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ISL62392HRTZ 其他数据使用手册 - Intersil（英特矽尔）
制造商:
Intersil（英特矽尔）
分类:
电源监控芯片
封装:
TQFN-28
描述:
高效率，三路输出系统电源控制器，用于笔记本电脑 High-Efficiency, Triple-Output System Power Supply Controller for Notebook Computers
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ISL62392HRTZ数据手册
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1
FN6666.7
ISL62391, ISL62392, ISL62391C, ISL62392C
High-Efficiency, Triple-Output System
Power Supply Controller for Notebook
Computers
The ISL62391, ISL62392, ISL62391C and ISL62392C
controller generate supply voltages for battery-powered
systems. It includes two pulse-width modulation (PWM)
controllers, adjustable from 0.6V to 5.5V, and a linear
regulator (LDO3) that generates a fixed 3.3V and can deliver
up to 100mA. The ISL62391, ISL62392, ISL62391C and
ISL62392C include on-board power-up sequencing, a
power-good (PGOOD) output, digital soft-start, and internal
soft-stop output discharge that prevents negative voltages on
shutdown.
The patented R
3
PWM control scheme provides a low jitter
system with fast response to load transients. Light-load
efficiency is improved with period-stretching discontinuous
conduction mode (DCM) operation. To eliminate noise in audio
frequency applications, an ultrasonic DCM mode is included,
which limits the minimum switching frequency to 28kHz.
The ISL62391, ISL62391C and ISL62392, ISL62392C are
identical except for how their overvoltage protection is
handled. The ISL62391 and ISL62391C utilize a tri-state
overvoltage scheme, whereas the ISL62392 and ISL62392C
employ a soft-crowbar method.
The ISL62391, ISL62392, ISL62391C and ISL62392C are
available in a 28 Ld 4x4 TQFN package and operate over
the extended temperature range (-40°C to +100°C).
Features
• High Performance R
3
Technology
• Fast Transient Response
• ±1% Output Voltage Accuracy
• 2 Fully Programmable Switch-Mode Power Supplies
• Programmable Switching Frequency
• Fixed 3.3V LDO Output
• Internal Soft-Start and Soft-Stop Output Discharge
• Wide Input Voltage Range: 5.5V to 25V
• Full and Ultrasonic Pulse-Skipping Mode
• Power-Good Indicator
• Overvoltage, Undervoltage and Overcurrent Protection
• Thermal Monitor and Protection
• Pb-Free (RoHS Compliant)
Applications
• Notebook and Sub-Notebook Computers
• PDAs and Mobile Communication Devices
• 3-Cell and 4-Cell Li+ Battery-Powered Devices
Pinout
ISL62391, ISL62392, ISL62391C, ISL62392C
(28 LD 4X4 TQFN)
TOP VIEW
FB2
VOUT2
ISEN2
OCSET2
EN2
PHASE2
UGATE2
VOUT1
ISEN1
OCSET1
EN1
PHASE1
UGATE1
BOOT1
PGOOD
FSET2
FCCM
VCC
LDO3EN
FSET1
FB1
BOOT2
LGATE2
PGND
PVCC
VIN
LDO3
LGATE1
1
2
3
4
5
6
7
21
20
19
18
17
16
15
28 27 26 25 24 23 22
8 9 10 11 12 13 14
CENTER PAD:
GND
Data Sheet August 22, 2013
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Copyright Intersil Americas LLC 2008, 2011, 2013. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
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