UCC28231 适用于总线转换器的高级 PWM 控制器，具有 3.3V 精密电压基准
UCC28231 描述
The UCC28230, UCC28231 PWM bus controllers are optimized for use in high efficiency, high power density, unregulated intermediate bus converters. Topologies include push-pull, half-bridge and full-bridge. External drivers, such asthe UCC27200 120-V high-side/low-side drivers, can be used with this controller.
Low cost, small size and highly efficient solutions are provided by innovations such as:
- Start-up frequency control circuit allowing small output inductor andthe ability to start with large intermediate bus capacitor.
- Load depended off-time control set by user.
Additional 1-D control outputs can be used for primary winding clamping in self-driven output synchronous rectifier applications or as drive signals for the control-driven synchronous rectifier
|
UCC28230 |
UCC28231 |
| Topology |
Push-Pull, Half-Bridge, Full-Bridge |
Push-Pull, Half-Bridge, Full-Bridge |
| Control Method |
Voltage Mode |
Voltage Mode |
| Duty Cycle(Max)(%) |
100 |
100 |
| Frequency(Max)(kHz) |
1000 |
1000 |
| UVLO Thresholds On/Off(V) |
6.3/5.7 |
6.3/5.7 |
| Pin/Package |
12USON, 14TSSOP |
12USON, 14TSSOP |
| Regulated Outputs(#) |
1 |
1 |
| Operating Temperature Range(°C) |
-55 to 125 |
-55 to 125 |
| Rating |
Catalog |
Catalog |
UCC28231 特性
- Programmable, Load Depended Off Time Control
- Frequency Controlled Start Up Allows Small Output Inductor, Low Ripple and Constant Current Start with Large Output Capacitor
- Two 0.2-A Push-Pull Outputs Provide Matched Control Signals D to External Drivers
- Two Additional 1- D Outputs for Optimal Use of Self-Driven or Control Driven Synchronous Rectifiers
- Unregulated, Fixed Volt-Second or Fixed Frequency Modes set by User
- Two, 1.5% Overall Accuracy Reference Voltage Options: 5-V for UCC28230 and 3.3-V for UCC28231
- Resistor Programmable Switching Frequency up to 1 MHz
- Cycle-by-Cycle Current Limit Allows Parallel Operation with Droop Based Current Sharing
- Single External Capacitor sets Soft-Start and Over Current Hiccup Mode Parameters with Restart
- Severe Short Circuit Hiccup with Restart or Latch Off Protection Option by External Resistor
- Input Under Voltage Lock Out
- Thermal Shutdown
- Thermally Enhanced 3 mm × 2 mm SON-12 and TSSOP-14 Package Options
- APPLICATIONS
- Intermediate Bus Isolated Converters
- DC-to-DC Transformers
UCC28231 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 |
| UCC28231DRNR |
ACTIVE |
-55 to 125 |
1.20 | 1ku |
USON (DRN) | 12 |
3000 | LARGE T&R |
231 |
| UCC28231DRNRG4 |
ACTIVE |
-55 to 125 |
1.20 | 1ku |
USON (DRN) | 12 |
3000 | LARGE T&R |
231 |
| UCC28231DRNT |
ACTIVE |
-55 to 125 |
1.35 | 1ku |
USON (DRN) | 12 |
250 | SMALL T&R |
231 |
| UCC28231DRNTG4 |
ACTIVE |
-55 to 125 |
1.35 | 1ku |
USON (DRN) | 12 |
250 | SMALL T&R |
231 |
| UCC28231PW |
ACTIVE |
-55 to 125 |
1.35 | 1ku |
TSSOP (PW) | 14 |
90 | TUBE |
28231 |
| UCC28231PWG4 |
ACTIVE |
-55 to 125 |
1.35 | 1ku |
TSSOP (PW) | 14 |
90 | TUBE |
28231 |
| UCC28231PWR |
ACTIVE |
-55 to 125 |
1.20 | 1ku |
TSSOP (PW) | 14 |
2000 | LARGE T&R |
28231 |
| UCC28231PWRG4 |
ACTIVE |
-55 to 125 |
1.20 | 1ku |
TSSOP (PW) | 14 |
2000 | LARGE T&R |
28231 |
UCC28231 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 |
| UCC28231DRNR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
UCC28231DRNR |
| UCC28231DRNRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
UCC28231DRNRG4 |
UCC28231DRNRG4 |
| UCC28231DRNT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
UCC28231DRNT |
| UCC28231DRNTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
UCC28231DRNTG4 |
UCC28231DRNTG4 |
| UCC28231PW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
UCC28231PW |
| UCC28231PWG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
UCC28231PWG4 |
UCC28231PWG4 |
| UCC28231PWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
UCC28231PWR |
| UCC28231PWRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
UCC28231PWRG4 |
UCC28231PWRG4 |
UCC28231 应用技术支持与电子电路设计开发资源下载
- UCC28231 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)
UCC28231 工具与软件