ADM1068: Compact Multi- Voltage Sequencer and Supervisor
The ADM1068 Super Sequencer(R) is a configurable supervisory/ sequencing device that offers a single-chip solution for supply monitoring and sequencing in multiple supply systems.
The device also provides up to eight programmable inputs for monitoring undervoltage faults, overvoltage faults, or out-of-window faults on up to eight supplies. In addition, eight programmable outputs can be used as logic enables. Six of these programmable outputs can also provide up to a 12 V output for driving the gate of an N-FET that can be placed in the path of a supply.
The logical core of the device is a sequencing engine. This state-machine-based construction provides up to 63 different states. This design enables very flexible sequencing of the outputs, based on the condition of the inputs.
The ADM1068 is controlled via configuration data that can be programmed into an EEPROM. The whole configuration can be programmed using an intuitive GUI-based software package provided by Analog Devices, Inc.
产品应用领域 Applications
- Central office systems
- Servers/routers
- Multivoltage system line cards
- DSP/FPGA supply sequencing
- In-circuit testing of margined supplies
ADM1068 特点
- Complete Supervisory and Sequencing Solution for up to 8 Supplies
- 8 Supply Fault Detectors Enable Supervision of Supplies to Better than 1% Accuracy
- 4 Selectable Input Attenuators Allow Supervision:
Supplies up to 14.4 V on VH
Supplies up to 6 V on VP1–3 - High Impedance Input to Supply Fault Detector with Thresholds between 0.573 V and 1.375 V
- 4 Dual-function Inputs, VX1–4
- General-purpose Logic Input
- 8 Programmable Output Drivers PDO1–8:
Open Collector with External Pull-up
Push/pull Output, Driven to VDDCAP or VPn
Open Collector with Weak Pull-up to VDDCAP or VPn
Internally Charge-pumped High Drive for Use with External N-FET PDO1–6 only
ADM1068 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| ADM1068ASTZ | 量产 | 32 ld LQFP (7x7mm) | 32 | 工业 |
| ADM1068ASTZ-REEL7 | 量产 | 32 ld LQFP (7x7mm) | 32 | 工业 |
| EVAL-ADM1068LQEBZ | 量产 | 评估板 | - | 待定 |