Overview
The TPS3700DDCR, produced by Texas Instruments, is a wide-supply window voltage detector designed for overvoltage and undervoltage detection. This device operates over a supply voltage range of 1.8 V to 18 V and features two high-accuracy comparators with an internal 400-mV reference. It can be used either as a window voltage detector or as two independent voltage monitors. The monitored voltages can be set using external resistors, making it versatile for various applications.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Supply Voltage (VDD) | 1.8 | - | 18 | V |
| Input Threshold Voltage (VIT+) | - | 400 mV | - | mV |
| Hysteresis (Vhys) | - | 5.5 mV | - | mV |
| Output Voltage (OUTA, OUTB) | -0.3 | - | 18 | V |
| Output Current (OUTA, OUTB) | - | - | 40 mA | mA |
| Operating Junction Temperature (TJ) | -40 | - | 125 | °C |
| Storage Temperature (Tstg) | -65 | - | 150 | °C |
| Start-up Delay | 150 | - | 450 | µs |
| Undervoltage Lockout (UVLO) | 1.3 | - | 1.7 | V |
Key Features
- Wide-supply voltage range: 1.8 V to 18 V
- Two high-accuracy comparators with an internal 400-mV reference
- Two open-drain outputs rated to 18 V for overvoltage and undervoltage detection
- Built-in hysteresis for filtering to reject brief glitches
- Monitored voltages can be set using external resistors
- Can be used as a window voltage detector or as two independent voltage monitors
- Outputs can be pulled up to 18 V using pullup resistors
- Immunity to short voltage transient spikes on the input terminals
Applications
- Industrial control systems
- Automotive systems
- Embedded computing modules
- DSP, microcontroller, or microprocessor applications
- Notebook and desktop computers
- Portable- and battery-powered products
- FPGA and ASIC applications
Q & A
- What is the supply voltage range of the TPS3700?
The TPS3700 operates over a supply voltage range of 1.8 V to 18 V.
- What is the internal reference voltage of the TPS3700?
The internal reference voltage is 400 mV.
- What is the purpose of the built-in hysteresis in the TPS3700?
The built-in hysteresis is for filtering to reject brief glitches and ensure stable output operation.
- How can the monitored voltages be set for the TPS3700?
The monitored voltages can be set using external resistors.
- What are the possible configurations of the TPS3700?
The TPS3700 can be used as a window voltage detector or as two independent voltage monitors.
- What is the maximum output current of the TPS3700?
The outputs can sink up to 40 mA.
- What is the operating junction temperature range of the TPS3700?
The operating junction temperature range is –40°C to 125°C.
- How does the TPS3700 handle voltage transient spikes on the input terminals?
The TPS3700 is relatively immune to short voltage transient spikes on the input terminals.
- What are some common applications of the TPS3700?
Common applications include industrial control systems, automotive systems, embedded computing modules, and more.
- What packages is the TPS3700 available in?
The TPS3700 is available in SOT-6 and 1.5-mm × 1.5-mm WSON-6 packages.
