UCC28C45 BiCMOS 低功率电流模式 PWM 控制器
UCC28C45 描述
UCC38C4x family is a high-performance current-mode PWM controller. It is an enhanced BiCMOS version with pin-for-pin compatibility to the industry standard UC384xA family and UC384x family of PWM controllers. In addition, lower startup voltage versions of 7 V are offered as UCC38C40 and UCC38C41.
Providing necessary features to control fixed frequency, peak current-mode power supplies, this family offers the following performance advantages. The device offers high-frequency operation up to 1 MHz with low start-up and operating currents, thus minimizing start-up loss and low operating power consumption for improved efficiency. The device also features a very fast current-sense-to-output delay time of 35 ns and a ±1 A peak output current capability with improved rise and fall times for driving large external MOSFETs directly.
|
UCC28C45 |
UCC38C45 |
| Topology |
Boost, Flyback, Forward |
Boost, Buck, Flyback, Forward |
| Control Method |
Current Mode |
Current Mode |
| Duty Cycle(Max)(%) |
50 |
50 |
| Frequency(Max)(kHz) |
1000 |
1000 |
| UVLO Thresholds On/Off(V) |
8.4/7.6 |
8.4/7.6 |
| Pin/Package |
8MSOP, 8PDIP, 8SOIC |
8MSOP, 8PDIP, 8SOIC |
| Regulated Outputs(#) |
1 |
1 |
| Operating Temperature Range(°C) |
-40 to 105,-40 to 85 |
0 to 70 |
| Rating |
Catalog |
Catalog |
UCC28C45 特性
- Enhanced Replacement for UC3842A Family With Pin-to-Pin Compatibility
- 1-MHz Operation
- 50-uA Start-Up Current, 100-uA Maximum
- Low Operating Current of 2.3 mA at 52 kHz
- Fast 35-ns Cycle-by-Cycle Overcurrent Limiting
- ±1-A Peak Output Current
- Rail-to-Rail Output Swings with 25-ns Rise and 20-ns Fall Times
- ±1% Initial Trimmed 2.5-V Error Amplifier Reference
- Trimmed Oscillator Discharge Current
- New Under Voltage Lockout Versions
- MSOP-8 Package Minimizes Board Space
- APPLICATIONS
- Switch-Mode Power Supplies
- dc-to-dc Converters
- Board Mount Power Modules
UCC28C45 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 |
| UCC28C45D |
ACTIVE |
-40 to 105 |
0.80 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
28C45 |
| UCC28C45DG4 |
ACTIVE |
-40 to 105 |
0.80 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
28C45 |
| UCC28C45DGK |
ACTIVE |
-40 to 105 |
0.80 | 1ku |
MSOP (DGK) | 8 |
80 | TUBE |
28C45 |
| UCC28C45DGKG4 |
ACTIVE |
-40 to 105 |
0.80 | 1ku |
MSOP (DGK) | 8 |
80 | TUBE |
28C45 |
| UCC28C45DGKR |
ACTIVE |
-40 to 85 |
0.75 | 1ku |
MSOP (DGK) | 8 |
2500 | LARGE T&R |
28C45 |
| UCC28C45DGKRG4 |
ACTIVE |
-40 to 85 |
0.75 | 1ku |
MSOP (DGK) | 8 |
2500 | LARGE T&R |
28C45 |
| UCC28C45DR |
ACTIVE |
-40 to 105 |
0.75 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
28C45 |
| UCC28C45DRG4 |
ACTIVE |
-40 to 105 |
0.75 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
28C45 |
| UCC28C45P |
ACTIVE |
-40 to 105 |
0.80 | 1ku |
PDIP (P) | 8 |
50 | TUBE |
UCC28C45P |
| UCC28C45PG4 |
ACTIVE |
-40 to 105 |
0.80 | 1ku |
PDIP (P) | 8 |
50 | TUBE |
UCC28C45P |
UCC28C45 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 |
| UCC28C45D |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
UCC28C45D |
| UCC28C45DG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
UCC28C45DG4 |
UCC28C45DG4 |
| UCC28C45DGK |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
UCC28C45DGK |
| UCC28C45DGKG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
UCC28C45DGKG4 |
UCC28C45DGKG4 |
| UCC28C45DGKR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
UCC28C45DGKR |
| UCC28C45DGKRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
UCC28C45DGKRG4 |
UCC28C45DGKRG4 |
| UCC28C45DR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
UCC28C45DR |
| UCC28C45DRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
UCC28C45DRG4 |
UCC28C45DRG4 |
| UCC28C45P |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
N/A for Pkg Type |
|
UCC28C45P |
| UCC28C45PG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
N/A for Pkg Type |
UCC28C45PG4 |
UCC28C45PG4 |
UCC28C45 应用技术支持与电子电路设计开发资源下载
- UCC28C45 数据资料 dataSheet 下载.PDF
- TI 德州仪器AC/DC 和 DC/DC 电源产品选型与价格参考 . xls
- Dual MOSFET Driver
(PDF 498 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)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF
1305 KB)
- Analog-to-Digital Converter Grounding Practices Affect System
Performance (PDF 56 KB)
- Principles of Data Acquisition and Conversion (PDF 50 KB)
- Interleaving Analog-to-Digital Converters (PDF 64 KB)
- What
Designers Should Know About Data Converter Drift (PDF 95 KB)
- Giving Delta-Sigma Converters a Gain Boost with a Front End
Analog Gain Stage (PDF 70 KB)
- Programming Tricks for Higher Conversion Speeds Utilizing Delta
Sigma Converters (PDF 105 KB)
UCC28C45 工具与软件