UCC1804 低功耗 BiCMOS 电流模式 PWM
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 UCC1804 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
|
UCC1804 |
| Topology |
Boost, Flyback, Forward |
| Control Method |
Current |
| Duty Cycle (Max) (%) |
50 |
| Frequency (Max) (kHz) |
1000 |
| UVLO Thresholds On/Off (V) |
12.5/8.3 |
| Pin/Package |
8CDIP |
| Vin (Min) (V) |
8.3 |
| Vin (Max) (V) |
12 |
| Regulated Outputs (#) |
1 |
| Operating Temperature Range (C) |
-55 to 125 |
| Rating |
Military |
UCC1804 特性
- 100µA Typical Starting Supply Current
- 500µA Typical Operating Supply Current
- Operation to 1 MHz
- 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
UCC1804 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 |
| 5962-9451304MPA |
ACTIVE |
-55 to 125 |
11.38 | 100u |
CDIP (JG) | 8 |
1 | TUBE |
|
| UCC1804J |
ACTIVE |
-55 to 125 |
9.09 | 100u |
CDIP (JG) | 8 |
1 | TUBE |
|
| UCC1804J883B |
ACTIVE |
-55 to 125 |
11.38 | 100u |
CDIP (JG) | 8 |
1 | TUBE |
|
UCC1804 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 |
| 5962-9451304MPA |
TBD |
Call TI |
Call TI |
5962-9451304MPA |
5962-9451304MPA |
| UCC1804J |
TBD |
A42 |
N/A for Pkg Type |
UCC1804J |
UCC1804J |
| UCC1804J883B |
TBD |
A42 |
N/A for Pkg Type |
UCC1804J883B |
UCC1804J883B |
UCC1804 工具与软件
UCC1804 应用技术支持与电子电路设计开发资源下载
- UCC1804数据资料 dataSheet 下载.PDF
- TI 德州仪器电源管理选型与价格参考 . xls
- Current Doubler Rectifier Offers Ripple Current Cancellation
- DN-43 Simple Techniques to Generate a Negative Voltage Bias Supply
- DN-56A, Single Switch Flyback Circuit Converts + 5 V to +/- 12 V for RS-232/422
- DN-65 Considerations in Powering BiCMOS ICs
- DN-48 Versatile Low Power SEPIC Converter Accepts Wide Input Voltage Range
- U-133A UCC3800/1/2/3/4/5 BiCMOS Current Mode Control IC's
- U-111, Practical Considerations in Current Mode Power Supplies
- DN-54 Innovative Buck Regulator Uses High Side N-Channel Switch Without Complex
- DN-46 Highly Efficient Low Power DC to DC Inverter Converts +5V Input to -3V Out
