NXP – TEA1833TS: GreenChip SMPS Control IC


The TEA1833TS is a low cost Switched Mode Power Supply (SMPS) controller IC designed for flyback topologies. The TEA1833TS operates in peak current
and frequency control mode. Frequency jitter has been implemented to reduce ElectroMagnetic Interference (EMI). Slope compensation is integrated for Continuous Conduction Mode (CCM) operation. The TEA1833TS features overpower protection (OPP) with up to 200% for a limited amount of time. Mains under-voltage protection (brownin/brownout), output over-voltage protection (OVP), and over-temperature protection (OTP) can be implemented using a minimal number of external components.

• 10.5V to 36V input voltage range
• Dedicated burst mode
• OPP including high/low line compensation
• Limitation of switching frequency at high mains
• 300mA source, 750mA sink drive capability
• Integrated OVP on the VCC pin
• 11μA typical supply current during start-up and restart
• Fixed switching frequency with frequency jitter to reduce EMI
• Integrated soft start
• Maximum duty cycle set at 90%