Schematic for H-Bridge ESC + Radio: An all in one programmable...

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please explain what U2 does.

meghajnbarhate

@copilot please explain what U2 does.

copilot

The component with the designator

U2

is an IR2101, a high-voltage, high-speed power MOSFET and IGBT driver. It is manufactured by Infineon Technologies. This component is typically used to drive the gates of power transistors such as MOSFETs or IGBTs in applications like motor drives, power supplies, and other power control systems.

Key Features of the IR2101:

High-Side and Low-Side Driver: It can drive both the high-side and low-side MOSFETs. This is useful when controlling the switching of an H-Bridge, as in your project.
Bootstrap Operation: It uses a bootstrap capacitor connected between the VB and VS pins to provide the necessary gate drive voltage for the high-side MOSFET.
Under-Voltage Lockout (UVLO): It ensures that the MOSFETs are not turned on until the supply voltage is high enough for reliable operation.
Matched Propagation Delays: This helps in minimizing the dead time between high-side and low-side switching, reducing the chances of short-circuiting through the MOSFETs.

Pin Functions:

VCC (Pin 1): Supply voltage for the control logic.
HIN (Pin 2) and LIN (Pin 3): Logic inputs for the high-side and low-side driver. These determine whether the corresponding MOSFET is on or off.
COM (Pin 4): Common ground for the logic and signal terminals.
LO (Pin 5): Output to drive the gate of the low-side MOSFET.
VS (Pin 6): Return path for the high-side gate drive, usually connected to the source of the high-side MOSFET.
HO (Pin 7): Output to drive the gate of the high-side MOSFET.
VB (Pin 8): Supply voltage for the high-side driver, derived from the bootstrap capacitor.

In your schematic,

U2

likely interfaces to control both the high and low-side MOSFETs in an H-Bridge configuration, driving a brushed motor for your FPV RC car project.

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Capacitance

1uF

Motor+

INPUT1

Resistance

4.7k Ω

VCC

Capacitance

1uF

SDA

VCC

CH3

Motor-

End of Life

Resistance

100 Ω

Resistance

100 Ω

VCC

End of Life

pin6

pin4

Resistance

100 Ω

Resistance

100 Ω

SCL

ENABLE

VCC5vH

VCC5V

Capacitance

1uF

Resistance

4.7k Ω

Capacitance

1uF

Motor+

VCC

Motor-

Capacitance

1000µ F

Reviews

Electrical Rule Checks

Missing Footprints

Reports parts that have no footprint.

Design Rule Checks

Overlapping Copper • 14

Des	Net	Des	Net
Trace 8bbe	Net 17	Via	Net 2
Q6:E	Net 20	Q6:B	Net 25
Q6:E	Net 20	Q6:2	None
Q6:E	Net 20	Q6:3	None
Trace 8be6	Net 20	Q6:3	None
Q6:C	Net 22	Q6:B	Net 25
3Pin Dupont-std:+	Net 43	Trace b7dc	Net 26
3Pin Dupont-std:PWM	Net 43	Trace c9ca	Net 26
Q6:1	None	Q6:C	Net 22
Q6:1	None	Trace e6e8	Net 25
Q6:2	None	Q6:C	Net 22
Q6:2	None	Q6:B	Net 25
Q6:2	None	Trace e6e8	Net 25
Q6:3	None	Q6:B	Net 25

Invalid Layer

Reports nodes that are assigned to a layer that doesn't exist in the layout stackup.

Component Overrides • 41

	Designator	Ruleset
	Q6:1	Override rule for 1
	Q6:B	Override rule for B
	Q6:C	Override rule for C
	Q6:E	Override rule for E
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	D-PAK_IRLR7843TRPBF_INF	Override rule for D-PAK_IRLR7843TRPBF_INF
	D-PAK_IRLR7843TRPBF_INF	Override rule for D-PAK_IRLR7843TRPBF_INF
	D-PAK_IRLR7843TRPBF_INF	Override rule for D-PAK_IRLR7843TRPBF_INF
	D-PAK_IRLR7843TRPBF_INF	Override rule for D-PAK_IRLR7843TRPBF_INF
	K	Override rule for K
	K	Override rule for K
	K	Override rule for K
	K	Override rule for K
	K	Override rule for K
	K	Override rule for K
	K	Override rule for K
	K	Override rule for K
	K	Override rule for K
	K	Override rule for K
	K	Override rule for K
	K	Override rule for K

Airwires • 8

	Designators	Net
	3Pin Dupont-std:+, 3Pin Dupont:+	Net 22
	3Pin Dupont-std:+, 3Pin Dupont-std:+	Net 22
	3Pin Dupont-std:+, 3Pin Dupont-std:+	Net 22
	3Pin Dupont-std:+, 3Pin Dupont-std:+	Net 22
	3Pin Dupont-std:+, 3Pin Dupont-std:+	Net 22
	Q6:C, 3Pin Dupont-std:+	Net 22
	U4:OUT, 3Pin Dupont-std:+	Net 22
	3Pin Dupont-std:+, 3Pin Dupont-std:PWM	Net 43

Deprecated Rules

Reports nodes that are using rules that are not supported anymore.

