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ISL78434AVEZ-T7A PDF预览

ISL78434AVEZ-T7A

更新时间： 2024-11-30 02:48:35
品牌 Logo 应用领域
瑞萨 - RENESAS 驱动接口集成电路
页数 文件大小 规格书
34页 1684K
描述
100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive Dead Time Control

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ISL78434AVEZ-T7A 技术参数

生命周期：Active零件包装代码：TSSOP-EP
包装说明：,针数：14
Reach Compliance Code：compliant风险等级：2.13
接口集成电路类型：HALF BRIDGE BASED MOSFET DRIVERBase Number Matches：1

ISL78434AVEZ-T7A 数据手册

 浏览型号ISL78434AVEZ-T7A的Datasheet PDF文件第2页浏览型号ISL78434AVEZ-T7A的Datasheet PDF文件第3页浏览型号ISL78434AVEZ-T7A的Datasheet PDF文件第4页浏览型号ISL78434AVEZ-T7A的Datasheet PDF文件第5页浏览型号ISL78434AVEZ-T7A的Datasheet PDF文件第6页浏览型号ISL78434AVEZ-T7A的Datasheet PDF文件第7页 
DATASHEET  
ISL78424, ISL78434, ISL78444  
100V Boot, 4A Peak, Half-Bridge Driver with Single PWM Input and Adaptive  
Dead Time Control  
FN9357  
Rev.0.00  
Sep 10, 2018  
The ISL78424, ISL78434, and ISL78444 are Automotive  
Grade (AEC-Q100 Grade 1) high voltage, high  
frequency, half-bridge NMOS FET drivers for driving  
the gates of up to 70V half-bridge topologies.  
Features  
• Patented gate-sensed adaptive dead time control  
provides shoot-through protection and mimized dead  
time  
The family of half-bridge drivers feature 3A sourcing,  
4A sinking peak gate drive current. The ISL78424 and  
ISL78444 feature a single tri-level PWM input for  
controlling both gate drivers. The ISL78434 has dual  
independent inputs for controlling the high-side and  
low-side driver separately. The ISL78424 and ISL78434  
have independent sourcing and sinking pins for each gate  
driver while ISL78444 has a single combined  
• Unique tri-level PWM input for integration with  
Renesas multiphase controllers (for example,  
ISL78225 and ISL78226)  
• 3A sourcing and 4A sinking output current  
• On-chip 3Ω bootsrap FET switch  
• Programmable dead time delay with single resistor  
• Tri-level PWM input (ISL78424, ISL78444)  
• Independent HI/LI inputs (ISL78434)  
sourcing/sinking output for each gate driver.  
Strong gate drive strength and the Adaptive Dead Time  
(ADT) feature allow this family of drivers to switch high  
• Separate source/sink pins at driver outputs  
(ISL78424, ISL78434)  
voltage, low r  
power FETs in half-bridge  
DS(ON)  
topologies at high operating frequencies while providing  
shoot-through protection and minimizing dead time  
switching losses.  
• Bootstrap and VDD Undervoltage Lockout (UVLO)  
• Wide supply range: 8V to 18V  
• Bootstrap supply maximum voltage: 100V  
• Maximum phase voltage: 86V  
The ISL78424, ISL78434, and ISL78444 are offered in a 14  
Ld HTSSOP package that complies with 100V conductor  
spacing per IPC-2221B. The ISL78444 is pin compatible  
with the ISL78420. All devices are specified across a  
wide ambient temperature range of -40°C to +140°C.  
• Minimum phase voltage: -10V  
Applications  
• Automotive half-bridge and 3-phase motor driver  
Related Literature  
For a full list of related documents, visit our website:  
• 12V to 24V and 12V to 48V bidirectional DC/DC  
(with ISL78226, ISL78224 controllers)  
• ISL78424, ISL78434, ISL78444 product pages  
• Multi-phase boost (with ISL78220 and ISL78225  
controllers)  
V_BUS  
RSINK  
12V  
48V  
PWM  
VDD  
EN  
LO  
RSOURCE  
CBOOT  
VOUT  
HB  
14 VDD  
1
2
3
4
5
6
HB  
HO  
HS  
ISL78444  
EPAD  
RSOURCE  
HO_H  
LO_H  
13  
RDT  
VSS  
PWM1  
PWM2  
PWM3  
PWM4  
LO_L  
12  
HO_L  
HS  
ISL78226  
6-Phase  
DC/DC  
RSINK  
VSS  
11  
ISL78424  
Phase #1  
Phase #2  
Phase #3  
Phase #4  
Phase #5  
Phase #6  
PWM  
10  
NC  
Controller  
PWM5  
PWM6  
From  
Controller  
EN  
9
NC  
AGND  
RDT  
8
7
Figure 1. Independent Source and Sink Outputs for  
Optimizing Gate Drive Current and Adaptive Dead Time  
Sensing  
Figure 2. NMOS Half-Bridge Driver for 12V-48V Bi-Directional  
DC/DC Controller  
FN9357 Rev.0.00  
Sep 10, 2018  
Page 1 of 34  
1234567...34

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