Overview
The TL7700CPWG4, produced by Texas Instruments, is a bipolar integrated circuit designed for use as a reset controller in microcomputer and microprocessor systems. This device is part of the TL7700 family and is specifically packaged in an 8-pin TSSOP (Thin Shrink Small Outline Package). The TL7700CPWG4 features a precision voltage reference, a fast comparator, a timing generator, and an output driver, enabling it to generate a power-on reset signal in digital systems. It operates with a supply voltage range of 1.8 V to 40 V, making it versatile for various applications including ac line operation, portable battery operation, and automotive systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 1.8 to 40 | V |
| Internal Voltage Reference | 1.5 | V |
| Minimum Sense Voltage | 0.5 | V |
| Typical Supply Current (ICT) | 15 | µA |
| Typical Standby Current (Is) | 2.5 | µA |
| Package Type | 8-pin TSSOP | |
| Operating Temperature Range | -40 to 85 | °C |
Key Features
- Precision voltage reference: The TL7700CPWG4 includes an internal 1.5-V temperature-compensated voltage reference.
- Adjustable Sense Voltage: The sense voltage can be set to any value greater than 0.5 V using two external resistors.
- Fast Comparator and Timing Generator: These components enable the device to generate a power-on reset signal in digital systems.
- Low Supply Current: The device has a minimum supply current, making it suitable for ac line operation, portable battery operation, and automotive applications.
- Wide Supply Voltage Range: Operates with a supply voltage range of 1.8 V to 40 V.
Applications
- Microcomputer and Microprocessor Systems: The TL7700CPWG4 is designed to serve as a reset controller in these systems.
- Automotive Systems: Its wide supply voltage range and low supply current make it suitable for automotive applications.
- Portable Battery Operation: Ideal for battery-powered devices due to its low standby current.
- AC Line Operation: Can be used in systems powered by ac lines due to its stable operation over a wide voltage range.
Q & A
- What is the primary function of the TL7700CPWG4?
The primary function of the TL7700CPWG4 is to serve as a reset controller in microcomputer and microprocessor systems.
- What is the range of the supply voltage for the TL7700CPWG4?
The supply voltage range for the TL7700CPWG4 is from 1.8 V to 40 V.
- How can the sense voltage be adjusted in the TL7700CPWG4?
The sense voltage can be adjusted to any value greater than 0.5 V using two external resistors.
- What is the typical supply current of the TL7700CPWG4?
The typical supply current (ICT) is 15 µA.
- What is the typical standby current of the TL7700CPWG4?
The typical standby current (Is) is 2.5 µA.
- In what package type is the TL7700CPWG4 available?
The TL7700CPWG4 is available in an 8-pin TSSOP package.
- What are some common applications of the TL7700CPWG4?
Common applications include microcomputer and microprocessor systems, automotive systems, portable battery operation, and ac line operation.
- What is the internal voltage reference of the TL7700CPWG4?
The internal voltage reference is 1.5 V and is temperature-compensated.
- What is the operating temperature range of the TL7700CPWG4?
The operating temperature range is from -40°C to 85°C.
- Why is the TL7700CPWG4 suitable for automotive applications?
It is suitable due to its wide supply voltage range and low supply current, making it stable and efficient for automotive use.
