Datasheet Texas Instruments UC3903QG3 — 数据表
| 制造商 | Texas Instruments |
| 系列 | UC3903 |
| 零件号 | UC3903QG3 |
四路电源和线路监控器20-PLCC 0至70
数据表
价格
状态
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | No |
打包
| Pin | 20 |
| Package Type | FN |
| Industry STD Term | PLCC |
| JEDEC Code | S-PQCC-J |
| Package QTY | 46 |
| Carrier | TUBE |
| Device Marking | UC3903Q |
| Width (mm) | 8.96 |
| Length (mm) | 8.96 |
| Thickness (mm) | 4.06 |
| Pitch (mm) | 1.27 |
| Max Height (mm) | 4.57 |
| Mechanical Data | 下载 |
参数化
| # of Supplies Monitored | 4 |
| Iq(Typ) | 7000 uA |
| Monitored Voltage 1 (typ)(Nom) | Adjustable V |
| Monitored Voltage 2 (typ)(Nom) | Adjustable V |
| Operating Temperature Range | 0 to 70 C |
| Output Driver Type / Reset Output | Active-low,Open-drain |
| Package Group | PLCC |
| Package Size: mm2:W x L | 20PLCC: 80 mm2: 8.96 x 8.96(PLCC) PKG |
| Rating | Catalog |
| Reset Threshold Accuracy | 5 % |
| Special Features | Negative Voltage Monitoring,Over Voltage Sense |
| Threshold Voltage 1(Typ) | 1.8 V |
| Threshold Voltage 2 (typ)(Typ) | Adjustable V |
| Time Delay | Programmable ms |
| VCC(Max) | 40 V |
| VCC(Min) | 8 V |
| Watchdog Timer WDI | None sec |
生态计划
| RoHS | Compliant |
应用须知
- DN-33 Optocoupler Feedback Drive Techniques Using the UC3901 and UC3903PDF, 45 Kb, 档案已发布: Sep 5, 1999
A variety of low-cost supervisory ICs contain the required building blocks for the more demanding optocoupler feedback drive applications. Initially developed to address other specific power supply tasks several control ICs excel in the role as precision optocoupler control and drivers. This design note describes a basic optocoupler driver circuit and also a more advanced optocoupler drive circ - Optimizing Resistor Dividers at a Comparator (Rev. A)PDF, 120 Kb, 修订版: A, 档案已发布: Jun 3, 2013
- Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain OutputsPDF, 130 Kb, 档案已发布: Sep 19, 2011
模型线
系列: UC3903 (5)
- UC3903DW UC3903DWTR UC3903DWTRG4 UC3903Q UC3903QG3
制造商分类
- Semiconductors > Power Management > Supervisor and Reset IC