ISL89163

High Speed, Dual Channel, 6A, Power MOSFET Driver with Enable Inputs

Product Status: Mass Production

OVERVIEW

The ISL89163, ISL89164, and ISL89165 are high-speed, 6A, dual channel MOSFET drivers with enable inputs.

Precision thresholds on all logic inputs allow the use of external RC circuits to generate accurate and stable time delays on both the main channel inputs, INA and INB, and the enable inputs, ENA and ENB. The precision delays capable of these precise logic thresholds makes these parts very useful for dead-time control and synchronous rectifiers. Note that the enable and input logic inputs can be interchanged for alternate logic implementations.

Three input logic thresholds are available: 3.3V (CMOS), 5.0V (CMOS or TTL compatible), and CMOS thresholds that are proportional to VDD.

At high switching frequencies, these MOSFET drivers use very little internal bias currents. Separate, non-overlapping drive circuits are used to drive each CMOS output FET to prevent shoot-through currents in the output stage.

The start-up sequence is designed to prevent unexpected glitches when VDD is being turned on or turned off. When VDD < ~1V, an internal 10kΩ resistor between the output and ground helps to keep the output voltage low. When ~1V < VDD < UV, both outputs are driven low with very low resistance and the logic inputs are ignored. This insures that the driven FETs are off. When VDD > UVLO, and after a short delay, the outputs now respond to the logic inputs.

KEY FEATURES

  • Dual output, 6A peak currents, can be paralleled
  • Dual AND-ed input logic, (input and enable)
  • Typical ON-resistance <1Ω
  • Specified Miller plateau drive currents
  • Very low thermal impedance (θJC = 3°C/W)
  • Hysteretic Input logic levels for 3.3V CMOS, 5V CMOS, TTL, and Logic levels proportional to VDD
  • Precision threshold inputs for time delays with external RC components
  • 20ns rise and fall time driving a 10nF load.

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL89163
Basic Information
Production Status
Mass Production
# of Drivers
2
Input Voltage Max (V)
16
Max Operating Frequency
10 MHz
Peak Output Current IPK
6 A
Rise Time
20 ns
Fall Time
20 ns
Turn On Delay (ns)
25
Turn Off Delay (ns)
25
IS
5 mA
VBIAS (min)
4.5 V
RDS (ON)
2 Ω
Input Signal Range (V)
0 to VP
Input Supply Range (V)
+4.5 to +16
Output Signal Range (V)
0 to +16
Qualification Level
Standard
Input Signal Max (V)
16
Input Supply VP (max)
16 V
Input Supply VP (min)
4.5 V
Output Signal (max) (V)
16
Output Signal (min) (V)
0
Can Sample
YES
Temperature Range
-40 to +125

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