Layers with Multiple Fills

Reports layers that have multiple copper fills of different nets. Make sure the Connected Layers rule value of nets with fills is valid.

Floating Copper • 6

	Name
	Via
	Via
	Via
	Via
	Trace 8553
	Trace 62c1, Trace a5f7, Trace a5b9, Trace 7a55, Trace a157, Trace b55e, Trace c9ca, Trace f345, Trace b7dc

Protected Intrusions

Reports intrusions from objects of other nets into polygons or fills that have the Protected layout rule applied.

Manufacturing

Manufacturer Part Number • 28

	Designator	MPN
	Dynamic Teal Warp Drive	None
	3Pin Dupont-std	None
	Eachine TX805	None
	3Pin Dupont-std	None
	3Pin Dupont-std	None
	3Pin Dupont-std	None
	3Pin Dupont-std	None
	3Pin Dupont-std	None
	3Pin Dupont-std	None
	3Pin Dupont-std	None
	3Pin Dupont-std	None
	3Pin Dupont-std	None
	3Pin Dupont-std	None
	C2	None
	C4	None
	C6	None
	C7	None
	M1	None
	M2	None
	M3	None
	M4	None
	OLED1	None
	R1	None
	R2	None
	R3	None
	R4	None
	R5	None
	R6	None

Parts Available

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Passive Components

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Pull Up/Pull Down Presence

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Capacitor Voltage Rating

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Checks that capacitors have appropriate voltage ratings to prevent overheating and ensure reliable circuit operation.

Ground
A common return path for electric current. Commonly known as ground.
jharwinbarrozo
20.5M
Net Portal
Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
jharwinbarrozo
43.0M
Power Net Portal
Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
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11.4M
Generic Resistor
A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
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1.5M
Generic Capacitor
A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF 10pF 100pF 1000pF 0.01uF 0.1uF 1.0uF 10uF 100uF 1000uF 10,000uF 1.1pF 11pF 110pF 1100pF 1.2pF 12pF 120pF 1200pF 1.3pF 13pF 130pF 1300pF 1.5pF 15pF 150pF 1500pF 0.015uF 0.15uF 1.5uF 15uF 150uF 1500uF 1.6pF 16pF 160pF 1600pF 1.8pF 18pF 180pF 1800pF 2.0pF 20pF 200pF 2000pF 2.2pF 22pF 20pF 2200pF 0.022uF 0.22uF 2.2uF 22uF 220uF 2200uF 2.4pF 24pF 240pF 2400pF 2.7pF 27pF 270pF 2700pF 3.0pF 30pF 300pF 3000pF 3.3pF 33pF 330pF 3300pF 0.033uF 0.33uF 3.3uF 33uF 330uF 3300uF 3.6pF 36pF 360pF 3600pF 3.9pF 39pF 390pF 3900pF 4.3pF 43pF 430pF 4300pF 4.7pF 47pF 470pF 4700pF 0.047uF 0.47uF 4.7uF 47uF 470uF 4700uF 5.1pF 51pF 510pF 5100pF 5.6pF 56pF 560pF 5600pF 6.2pF 62pF 620pF 6200pF 6.8pF 68pF 680pF 6800pF 0.068uF 0.68uF 6.8uF 68uF 680uF 6800uF 7.5pF 75pF 750pF 7500pF 8.2pF 82pF 820pF 8200pF 9.1pF 91pF 910pF 9100pF #generics #CommonPartsLibrary
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1.5M
Generic Inductor
A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
jharwinbarrozo
15.1k
Terminal
An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
natarius
RMCF0805JT47K0
47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
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1.2M
875105359001
10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
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1.2M
CTL1206FYW1T
Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
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1.1M

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H-Bridge ESC + Radio

Controls

Properties

Availability & Pricing

Distributor		Qty 1
	Digi-Key	$12.99–$29.37
	LCSC	$16.17–$17.61
	Mouser	$19.77–$30.71

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