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Product Detailed Parameters
- Description：IC SMPS FLYBACK CTLR 6TSOP
- Series：GreenChip™
- Mfr：NXP USA Inc.
- Package：Tape & Reel (TR)
- Output Isolation：Isolated
- Internal Switch(s)：No
- Voltage - Breakdown：-
- Topology：Flyback
- Voltage - Start Up：21.5 V
- Voltage - Supply (Vcc/Vdd)：12V ~ 30V
- Duty Cycle：80%
- Frequency - Switching：65kHz
- Fault Protection：Current Limiting, Over Power, Over Temperature, Over Voltage
- Control Features：Frequency Control, Soft Start
- Operating Temperature：-40°C ~ 150°C (TJ)
- Package / Case：SC-74, SOT-457
- Supplier Device Package：SC-74
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
- Power (Watts)：75 W
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Overview
The TEA1731LTS/1Z is a GreenChip SMPS control IC designed for flyback topologies. It operates in peak current and frequency control mode with integrated slope compensation for continuous conduction mode. The device features frequency jitter to reduce electromagnetic interference and implements frequency reduction at low power levels to maintain high efficiency across the total load range. It supports input voltages from 12 V to 30 V, offers overpower protection (OPP), and includes overvoltage protection on VCC. The typical supply current during normal operation is 0.58 mA without load, while startup current is typically 10 µA.
Feature Summary
- Integrated frequency jitter mechanism to minimize electromagnetic interference emissions
- Dynamic frequency reduction strategy to sustain high efficiency at medium and low output power levels
- Built-in overpower protection with internal time-out functionality
- Low supply current consumption during both start-up and normal operational states
Applications
- Flyback switched-mode power supplies
- Low-cost AC-DC converter designs
- Power requirements up to 75 W
- Applications requiring reduced electromagnetic interference
Procurement Notes
Verify the specific suffix and package variant against official NXP documentation to ensure compatibility with design requirements. Confirm RoHS compliance status and environmental declarations prior to integration. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability. Ensure that ordering quantities align with standard packaging configurations provided by the supplier.
Selection Notes
Select this component for flyback applications requiring cost-effective solutions with high efficiency across varying loads. The integrated slope compensation supports continuous conduction mode operation. Consider the wide input voltage range and low standby current for energy-efficient designs. Verify thermal performance within the specified operating temperature range of -40 C to +150 C.
Part Context
The TEA1731LTS/1Z belongs to the TEA173X series of GreenChip SMPS control ICs manufactured by NXP Semiconductors. This series targets low-cost, highly efficient, and reliable power supply designs. The controller simplifies implementation by minimizing external component count while providing robust protection features suitable for general-purpose power conversion applications.
Replacement Considerations
Consult official NXP substitution guides for verified alternative part numbers. Ensure functional equivalence regarding topology support, pinout compatibility, and electrical specifications when considering replacements.
