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參數(shù)資料
| 型號： | ISL6209 |
| 廠商： | Intersil Corporation |
| 英文描述： | Octal D-Type Edge-Triggered Flip-Flops With 3-State Outputs 20-PDIP -40 to 85 |
| 中文描述： | 高電壓同步整流降壓MOSFET驅動器 |
| 文件頁數(shù)： | 8/10頁 |
| 文件大?。?/td> | 347K |
| 代理商： | ISL6209 |
8
Power Dissipation
Package power dissipation is mainly a function of the
switching frequency and total gate charge of the selected
MOSFETs. Calculating the power dissipation in the driver for
a desired application is critical to ensuring safe operation.
Exceeding the maximum allowable power dissipation level
will push the IC beyond the maximum recommended
operating junction temperature of 125°C. The maximum
allowable IC power dissipation for the SO-8 package is
approximately 800mW. When designing the driver into an
application, it is recommended that the following calculation
be performed to ensure safe operation at the desired
frequency for the selected MOSFETs. The power dissipated
by the driver is approximated as:
where f
sw
is the switching frequency of the PWM signal. V
U
and V
L
represent the upper and lower gate rail voltage. Q
U
and Q
L
is the upper and lower gate charge determined by
MOSFET selection and any external capacitance added to
the gate pins. The I
VCC
V
CC
product is the quiescent power
of the driver and is typically negligible.
P
f
sw
1.5V
U
Q
U
V
L
Q
L
+
(
)
I
VCC
V
CC
+
=
FIGURE 7. POWER DISSIPATION vs FREQUENCY
FREQUENCY (kHz)
P
1000
900
800
700
600
500
400
300
200
100
0
0
200
400
600
800
1000 1200
1600
1400
1800 2000
Q
U
=100nC
Q
L
=200nC
Q
U
=50nC
Q
L
=100nC
Q
U
=20nC
Q
L
=50nC
Q
U
=50nC
Q
L
=50nC
ISL6209
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ISL6209 WAF | 制造商:Intersil Corporation 功能描述: |
| ISL6209_07 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:High Voltage Synchronous Rectified Buck MOSFET Driver |
| ISL6209CB | 功能描述:IC MOSFET DRVR SYNC BUCK 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅動器 - 外部開關 系列:- 標準包裝:50 系列:- 配置:低端 輸入類型:非反相 延遲時間:40ns 電流 - 峰:9A 配置數(shù):1 輸出數(shù):1 高端電壓 - 最大（自引導啟動）:- 電源電壓:4.5 V ~ 35 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:TO-263-6，D²Pak（5 引線+接片），TO-263BA 供應商設備封裝:TO-263 包裝:管件 |
| ISL6209CB-T | 功能描述:IC MOSFET DRVR SYNC BUCK 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅動器 - 外部開關 系列:- 標準包裝:50 系列:- 配置:低端 輸入類型:非反相 延遲時間:40ns 電流 - 峰:9A 配置數(shù):1 輸出數(shù):1 高端電壓 - 最大（自引導啟動）:- 電源電壓:4.5 V ~ 35 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:TO-263-6，D²Pak（5 引線+接片），TO-263BA 供應商設備封裝:TO-263 包裝:管件 |
| ISL6209CBZ | 功能描述:功率驅動器IC P6 HV SYNCHCT BUCK MSFT W/POR & DELAY RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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