LT1511CS8#TRPBF - 3A Battery Charger IC | Analog Devices
MPN： LT1511CS8#TRPBF ✓ 啟用中LT1511CS8#TRPBF 概覽
A battery charger IC is a specialized power management integrated circuit that controls the charging of rechargeable batteries, ensuring safe and efficient charging by regulating voltage and current. The LT1511CS8#TRPBF belongs to the category of linear battery chargers, which are part of the broader power management IC family. These devices are essential in applications where battery life and safety are critical, such as in portable electronics, medical devices, and industrial equipment.
Key features of the LT1511CS8#TRPBF include a 3A maximum charge current, constant-current/constant-voltage charging algorithm, and input current limiting. The device also includes a precision reference for accurate voltage regulation and a low-dropout design that maximizes charging efficiency. The SOIC-8 package provides a compact footprint, ideal for space-constrained designs.
The LT1511CS8#TRPBF uses a linear charging topology, which offers simplicity and low noise compared to switching chargers. It includes thermal regulation to prevent overheating, and its input current limiting feature allows operation from limited-power sources such as USB ports. The device is designed for reliable operation over a wide temperature range, making it suitable for demanding environments.
Typical applications include portable devices, battery-powered tools, and industrial battery charging systems. The LT1511CS8#TRPBF is particularly well-suited for applications requiring a simple, cost-effective charging solution with high reliability.
When designing with this device, ensure proper thermal management by providing adequate PCB copper area for heat dissipation, especially at high charge currents. The input current limiting feature should be configured to match the capabilities of the power source to avoid overloading.
直接替換替代品，適用於 LT1511CS8#TRPBF — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
LT1510CS8#TRPBF
✅ 直接替換📋 參考替代品（不在目錄中）
LT1511CS8#TRPBF 規格
| Charge Current | 3 A (max) |
| 輸入電壓範圍 | 4.5 V to 30 V |
| Charging Algorithm | Constant-Current / Constant-Voltage |
| Input Current Limit | Programmable |
| 封裝 | SOIC-8 |
| 安裝類型 | Surface Mount |
| 工作溫度範圍 | 0°C to 70°C |
| Battery Chemistry | Multi-Chemistry |
| Charge Voltage Accuracy | ±1% |
| 過熱關機 | Yes |
| RoHS 狀態 | Compliant |
| REACH Status | Compliant |
| Lead-Free | Yes |
LT1511CS8#TRPBF 腳位配置
| 腳位 1 | SENSE — Charge current sense input |
| 腳位 2 | BAT — Battery connection |
| 腳位 3 | GND — Ground |
| 腳位 4 | GND — Ground |
| 腳位 5 | VCC — Input supply voltage |
| 腳位 6 | VCC — Input supply voltage |
| 腳位 7 | PROG — Charge current programming |
| 腳位 8 | SHDN — Shutdown control |
典型應用
LT1511CS8#TRPBF 適用於 6 應用s: Portable Electronics, Industrial Battery Charging, Medical Devices, Automotive Accessories, Solar-Powered Systems, IoT Devices.
Portable Electronics
The LT1511CS8#TRPBF is ideal for charging batteries in portable devices such as smartphones, tablets, and handheld instruments. Its 3A charge current enables fast charging, while the input current limiting allows operation from USB or low-power adapters. The constant-current/constant-voltage algorithm ensures safe and efficient charging, extending battery life. The compact SOIC-8 package fits space-constrained designs, and the wide input voltage range accommodates various power sources.
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Industrial Battery Charging
In industrial settings, the LT1511CS8#TRPBF provides reliable charging for backup batteries in equipment such as sensors, controllers, and communication devices. Its wide input voltage range (4.5V to 30V) allows direct connection to industrial power rails. The thermal shutdown and precision voltage regulation ensure safe operation in harsh environments. The device's simplicity reduces design complexity, making it a cost-effective solution for industrial battery management.
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Medical Devices
The LT1511CS8#TRPBF is suitable for medical devices that require reliable battery charging, such as portable monitors and diagnostic equipment. Its constant-current/constant-voltage charging ensures battery safety and longevity, critical for medical applications. The device's low quiescent current and thermal regulation contribute to energy efficiency and reliability. The SOIC-8 package is compatible with standard manufacturing processes, facilitating integration into medical device designs.
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Automotive Accessories
The LT1511CS8#TRPBF can be used in automotive accessories such as portable navigation devices, dash cameras, and emergency chargers. Its wide input voltage range handles the varying voltage from vehicle power systems. The input current limiting prevents overloading the vehicle's electrical system. The device's robust design and thermal protection make it suitable for the automotive environment, ensuring reliable charging performance.
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Solar-Powered Systems
The LT1511CS8#TRPBF is well-suited for solar-powered systems where input voltage varies with sunlight intensity. Its wide input range (4.5V to 30V) accommodates the output of solar panels. The input current limiting allows the charger to draw only the available current from the panel, maximizing energy harvest. The constant-voltage regulation ensures batteries are charged safely without overcharging, making it ideal for off-grid applications.
推薦
IoT Devices
For IoT devices that rely on battery power, the LT1511CS8#TRPBF provides efficient charging from various sources, including USB and small adapters. Its low quiescent current helps preserve battery life when the device is in standby. The compact SOIC-8 package is ideal for space-constrained IoT modules. The device's simplicity and reliability make it a popular choice for battery management in IoT applications.
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推薦產品摘要
工程參考資料，適用於 LT1511CS8#TRPBF — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | LT1510CS8#TRPBF | LT1511CSW#TRPBF | LT1511CSW#PBF |
|---|---|---|---|---|
| Package | SOIC-8 | SOIC-8 | 24-SOIC | 24-SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Maximum Charge Current | 3 A | 1.5 A | 3 A | 3 A |
| Input Voltage Range | 4.5V to 30V | 4.5V to 30V | 4.5V to 30V | 4.5V to 30V |
| Charging Algorithm | CC/CV | CC/CV | CC/CV | CC/CV |
| Input Current Limit | Yes | Yes | Yes | Yes |
| Thermal Shutdown | Yes | Yes | Yes | Yes |
| Charge Voltage Accuracy | ±1% | ±1% | ±1% | ±1% |
主要差異化特點
- Higher charge current (3A) compared to LT1510CS8#TRPBF (對比LT1510CS8#TRPBF)
- Compact SOIC-8 package (對比LT1511CSW#TRPBF)
- Input current limiting (對比LT1510CS8#TRPBF)
設計說明
At 3A charge current, the LT1511CS8#TRPBF can dissipate significant power, especially with high input-to-battery voltage differentials. Ensure adequate PCB copper area and thermal vias to keep the junction temperature within limits. Consider using a lower charge current if thermal constraints are tight.
Place the sense resistor and input/output capacitors close to the IC pins to minimize parasitic inductance and ensure stable operation. Use a ground plane to reduce noise and improve thermal performance. Follow the layout guidelines in the datasheet for optimal results.
Do not exceed the maximum input voltage of 30V. Ensure the battery is connected with correct polarity to avoid damage. The PROG pin must be properly configured to set the desired charge current; incorrect programming can lead to overcharging or undercharging.
合規資訊
RoHS and REACH compliant per distributor data. Not AEC-Q100 qualified.
