LM5106SDX

Part: LM5106 — Texas Instruments

Type: Half-Bridge Gate Driver

Description: 100-V half-bridge gate driver with programmable dead-time, designed to drive both high-side and low-side N-channel MOSFETs with 1.8-A peak sink and 1.2-A peak source current.

Operating Conditions:

• Supply voltage (VDD): 8–14 V
• Operating temperature (Junction): -40 to 125 °C
• HS voltage: -1 to 100 V
• HB voltage: HS + 8 to HS + 14 V

Absolute Maximum Ratings:

• Max supply voltage (VDD to VSS): 18 V
• Max HB to VSS: 118 V
• Max junction temperature: 150 °C
• Max storage temperature: -55 to 150 °C

Key Specs:

• V DD Quiescent Current: 0.34 mA (Typ, IN = EN = 0 V)
• V DD Operating Current: 2.1 mA (Typ, f = 500 kHz)
• Low Level Input Voltage Threshold (VIL): 0.8 V (Min)
• High Level Input Voltage Threshold (VIH): 2.2 V (Max)
• Peak Pullup Current (IOHL/IOHH): 1.2 A (Typ)
• Peak Pulldown Current (IOLL/IOLH): 1.8 A (Typ)
• Lower/Upper Turn-Off Propagation Delay (tLPHL/tHPHL): 32 ns (Typ)
• Lower/Upper Turn-On Propagation Delay (tLPLH): 520 ns (Typ, RDT = 100k)
• Dead-time (DT1, DT2): 510 ns (Typ, RDT = 100k)
• Output Rise Time (tR): 15 ns (Typ, CL = 1000pF)
• Output Fall Time (tF): 10 ns (Typ, CL = 1000pF)

Features:

• Drives Both a High-Side and Low-Side N-Channel MOSFET
• 1.8-A Peak Output Sink Current
• 1.2-A Peak Output Source Current
• Bootstrap Supply Voltage Range up to 118-V DC
• Single TTL Compatible Input
• Programmable Turnon Delays (Dead-Time)
• Enable Input Pin
• Fast Turnoff Propagation Delays (32 ns Typical)
• Drives 1000 pF With 15-ns Rise and 10-ns Fall Time
• Supply Rail Undervoltage Lockout
• Low Power Consumption

Applications:

• Solid-State Motor Drives
• Half-Bridge and Full-Bridge Power Converters
• Two Switch Forward Power Converters

Package:

• VSSOP (10)
• WSON (10)

• 1 · Drives Both a High-Side and Low-Side N-Channel MOSFET
• 1.8-A Peak Output Sink Current
• 1.2-A Peak Output Source Current
• Bootstrap Supply Voltage Range up to 118-V DC
• Single TTL Compatible Input
• Programmable Turnon Delays (Dead-Time)
• Enable Input Pin
• Fast Turnoff Propagation Delays (32 ns Typical)
• Drives 1000 pF With 15-ns Rise and 10-ns Fall Time
• Supply Rail Undervoltage Lockout
• Low Power Consumption
• 10-Pin WSON Package (4 mm × 4 mm) and 10Pin VSSOP Package

• Solid-State Motor Drives
• Half-Bridge and Full-Bridge Power Converters

Pin Functions

Pin Functions

MIN and MAX limits apply over the full operating junction temperature range. Unless otherwise specified, TJ = +25°C, VDD = HB = 12 V, VSS = HS = 0 V, EN = 5 V. No load on LO or HO. RDT= 100k Ω (1) .

The LM5106 is one of the latest generation of high-voltage gate drivers which are designed to drive both the high-side and low-side N-channel MOSFETs in a half-bridge/full bridge configuration or in a synchronous buck circuit. The floating high-side driver can operate with supply voltages up to 110 V. This allows for N-channel MOSFET control in half-bridge, full-bridge, push-pull, two switch forward and active clamp topologies.

The outputs of the LM5106 are controlled from a single input. The rising edge of each output can be delayed with a programming resistor.

Table 1. Highlights