UCD7242 数字双路同步降压功率驱动器
UCD7242 描述
The UCD7242 is a complete power system ready to drive two independent buck power supplies. High side MOSFETs, low side MOSFETs, drivers, current sensing circuitry and necessary protection functions are all integrated into one monolithic solution to facilitate minimum size and maximum efficiency. Driver circuits provide high charge and discharge current for the high-side NMOS switch and the low-side NMOS synchronous rectifier in a synchronous buck circuit. The MOSFET gates are driven to +6.25 V by an internally regulated VGG supply. The internal VGG regulator can be disabled to permit the user to supply an independent gate drive voltage. This flexibility allows a wide power conversion input voltage range of 2.
|
UCD7242 |
| No. of Outputs |
2 |
| VCC(Min)(V) |
2.2 |
| VCC(Max)(V) |
18 |
| Peak Output Current(A) |
10 |
| Pin/Package |
32QFN |
| Operating Temperature Range(°C) |
-40 to 125 |
UCD7242 特性
- Fully Integrated Power Switches With Drivers for Dual Synchronous Buck Converters
- Full Compatibility With TI Fusion Digital Power Supply Controllers, Such as the UCD92xx Family
- Wide Input Voltage Range: 4.75 V to 18 V
Operational Down to 2.2 V Input With an External Bias Supply
- Up to 10A Output Current per Channel
- Operational to 2 MHz Switching Frequency
- High Side Current Limit With Current Limit Flag
- Onboard Regulated 6 V Driver Supply From VIN
- Thermal Protection
- Temperature Sense Output – Voltage Proportional to Chip Temperature
- UVLO and OVLO Circuits Ensure Proper Drive Voltage
- Rated From –40°C to 125°C Junction Temperature
- RoHS Compliant
- Accurate On-Die Current Sensing (±5%)
- APPLICATIONS
- Digitally-Controlled Synchronous-Buck Power Stages
- High Current Dual-Phase VRM/EVRD Regulators for Desktop, Server, Telecom and Notebook Processors
UCD7242 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 |
| UCD7242RSJR |
ACTIVE |
-40 to 125 |
2.65 | 1ku |
QFN (RSJ) | 32 |
2500 | LARGE T&R |
|
| UCD7242RSJT |
ACTIVE |
-40 to 125 |
3.05 | 1ku |
QFN (RSJ) | 32 |
250 | SMALL T&R |
|
UCD7242 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 |
| UCD7242RSJR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
UCD7242RSJR |
UCD7242RSJR |
| UCD7242RSJT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
UCD7242RSJT |
UCD7242RSJT |
UCD7242 应用技术支持与电子电路设计开发资源下载
- UCD7242 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)
UCD7242 相关工具
