UCD7230A 数字功率兼容同步降压驱动器
UCD7230A 描述
The UCD7230A is one in the UCD7k family of digital control compatible drivers for applications utilizing digital control techniques or applications requiring fast local peak current limit protection.
The UCD7230A is a MOSFET gate driver specifically designed for synchronous buck applications. It is ideally suited to provide the bridge between digital controllers such as the UCD91xx or the UCD92xx and the power stage. With cycle-by-cycle current limit protection, the UCD7230A device protects the power stage from faulty input signals or excessive load currents.
The UCD7230A includes high-side and low-side gate drivers which utilize Texas Instrument’s TrueDrive output architecture. This architecture delivers rated current into the gate capacitance of a MOSFET during the Miller plateau region of the switching
|
UCD7230 |
UCD7230A |
UCD7231 |
| No. of Outputs |
1 |
1 |
1 |
| Driver Configuration |
Dual |
Dual |
Dual |
| VCC(Min)(V) |
4.5 |
4.5 |
4.7 |
| VCC(Max)(V) |
15 |
15 |
15 |
| Peak Output Current(A) |
4 |
4 |
6 |
| Prop Delay(ns) |
30 |
30 |
50 |
| Input Threshold |
CMOSTTL |
CMOSTTL |
COMSTTL |
| Pin/Package |
20HTSSOP, 20VQFN |
20VQFN |
20QFN |
| Operating Temperature Range(°C) |
-40 to 105 |
-40 to 105 |
-40 to 125 |
UCD7230A 特性
- Input from Digital Controller Sets Operating Frequency and Duty Cycle
- Up to 2-MHz Switching Frequency
- Dual Current Limit Protection with Independently Adjustable Thresholds
- Fast Current Sense Circuit with Adjustable Blanking Interval Prevents Catastrophic Current Levels
- Digital Output Current Limit Flag
- Low Offset, Gain of 48, Differential Current Sense Amplifier
- 3.3-V, 10-mA Internal Regulator
- Dual TrueDrive™ High-Current Drivers
- 10-ns Typical Rise/Fall Times with 2.2-nF Loads
- 4.5-V to 15.5-V Supply Voltage Range
- APPLICATIONS
- Digitally-Controlled Synchronous-Buck Power Stages for Single and Multi-Phase Applications
- Especially Suited for Use with UCD91xx or UCD92xx Contollers
- High-Current Multi-Phase VRM/EVRD Regulators for Desktop, Server, Telecom and Notebook Processors
- Digitally-Controlled Synchronous-Buck Power Supplies Using µCs or the TMS320 DSP Family
UCD7230A 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| UCD7230ARGWR |
ACTIVE |
-40 to 105 |
0.60 | 1ku |
VQFN (RGW) | 20 |
3000 | LARGE T&R |
|
| UCD7230ARGWT |
ACTIVE |
-40 to 105 |
0.70 | 1ku |
VQFN (RGW) | 20 |
250 | SMALL T&R |
|
UCD7230A 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| UCD7230ARGWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
UCD7230ARGWR |
UCD7230ARGWR |
| UCD7230ARGWT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
UCD7230ARGWT |
UCD7230ARGWT |
UCD7230A 应用技术支持与电子电路设计开发资源下载
- UCD7230A 数据资料 dataSheet 下载.PDF
- TI 德州仪器Fusion Digital Power(TM) 控制驱动器产品选型与价格 . xls
- 照明和显示屏电源选择指南 (PDF 1427 KB)
- QFN Layout Guidelines (PDF 1279 KB)
- 笔记本电脑指南 (Rev. A) (PDF 2774 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- PowerPAD™ Made Easy (PDF 57 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
UCD7230A 相关工具
