ISL6610A

The ISL6610, ISL6610A integrates two ISL6609, ISL6609A drivers with enable function removed and is optimized to drive two independent power channels in a synchronousrectified buck converter topology. These drivers, combined with an Intersil ISL63xx or ISL65xx multiphase PWM controller, form a complete high efficiency voltage regulator at high switching frequency.

The IC is biased by a single low voltage supply (5V), minimizing driver switching losses in high MOSFET gate capacitance and high switching frequency applications. Each driver is capable of driving a 3nF load with less than 10ns rise/fall time. Bootstrapping of the upper gate driver is implemented via an internal low forward drop diode, reducing implementation cost, complexity, and allowing the use of higher performance, cost effective N-Channel MOSFETs. Adaptive shoot-through protection is integrated to prevent both MOSFETs from conducting simultaneously.

The ISL6610, ISL6610A features 4A typical sink current for the lower gate driver, enhancing the lower MOSFET gate hold-down capability during PHASE node rising edge, preventing power loss caused by the self turn-on of the lower MOSFET due to the high dV/dt of the switching node.

The ISL6610, ISL6610A also features an input that recognizes a high-impedance state, working together with Intersil multiphase PWM controllers to prevent negative transients on the controlled output voltage when operation is suspended. This feature eliminates the need for the schottky diode that may be utilized in a power system to protect the load from negative output voltage damage.

In addition, the ISL6610As bootstrap function is designed to prevent the BOOT capacitor from overcharging, should excessively large negative swings occur at the transitions of the PHASE node

ISL6610A 特点

• 5V Quad N-Channel MOSFET Drives for Two Synchronous Rectified Bridges
• Pin-to-pin Compatible with ISL6614 (12V Drive)
• Adaptive Shoot-Through Protection
• 0.4Ω On-Resistance and 4A Sink Current Capability
• Supports High Switching Frequency
  • Fast Output Rise and Fall
  • Low Tri-State Hold-Off Time
• BOOT Capacitor Overcharge Prevention (ISL6610A)
• Low VF Internal Bootstrap Diode
• Power-On Reset
• QFN Package
  • Compliant to JEDEC PUB95 MO-220 QFN-Quad Flat No Leads-Product Outline
  • Near Chip-Scale Package Footprint; Improves PCB Utilization, Thinner Profile
• Pb-Free Plus Anneal Available (RoHS Compliant)

ISL6610A 应用

• Core Voltage Supplies for Intel(R) and AMD(R) Microprocessors
• High Frequency Low Profile High Efficiency DC/DC Converters
• High Current Low Voltage DC/DC Converters
• Synchronous Rectification for Isolated Power Supplies

ISL6610A 芯片订购指南

芯片型号	产品状态	温度范围	封装尺寸图	潮湿敏感度等级MSL	美元价格US $
ISL6610ACBZ	量产	民用级	14 Ld SOIC	2	1.27
ISL6610ACBZ-T	量产	民用级	14 Ld SOIC T+R	2	1.27
ISL6610ACRZ	量产	民用级	16 Ld QFN	1	1.47
ISL6610ACRZ-T	量产	民用级	16 Ld QFN T+R	1	1.47
ISL6610AIBZ	量产	工业级	14 Ld SOIC	2	1.4
ISL6610AIBZ-T	量产	工业级	14 Ld SOIC T+R	2	1.4
ISL6610AIRZ	量产	工业级	16 Ld QFN	1	1.6
ISL6610AIRZ-T	量产	工业级	16 Ld QFN T+R	1	1.6

ISL6610A 应用技术支持与电子电路设计开发资源下载

1. ISL6610A 数据资料 datatSheet 下载.PDF
2. Power 电源管理器件产品选型指南 . pdf