AD5100: 系统管理IC,具有可编程四通道电压监控与管理功能
AD5100是一款可编程系统管理IC,它集成了四通道电压监控与一个看门狗管理电路,当系统出现故障时,能够关断外部电源、复位处理器,或禁用其它系统电子设备。AD5100也可用于保护系统,避免由于不正确的设备上电时序而引起的故障。AD5100内部极具鲁棒性的看门狗复位控制器能够监控两路30 V输入(具有关断和复位控制功能),一路2.3 V ~ 5.0 V输入,以及一路1.6 V ~ 8 V输入。大多数 ...More
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AD5100: 系统管理IC,具有可编程四通道电压监控与管理功能
Product Description
AD5100是一款可编程系统管理IC,它集成了四通道电压监控与一个看门狗管理电路,当系统出现故障时,能够关断外部电源、复位处理器,或禁用其它系统电子设备。AD5100也可用于保护系统,避免由于不正确的设备上电时序而引起的故障。AD5100内部极具鲁棒性的看门狗复位控制器能够监控两路30 V输入(具有关断和复位控制功能),一路2.3 V ~ 5.0 V输入,以及一路1.6 V ~ 8 V输入。大多数监控输入阈值与定时设置都可实时编程,或利用OTP特性由工厂永久设定。
AD5100是一款通用器件,适合于关键微处理器、DSP以及嵌入式系统工作在恶劣的汽车、工业、通信网络环境等系统监控应用。
AD5100采用紧凑型QSOP-16封装,可在扩展的汽车温度范围(-40°C ~ +125°C)内工作。
应用
Data Sheet, Rev. PrK, 10/07
特点
- 三路30 V监控输入,可对外部设备进行关断控制
- 可编程过压、欠压、上电与断电阈值,以及关断时序
- 关断报警,具有故障检测功能
- 外部设备的复位控制 - 一路5 V监控输入,可对外部设备进行复位控制
- 可编程复位阈值与保持时间 - MOST50兼容输入
- 利用V2MON与V4MON的诊断应用 - 两种监控功能
- 看门狗复位控制器,具有可编程超时和可选浮点输入
- 手动复位控制,用于外部设备
- 2个设备使能输出,以及6个可编程监控输入(参见表1)
- 工作范围
- 电源电压:3.0 V ~ 30 V
- 温度范围:–40°C ~ +125°C
- 低关断电流:10 µA - 高电压输入防迁移屏蔽引脚
数字接口与可编程性
- I2C兼容接口
- OTP1用于永久阈值与时序设置
- OTP可被改写,以实现动态调整
- 通过边沿触发信号上电
- 通过I2C软件断电
1 一次性可编程EPROM,在OTP激活前,阻值可任意调节。
| Part# | Reset Threshold Summary | Min Reset Timeout (ms) | Reset Output-Stage | Manual Reset Capability | Typ Watchdog Timeout (ms) | Power Fail Indicator | Package | Product Description | Price* (1000-4999) |
|---|---|---|---|---|---|---|---|---|---|
| AD5100 | Programmable | Adj | Active-Low/Push-Pull | Yes | adj. | Yes | SOP | System-Mgmt IC with Programmable Quad Voltage Monitoring and Supervisory Functions | $1.60 |
| ADM1232 | 4.37V & 4.62V | 250 | Active-High/Push-Pull, Active-Low/Open-Drain | Yes | 250, 500, 62.5 | No | DIP, SOIC, SOP | Microprocessor Supervisory Circuit | $0.95 |
| ADM13305 | 5 Options--0.6Adj to 4.55 | 140 | Active-High/Push-Pull, Active-Low/Push-Pull | Yes | 1.6 | - | SOIC | Dual Processor Supervisor with Watchdog | $0.96 |
| ADM6316 | 26 Options--2.5 to 5V | 1, 1,200, 140, 20 | Active-Low/Push-Pull | Yes | 102, 1,600, 25,600, 6.3 | No | SOT | Supervisory Ckt w/ Watchdog, Manual Reset & Active-Low, Push-Pull Reset Output in 5-Lead SOT-23 | $0.51 |
| ADM6318 | 26 Options--2.5 to 5V | 1, 1,200, 140, 20 | Active-High/Push-Pull, Active-Low/Push-Pull | No | 102, 1,600, 25,600, 6.3 | No | SOT | Supervisory Circuit with Watchdog and Dual Active-Low/Active-High Push-Pull Reset Outputs | $0.50 |
| ADM6320 | 26 Options--2.5 to 5V | 1, 1,200, 140, 20 | Active-Low/Open-Drain | Yes | 102, 1,600, 25,600, 6.3 | No | SOT | Supervisory Circuit with Watchdog, Manual Reset & Active-Low, Open-Drain Reset Output | $0.51 |
| ADM6321 | 26 Options--2.5 to 5V | 1, 1,200, 140, 20 | Active-High/Push-Pull, Active-Low/Open-Drain | No | 102, 1,600, 25,600, 6.3 | No | SOT | Supervisory Circuit with Watchdog and Dual Active-Low Open-Drain/Active-High Push-Pull Reset Outputs | $0.51 |
| ADM6821 | 9 Options--1.58 to 4.63V | 140 | Active-High/Push-Pull | Yes | 1,600 | No | SOT | Low Voltage Supervisory Circuit w/ Watchdog, Manual Reset and Active-High, Push-Pull Reset Output | - |
| ADM6822 | 9 Options--1.58 to 4.63V | 140 | Active-Low/Open-Drain | Yes | 1,600 | No | SOT | Low Voltage Supervisory Circuit w/ Watchdog, Manual Reset and Open-Drain Reset Output | - |
| ADM6823 | 9 Options--1.58 to 4.63V | 140 | Active-Low/Push-Pull | Yes | 1,600 | No | SOT | Low Voltage Supervisory Circuit w/ Watchdog, Manual Reset and Active-Low, Push-Pull Reset Output | $0.76 |
| ADM6824 | 9 Options--1.58 to 4.63V | 140 | Active-High/Push-Pull, Active-Low/Push-Pull | No | 1,600 | No | SOT | Low Voltage Supervisory Circuit w/ Watchdog, Manual Reset, Active-Hi & Low Push-Pull Reset Output | - |
| ADM699 | 4.65V | 140 | Active-High/Push-Pull, Active-Low/Push-Pull | No | 1,600 | No | DIP, SOIC | µP Supv w/ Watchdog, 4.65V Trip Point, Low Supply Current and Active Low Reset Output | $1.68 |
| ADM705 | 4.65V | 160 | Active-Low/Push-Pull | Yes | 1,600 | Yes | DIP, SOIC | µP Supv w/ 4.65V Trip Voltage, Watchdog, Pwr Fail, Manual Reset & Active Low Reset Output | $1.02 |
| ADM706 | 4.4V |
