Overview
The MAX3232EIPWRG4 is a 3-V to 5.5-V multichannel RS-232 line driver and receiver produced by Texas Instruments. This device is designed to provide the electrical interface between an asynchronous communication controller and the serial-port connector, adhering to the TIA/EIA-232-F standards. It features two line drivers, two line receivers, and a dual charge-pump circuit that enables operation from a single 3-V to 5.5-V supply. The MAX3232EIPWRG4 is particularly useful in battery-powered systems and other applications requiring low power consumption and high reliability.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 3 | - | 5.5 | V |
| Operating Temperature (TA) | -40 | - | 85 | °C |
| Data Signaling Rate | 150 | 250 | - | kbit/s |
| Driver Output Slew Rate | 6 | - | 30 | V/μs |
| ESD Protection (HBM) | ±15 | - | - | kV |
| ESD Protection (IEC61000-4-2, Contact Discharge) | ±8 | - | - | kV |
| ESD Protection (IEC61000-4-2, Air-gap Discharge) | ±15 | - | - | kV |
| Supply Current (ICC) at VCC = 3.3 V to 5 V | 0.3 | 1 | - | mA |
| Output Resistance (rO) at VCC, V+, and V– = 0 V, VO = ±2 V | 300 | - | 10M | Ω |
Key Features
- Meets or exceeds the requirements of TIA/EIA-232-F standards.
- Operates from a single 3-V to 5.5-V supply using a dual charge-pump circuit.
- Includes two line drivers and two line receivers.
- Provides ±15 kV ESD protection for RS-232 bus pins using the Human Body Model (HBM) and IEC61000-4-2 standards.
- Supports data signaling rates up to 250 kbit/s.
- Maximum driver output slew rate of 30 V/μs.
- Outputs are protected against shorts to ground.
- Available in various packages including SOIC, SSOP, and TSSOP.
Applications
- Battery-powered systems.
- PDAs, notebooks, laptops, and palmtop PCs.
- Hand-held equipment.
- Any system requiring a reliable and low-power RS-232 interface.
Q & A
- What is the operating voltage range of the MAX3232EIPWRG4?
The MAX3232EIPWRG4 operates from a single 3-V to 5.5-V supply.
- What are the data signaling rates supported by the MAX3232EIPWRG4?
The device supports data signaling rates up to 250 kbit/s.
- What level of ESD protection does the MAX3232EIPWRG4 offer?
The device offers ±15 kV ESD protection using the Human Body Model (HBM) and ±8 kV and ±15 kV protection according to IEC61000-4-2 standards for contact and air-gap discharges, respectively.
- What is the maximum driver output slew rate of the MAX3232EIPWRG4?
The maximum driver output slew rate is 30 V/μs.
- How many line drivers and receivers does the MAX3232EIPWRG4 have?
The device includes two line drivers and two line receivers.
- What types of packages are available for the MAX3232EIPWRG4?
The device is available in SOIC, SSOP, and TSSOP packages.
- What is the purpose of the dual charge-pump circuit in the MAX3232EIPWRG4?
The dual charge-pump circuit increases, inverts, and regulates voltage at the V+ and V– pins, allowing operation from a single 3-V to 5.5-V supply.
- Are the outputs of the MAX3232EIPWRG4 protected against shorts to ground?
Yes, the outputs are protected against shorts to ground.
- What are some common applications for the MAX3232EIPWRG4?
Common applications include battery-powered systems, PDAs, notebooks, laptops, palmtop PCs, and hand-held equipment.
- What is the significance of the 'G4' suffix in the part number MAX3232EIPWRG4?
The 'G4' suffix denotes a Pb-free (green) package option, indicating that the device is free from lead and other hazardous materials.
