA
Start time:<2ms
Working temperature: -40 ° C to 85 ° C, -40 ° C to 125 ° C
describe
GP9101 is an analog signal to PWM signal converter, equivalent to a
ADC for PWM signal output. This chip can convert analog electricity from 0V to VCC
The voltage is linearly converted into a PWM signal with a duty cycle of 0% to 100%, and the duty cycle
The linear error of the ratio is less than 0.5%.
Attention: Please ensure that DATASHEET is the latest version downloaded from the official website.
application
DC motor speed regulation
LED dimming
Industrial analog signal isolation
Inverter
Power supply
2. Absolute maximum rated parameter
Industrial operating temperature: -40 ℃ to 125 ℃
Storage temperature: -50 ℃ to 125 ℃
Input voltage: -0.3 v VCC+0.3 v
Maximum voltage: 8 V
ESD protection:>4000 v
*Exceeding the parameter values listed in the "Absolute Maximum Rating" may cause permanent damage to the equipment. Not guaranteed
Verify that the device operates beyond the conditions listed in the specifications. Long term exposure to extreme conditions may affect the design
Backup reliability or function
After the analog voltage is amplified by an operational amplifier, the VIN voltage range for GP9101 is controlled within 0V-VCC
Within, the duty cycle of the PWM signal can be obtained as: DPWM=(VI * R2/R1)/VCC,
This scheme not only achieves analog voltage isolation, but also makes the output PWM signal very easy to collect.
This is a Potentiometer controlled LED color temperature dimming circuit. The Potentiometer generates 0V to 5V
VIN voltage, and connect the VCC pin to 5V, then GP9101 can generate a pair based on the input voltage
Complementary PWM and PWMB signals control MOS through changes in PWM and PWMB duty cycle
The disconnection of the tube enables LED color temperature adjustment.
5 www.guestgood.com
December 17, 2019 V1.7
4. Chip working mode
GP9101 is a high-performance APC chip (analog to PWM converter) that outputs PWM signals
The frequency can be selected from 1Hz to 1MHz. Input voltage range is 0V to VCC, output PWM and
The duty cycle of the PWMB signal is 0% to 100%, and the duty cycle of the PWM signal is related to the input voltage
The system is as follows: DPWM=VIN/VCC.
Remarks on communication characteristics:
1. The PWM signal frequency can be adjusted within the range of 1Hz to 1MHz, with a default value of 1KHz.
2. PWM duty cycle is defined as the average duty cycle, and due to cycle jitter, the duty cycle of each cycle is not completely equal
Same as.
3. Jitter is the ratio of the peak to peak deviation of a cycle to the average value of the cycle. PWM jitter at a frequency of 1KHz
measure
