Datasheet Texas Instruments LM34925 — 数据表
| 制造商 | Texas Instruments |
| 系列 | LM34925 |
用于隔离式DC / DC转换器的7.5-100V宽Vin，100mA集成次级偏置稳压器
数据表
LM34925 Integrated Secondary-Side Bias Regulator for Isolated DC-DC Converters datasheet
PDF, 1.3 Mb, 修订版: F, 档案已发布: Nov 11, 2014
从文件中提取
价格
状态
| LM34925MR/NOPB | LM34925MRX/NOPB | LM34925SD/NOPB | LM34925SDX/NOPB | |
|---|---|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes | No | Yes | No |
打包
| LM34925MR/NOPB | LM34925MRX/NOPB | LM34925SD/NOPB | LM34925SDX/NOPB | |
|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 |
| Pin | 8 | 8 | 8 | 8 |
| Package Type | DDA | DDA | NGU | NGU |
| Industry STD Term | HSOIC | HSOIC | WSON | WSON |
| JEDEC Code | R-PDSO-G | R-PDSO-G | S-PDSO-N | S-PDSO-N |
| Package QTY | 95 | 2500 | 1000 | 4500 |
| Carrier | TUBE | LARGE T&R | SMALL T&R | LARGE T&R |
| Device Marking | S000YB | S000YB | L34925 | L34925 |
| Width (mm) | 3.9 | 3.9 | 4 | 4 |
| Length (mm) | 4.89 | 4.89 | 4 | 4 |
| Thickness (mm) | 1.48 | 1.48 | .8 | .8 |
| Pitch (mm) | 1.27 | 1.27 | .8 | .8 |
| Max Height (mm) | 1.7 | 1.7 | .8 | .8 |
| Mechanical Data | 下载 | 下载 | 下载 | 下载 |
参数化
| Parameters / Models | LM34925MR/NOPB | LM34925MRX/NOPB | LM34925SD/NOPB | LM34925SDX/NOPB |
|---|---|---|---|---|
| Iout, A | 0.1 | 0.1 | 0.1 | 0.1 |
| Package Group | SO PowerPAD | SO PowerPAD | WSON | WSON |
| Package Size: mm2:W x L, PKG | 8SO PowerPAD: 29 mm2: 6 x 4.9(SO PowerPAD) | 8SO PowerPAD: 29 mm2: 6 x 4.9(SO PowerPAD) | See datasheet (WSON) | See datasheet (WSON) |
| Rating | Catalog | Catalog | Catalog | Catalog |
| Soft Start | None | None | None | None |
| Special Features | Adjustable UVLO,Enable | Adjustable UVLO,Enable | Adjustable UVLO,Enable | Adjustable UVLO,Enable |
| Switching Frequency(Max), kHz | 1000 | 1000 | 1000 | 1000 |
| Switching Frequency(Min), kHz | 150 | 150 | 150 | 150 |
| Topology | Buck,Flybuck | Buck,Flybuck | Buck,Flybuck | Buck,Flybuck |
| Type | Converter (Integrated Switch) | Converter (Integrated Switch) | Converter (Integrated Switch) | Converter (Integrated Switch) |
| Vin(Max), V | 100 | 100 | 100 | 100 |
| Vin(Min), V | 9 | 9 | 9 | 9 |
| Vout(Max), V | 90 | 90 | 90 | 90 |
| Vout(Min), V | 1.25 | 1.25 | 1.25 | 1.25 |
生态计划
| LM34925MR/NOPB | LM34925MRX/NOPB | LM34925SD/NOPB | LM34925SDX/NOPB | |
|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant |
应用须知
- LM34925 Isolated Evaluation Board (Rev. A)PDF, 516 Kb, 修订版: A, 档案已发布: Apr 23, 2013
An isolated bias supply is implemented in this evaluation board with LM34925 Constant-On-Timeregulator. The LM34925 regulator integrates both the high and low side power switches essential forcreating isolated buck converter.The following include the board specifications:Input Range: 20V to 100VPrimary Output Voltage: 10VSecondary (Isolated) Output Voltage: - Fly-Buck(TM) converter provides EMC and isolation in PLC applicationsPDF, 201 Kb, 档案已发布: Jan 29, 2015
- AN-2292 Designing an Isolated Buck (Fly-Buck) Converter (Rev. C)PDF, 870 Kb, 修订版: C, 档案已发布: Dec 17, 2014
In many applications, one or more low-cost, simple to use, isolated power supplies working from input voltages up to 100 V are needed. Traditional solutions use flyback converters to generate this bias supply. Flyback designs typically utilize asymmetric transformers turns ratios for primary and secondary power windings, with an optocoupler and reference, or an auxiliary winding for feedback regul
模型线
系列: LM34925 (4)
制造商分类
- Semiconductors> Power Management> Offline and Isolated DC/DC Controllers and Converters> Isolated DC/DC Converter