2003 Sep 09
2
Philips Semiconductors
Product specification
GreenChip
TM
II SMPS control IC
TEA1506P; TEA1506AP;
TEA1506T; TEA1506AT
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)
Short winding protection
Undervoltage protection (foldback during overload)
Overtemperature protection
Low and adjustable overcurrent protection trip level
Soft (re)start.
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
TM
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.
MDB504
TEA1506P
TEA1506AP
1
2
3
4
8
7
6
5
Fig.1 Basic application diagram.
2003 Sep 09
3
Philips Semiconductors
Product specification
GreenChip
TM
II SMPS control IC
TEA1506P; TEA1506AP;
TEA1506T; TEA1506AT
GENERAL DESCRIPTION
The GreenChip
TM
(1)
II is the second generation of green
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.
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
TM
II control IC.
(1) GreenChip is a trademark of Koninklijke Philips
Electronics N.V.
ORDERING INFORMATION
TYPE NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TEA1506P
DIP8
plastic dual in-line package; 8 leads (300 mil)
SOT97-1
TEA1506AP
TEA1506T
SO14
plastic small outline package; 14 leads; body width 3.9 mm
SOT108-1
TEA1506AT
2003
Sep
09
4
Philips Semiconductors
Product specification
GreenChip
TM
II SMPS control IC
TEA1506P; TEA1506AP;
TEA1506T
; TEA1506A
T
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BLOCK DIA
GRAM
k
, full pagewidth
SUPPLY
MANAGEMENT
internal
supply
UVLO
start
VCC
1
2
3
(2)
(3)
(6)
GND
CTRL
FREQUENCY
CONTROL
VOLTAGE
CONTROLLED
OSCILLATOR
LOGIC
LOGIC
OVER-
VOLTAGE
PROTECTION
OVERPOWER
PROTECTION
short
winding
soft
start
S2
OVER-
TEMPERATURE
PROTECTION
S
Q
R
UVLO
Q
MAXIMUM
ON-TIME
PROTECTION
POWER-ON
RESET
-
1
UP/DOWN
COUNTER
VALLEY
TEA1506P;
TEA1506AP
(TEA1506T;
TEA1506 AT)
100
mV
clamp
DRIVER
0.88 V
0.5 V
5
Isense
6
DRIVER
MDB505
4
DEM
8
(9)
(11)
(7)
(14)
DRAIN
OCP
LEB
blank
Iss
Iprot(CTRL)
S
Q
R
VCC < 4.5 V
or UVLO
(TEA1506AT)
Q
Iprot(DEM)
3.8 V
Fig.2 Block diagram.
Pin numbers in parenthesis represent the SO version.
2003 Sep 09
5
Philips Semiconductors
Product specification
GreenChip
TM
II SMPS control IC
TEA1506P; TEA1506AP;
TEA1506T; TEA1506AT
PINNING
SYMBOL
PIN
DESCRIPTION
DIP8
SO14
V
CC
1
2
supply voltage
GND
2
3
ground
CTRL
3
6
control input
DEM
4
7
input from auxiliary winding for demagnetization timing; overvoltage and
overpower protection
I
sense
5
9
programmable current sense input
DRIVER
6
11
gate driver output
HVS
7
12, 13
high voltage safety spacer; not connected
DRAIN
8
14
drain of external MOS switch; input for valley sensing and initial internal
supply
n.c.
-
1, 4, 5, 8,
10
not connected
handbook, halfpage
MDB506
TEA1506P
TEA1506AP
1
2
3
4
VCC
GND
CTRL
DEM
DRAIN
HVS
DRIVER
Isense
8
7
6
5
Fig.3 Pin configuration DIP8.
handbook, halfpage
TEA1506T
TEA1506AT
MDB507
1
2
3
4
5
6
7
n.c.
VCC
GND
n.c.
n.c.
CTRL
DEM
DRAIN
HVS
HVS
DRIVER
n.c.
Isense
n.c.
14
13
12
11
10
9
8
Fig.4 Pin configuration SO14.
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