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TEA1623P; TEA1623PH
STARplugTM
Rev. 01 — 17 March 2004 Product data sheet
1. General description
The TEA1623P; TEA1623PH 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 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 TEA1623P; TEA1623PH 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 TEA1623P; TEA1623PH renders an efficient and low cost power supply system.
2. Features
s s s s s s s s s s s s s s Designed for general purpose supplies Integrated power switch: 6.5 Ω and 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 for low standby power: <100 mW Adjustable overcurrent protection Undervoltage protection Temperature protection Short winding protection Safe restart mode for system fault conditions Simple application with both primary and secondary (opto) feedback Available in 8-pin and 16-pin DIP package.
3. Applications
s Adapters s Set-Top Box (STB) s DVD s VCD s CD(R) s PC Silverbox standby SMPS.
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Philips Semiconductors
TEA1623P; TEA1623PH
STARplugTM
4. Quick reference data
Table 1: Symbol VCC(max) VDRAIN(max) IDRAIN RDSon Quick reference data Parameter maximum supply voltage maximum voltage at pin DRAIN supply current drawn from pin DRAIN drain-source on-state resistance Tj > 0 °C no auxiliary supply ISOURCE = −0.5 A Tj = 25 °C Tj = 100 °C fosc Tamb oscillator frequency range ambient temperature 10 −20 6.5 9.0 7.5 10.0 200 +85 Ω Ω kHz °C Conditions Min Typ 0.5 Max 40 650 Unit V V mA
5. Ordering information
Table 2: Ordering information Package Name TEA1623P TEA1623PH DIP8 DIP16 Description plastic dual in-line package; 8 leads (300 mil) plastic dual in-line package; 16 leads (300 mil); long body Version SOT97-1 SOT38-1 Type number
9397 750 12579
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 01 — 17 March 2004
2 of 18
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Philips Semiconductors
TEA1623P; TEA1623PH
STARplugTM
6. Block diagram
VCC
1
SUPPLY
8
DRAIN
VALLEY
TEA1623P
GND
2
LOGIC 100 mV
7
n.c.
PWM stop RC 3 OSCILLATOR THERMAL SHUTDOWN PROTECTION LOGIC POWER-UP RESET
1.8 U
6
SOURCE
low frequency
f
blank overcurrent
REG
4
2.5 V 10x short winding 0.75 V
0.5 V
5
AUX
col011
Fig 1. Block diagram of TEA1623P.
9397 750 12579
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 01 — 17 March 2004
3 of 18
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Philips Semiconductors
TEA1623P; TEA1623PH
STARplugTM
VCC
3
SUPPLY
14 1, 2, 7, 9, 10, 13, 15, 16
DRAIN
VALLEY
TEA1623PH
n.c.
GND
4
LOGIC 100 mV
PWM stop RC 5 OSCILLATOR THERMAL SHUTDOWN PROTECTION LOGIC POWER-UP RESET
1.8 U
12
SOURCE
low frequency
f
blank overcurrent
REG
6
2.5 V 10x short winding
0.5 V
11
AUX
SGND
8 0.75 V
col013
Fig 2. Block diagram of TEA1623PH.
7. Pinning information
7.1 Pinning
n.c. n.c. VCC GND RC REG 1 2 3 4
001aaa310
1 2 3 4 5 6 7 8
001aaa312
16 n.c. 15 n.c. 14 DRAIN
8
DRAIN n.c. SOURCE AUX
VCC GND RC REG n.c. SGND
TEA1623P
7 6 5
TEA1623PH
13 n.c. 12 SOURCE 11 AUX 10 n.c. 9 n.c.
a. DIP8 package. Fig 3. Pin configuration.
9397 750 12579
b. DIP16 package.
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 01 — 17 March 2004
4 of 18
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Philips Semiconductors
TEA1623P; TEA1623PH
STARplugTM
7.2 Pin description
Table 3: Symbol VCC GND RC REG SGND AUX Pin description Pin TEA1623P 1 2 3 4 5 TEA1623PH 3 4 5 6 8 11 12 supply voltage ground frequency setting regulation input signal ground; must preferably be connected to pin GND input for voltage from auxiliary winding for timing (demagnetization) source of internal MOS switch Description
SOURCE 6 n.c. DRAIN 7 8
1, 2, 7, 9, 10, not connected 13, 15, 16 14 drain of internal MOS switch; input for start-up current and valley sensing
8. Functional description
The TEA1623P; TEA1623PH is the heart of a compact flyback converter, with the IC placed at the primary side. The auxiliary winding of the transformer can be used for indirect feedback to control the isolated output. This additional winding also powers the IC. A more accurate control of the output voltage and/or current can be implemented with an additional secondary sensing circuit and op.