Overview
The MAX3318EIPWRG4, produced by Texas Instruments, is a dual-driver, dual-receiver RS-232-compatible transceiver designed for high-performance and low-power applications. This device operates from a single 2.25-V to 3-V supply and features integrated ±15-kV ESD protection for RS-232 I/O pins, ensuring robustness against electrostatic discharge. The MAX3318EIPWRG4 supports data rates up to 460 kbps and includes an auto-power-down plus feature that significantly reduces power consumption when the device is inactive.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 2.25 | 2.5 | 3 | V |
| Operating Supply Current | 0.3 | - | 2 | mA |
| Auto-Power-Down Supply Current | 1 | - | 10 | μA |
| Data Rate | - | - | 460 | kbps |
| ESD Protection (HBM) | - | - | ±15 kV | - |
| ESD Protection (IEC 61000-4-2 Air-Gap Discharge) | - | - | ±15 kV | - |
| ESD Protection (IEC 61000-4-2 Contact Discharge) | - | - | ±8 kV | - |
| Driver Output Voltage Swing | - | - | ±4 V | - |
| Receiver Input Voltage Range | -25 | - | 25 | V |
| Operating Temperature Range | -40 | - | 85 | °C |
Key Features
- Dual-driver, dual-receiver RS-232-compatible transceiver
- Integrated ±15-kV ESD protection for RS-232 I/O pins using Human-Body Model (HBM), IEC 61000-4-2 Air-Gap Discharge, and IEC 61000-4-2 Contact Discharge methods
- Operates from a single 2.25-V to 3-V supply with a dual charge pump
- Supports data rates up to 460 kbps
- Auto-power-down plus feature reduces supply current to 1 μA when inactive
- Logic-level output (READY) indicates when the charge pump is regulating and the device is ready to transmit
- Available in 20-pin SSOP and 20-pin TSSOP packages
Applications
- Battery-Powered Systems
- PDAs
- Cellular Phones
- Notebooks
- Hand-Held Equipment
- Pagers
Q & A
- What is the operating voltage range of the MAX3318EIPWRG4?
The MAX3318EIPWRG4 operates from a single 2.25-V to 3-V supply. - What is the maximum data rate supported by the MAX3318EIPWRG4?
The device supports data rates up to 460 kbps. - What type of ESD protection does the MAX3318EIPWRG4 offer?
The device features ±15-kV ESD protection using Human-Body Model (HBM), IEC 61000-4-2 Air-Gap Discharge, and IEC 61000-4-2 Contact Discharge methods. - How does the auto-power-down feature work?
The auto-power-down plus feature reduces the supply current to 1 μA when the device is inactive for more than 30 seconds or when the RS-232 cable is disconnected. - What are the typical operating current and standby current of the MAX3318EIPWRG4?
The typical operating supply current is 0.3 mA to 2 mA, and the auto-power-down supply current is 1 μA to 10 μA. - In what packages is the MAX3318EIPWRG4 available?
The device is available in 20-pin SSOP and 20-pin TSSOP packages. - What is the purpose of the READY output?
The READY output indicates when the charge pump is regulating and the device is ready to begin transmitting. - What is the receiver input voltage range of the MAX3318EIPWRG4?
The receiver input voltage range is -25 V to 25 V. - What is the operating temperature range of the MAX3318EIPWRG4?
The operating temperature range is -40°C to 85°C. - How many capacitors are required for the charge pump?
The charge pump requires four 0.1-μF capacitors.
