多拓扑(降压、升压、sepic)高频直流/直流控制器
产品详细信息
参数
封装|引脚|尺寸
特性
- High-Frequency (2-MHz) Voltage Mode PWM Controller
- 1.8-V to 9.0-V Input Voltage Range
- 0.8-V to 8.0-V Output Voltage Range (Higher in Non-Synchronous Boost Topology)
- High-Efficiency Buck, Boost, SEPIC or Flyback (Buck-Boost) Topology
- Synchronous Rectification for High-Efficiency
- Drives External MOSFETs for High-Current Applications
- Synchronizable Fixed-Frequency PWM or Automatic Pulsed Frequency Modulation (PFM) Mode
- Built-In Soft-Start
- User Programmable Discontinuous or Continuous Conduction Mode
- Selectable Pulse-by-Pulse Current Limiting or Hiccup Mode Protection
- APPLICATIONS
- Networking Equipment
- Servers
- Base Stations
- Cellular Telephones
- Satellite Telephones
- GPS Devices
- Digital Still and Handheld Cameras
- Personal Digital Assistants (PDAs)
描述
The TPS43000 is a high-frequency, voltage-mode, synchronous PWM controller that can be used in buck, boost, SEPIC, or flyback topologies. This highly flexible, full-featured controller is designed to drive a pair of external MOSFETs (one N-channel and one P-channel), enabling it for use with a wide range of output voltages and power levels. With an automatic PFM mode, a shutdown current of less than 1 uA, a sleep-mode current of less than 100 uA and a full operating current of less than 2 mA at 1 MHz, it is ideal for building highly efficient, dc-to-dc converters.
The TPS43000 operates over a wide input voltage range of 1.8 V to 9.0 V. Typical power sources are distributed power systems, two to four nickel or alkaline batteries, or one to two lithium-ion cells. It can be used to generate regulated output voltages from as low as 0.8 V to 8 V or higher. It operates either in a fixed-frequency mode, where the user programs the frequency (up to 2 MHz), or in an automatic PFM mode. In the automatic mode, the controller goes to sleep when the inductor current goes discontinuous, and wakes up when the output voltage has fallen by 2%. In this hysteretic mode of operation, very high efficiency can be maintained over a very wide range of load current. The device can also be synchronized to an external clock source using the dual function SYNC/SD input pin.
The TPS43000 features a selectable two-level current-limit circuit which senses the voltage drop across the energizing MOSFET. The user can select either pulse-by-pulse current limiting or hiccup mode overcurrent protection. The TPS43000 also features a low-power (LP) mode (which reduces gate charge losses in the N-channel MOSFET at high input/output voltages), undervoltage lockout, and soft-start. The TPS43000 is available in a 16-pin TSSOP (PW) package.
技术文档
类型 | 标题 | 下载最新的英文版本 | 日期 | |
---|---|---|---|---|
* | 数据表 | Multimode High-Frequency PWM Controller 数据表 | 2001年 5月 9日 | |
选择指南 | 电源管理指南 2018 (Rev. K) | 2018年 7月 31日 | ||
选择指南 | 电源管理指南 2018 (Rev. R) | 2018年 6月 25日 | ||
应用手册 | Basic Calculation of a Boost Converter's Power Stage (Rev. C) | 2014年 1月 8日 | ||
用户指南 | 1-MHz, 3.3-V High Efficiency Synchronous Buck Converter | 2002年 6月 14日 | ||
应用手册 | 2.5-V to 5.0-V, 600-kHz High-Efficiency Synchronous Boost Converter With TPS4300 | 2002年 4月 29日 | ||
更多文献资料 | Seminar 900 Topic 6 - High Power Factor Prereg Using SEPIC | 2001年 2月 15日 |
设计与开发
有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。硬件开发
说明
The TPS43000EVM-001 is designed to help evaluate the TPS43000 full-featured controller. The TPS43000 is designed to drive a pair of external MOSFET's (N or P) and can be used with a wide range of output voltages and power levels. It can be widely used in networking equipment, servers, PDA's (...)
设计工具和仿真
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入门
- 申请使用 PSPICE-FOR-TI 仿真器
- 下载并安装
- 观看有关仿真入门的培训
特性
- 利用 Cadence PSpice 技术
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- 自动测量和后处理
- Monte Carlo 分析
- 最坏情形分析
- 热分析
特性
- 采用隔离式拓扑,如 Fly-Buck™、Fly-Buck-Boost、DCM 和 CCM 反激式
- 能够设计多达 6 路隔离式输出
- 针对所需的应用设计建议 IC
- 在设计中包含回路补偿
- 比较每个拓扑的效率、外部组件数和变压器电流
参考设计
设计文件
-
download PMP30284 BOM.pdf (79KB) -
download PMP30284 Assembly Drawing.pdf (86KB) -
download PMP30284 PCB.pdf (519KB) -
download PMP30284 CAD Files.zip (572KB) -
download PMP30284 Gerber.zip (32KB)
设计文件
-
download PMP5417 REVB BOM.pdf (91KB) -
download PMP5417 Gerber .zip (182KB)
设计文件
-
download PMP5624 BOM.pdf (26KB)
设计文件
-
download PMP4632 BOM.pdf (29KB)
设计文件
-
download PMP5719 BOM.pdf (28KB)
设计文件
-
download PMP5567 BOM .pdf (20KB)
设计文件
-
download PMP5165 BOM.pdf (62KB)
设计文件
CAD/CAE 符号
封装 | 引脚 | 下载 |
---|---|---|
TSSOP (PW) | 16 | 了解详情 |
订购与质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/FIT 估算
- 材料成分
- 认证摘要
- 持续可靠性监测
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