計算工具
SN6505A-Q1
- AEC-Q100 (Grade 1) qualified for automotive applications
- Device temperature grade 1: –40°C to +125°C, TA
- Functional Safety-Capable
- Documentation available to aid functional safety system design: SN6505A-Q1, SN6505B-Q1, SN6505D-Q1
- Push-pull driver for transformers
- Wide input voltage range: 2.25 V to 5.5 V
- High output drive: 1 A at 5 V supply
- Low RON 0.25 Ω max at 4.5 V supply
- Reduced conducted and radiated EMI
- Spread spectrum clocking
- Precision internal oscillator options: 160 kHz (SN6505A-Q1) and 420 kHz (SN6505B-Q1 and SN6505D-Q1)
- Synchronization of multiple devices with external clock input
- Slew-rate control
- 1.7 A Current-limit
- Low shutdown current: <1 µA
- Thermal shutdown
- Small 6-Pin SOT23 (DBV) package
- Soft-start enabled (SN6505A-Q1 and SN6505B-Q1) to reduce in-rush current and soft-start disabled (SN6505D-Q1) for fast start-up
The SN6505x-Q1 is a low-noise, low-EMI push-pull transformer driver, specifically designed for small form factor, isolated power supplies. It drives low-profile, center-tapped transformers from a 2.25 V to 5 V DC power supply. Very low noise and EMI are achieved by slew rate control of the output switch voltage and through Spread Spectrum Clocking (SSC). The SN6505x-Q1 consists of an oscillator followed by a gate drive circuit that provides the complementary output signals to drive ground-referenced N-channel power switches. The device includes two 1-A Power-MOSFET switches to ensure start-up under heavy loads. The switching clock can also be provided externally for accurate placement of switcher harmonics, or when operating with multiple transformer drivers. The internal protection features include a 1.7 A current limiting, under-voltage lockout, thermal shutdown, and break-before-make circuitry. SN6505A-Q1 and SN6505B-Q1 include a soft-start feature that prevents high inrush current during power up with large load capacitors. Soft-start feature has been disabled in SN6505D-Q1 for applications that require fast output start-up.SN6505A-Q1 has a 160 kHz internal oscillator for applications that need to minimize emissions whereas SN6505B-Q1 and SN6505D-Q1havea 420 kHz internal oscillators for applications that require higher efficiency and smaller transformer size. The SN6505x-Q1 is available in a small 6-pin SOT23/DBV package. The device operation is characterized for a temperature range from -40°C to 125°C.
技術文件
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檢視所有 5 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | SN6505x-Q1 Low-Noise 1-A Transformer Drivers for Isolated Power Supplies datasheet (Rev. D) | 2020年 10月 26日 | |
| Application note | How to Reduce Emissions in Push-Pull Isolated Power Supplies (Rev. A) | PDF | HTML | 2021年 10月 5日 | |
| Functional safety information | SN6505x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 2020年 6月 18日 | |
| Technical article | Why signal isolation matters in 48-V HEV/EV systems | PDF | HTML | 2019年 11月 20日 | |
| Third party document | Simplify Isolated CAN, Power Interfaces for HEV 48-V Systems | 2019年 7月 16日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
開發板
SN6505AEVM — 用於隔離式電源的 SN6505A 低雜訊 1A 變壓器驅動器評估模組 (160 kHz CLK)
The evaluation module (EVM), featuring the SN6505A transformer driver, also contains a small form-factor transformer, simple rectifier circuit, and voltage regulator that can be used to simulate a complete isolated power-supply system suitable for many applications.
使用指南: PDF
開發板
SN6507DGQEVM — 適用於低放射、500-mA 推挽式隔離電源供應器的 SN6507 評估模組
SN6507DGQEVM 允許使用者在隔離電源供應器應用中評估 SN6507 推挽式隔離變壓器驅動器的性能和功能。
模擬工具
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
模擬工具
TINA-TI — 基於 SPICE 的類比模擬程式
TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
使用指南: PDF
參考設計
PMP22992 — 採用降壓和推拉式轉換器的雙路 15-V、120-mA 隔離式偏壓電源參考設計
此隔離式電源供應器在 120 mA 下提供雙 +15-V 輸出。此電源供應器的設計主要用於對 MOSFET 型功率級加偏壓，而該功率級可爲單獨激發的同步馬達 (SSM) 產生激磁。此設計使用 LMR50410-Q1 降壓前置穩壓器與具展頻調變的 SN6505-Q1 開迴路變壓器驅動器。廣泛的輸入電壓範圍和靈活性使這款多用途設計適合需要隔離電源的廣泛應用領域。此內部參考設計是 PMP22760 的替代方案，而 PMP22760 採用 LM5180-Q1 型單晶片解決方案。
參考設計
TIDA-020019 — 車用隔離式 CAN 與電源前端參考設計
This reference design demonstrates reinforced isolated CAN communication, which is widely used in automotive environments, in a small footprint. In hybrid and electric vehicles (HEV/EVs), a high-voltage network is floating with respect to the chassis ground. Isolation is required for the power and (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23 (DBV) | 6 | Ultra Librarian |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。