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RT9605AGQV PDF预览

RT9605AGQV

更新时间： 2024-09-23 03:29:15
品牌 Logo 应用领域
立锜 - RICHTEK 驱动器
页数 文件大小 规格书
12页 261K
描述
Triple-Channel Synchronous-Rectified Buck MOSFET Driver

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RT9605AGQV 数据手册

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Preliminary  
RT9605A  
Triple-Channel Synchronous-Rectified Buck MOSFET Driver  
General Description  
Features  
z Drive SixN-MOSFETs for 3-Phase Buck PWM Control  
z Adaptive Shoot-Through Protection  
z Support High Switching Frequency  
z Fast Output Rise/Fall Time  
The RT9605A is a high frequency, triple-channel  
synchronous-rectified buck MOSFET driver specifically  
designed to drive six power N-MOSFETs. The part is  
promoted to pair with RichTek's multiphase buck PWM  
controller family for high-density power supply  
implementation. The output drivers of RT9605A can  
efficiently switch power MOSFETs at frequency 300kHz  
typically. Operating in higher frequency should consider  
the thermal dissipation carefully. Each driver of RT9605A  
is capable to drive a 3nF load in 30/40ns rising/falling  
time with little propagation delay from input transition to  
the gate of the power MOSFET. The device implements  
bootstrapping on the upper gate with only an external  
capacitor and a diode required. This reduces circuit  
complexity and allows the use of higher performance, cost  
effective N-MOSFETs. All drivers incorporate adaptive  
shoot-through protection to prevent upper and lower  
MOSFETs from conducting simultaneously and shorting  
the input supply. The RT9605A also detects the fault  
condition during initial start-up prior to the multi-phase  
PWM controller takes control.As a result, the input supply  
will latch into the shutdown state. The RT9605A comes  
to a small footprint package with VQFN-24L 4x4 package.  
z Propagation Delay 40ns  
z Tri-State Input for Bridge Shutdown  
z Upper MOSFET Direct Short Protection  
z Small 24-Lead VQFN Package  
z RoHS Compliant and 100% Lead (Pb)-Free  
Applications  
z CPU Core Voltage Supplies on Motherboard  
z High Frequency Low ProfileDC-DC Converters  
z High Current Low VoltageDC-DC Converters  
Marking Information  
For marking information, contact our sales representative  
directly or through a Richtek distributor located in your  
area, otherwise visit our website for detail.  
Pin Configurations  
(TOP VIEW)  
Ordering Information  
RT9605A  
Package Type  
QV : VQFN-24L 4x4 (V-Type)  
24 23 22 21 20 19  
UGATE1  
BOOT1  
NC  
GND  
1
2
3
4
5
6
18  
Operating Temperature Range  
P : Pb Free with Commercial Standard  
G : Green (Halogen Free with Commer-  
cial Standard)  
17 UGATE2  
BOOT2  
16  
GND  
PWM1  
PWM2  
GND  
15 PVCC3  
14 LGATE3  
13 GND  
Note :  
25  
10 11 12  
Richtek Pb-free and Green products are :  
`RoHS compliant and compatible with the current require-  
ments of IPC/JEDEC J-STD-020.  
7
8
9
`Suitable for use in SnPb or Pb-free soldering processes.  
`100% matte tin (Sn) plating.  
VQFN-24L 4x4  
All brandname or trademark belong to their owner respectively  
DS9605A-05 August 2007  
www.richtek.com  
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