LTC4252B-2 负电压热插拔控制器
LTC®4252 负电压热插拔 (Hot SwapTM) 控制器允许在带电背板上安全地进行电路板的插拔操作。输出电流由 3 个电流限制级来控制：一个定时电路断路器、有源电流限制和一条快速前馈通路 (用于限制最坏情况灾难性故障条件下的峰值电流)。
当输入电源超过了期望的工作范围时，可调欠压和过压检测器将负载断接。对LTC4252 的电源输入进行并联调节，因而在非常高的电源电压条件下可安全的运作。一个多功能定时器负责延迟初始启动并控制电路断路器的响应时间。当检测到过大的 MOSFET 漏极电压时，可以加快电路断路器的响应时间，从而将 MOSFET 保持在其安全工作区 (SOA) 之内。一个可调软起动电路用于控制启动时的 MOSFET 浪涌电流。
LTC4252-2 提供了在故障之后自动重试的功能。LTC4252C-1 / LTC4252C-2 具有严格的 ±1% 欠压 / 过压门限准确度。LTC4252 可提供 8 引脚或 10 引脚 MSOP 封装。
LTC4252B 和 LTC4252C 改善了 LTC4252 和 LTC4252A 中并联稳压器的坚固性。
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LTC4252B-2 订购信息和价格参考Package Variations and Pricing
| 器件型号 | 封装 | 引脚 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) * |
| LTC4252-1CMS | MSOP | 10 | C | $3.00 | $2.35 |
| LTC4252-1CMS#PBF | MSOP | 10 | C | $3.00 | $2.35 |
| LTC4252-1CMS#TR | MSOP | 10 | C | $2.41 | |
| LTC4252-1CMS#TRPBF | MSOP | 10 | C | $2.41 | |
| LTC4252-1CMS8 | MSOP | 8 | C | $2.55 | $2.00 |
| LTC4252-1CMS8#PBF | MSOP | 8 | C | $2.55 | $2.00 |
| LTC4252-1CMS8#TR | MSOP | 8 | C | $2.06 | |
| LTC4252-1CMS8#TRPBF | MSOP | 8 | C | $2.06 | |
| LTC4252-1IMS | MSOP | 10 | I | $3.40 | $2.65 |
| LTC4252-1IMS#PBF | MSOP | 10 | I | $3.40 | $2.65 |
| LTC4252-1IMS#TR | MSOP | 10 | I | $2.71 | |
| LTC4252-1IMS#TRPBF | MSOP | 10 | I | $2.71 | |
| LTC4252-1IMS8 | MSOP | 8 | I | $2.90 | $2.30 |
| LTC4252-1IMS8#PBF | MSOP | 8 | I | $2.90 | $2.30 |
| LTC4252-1IMS8#TR | MSOP | 8 | I | $2.36 | |
| LTC4252-1IMS8#TRPBF | MSOP | 8 | I | $2.36 | |
| LTC4252-2CMS | MSOP | 10 | C | $3.00 | $2.35 |
| LTC4252-2CMS#PBF | MSOP | 10 | C | $3.00 | $2.35 |
| LTC4252-2CMS#TR | MSOP | 10 | C | $2.41 | |
| LTC4252-2CMS#TRPBF | MSOP | 10 | C | $2.41 | |
| LTC4252-2CMS8 | MSOP | 8 | C | $2.55 | $2.00 |
| LTC4252-2CMS8#PBF | MSOP | 8 | C | $2.55 | $2.00 |
| LTC4252-2CMS8#TR | MSOP | 8 | C | $2.06 | |
| LTC4252-2CMS8#TRPBF | MSOP | 8 | C | $2.06 | |
| LTC4252-2IMS | MSOP | 10 | I | $3.40 | $2.65 |
| LTC4252-2IMS#PBF | MSOP | 10 | I | $3.40 | $2.65 |
| LTC4252-2IMS#TR | MSOP | 10 | I | $2.71 | |
| LTC4252-2IMS#TRPBF | MSOP | 10 | I | $2.71 | |
| LTC4252-2IMS8 | MSOP | 8 | I | $2.90 | $2.30 |
| LTC4252-2IMS8#PBF | MSOP | 8 | I | $2.90 | $2.30 |
| LTC4252-2IMS8#TR | MSOP | 8 | I | $2.36 | |
| LTC4252-2IMS8#TRPBF | MSOP | 8 | I | $2.36 | |
