ISL89411 INTERSIL [Intersil Corporation], ISL89411 Datasheet - Page 12

• Manufacturer Part Number: ISL89411
• Description: Intersil Power Management Solutions
• Manufacturer: INTERSIL [Intersil Corporation]

12
Intersil Power Management Solutions  2012  www.intersil.com
World’s Fastest Dual
6A MOSFET Driver
• 25ns Propagation Delay
• 20ns Rise and Fall Times
Key Features
• The Only Dual 6A MOSFET Driver on
• The World’s Fastest 6A Driver
• Unique Precision Logic Thresholds
• Unique Programmable Rising and
• The Precision Logic Thresholds
• The Internal Timers can be
• Precision Thresholds Allow for Use of
Applications
• Synchronous Rectifier (SR) Driver
• Switch Mode Power Supplies
• Motor Drives, Class D amplifiers, UPS,
• Pulse Transformer Driver
the Market Today
○ Simplifies design
Falling Edge Delay Times
○ Improved reliability
Simplify Design of Synchronous
Rectification on the Secondary Side
Programmed to Provide Up to 270ns
of Drive Delay
Simple External RC Circuits
Inverters
VREF+
VREF-
IN1x
IN2x
Typical Application
Improved Reliability
Simplifies Design
Unique programmable rising and falling edge delay times
Unique precision logic thresholds
The positive threshold is
63% of ((VREF+)-(VREF-)).
The negative threshold is
37% of ((VREF+)-(VREF-)).
PWM
ENABLE
3.3V
350
300
250
200
150
100
50
VREF+
VREF-
INVA
INVB
0
0
EPAD
Programmable Time Delay
For proper thermal and
electrical performance, the
EPAD must be connected to
the PCB signal ground plane.
5
-40°C (WORST CASE)
For clarity, only one
channel is shown
+125°C (WORST CASE)
RDT (2k to 20k)
10
Rising edge
is delayed
Falling edge
is delayed
RDELA
RDELB
FDELA
FDELB
/OUTA
GND
OUTB
+25°C (TYPICAL)
15
prevent shoot-thru currents
in the output CMOS FETs.
Low Side, Dual: ISL89367
Separated gate drives
Delay
Timer
Delay
Timer
20
12V
10K
VDD
RDELx
OUTx
INVx
FDELx
VSS