MAX708: MicroPower Voltage Supervisor
The MAX707/708 are cost-effective system supervisor circuits designed to monitor Vcc in digital systems and provide a reset signal to the host processor when necessary. No external components are required. The reset output is driven active within 20 ? sec of Vcc falling through the reset voltage threshold. Reset is maintained with 200 mS of delay time after Vcc rise above the reset threshold. The MAX707/708 have a low quiescent current of 12 ?A at Vcc = 3.3 V, an active-high RESET and active-low RESET with a push-pull output. The output is guaranteed valid down to Vcc = 1.0 V. The MAX707/708 have a Manual Reset MR input and a +1.25 V threshold detector for power-fail input PFI. These devices are available in a Micro8 and SOIC-8 package.
Features- Precision Supply-Voltage MonitorMAX707: 4.63 V Reset Threshold VoltageMAX708: Standard Reset Threshold Voltages (Typical): 4.38 V, 3.08 V, 2.93 V, 2.63 V
- Reset Threshold Available from 1.6 V to 4.9 V with 100 mV Increments (Factory Option)
- 200 mS (Typ) Reset Timeout Delay
- 12 µA (Vcc = 3.3 V) Quiescent Current
- Active_High and Active_Low Reset Output
- Guaranteed RESET_L and RESET Output Valid to Vcc = 1.0 V
- Voltage Monitor for Power-Fail or Low-Battery Warning
- 8 Pin SO or Micro8 Package
- Pb-Free Packages are Available
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Applications- Computers
- Embedded System
- Battery Powered Equipment
- Critical µP Power Supply Monitor
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Data Sheets (1)
Package Drawings (2)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| MAX708CUA-TG | Active | Pb-free
Halide free | Micro8™ | 846A-02 | 1 | Tape and Reel | 4000 | Contact BDTIC |
| MAX708ESA-TG | Active | Pb-free
Halide free | SOIC-8 | 751-07 | 1 | Tape and Reel | 2500 | $0.4 |
| MAX708RCUA-TG | Active | Pb-free
Halide free | Micro8™ | 846A-02 | 1 | Tape and Reel | 4000 | Contact BDTIC |
| MAX708RESA-TG | Active | Pb-free
Halide free | SOIC-8 | 751-07 | 1 | Tape and Reel | 2500 | Contact BDTIC |
| MAX708SCUA-TG | Active | Pb-free
Halide free | Micro8™ | 846A-02 | 1 | Tape and Reel | 4000 | $0.4 |
| MAX708SESA-TG | Active | Pb-free
Halide free | SOIC-8 | 751-07 | 1 | Tape and Reel | 2500 | $0.4 |
| MAX708TCUA-TG | Active | Pb-free
Halide free | Micro8™ | 846A-02 | 1 | Tape and Reel | 4000 | Contact BDTIC |
| MAX708TESA-TG | Active | Pb-free
Halide free | SOIC-8 | 751-07 | 1 | Tape and Reel | 2500 | Contact BDTIC |
| MAX708CUA-T | Last Shipments | | Micro8™ | 846A-02 | 1 | Tape and Reel | 4000 | |
| MAX708ESA-T | Last Shipments | | SOIC-8 | 751-07 | 1 | Tape and Reel | 2500 | |
| MAX708RCUA-T | Last Shipments | | Micro8™ | 846A-02 | 1 | Tape and Reel | 4000 | |
| MAX708RESA-T | Last Shipments | | SOIC-8 | 751-07 | 1 | Tape and Reel | 2500 | |
| MAX708SCUA-T | Last Shipments | | Micro8™ | 846A-02 | 1 | Tape and Reel | 4000 | |
| MAX708SESA-T | Last Shipments | | SOIC-8 | 751-07 | 1 | Tape and Reel | 2500 | |
| MAX708TCUA-T | Last Shipments | | Micro8™ | 846A-02 | 1 | Tape and Reel | 4000 | |
| MAX708TESA-T | Last Shipments | | SOIC-8 | 751-07 | 1 | Tape and Reel | 2500 | |
Specifications
| Product | Voltages Monitored | VCC Max (V) | V(TO) Typ (V) | IQ Typ (µA) | Reset Active State | Reset Timer | Manual Reset | Watchdog Timer |
|---|
| MAX708CUA-TG | 2 | 5.5 | 4.38 | 12 | Low
High | No | Yes | No |
| MAX708ESA-TG | 2 | 5.5 | 4.38 | 12 | High
Low | No | Yes | No |
| MAX708RCUA-TG | 2 | 5.5 | 2.63 | 12 | Low
High | No | Yes | No |
| MAX708RESA-TG | 2 | 5.5 | 2.63 | 12 | High
Low | No | Yes | No |
| MAX708SCUA-TG | 2 | 5.5 | 2.93 | 12 | High
Low | No | Yes | No |
| MAX708SESA-TG | 2 | 5.5 | 2.93 | 12 | Low
High | No | Yes | No |
| MAX708TCUA-TG | 2 | 5.5 | 3.08 | 12 | Low
High | No | Yes | No |
| MAX708TESA-TG | 2 | 5.5 | 3.08 | 12 | Low
High | No | Yes | No |
