LM5101A 3A High Voltage High-Side and Low-Side Gate Driver | TI.com

LM5101A (ACTIVE)

3A High Voltage High-Side and Low-Side Gate Driver

 

Description

The LM5100A/B/C and LM5101A/B/C high-voltage gate drivers are designed to drive both the high-side and the low-side N-Channel MOSFETs in a synchronous buck or a half-bridge configuration. The floating high-side driver is capable of operating with supply voltages up to 100 V. The A versions provide a full 3-A of gate drive, while the B and C versions provide 2 A and 1 A, respectively. The outputs are independently controlled with CMOS input thresholds (LM5100A/B/C) or TTL input thresholds (LM5101A/B/C).

An integrated high-voltage diode is provided to charge the high-side gate drive bootstrap capacitor. A robust level shifter operates at high speed while consuming low power and providing clean level transitions from the control logic to the high-side gate driver. Undervoltage lockout is provided on both the low-side and the high-side power rails. These devices are available in the standard SOIC-8 pin, SO PowerPAD-8 pin, and the WSON-10 pin packages. The LM5100C and LM5101C are also available in MSOP-PowerPAD-8 package. The LM5101A is also available in WSON-8 pin package.

Features

  • Drives Both a High-Side and Low-Side N-Channel
    MOSFETs
  • Independent High- and Low-Driver Logic Inputs
  • Bootstrap Supply Voltage up to 118 V DC
  • Fast Propagation Times (25-ns Typical)
  • Drives 1000-pF Load With 8-ns Rise and Fall
    Times
  • Excellent Propagation Delay Matching (3-ns
    Typical)
  • Supply Rail Undervoltage Lockout
  • Low Power Consumption
  • Pin Compatible With HIP2100/HIP2101

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Parametrics Compare all products in Half-bridge drivers

 
Number of channels (#)
Power switch
Bus voltage (Max) (V)
Peak output current (A)
Input VCC (Min) (V)
Input VCC (Max) (V)
Rise time (ns)
Fall time (ns)
Prop delay (ns)
Iq (uA)
Input threshold
Channel input logic
Negative voltage handling at HS pin (V)
Features
Rating
Operating temperature range (C)
Package Group
LM5101A LM5100A LM5101B LM5101C LM5102 LM5104 UCC27200A UCC27201A UCC27282
2     2     2     2     2     2     2     2     2    
MOSFET     MOSFET     MOSFET     MOSFET     MOSFET     MOSFET     MOSFET     MOSFET     MOSFET    
100     100     100     100     100     100     110     110     120    
3     3     2     1     2     2     3     3     3    
9     9     9     9     9     9     8     8     5.5    
14     14     14     14     14     14     17     17     16    
10     10     10     10     10     10     8     8     12    
10     10     10     10     10     10     7     7     10    
25     25     25     25     35     35     20     20     13    
10     10     10     10     10     10     1     1     2    
TTL     CMOS     TTL     TTL     TTL     TTL     CMOS     TTL     TTL    
TTL     CMOS     TTL     TTL     TTL     TTL     CMOS     TTL     TTL    
-1     -1     -1     -1     -1     -1     -15     -15     -10