計算工具
產品規格表
LM5155-Q1
- AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C to +125°C T A
- Functional Safety-Capable
- Documentation available to aid functional safety system design
- Wide input operating range for car and portable battery applications
- 3.5-V to 45-V Operating range
- 2.97-V to 16-V When BIAS = VCC
- Minimum boost supply voltage 1.5 V when BIAS ≥ 3.5 V
- Input transient protection up to 50 V
- Minimized battery drain
- Low shutdown current (I Q ≤ 2.6 µA)
- Low operating current (I Q ≤ 480 µA)
- Small solution size and low cost
- Maximum switching frequency of 2.2 MHz
- 12-Pin WSON package (3 mm × 2 mm) with wettable flanks and non-wettable flank option
- Integrated error amplifier allows primary-side regulation without optocoupler (flyback)
- Minimized undershoot during cranking (start-stop application)
- Higher efficiency with low-power dissipation
- 100-mV ±7% Low current limit threshold
- Strong 1.5-A peak standard MOSFET driver
- Supports external VCC supply
- Avoid AM band interference and crosstalk
- Optional clock synchronization
- Dynamically programmable switching frequency from 100 kHz to 2.2 MHz
- Integrated protection features
- Constant peak current limiting over input voltage
- Optional hiccup mode short-circuit protection (see the Device Comparison Table)
- Programmable line UVLO
- OVP protection
- Thermal shutdown
- Accurate ±1% accuracy feedback reference
- Programmable extra slope compensation
- Adjustable soft start
- PGOOD indicator
- Create a custom design using the LM5155x with the WEBENCH power designer
The LM5155x-Q1 (LM5155-Q1 and LM51551-Q1) is a wide input range, non-synchronous boost controller that uses peak current mode control. The device can be used in boost, SEPIC, and flyback topologies.
The LM5155x-Q1 can start up from a 1-cell battery with a minimum of 2.97 V if the BIAS pin is connected to the VCC pin. It can operate with the input supply voltage as low as 1.5 V if the BIAS pin is greater than 3.5 V.
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開發板
LM5155EVM-BST — LM5155 升壓控制器評估模組
The LM5155EVM-BST evaluation module showcases the features and performance of the LM5155, wide input non-synchronous boost controller. The standard configuration is designed to provide a regulate output of 24V at 2A from an input of 6V to 18V, switching at 440 kHz.
This EVM is designed for ease of (...)
使用指南: PDF
開發板
LM5155EVM-FLY — LM5155 返馳式控制器評估模組
The LM5155EVM-FLY evaluation module showcases the features and performance of the LM5155 as a wide input non-synchronous flyback controller. The standard configuration is designed to provide a regulated output of 5V at 4A from an input of 18V to 36V, switching at 250 kHz. This evaluation module is (...)
使用指南: PDF
開發板
LM5155EVM-SEPIC — LM5155 SEPIC 評估模組
The LM5155EVM-SEPIC evaluation module showcases the features and performance of the LM5155 as wide input non-synchronous SEPIC controller. The standard configuration is designed to provide a regulated output of 12V at up to 2A from an input of 3V to 42V, switching at 2.2 MHz.
計算工具
SNVC240 — LM5155/56 Flyback Controller Quick Start Calculator
LM5155/56 Flyback Controller Quick Start Calculator
支援產品和硬體
產品
AC/DC 和 DC/DC 控制器 (外部 FET)
硬體開發
開發板
計算工具
SNVR481 — LM5155/56 SEPIC Controller Quick Start Calculator
支援產品和硬體
產品
AC/DC 和 DC/DC 控制器 (外部 FET)
硬體開發
開發板
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WSON (DSS) | 12 | 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