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3V3 (Pin 1): Provides a 3.3V output from the onboard regulator.GND (Pins 14, 20, 26)5V (Pin 19): Provides 5V input to the development board.TX (Pin 23): Transmit pin for UART communication.RX (Pin 24): Receive pin for UART communication.EN (Pin 2): Enable pin to reset the controller.VP (Pin 3) and VN (Pin 4): ADC inputs for analog measurements.CMD, D0, D1, D2, D3, and CLK (Pins18,37,36,17,16,and38): User-configurable pins for special functionality.Reviews
Designators | Net | |
|---|---|---|
Designator | MPN | |
|---|---|---|
None |
Incomplete Info | |
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Unfair Tan Antigravity Battle Room
Controls
Properties
Availability & Pricing
| Distributor | Qty 1 | |
|---|---|---|
| Arrow | $4.59 | |
| Digi-Key | $18.26–$19.37 | |
| LCSC | $15.71–$15.75 | |
| Mouser | $13.05 | |
| Verical | $8.81–$9.17 | |
Assets
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slowtideroll
slowtideroll
slowtideroll
copilot
- Gate Driving: The primary role of U8 is to drive the gate of a MOSFET or IGBT. It can source and sink current to rapidly switch the gate.
- High-Speed: Capable of operating at high frequencies, making it suitable for applications like switch-mode power supplies (SMPS), motor drives, and power inverters.
- Low-Side Drive: It drives the gate of an N-channel MOSFET or IGBT that is connected to ground (low-side).
Key Specifications- Input Thresholds: Compatible with both TTL and CMOS logic levels, allowing direct interfacing with microcontrollers and digital logic.
- High Peak Output Current: It can source up to 4A and sink up to 8A, making it suitable for driving power MOSFETs or IGBTs.
- Fast Switching: Delivers short propagation delay and fast rise/fall times, which ensures efficient switching.
- Undervoltage Lockout (UVLO): Ensures reliable operation by disabling the output if the supply voltage drops below a certain threshold.
Pins Description- Pin 1 (VDD): Supply voltage input, typically connected to a 4.5V to 18V power source.
- Pin 2 (OUTH): High-output driver channel; for high-side applications, but not used often in low-side configurations.
- Pin 3 (OUTL): Low-output driver channel; this is typically connected to the gate of the MOSFET or IGBT.
- Pins 4 and 5 (GND): Ground connections that should be connected to the system ground.
- Pin 6 (IN-): Input signal that controls the gate driver's output. A logic high signal turns the MOSFET or IGBT on, while a logic low turns it off.
Typical Connection- Power Supply: Connect U8:VDD to a 12V or 5V power rail, depending on your system voltage.
- Ground: Connect U8:GND to system ground.
- Gate Drive Output: Connect U8:OUTL to the gate of an N-channel MOSFET.
- Input Signal: Connect U8:IN- to the control signal from a microcontroller or other digital source.
Example Connectionscopilot
- U8: Gate driver (UCC27511DBVR)
- Q1: MOSFET (AO3400A)
- U1: Microcontroller (ESP32-DEVKITC-32UE), for control signals
Assumptions- Power Supply Voltage (VDD): 12V
- Control Signal: From GPIO18 of U1
Connections-
Power Supply & Ground
- Connect U8:VDD to the 12V power rail.
- Connect U8:GND to the system ground.
-
Input Signal
- Connect U8:IN- to U1:GPIO18 (this GPIO will control the MOSFET).
-
Output to MOSFET Gate
- Connect U8:OUTL to Q1:G (the gate of the MOSFET).
-
MOSFET Source & Drain
- Connect Q1:S (source) to the system ground.
- Connect Q1:D (drain) to the load or the point in the circuit you want to control.
Detailed Step-by-Step Connections:-
Power Supply:
- Connect U8:VDD to a 12V power source.
- Connect U8:GND to the system ground.
-
Control Signal:
- Connect U8:IN- to U1:GPIO18. This GPIO pin will provide the control signal to turn the MOSFET on and off.
-
Gate Drive Output:
- Connect U8:OUTL to Q1:G (the gate of the MOSFET).
-
MOSFET Connections:
- Connect Q1:S to the system ground.
- Connect Q1:D to the load or the relevant part of your circuit.
Connection Summary- Connect U8:VDD to 12V power rail.
- Connect U8:GND to the system ground.
- Connect U8:OUTL to Q1:G.
- Connect U8:IN- to U1:GPIO18.
- Connect Q1:S to the system ground.
- Connect Q1:D to the load.
Exampleslowtideroll
slowtideroll
copilot
- Input Thresholds: Compatible with both TTL and CMOS logic levels.
- High Peak Output Current: It can source up to 5A and sink up to 6A, making it highly suitable for driving power MOSFETs or IGBTs.
- Fast Switching: Ensures efficient switching with short propagation delay and fast rise/fall times.
- Wide Supply Voltage Range: 4.5V to 35V, allowing flexible use in various applications.
- Automotive Qualification: Meets AEC-Q100 standards, enabling use in automotive environments.
Pins Description- Pin 1 (VDD): Supply voltage input, typically connected to a 4.5V to 35V power source.
- Pin 2 (OUT): Output driver channel; this is typically connected to the gate of the MOSFET.
- Pin 3 (GND): Ground connection that should be connected to the system ground.
- Pin 4 (IN): Input signal that controls the gate driver's output. A logic high signal turns the MOSFET on, while a logic low turns it off.
