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TEA1506P; TEA1506AP; TEA1506T; TEA1506AT GreenChip™II SMPS control IC
Product specification 2003 Sep 09
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Philips Semiconductors
Product specification
GreenChip™II SMPS control IC
FEATURES Distinctive features • Universal mains supply operation (70 to 276 V AC) • High level of integration; giving a low external component count. Green features • Valley or zero voltage switching for minimum switching losses • Efficient quasi-resonant operation at high power levels • Frequency reduction at low power standby for improved system efficiency (≤3 W) • Cycle skipping mode at very low loads. Protection features • Safe restart mode for system fault conditions • Continuous mode protection by means of demagnetization detection (zero switch-on current) • Accurate and adjustable overvoltage protection (latched in TEA1506; safe restart in TEA1506A)
TEA1506P; TEA1506AP; TEA1506T; TEA1506AT
APPLICATIONS Besides typical application areas, i.e. TV and monitor supplies, the device can be used in adapters and chargers and all applications that demand an efficient and cost-effective solution up to 150 W. Unlike the other GreenChip™II control ICs, the TEA1506 has no internal high voltage start-up source and needs to be started by means of an external bleeder resistor.
1 2 3 4
8 7 6 5
TEA1506P TEA1506AP
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• Overtemperature protection
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• Undervoltage protection (foldback during overload) • Low and adjustable overcurrent protection trip level • Soft (re)start.
MDB504
Fig.1 Basic application diagram.
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Philips Semiconductors
Product specification
GreenChip™II SMPS control IC
GENERAL DESCRIPTION is the second generation of green The Switched Mode Power Supply (SMPS) control ICs. A high level of integration leads to a cost effective power supply with a low number of external components.
(1) GreenChip is a trademark of Koninklijke Philips Electronics N.V.
TEA1506P; TEA1506AP; TEA1506T; TEA1506AT
The special built-in green functions allow the efficiency to be optimum at all power levels. This holds for quasi-resonant operation at high power levels, as well as fixed frequency operation with valley switching at medium power levels. At low power (standby) levels, the system operates at a reduced frequency and with valley detection. Highly efficient and reliable supplies can easily be designed using the GreenChip™II control IC.
GreenChip™(1)II
ORDERING INFORMATION PACKAGE TYPE NUMBER NAME TEA1506P TEA1506AP TEA1506T TEA1506AT SO14 plastic small outline package; 14 leads; body width 3.9 mm SOT108-1 DIP8 DESCRIPTION plastic dual in-line package; 8 leads (300 mil) VERSION SOT97-1
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2003 Sep 09 DataSheet4U.com
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BLOCK DIAGRAM
Philips Semiconductors
GreenChip™II SMPS control IC
VCC
1 (2)
SUPPLY MANAGEMENT
8 (14) Iprot(DEM)
DRAIN
internal supply 2 (3)
UVLO start
VALLEY
clamp
GND
VOLTAGE CONTROLLED OSCILLATOR
4 LOGIC 100 mV (7)
DEM
FREQUENCY CONTROL
UP/DOWN COUNTER
OVERVOLTAGE PROTECTION
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Iprot(CTRL) CTRL 3 (6) 3.8 V UVLO −1
LOGIC
DRIVER Iss LEB blank soft start S2
6 (11)
DRIVER
POWER-ON RESET
4
S
Q
0.5 V
R
Q
5 OCP S OVERTEMPERATURE PROTECTION VCC < 4.5 V or UVLO (TEA1506AT) Q (9)
Isense
TEA1506P; TEA1506AP; TEA1506T; TEA1506AT
R
Q
TEA1506P; TEA1506AP (TEA1506T; TEA1506 AT)
MAXIMUM ON-TIME PROTECTION
short winding
0.88 V OVERPOWER PROTECTION
MDB505
Product specification
Pin numbers in parenthesis represent the SO version.
Fig.2 Block diagram.
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Philips Semiconductors
Product specification
GreenChip™II SMPS control IC
PINNING PIN SYMBOL DIP8 VCC GND CTRL DEM Isense DRIVER HVS DRAIN n.c. 1 2 3 4 5 6 7 8 − SO14 2 3 6 7 9 11 12, 13 14 1, 4, 5, 8, 10 supply voltage ground control input
TEA1506P; TEA1506AP; TEA1506T; TEA1506AT
DESCRIPTION
input from auxiliary winding for demagnetization timing; overvoltage and overpower protection programmable current sense input gate driver output high voltage safety spacer; not connected drain of external MOS switch; input for valley sensing and initial internal supply not connected
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n.c. .