JAJSM08A december 2022 – june 2023 TPS281C30
PRODUCTION DATA
Component | Description | Purpose |
D1 | SMBJ60CA | Clamp surge voltages at the supply input |
D2 | SMBJ36CA (Optional) | Clamp surge voltages at the supply output |
CIN1 | 100nF | Stabilize the input supply and filter out low frequency noise. |
CIN2 | 4.7nF | Filtering of voltage transients (for example, ESD, IEC 61000-4-5) and improved emissions. |
RPROT | 10kΩ | Protection resistor for microcontroller and device I/O pins - Optional for reverse polarity protection |
RILIM | 7.5kΩ – 50kΩ | Set current limit threshold |
RSNS | 500-2000 | Translate the sense current into sense voltage. |
CSNS | 1nF | Coupled with RPROT on the SNS line creates a low pass filter to filter out noise going into the ADC of the MCU. |
CVOUT | 22nF | Improves EMI performance, filtering of voltage transients |
RGND | 1kΩ | Stabilize GND potential during turn-off of inductive load - Optional for reverse polarity protection |
DGND | BAS21 Diode | Keeps GND close to system ground during normal operation - Optional for reverse polarity protection |