UCC3805 低功耗 BiCMOS 电流模式 PWM
UCC3805 描述
The UCC1800/1/2/3/4/5 family of high-speed, low-power integrated circuits contain all of the control and drive components required for off-line and DC-to-DC fixed frequency current-mode switching power supplies with minimal parts count.
These devices have the same pin configuration as the UC1842/3/4/5 family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.
The UCC1800/1/2/3/4/5 family offers a variety of package options, temperature range options, choice of maximum duty cycle, and choice of critical voltage levels. Lower reference parts such as the UCC1803 and UCC1805 fit best into battery operated systems, while the higher reference and the higher UVLO hysteresis of the UCC1802 and UCC1804 make these ideal choices for use in off-line power supplies.
|
UCC2805 |
UCC3805 |
| 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) |
4.1/3.6 |
4.1/3.6 |
| Pin/Package |
8PDIP, 8SOIC, 8TSSOP |
8PDIP, 8SOIC, 8TSSOP |
| Regulated Outputs(#) |
1 |
1 |
| Operating Temperature Range(°C) |
-40 to 85 |
0 to 70 |
| Rating |
Catalog |
Catalog |
UCC3805 特性
- 100µA Typical Starting Supply Current
- 500µA Typical Operating Supply Current
- Operation to 1MHz
- Internal Soft Start
- Internal Fault Soft Start
- Internal Leading-Edge Blanking of the Current Sense Signal
- 1 Amp Totem-Pole Output
- 70ns Typical Response from Current-Sense to Gate Drive Output
- 1.5% Tolerance Voltage Reference
- Same Pinout as UC3842 and UC3842A
UCC3805 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 |
| UCC3805D |
ACTIVE |
-40 to 85 |
1.30 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
UCC3805 |
| UCC3805DG4 |
ACTIVE |
-40 to 85 |
1.30 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
UCC3805 |
| UCC3805DTR |
ACTIVE |
-40 to 85 |
1.20 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
UCC3805 |
| UCC3805DTRG4 |
ACTIVE |
-40 to 85 |
1.20 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
UCC3805 |
| UCC3805N |
ACTIVE |
-40 to 85 |
1.30 | 1ku |
PDIP (P) | 8 |
50 | TUBE |
UCC3805N |
| UCC3805NG4 |
ACTIVE |
-40 to 85 |
1.30 | 1ku |
PDIP (P) | 8 |
50 | TUBE |
UCC3805N |
| UCC3805PW |
ACTIVE |
-40 to 85 |
1.30 | 1ku |
TSSOP (PW) | 8 |
150 | TUBE |
3805 |
| UCC3805PWG4 |
ACTIVE |
-40 to 85 |
1.30 | 1ku |
TSSOP (PW) | 8 |
150 | TUBE |
3805 |
UCC3805 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 |
| UCC3805D |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
UCC3805D |
| UCC3805DG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
UCC3805DG4 |
UCC3805DG4 |
| UCC3805DTR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
|
UCC3805DTR |
| UCC3805DTRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
UCC3805DTRG4 |
UCC3805DTRG4 |
| UCC3805N |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
N/A for Pkg Type |
|
UCC3805N |
| UCC3805NG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
N/A for Pkg Type |
UCC3805NG4 |
UCC3805NG4 |
| UCC3805PW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
UCC3805PW |
| UCC3805PWG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
UCC3805PWG4 |
UCC3805PWG4 |
UCC3805 应用技术支持与电子电路设计开发资源下载
- UCC3805 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)
UCC3805 工具与软件