| LTC4252A-1CMS | MSOP | 10 | C | $3.45 | $2.50 |
| LTC4252A-1CMS#PBF | MSOP | 10 | C | $3.45 | $2.50 |
| LTC4252A-1CMS#TR | MSOP | 10 | C | $2.56 | |
| LTC4252A-1CMS#TRPBF | MSOP | 10 | C | $2.56 | |
| LTC4252A-1IMS | MSOP | 10 | I | $3.90 | $2.90 |
| LTC4252A-1IMS#PBF | MSOP | 10 | I | $3.90 | $2.90 |
| LTC4252A-1IMS#TR | MSOP | 10 | I | $2.96 | |
| LTC4252A-1IMS#TRPBF | MSOP | 10 | I | $2.96 | |
| LTC4252A-2CMS | MSOP | 10 | C | $3.45 | $2.50 |
| LTC4252A-2CMS#PBF | MSOP | 10 | C | $3.45 | $2.50 |
| LTC4252A-2CMS#TR | MSOP | 10 | C | $2.56 | |
| LTC4252A-2CMS#TRPBF | MSOP | 10 | C | $2.56 | |
| LTC4252A-2IMS | MSOP | 10 | I | $3.90 | $2.90 |
| LTC4252A-2IMS#PBF | MSOP | 10 | I | $3.90 | $2.90 |
| LTC4252A-2IMS#TR | MSOP | 10 | I | $2.96 | |
| LTC4252A-2IMS#TRPBF | MSOP | 10 | I | $2.96 | |
| LTC4252BCMS-1#PBF | MSOP | 10 | C | $3.00 | $2.35 |
| LTC4252BCMS-1#TRPBF | MSOP | 10 | C | $2.41 | |
| LTC4252BCMS-2#PBF | MSOP | 10 | C | $3.00 | $2.35 |
| LTC4252BCMS-2#TRPBF | MSOP | 10 | C | $2.41 | |
| LTC4252BCMS8-1#PBF | MSOP | 8 | C | $2.55 | $2.00 |
| LTC4252BCMS8-1#TRPBF | MSOP | 8 | C | $2.06 | |
| LTC4252BCMS8-2#PBF | MSOP | 8 | C | $2.55 | $2.00 |
| LTC4252BCMS8-2#TRPBF | MSOP | 8 | C | $2.06 | |
| LTC4252BIMS-1#PBF | MSOP | 10 | I | $3.40 | $2.65 |
| LTC4252BIMS-1#TRPBF | MSOP | 10 | I | $2.71 | |
| LTC4252BIMS-2#PBF | MSOP | 10 | I | $3.40 | $2.65 |
| LTC4252BIMS-2#TRPBF | MSOP | 10 | I | $2.71 | |
| LTC4252BIMS8-1#PBF | MSOP | 8 | I | $2.90 | $2.30 |
| LTC4252BIMS8-1#TRPBF | MSOP | 8 | I | $2.36 | |
| LTC4252BIMS8-2#PBF | MSOP | 8 | I | $2.90 | $2.30 |
| LTC4252BIMS8-2#TRPBF | MSOP | 8 | I | $2.36 | |
| LTC4252CCMS-1#PBF | MSOP | 10 | C | $3.45 | $2.50 |
| LTC4252CCMS-1#TRPBF | MSOP | 10 | C | $2.56 | |
| LTC4252CCMS-2#PBF | MSOP | 10 | C | $3.45 | $2.50 |
| LTC4252CCMS-2#TRPBF | MSOP | 10 | C | $2.56 | |
| LTC4252CIMS-1#PBF | MSOP | 10 | I | $3.90 | $2.90 |
| LTC4252CIMS-1#TRPBF | MSOP | 10 | I | $2.96 | |
| LTC4252CIMS-2#PBF | MSOP | 10 | I | $3.90 | $2.90 |
| LTC4252CIMS-2#TRPBF | MSOP | 10 | I | $2.96 |
LTC4252B-2 数据手册及相关资料下载
- 数据手册(英文) : LTC4252B-1/LTC4252B-2 LTC4252C-1/LTC4252C-2 - Negative Voltage Hot Swap Controllers.PDF
- 设计要点 (中文) : DN353 - AdvancedTCA 热插拔控制器简化了功率分配.PDF
- 可靠性数据 : R427 Reliability Data .PDF
- 产品选型卡 : High Voltage Hot Swap Controllers.PDF
