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参数资料
| 型号： | ISL89168FRTAZ-T |
| 厂商： | Intersil |
| 文件页数： | 1/14页 |
| 文件大小： | 0K |
| 描述： | IC MOSFET DRIVER 2CH 6A 8TDFN |
| 标准包装： | 6,000 |
| 配置： | 低端 |
| 输入类型： | 反相和非反相 |
| 延迟时间： | 25ns |
| 电流 - 峰： | 6A |
| 配置数： | 2 |
| 输出数： | 2 |
| 电源电压： | 4.5 V ~ 16 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WDFN 裸露焊盘 |
| 供应商设备封装： | 8-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
High Speed, Dual Channel, 6A, Power MOSFET Driver
With Programmable Delays
ISL89166, ISL89167, ISL89168
The ISL89166, ISL89167, and ISL89168 are high-speed, 6A,
dual channel MOSFET drivers. These parts are similar to the
ISL89160, ISL89161, ISL89162 drivers but use the NC pins for
programming the rising edge time delays of the outputs used for
dead time control.
As an alternative to using external RC circuits for time delays, the
programmable delays on the RDTA and RDTB pins allows the
user to delay the rising edge of the respective outputs just by
connecting an appropriate resistor value between these pins and
ground. The accuracy and temperature characteristics of the
time delays are specified freeing the user of the need to select
appropriate external resistors and capacitors that traditionally
are applied to the logic inputs to delay the output edges.
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-thru currents in the output stage.
The start-up sequence is design to prevent unexpected glitches
when V DD is being turned on or turned off. When V DD < ~1V, an
internal 10k Ω resistor between the output and ground helps to
keep the output voltage low. When ~1V <V DD < UV, both outputs
are driven low with very low resistance and the logic inputs are
Features
? Typical ON-resistance <1 Ω
? Specified Miller plateau drive currents
? Very low thermal impedance ( θ JC = 3°C/W)
? Hysteretic Input logic levels for 3.3V CMOS, 5V CMOS, and TTL
? Precision threshold inputs for optional time delays with
external RC components
? Instead of RC components for time delays, a resistor can be
used to program delays
? 20ns rise and fall time driving a 10nF load.
? NC pins may be connected to ground or VDD for flexible PCB
layout options
Applications
? Synchronous Rectifier (SR) Driver
? Switch mode power supplies
? Motor Drives, Class D amplifiers, UPS, Inverters
? Pulse Transformer Driver
? Clock/Line Driver
ignored. This insures that the driven FETs are off. When
V DD > UVLO, and after a short delay, the outputs now respond to
the logic inputs.
350
V DD
300
RDTA
1
8
RDTB
250
+125°C (WORST CASE)
INA
2
7
OUTA
200
GND
3
EPAD
6
150
INB
4
5
OUTB
100
+25°C (TYPICAL)
4.7μF
50
0
-40°C (WORST CASE)
0
5
10
15
20
RDT (2k to 20k)
FIGURE 1. TYPICAL APPLICATION
FIGURE 2. PROGRAMMABLE TIME DELAYS
February 26, 2013
FN7720.2
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 2011-2013. 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.
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