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ISL78220ANEZ中文资料PDF规格书
厂商型号 |
ISL78220ANEZ |
参数属性 | ISL78220ANEZ 封装/外壳为44-QFP;包装为管件;类别为集成电路(IC) > PMIC - 稳压器 - DC DC 开关式控制器;产品描述:IC REG CTRLR BOOST 44TQFP |
功能描述 | 6-Phase Interleaved Boost PWM Controller with Light Load Efficiency Enhancement |
文件大小 |
782.29 Kbytes |
页面数量 |
22 页 |
生产厂商 | Intersil Corporation |
企业简称 |
Intersil【瑞萨电子】 |
中文名称 | 瑞萨电子株式会社官网 |
原厂标识 | |
数据手册 | |
更新时间 | 2024-5-3 15:30:00 |
ISL78220ANEZ规格书详情
The ISL78220 6-phase controller is targeted for applications
where high efficiency (>95) and high power are required. The
multiphase boost converter architecture uses interleaved
timing to multiply channel ripple frequency and reduce input
and output ripple. Lower ripple results in fewer input/output
capacitors and therefore lower component cost and smaller
implementation area.
The ISL78220 has a dedicated pin to initiate the phase
dropping scheme for higher efficiency at light load by dropping
phases based on the load current, so the switching and core
losses in the converter are reduced significantly. As the load
increases, the dropped phase(s) are added back to
accommodate heavy load transients and improve efficiency.
Input current is sensed continuously by measuring the voltage
across a dedicated current sense resistor or by inductor DCR.
This current sensing provides precision channel-current
balancing, and per-phase overcurrent protection. A separate
totalizing current limit function provides overcurrent protection
for all the phases combined. This two-stage current protection
provides maximum performance and circuit reliability.
The ISL78220 can also provide for input voltage tracking via
the VREF2 pin. The comparison reference voltage will be the
lower of the VREF2 pin or the internal 2V reference. By using a
resistor network between VIN and VREF2 pin, the output
voltage can track input voltage to limit the output power during
automotive cranking conditions.
The ISL78220 can output a clock signal for expanding
operation to 12 phases, which offers high system flexibility.
The threshold-sensitive enable input is available to accurately
coordinate the start-up of the ISL78220 with any other voltage rail.
Features
• Peak current mode PWM Control with adjustable slope
compensation
• Precision resistor/DCR current sensing
• 2-, 3-, 4- or 6-phase operation
• Adjustable phase dropping/diode emulation/pulse skipping
for high efficiency at light load
• Phase dropping facilitated with companion FET driver
ISL78420 (featuring tri-level input control)
• Adjustable switching frequency or external synchronization
from 75kHz up to 1MHz per phase
• Over-temperature/overvoltage protection
• 2V ±1.0 internal reference
• Pb-free, 44 Ld 10x10 EP-TQFP package (RoHS compliant)
• -40°C to +125°C operating temperature range
• AEC Q100 qualified
Applications
• Automotive power supplies
- Start/stop DC/DC converter
- Electronic power steering systems (EPAS)
- Fuel pumps
- Injection system
• Audio trunk amplifier power supplies
• Telecom and industrial power supplies
产品属性
- 产品编号:
ISL78220ANEZ
- 制造商:
Renesas Electronics America Inc
- 类别:
集成电路(IC) > PMIC - 稳压器 - DC DC 开关式控制器
- 系列:
Automotive, AEC-Q100
- 包装:
管件
- 输出类型:
PWM 信号
- 功能:
升压
- 输出配置:
正
- 拓扑:
升压
- 输出阶段:
6
- 电压 - 供电 (Vcc/Vdd):
4.75V ~ 5.25V
- 频率 - 开关:
75kHz ~ 1MHz
- 占空比(最大):
91.7%
- 时钟同步:
是
- 控制特性:
使能,频率控制,电源良好,软启动
- 工作温度:
-40°C ~ 125°C(TJ)
- 安装类型:
表面贴装型
- 封装/外壳:
44-QFP
- 供应商器件封装:
44-MQFP(10x10)
- 描述:
IC REG CTRLR BOOST 44TQFP
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
INTERSIL |
23+ |
TQFP44 |
10000 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
INTERSIL |
TQFP44 |
265209 |
假一罚十原包原标签常备现货! |
询价 | |||
INTERSI |
2020+ |
TQFP44 |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
RENESAS/瑞萨 |
23+ |
EPTQFP-44 |
1600 |
全新、原装 |
询价 | ||
RENESAS-瑞萨. |
24+25+/26+27+ |
QFP-44 |
6328 |
一一有问必回一特殊渠道一有长期订货一备货HK仓库 |
询价 | ||
RENESAS(瑞萨)/IDT |
1932+ |
MQFP-44(10x10) |
2789 |
向鸿优势仓库库存-绝对原装正品-不做假货! |
询价 | ||
RENESAS(瑞萨)/IDT |
2112+ |
MQFP-44(10x10) |
105000 |
160个/托盘一级代理专营品牌!原装正品,优势现货,长 |
询价 | ||
Renesas Electronics America In |
24+ |
44-QFP |
9350 |
独立分销商,公司只做原装,诚心经营,免费试样正品保证 |
询价 | ||
INTERSI |
1412+ |
TQFP44 |
117 |
全新原装 实单必成 |
询价 | ||
INTERSI |
22+ |
TQFP44 |
32350 |
原装正品 假一罚十 公司现货 |
询价 |