L6743Q STMicroelectronics, L6743Q Datasheet - Page 2

• Manufacturer Part Number: L6743Q
• Description: IC MOSFET DRIVER HI CURR 10-DFN
• Manufacturer: STMicroelectronics
• Type: High Side/Low Sider

Specifications of L6743Q

• Configuration: High and Low Side, Synchronous
• Input Type: Non-Inverting
• Current - Peak: 2A
• Number Of Configurations: 1
• Number Of Outputs: 2
• Voltage - Supply: 5 V ~ 12 V
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 10-DFN
• Supply Voltage (min): 5 V
• Supply Current: 5 mA
• Maximum Power Dissipation: 2250 mW
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Number Of Drivers: 2
• Flexible Gate-drive: 5V to 12V compatible
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Delay Time: -
• High Side Voltage - Max (bootstrap): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Contents
Contents
1
2
3
4
5
6
7
2/17
Typical application circuit and block diagram . . . . . . . . . . . . . . . . . . . . 3
1.1
1.2
Pins description and connection diagrams . . . . . . . . . . . . . . . . . . . . . . 4
2.1
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.1
4.2
Device description and operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5.1
5.2
5.3
5.4
5.5
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
High-impedance (HiZ) management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Preliminary OV protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Internal BOOT diode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Layout guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
L6743, L6743Q