Document
High Speed, Dual Channel, 6A, 4.5 to 16VOUT, Power MOSFET Drivers
ISL89160, ISL89161, ISL89162
The ISL89160, ISL89161, and ISL89162 are high-speed, 6A, dual channel MOSFET drivers. These parts are identical to the ISL89163, ISL89164, ISL89165 drivers but without the enable inputs for each channel.
Two input logic thresholds are available: 3.3V (CMOS and TTL compatible) and 5.0V (CMOS).
Precision thresholds on all logic inputs allow the use of external RC circuits to generate accurate and stable time delays on both inputs, INA and INB. This capability is very useful for dead time control.
At high switching frequencies, these MOSFET drivers use very little bias current. Separate, non-overlapping drive circuits are used to drive each CMOS output FET to prevent shoot-thru currents in the output stage.
The start-up sequence is design 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.
Features
• Dual output, 6A peak currents, can be paralleled • 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, and TTL • Precision threshold inputs for time delays with external RC
components • 20ns rise and fall time driving a 10nF load. • NC pins may be connected to ground or VDD to ease PCB
layout difficulties.
Applications
• Synchronous Rectifier (SR) driver • Switch mode power supplies • Motor drives, class D amplifiers, UPS, inverters • Pulse transformer driver • Clock/line driver
Related Literature
• AN1603 “ISL6752/54EVAL1Z ZVS DC/DC Power Supply with Synchronous Rectifiers User Guide”
NC INA GND
INB
1 2 3 4
EPAD
VDD
8 NC 7 OUTA 6 5 OUTB
4.7µF
FIGURE 1. TYPICAL APPLICATION
OPTION B THRESHOLDS (5V)
3.5
3.0 POSITIVE THRESHOLD 2.5
2.0
1.5 NEGATIVE THRESHOLD 1.0
0.5
0.0 -40 -25 10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C)
FIGURE 2. TEMPERATURE STABLE LOGIC THRESHOLDS
February 20, 2013 FN7719.3
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas LLC 2010-2013. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners.
Block Diagram
ISL89160, ISL89161, ISL89162
For clarity, only one channel is shown
For options A and B, the UV comparator holds off the outputs until VDD ~> 3.3VDC.
Separate FET drives, with non-overlapping outputs,
prevent shoot-thru currents in the output CMOS FETs resulting with very low high frequency
operating currents.
VDD
ISL89160
INx
OUTx
EPAD
For proper thermal and electrical performance, the EPAD must be connected to the PCB ground plane.
ISL89161, ISL89162
10k GND
Pin Configurations
ISL89160FR, ISL89160FB (8 LD TDFN, EPSOIC) TOP VIEW
ISL89161FR, ISL89161FB (8 LD TDFN, EPSOIC) TOP VIEW
NC 1 INA 2 GND 3 INB 4
8 NC 7 OUTA 6 VDD 5 OUTB
NC 1 /INA 2 GND 3 /INB 4
8 NC 7 OUTA 6 VDD 5 OUTB
ISL89162FR, ISL89162FB (8 LD TDFN, EPSOIC) TOP VIEW
NC 1 /INA 2 GND 3 INB 4
8 NC 7 OUTA 6 VDD 5 OUTB
Pin Descriptions
PIN NUMBER
SYMBOL
DESCRIPTION
1, 8 NC No Connect. This pin may be left open or connected to 0V or VDD
2 INA or /INA Channel A input, 0V to VDD
3 GND Power Ground, 0V
4 INB or /INB Channel B enable, 0V to VDD
5 OUTB Channel B output
6 VDD Power input, 4.5V to 16V
7 OUTA Channel A output, 0V to VDD
EPAD Power Ground, 0V
2 FN7719.3
February 20, 2013
ISL89160, ISL89161, ISL89162
Ordering Information
PART NUMBER (Notes 1, 2, 3)
PART MARKING
TEMP RANGE (°C)
INPUT CONFIGURATION
INPUT LOGIC
PACKAGE (Pb-Free)
PKG. DWG. #
ISL89160FRTAZ
160A
-40 to +125
non-inverting
3.3VDC
8 Ld 3x3 TDFN L8.3x3I
ISL89161FRTAZ
161A
-40 to +125
inverting
8 Ld 3x3 TDFN L8.3x3I
ISL89162FRTAZ
162A
-40 to +125
inverting + non-inverting
8 Ld 3x3 TDFN L8.3x3I
ISL89160FBEAZ
89160 FBEAZ
-40 to +125
non-inverting
8 Ld EPSOIC
M8.15D
ISL89161FBEAZ
89161 FBEAZ
-40 to +125
inverting
8 Ld EPSOIC
M8.15D
ISL89162FBEAZ
89162 FBEAZ
-40 to +125
inverting + non-inverting
8 Ld EPSOIC
M8.15D
ISL89160FRTBZ
160B
-40 to +125
non-inverting
5.0VDC
8 Ld 3x3 TDFN L8.3x3I
ISL89161FRTBZ
161B
-40 to +125
inverting
8 Ld 3x3 TDFN L8.3x3I
ISL89162FRTBZ
162B
-40 to +125
inverting + non-inverting
8 Ld 3x3 TDFN L8.3x3I
ISL89160FBEBZ
89160 FBEBZ
-40 to +125
non-inverting
8 Ld EPSOIC
M8.15D
ISL89161FBEBZ
89161 FBEBZ
-40 to +125
inverting
8 Ld EPSOIC
M8.15D
ISL89162FBEBZ
89162 FBEBZ
-40 to +125
inverting + non-inverting
8 Ld EPSOIC
M8.15D.