STARplug SMPS controllers with integrated power switch for general purpose applications up to 30W
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TEA152x SMPS ICs for low-power systems Rev. 04 — 14 September 2010 Product data sheet 1. General description The TEA152x family STARplug is a Switched Mode Power Supply (SMPS) controller IC that operates directly from the rectified universal mains. It is implemented in the high-voltage EZ-HV SOI process, combined with a low-voltage Bipolar Complementary Metal-Oxide Semiconductor (BiCMOS) process. The device includes a high-voltage power switch and a circuit for start-up directly from the rectified mains voltage. A dedicated circuit for valley switching is built in, which makes a very efficient slim-line electronic power-plug concept possible. In its most basic version of application, the TEA152x family acts as a voltage source. Here, no additional secondary electronics are required. A combined voltage and current source can be realized with minimum costs for external components. Implementation of the TEA152x family renders an efficient and low cost power supply system. 2. Features and benefits Designed for general purpose supplies up to 30 W Integrated power switch: TEA1520x: 48 Ω; 650 V TEA1521x: 24 Ω; 650 V TEA1522x: 12 Ω; 650 V TEA1523P: 6.5 Ω; 650 V Operates from universal AC mains supplies (80 V to 276 V) Adjustable frequency for flexible design RC oscillator for load insensitive regulation loop constant Valley switching for minimum switch-on loss Frequency reduction at low power output makes low standby power possible (< 100 mW) Adjustable overcurrent protection Undervoltage protection Temperature protection Short-circuit winding protection Simple application with both primary and secondary (opto) feedback Available in DIP8 and SO14 packages

TEA152x NXP Semiconductors SMPS ICs for low-power systems 3. Applications Chargers Adapters Set-Top Box (STB) DVD CD(R) TV/monitor standby supplies PC peripherals Microcontroller supplies in home applications and small portable equipment, etc. 4. Quick reference data Table 1. Quick reference data Symbol Parameter Conditions Min Typ Max Unit Vdrain voltage on pin DRAIN Tj > 0 °C −0.4 - +650 V RDSon drain-source on-state resistance Tj = 25 °C - 48 55.2 Ω Tj = 100 °C - 68 78.2 Ω Tj = 25 °C - 24 27.6 Ω Tj = 100 °C - 34 39.1 Ω Tj = 25 °C - 12 13.8 Ω Tj = 100 °C - 17 19.6 Ω Tj = 25 °C - 6.5 7.5 Ω...

TEA152x NXP Semiconductors SMPS ICs for low-power systems 5. Ordering information Table 2. Ordering information Type number Package Name Description Version TEA1520P DIP8 plastic dual in-line package; 8 leads (300 mil) SOT97-1 TEA1521P DIP8 plastic dual in-line package; 8 leads (300 mil) SOT97-1 TEA1522P DIP8 plastic dual in-line package; 8 leads (300 mil) SOT97-1 TEA1523P DIP8 plastic dual in-line package; 8 leads (300 mil) SOT97-1 TEA1520T SO14 plastic small outline package; 14 leads; body width 3.9 mm SOT108-1 TEA1521T SO14 plastic small outline package; 14 leads; body width 3.9 mm...

TEA152x NXP Semiconductors SMPS ICs for low-power systems 7. Pinning information 7.1 Pinning VCC GND 8 2 7 RC 6 REG 4 4 5 6 REG AUX 12 n.c. RC SOURCE 5 3 3 GND n.c. TEA152xP 13 n.c. GND DRAIN 2 GND 1 14 DRAIN GND VCC 1 7 TEA152xT 001aae137 Fig 2. 11 SOURCE 10 GND 9 GND 8 AUX 001aae138 Pin configuration DIP8 Fig 3. Pin configuration SO14 7.2 Pin description Table 3. Symbol Pin description Pin Description DIP8 SO14 VCC 1 1 supply voltage GND 2 2, 3, 4, 5, 9, 10 ground RC 3 6 frequency setting REG 4 7 regulation input AUX 5 8 input for voltage from the auxiliary winding for timing...

TEA152x NXP Semiconductors SMPS ICs for low-power systems components RRC and CRC. This mode is called Pulse Width Modulation (PWM). Furthermore, a primary stroke is started only in a valley of the secondary ringing. This valley switching principle minimizes capacitive switch-on losses. 8.1 Start-up and Underoltage lockout Initially, the IC is self supplying from the rectified mains voltage. The IC starts switching as soon as the voltage on pin VCC passes the VCC(startup) level. The supply is taken over by the auxiliary winding of the transformer as soon as VCC is high enough and the supply...

TEA152x NXP Semiconductors SMPS ICs for low-power systems As soon as the oscillator voltage is high again and the secondary stroke has ended, the circuit waits for a low drain voltage before starting a new primary stroke. Figure 4 shows the drain voltage together with the valley signal, the signal indicating the secondary stroke and the RC voltage. The primary stroke starts some time before the actual valley at low ringing frequencies, and some time after the actual valley at high ringing frequencies. primary stroke secondary stroke secondary ringing drain valley secondary stroke A RC...

TEA152x NXP Semiconductors SMPS ICs for low-power systems mgt424 40 phase (deg) 20 0 −20 −40 0 200 400 600 800 f (kHz) Fig 5. Typical phase of drain ringing at switch-on (at N × Vo = 80 V) 8.5 Demagnetization The system operates in discontinuous conduction mode all the time. As long as the secondary stroke has not ended, the oscillator will not start a new primary stroke. During the first tsuppr seconds, demagnetization recognition is suppressed. This suppression may be necessary in applications where the transformer has a large leakage inductance and at low output voltages. 8.6 Minimum and...

TEA152x NXP Semiconductors SMPS ICs for low-power systems 8.10 OverVoltage Protection (OVP) Overvoltage protection can be achieved in the application by pulling pin REG above its normal operation level. The current primary stroke is terminated immediately, and no new primary stroke is started until the voltage on pin REG drops to its normal operation level. Pin REG has an internal clamp. The current feed into this pin must be limited. 8.11 Output characteristics of complete power-plug Typical characteristics: • Output power: A wide range of output power levels can be handled by choosing the...

TEA152x NXP Semiconductors SMPS ICs for low-power systems 9. Limiting values Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). All voltages are measured with respect to ground; positive currents flow into the device; pins VCC and RC are not allowed to be current driven and pins REG and AUX are not allowed to be voltage driven. Symbol Parameter Conditions Min Max Unit VCC supply voltage continuous −0.4 +40 V VRC voltage on pin RC −0.4 +3 V Vsource voltage on pin SOURCE DMOS power transistor −0.4 +5 V Vdrain voltage on pin DRAIN Tj > 0 °C −0.4 +650 V...