參數(shù)資料
型號: ISL6209CRZ-T
廠商: INTERSIL CORP
元件分類: MOSFETs
英文描述: High Voltage Synchronous Rectified Buck MOSFET Driver
中文描述: 4 A HALF BRDG BASED MOSFET DRIVER, PQCC8
封裝: LEAD FREE, 3 X 3 MM, PLASTIC, MO-220VEEC, QFN-8
文件頁數(shù): 8/10頁
文件大?。?/td> 347K
代理商: ISL6209CRZ-T
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
相關(guān)PDF資料
PDF描述
ISL6209 Octal D-Type Edge-Triggered Flip-Flops With 3-State Outputs 20-PDIP -40 to 85
ISL6211 Crusoe⑩ Processor Core-Voltage Regulator
ISL6211CA Octal D-Type Edge-Triggered Flip-Flops With 3-State Outputs 20-TSSOP -40 to 85
ISL6211CA-T Crusoe⑩ Processor Core-Voltage Regulator
ISL6219A Microprocessor CORE Voltage Regulator Precision Multi-Phase BUCK PWM Controller for Mobile Applications
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISL6210 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual Synchronous Rectified MOSFET Drivers
ISL6210CRZ 功能描述:IC MOSFET DRIVER DUAL SYNC 16QFN RoHS:是 類別:集成電路 (IC) >> PMIC - MOSFET,電橋驅(qū)動器 - 外部開關(guān) 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 配置:高端 輸入類型:非反相 延遲時間:200ns 電流 - 峰:250mA 配置數(shù):1 輸出數(shù):1 高端電壓 - 最大(自引導(dǎo)啟動):600V 電源電壓:12 V ~ 20 V 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:8-DIP(0.300",7.62mm) 供應(yīng)商設(shè)備封裝:8-DIP 包裝:管件 其它名稱:*IR2127
ISL6210CRZ-T 功能描述:IC MOSFET DRIVER DUAL SYNC 16QFN RoHS:是 類別:集成電路 (IC) >> PMIC - MOSFET,電橋驅(qū)動器 - 外部開關(guān) 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 配置:高端 輸入類型:非反相 延遲時間:200ns 電流 - 峰:250mA 配置數(shù):1 輸出數(shù):1 高端電壓 - 最大(自引導(dǎo)啟動):600V 電源電壓:12 V ~ 20 V 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:8-DIP(0.300",7.62mm) 供應(yīng)商設(shè)備封裝:8-DIP 包裝:管件 其它名稱:*IR2127
ISL6211 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Crusoe⑩ Processor Core-Voltage Regulator
ISL6211CA 制造商:Rochester Electronics LLC 功能描述:CPU REGULATOR FOR TRANSMETA,SINGLE CORE - Bulk 制造商:Intersil Corporation 功能描述: