Datasheet > ISL81601

ISL81601

更新时间： 2024-11-05 14:58:15

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
54页	2361K
描述
60V Bidirectional 4-Switch Synchronous Buck-Boost Controller

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ISL81601 数据手册

DATASHEET

ISL81601

FN9299

Rev.3.1

May 27, 2021

60V Bidirectional 4-Switch Synchronous Buck-Boost Controller

The ISL81601 is a true bidirectional 4-switch

synchronous buck-boost controller with peak and

average current sensing and monitoring at both ends. Its

wide input and output voltage ranges make it suitable for

industrial, telecommunication, and after-market

automotive applications.

Features

• Single inductor 4-switch buck-boost controller

• On-the-fly bidirectional operation with independent

control of voltage and current on both ends

• Proprietary algorithm for smoothest mode transition

The ISL81601 uses the proprietary buck-boost control

algorithm with valley current modulation for Boost mode

and peak current modulation for Buck mode control.

• MOSFET drivers with adaptive shoot-through

protection

• Wide input voltage range: 4.5V to 60V

• Wide output voltage range: 0.8V to 60V

• Supports pre-biased output with SR soft-start

• Programmable frequency: 100kHz to 600kHz

The ISL81601 has four independent control loops for input

and output voltages and currents. Inherent peak current

sensing at both ends and cycle-by-cycle current limit of

this family of products ensures high operational reliability

by providing instant current limit in fast transient

conditions at either ends and in both directions. It also has

two current monitoring pins at both input and output to

facilitate Constant Current (CC) limit and other system

management functions. CC operation down to low

voltages avoids any runaway condition at over load or

short-circuit conditions. In addition to multilayer

overcurrent protection, it also provides full protection

features such as OVP, UVP, OTP, and average and peak

current limit on both input and output to ensure high

reliability in both unidirectional and bidirectional

operation. The IC is packaged in a space conscious 32 Ld

5mm x5mm QFN package or easy to assemble

• Supports parallel operation current sharing with

cascade phase interleaving

• External sync with clock out or frequency dithering

• External bias for higher efficiency supports 8V - 36V

input

• Output and input current monitor

• Selectable PWM mode operation between

PWM/DE/Burst modes

• Accurate EN/UVLO and PGOOD indicator

• Low shutdown current: 2.7µA

4.4mmx9.7mm 38 Ld HTSSOP package. Both packages

use an EPAD to improve thermal dissipation and noise

immunity. Low pin count, fewer external components, and

default internal values make the ISL81601 an ideal

solution for quick to market simple power supply designs.

The unique DE/Burst mode at light-load dramatically

lowers standby power consumption with consistent output

ripple over different load levels.

• Complete protection: OCP, SCP, OVP, OTP, and UVP

• Dual-level OCP protection with average current

and pulse-by-pulse peak current limit

• Selectable OCP response with either hiccup or

constant current mode

• Negative pulse-by-pulse peak current limit

Applications

• Battery backup

R_{s_out}

UG2

R_{s_in}

UG1

VIN

VOUT

• UPS/storage systems

• Battery powered industrial applications

• Renewable energy

PH1

PH2

LG2

LG1

• Aftermarket automotive

• Redundant power supplies

• Robot and drones

Figure 1. Buck-Boost Power Train Topology

• Medical equipment

• Building and industrial automation

• Security surveillance

FN9299 Rev.3.1

May 27, 2021

Page 1 of 53

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与ISL81601相关器件

型号	品牌	获取价格	描述	数据表
ISL81801	RENESAS	获取价格	80V Bidirectional 4-Switch Synchronous Buck-Boost Controller
ISL81802	RENESAS	获取价格	80V Dual Synchronous Buck Controller
ISL81805	RENESAS	获取价格	80V Dual or 2-Phase Synchronous Boost Controller
ISL81806	RENESAS	获取价格	80V Dual Synchronous Buck Controller Optimized to Drive E-mode GaN FET
ISL81807	RENESAS	获取价格	80V Dual or 2-Phase Synchronous Boost Controller Optimized to Drive E-mode GaN FET
ISL8200AM	INTERSIL	获取价格	Complete Current Share 10A DC/DC Power Module
ISL8200AM	RENESAS	获取价格	Complete Current Share 10A DC/DC Power Module
ISL8200AMEV1PHZ	RENESAS	获取价格	Complete Current Share 10A DC/DC Power Module
ISL8200AMIRZ	INTERSIL	获取价格	Complete Current Share 10A DC/DC Power Module
ISL8200AMIRZ	RENESAS	获取价格	Complete Current Share 10A DC/DC Power Module

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