Typical Connection- Power Supply: Connect U8:VDD to a suitable power rail (e.g., 12V).
- Ground: Connect U8:GND to the system ground.
- Gate Drive Output: Connect U8:OUT to the gate of an N-channel MOSFET.
- Input Signal: Connect U8:IN to the control signal from a microcontroller or other digital source.
Example Connections- Power Supply (12V): Connect U8:VDD to a 12V power source.
- Ground: Connect U8:GND to the system ground.
- Gate: Connect U8:OUT to the gate of your MOSFET Q1:G.
- Control Signal: Connect U8:IN to the control GPIO pin (e.g., U1:GPIO18).
Final Connections- Power Supply: Connect U8:VDD to 12V power rail.
- Ground: Connect U8:GND to the system ground.
- Gate Drive Output: Connect U8:OUT to Q1:G.
- Input Signal: Connect U8:IN to U1:GPIO18.
- MOSFET Source & Drain: Connect Q1:S to the system ground and Q1:D to the load.
Connections Summary for MOSFET Using UCC27517AQDBVRQ1:copilot
- U8: Gate driver (UCC27517AQDBVRQ1)
- Q1: P-channel MOSFET
- U1: Microcontroller (ESP32-DEVKITC-32UE), for control signals
Assumptions:- Power Supply Voltage (VDD): 12V
- Control Signal: From GPIO18 of U1
Principle:-
Power Supply & Ground:
- Connect U8:VDD to the 12V power rail.
- Connect U8:GND to system ground.
-
Input Signal:
- Connect U8:IN to U1:GPIO18 (this GPIO will control the MOSFET).
-
Output to MOSFET Gate:
- Connect U8:OUT to Q1:G (the gate of the P-channel MOSFET).
-
MOSFET Source & Drain:
- Connect Q1:S (source) to the 12V supply.
- Connect Q1:D (drain) to the load or the point in the circuit you want to control.
Detailed Step-by-Step Connections:-
Power Supply:
- Connect U8:VDD to a 12V power source.
- Connect U8:GND to the system ground.
-
Control Signal:
- Connect U8:IN to U1:GPIO18. This GPIO pin will provide the control signal to turn the P-channel MOSFET on and off.
-
Gate Drive Output:
- Connect U8:OUT to Q1:G (the gate of the P-channel MOSFET).
-
MOSFET Connections:
- Connect Q1:S (source) to the 12V power supply.
- Connect Q1:D (drain) to the load or the relevant part of your circuit.
Connection Summary:- Connect U8:VDD to 12V power rail.
- Connect U8:GND to the system ground.
- Connect U8:OUT to Q1:G.
- Connect U8:IN to U1:GPIO18.
- Connect Q1:S to the 12V supply.
- Connect Q1:D to the load.
Example:slowtideroll
copilot
- Power (VDD/GND):
- Connect the gate driver's VDD to a suitable power rail (e.g., 12V).
- Connect the gate driver's GND to the system ground.
2. Connections:- Source (S) to Ground:
- Connect the source of the N-Channel MOSFET to the system ground.
- Drain (D) to Load:
- Connect the drain of the N-Channel MOSFET to one end of the load.
- Connect the other end of the load to the positive supply voltage (e.g., 12V).
- Gate (G) to Driver:
- Connect the gate driver's output to the gate of the N-Channel MOSFET.
3. Example Connections:- Connect U8:VDD to the 12V power rail.
- Connect U8:GND to the system ground.
- Connect U8:OUT to Q1:G.
- Connect Q1:S to the system ground.
- Connect Q1:D to the load, and the other end of the load to the 12V power rail.
- Connect U8:IN to U1:GPIO18 for control.
For P-Channel MOSFET:- Power (VDD/GND):
- Connect the gate driver's VDD to a suitable power rail (e.g., 12V) if it can handle high side drive or to the drain of the P-Channel MOSFET. Alternatively, use a PNP transistor or charge pump for high-side switching.
- Connect the gate driver's GND to the system ground.
2. Connections:- Source (S) to Power Rail:
- Connect the source of the P-Channel MOSFET to the positive supply voltage (e.g., 12V).
- Drain (D) to Load:
- Connect the drain of the P-Channel MOSFET to one end of the load.
- Connect the other end of the load to the system ground.
- Gate (G) to Driver (with Appropriate Biasing Network):
- Connect the gate driver's output to the gate of the P-Channel MOSFET.
- Use a pull-up resistor between the gate and source to ensure proper turning off of the MOSFET when the gate driver output is high.
3. Example Connections:- Connect U8:VDD to 12V power rail.
- Connect U8:GND to the system ground.
- Connect U8:OUT to Q1:G via a pull-up resistor (typically 10k to the 12V rail).
- Connect Q1:S to the 12V supply.
- Connect Q1:D to the load, with the other end of the load connected to ground.
- Connect U8:IN to U1:GPIO18 for control.
Example Circuit for P-Channel:-
Pull-up Resistor for Gate Turn-off:
- A 10kΩ resistor between Q1:G (gate) and Q1:S (source).
-
Gate Drive:
- Connect U8:OUT to Q1:G (gate).
-
Power Supply:
- Connect U8:VDD to 12V and U8:GND to ground.
Connection Summary: For N-Channel MOSFET:- Connect U8:VDD to 12V.
- Connect U8:GND to ground.
- Connect U8:OUT to Q1:G.
- Connect Q1:S to ground.
- Connect Q1:D to the load.
- Connect other end of the load to 12V.
For P-Channel MOSFET: