MAX44211 Datasheet, PDF (1/15 Pages) Maxim Integrated Products – Overtemperature Shutdown Active

MAX44211
EVALUATION KIT AVAILABLE
High-Current Differential Line Driver
for Powerline Communications
General Description
The MAX44211 is a low-distortion line driver customized
for powerline communication (PLC) applications where
high output current is needed to drive the isolation and
coupling transformer under varying load conditions. The
MAX44211 can be switched to implement all world stan-
dards, trading off improved linearity for increased quies-
cent current. The MAX44211 delivers a high 1.5A linear
output current and provides peak-to-peak differential
voltage swing of up to 36V. The MAX44211 features very
low intermodulation and harmonic distortion ensuring they
meet worldwide PLC standards.
The MAX44211 features advanced diagnostics for tem-
perature and output current monitoring. There are high
temperature warning and over temperature shutdown
functions. There is also a programmable current limit. The
status of these diagnostics are indicated via two open-
drain status outputs.
The MAX44211 is designed to interface to powerlines that
have wide ranging and variable loads and drive signals
within the 9kHz to 500kHz frequency band. This device
operates from a single supply and is available in a 4mm x
4mm, 20-pin TQFN package.
The MAX44211 device is specified for operation from
-40°C to +85°C.
Applications
●● Powerline Communications
●● Smart Meters
●● Lighting
●● Solar
Ordering Information appears at end of data sheet.
Benefits and Features
●● Meets Stringent ARIB, FCC, and CENELEC Linearity
Specifications for Out-of-Band Emissions
• Output Drives Current Linearly Up to 1.5A Peak
Into a Reactive Load for PLC Applications
●● Output Voltage Swings to Within 0.5V of AVDD or
AGND (36V_P-P Differential) for Widest Dynamic
Range
●● Wide Power-Supply Range Addresses Multiple
Standards:
• +8V to +20V for Analog Supply
• +2.7V to +5.5V for Digital Supply
●● Programmable Output Current Limit via External
Resistor Provides Flexibility
●● Programmable Gain (6x, 12x, 15x, or 18x) via Gain
Inputs Provides Multistandard Usage
●● Status Logic Outputs Provide Improved Diagnostics
• Overtemperature Shutdown Active
• High-Temperature Warning Active
• Overcurrent Active
• Normal Operation
Functional Diagram
MAX44211
10kΩ
IN+
VGA
IN-
10kΩ
DVDD
G0
G1
DGND
GAIN
CONTROL
60kΩ
10kΩ
PA
10kΩ
60kΩ
PA : POWER AMPLIFIER
THERMAL
AND
OVERCURRENT
MONITOR
AVDD
MODE
OUT+
OUT-
TXEN
ILSET
AGND
STATUS0
STATUS1
19-7667; Rev 0; 6/15