General Description
The MAX8520/MAX8521 are designed to drive thermo electric coolers (TECs) in space-constrained optical modules. Both devices deliver ±1.5A output current and control the TEC current to eliminate harmful current surges. On-chip FETs minimize external components and high switching frequency reduces the size of external components.

FEATUREs
♦ Circuit Footprint 0.31in2
♦ Low Profile Design
♦ On-Chip Power MOSFETs
♦ High-Efficiency Switch-Mode Design
♦ Ripple Cancellation for Low Noise
♦ Direct Current Control Prevents TEC Current Surges
♦ 5% Accurate Adjustable Heating/Cooling Current Limits
♦ 2% Accurate TEC Voltage Limit
♦ No Dead Zone or Hunting at Low Output Current
♦ ITEC Monitors TEC Current
♦ 1% Accurate Voltage Reference
♦ Switching Frequency up to 1MHz
♦ Synchronization (MAX8521)