STV5180
CONTROL I.C. FOR SWITCH MODE POWER SUPPLY
AND FOR LINE DEFLECTION
August 1994
ADVANCE DATA
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Csfs
Pouts
GND
Poutd
Csfd
RTd
CTd
V
CC
RTs
CTs
Eout
E-
SDA
SCL
STBY
HDR
SOFT START SMPS
VOLTAGE SUPPLY
PWM OUTPUT SMPS
GROUND
HORIZONTAL DRIVE PULSE
DEFLECTION SOFT START
DEFLECTION OSCILLATOR RESISTOR
DELECTION OSCILLATOR CAPACITANCE
SMPS OSCILLATOR RESISTOR
SMPS OSCILLATOR CAPACITANCE
OUTPUT ERROR AMPLIFIER
INPUT ERROE AMPLIFIER
I C BUS INPUT
2
I C BUS INPUT
2
TEST POINT
LINE SYNC PULSE FROM
SIGNAL /DEFLECTION PROCESSOR
5180-01.EPS
PIN CONNECTIONS
SO16 WIDE
(Plastic Micropackage)
ORDER CODE : STV5180
SECONDARY SIDE SWITCH MODE POWER
SUPPLY
.
INTERNAL PWM SIGNAL GENERATOR
.
SYNCHRONIZATION OR FREE RUNNING
MODES
.
SOFT START
.
REFERENCE VOLTAGE ADJUSTABLE BY
I
2
C BUS
.
WIDE FREQUENCY RANGE
.
MINIMUM OUTPUT PULSE WIDTH 2.4
s
.
STAND-BY MODE, COMMANDED STBY IN-
PUT OR I
2
C BUS
HORIZONTAL DEFLECTION CONTROLLER
.
INTERNAL PWM SIGNAL GENERATOR
.
SYNCHRONIZATION OR FREE RUNNING
MODES
.
SOFT START
.
PERMANENT CONTROL OF DUTY CYCLE
TO SAFE THE POWER STAGE
.
CHOICE (BY I
2
C BUS) OF THE ACTIVE
EDGE OF THE INPUT SIGNAL
.
ON/OFF
FUNCTION
COMMANDED
BY
I
2
C BUS
.
STAND-BY MODE COMMANDED BY STBY
INPUT AND BY I
2
C BUS
DESCRIPTION
The STV5180 is designed to work in the secondary
part of an off-line SMPS, sending pulses to the
slaved TEA2260/61 which are located on the pri-
mary side of the main transformer. Dedicated for
TV set applications, it contains also a line deflection
control circuit to insure a high level of safety for the
power deflection stage. These two functions are
commanded by I
2
C bus.
1/5
STV5180
2
3
4
5
6
7
8
9
10
16
11
12
13
14
15
SMPS
OSCILLATOR
DEFLECTION
OSCILLATOR
D/A
8-BIT
REGISTER
I BUS
INTERFACE
Internal
Supply
Trigger Slope Selection
Deflection ON/OFF
V Aux
REF
V
2
PWM
CC
V
1
PWM
STBY
SDA
SCL
H-DRIVE
CTd
RTd
Cfsd GND
Poutd
E-
Eout
Pouts
Csfs
RTs
CTs
Error Amp
5180-02.EPS
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
6
V
T
j
Operating Junction Temperature
150
C
T
stg
Storage Temperature Range
0, + 70
C
5180-01.TBL
THERMAL DATA
Symbol
Parameter
Value
Unit
R
th (j-a)
Junction-ambient Thermal Resistance
75
C/W
5180-02.TBL
RECOMMANDED OPERATING CONDITIONS
Symbol
Parameter
Min.
Typ.
Max.
Unit
V
CC
Power Supply Voltage
4.5
5
V
RT
Timing Resistor
82
k
CT
Timing Capacitor
1
nF
Fosc
Oscillator Frequency
16
kHz
T
amb
Operating Ambient Temperature
0
70
C
I
SOURCE
Output Current (Pin 3 and Pin 5) V
OUT
= 2.5V
30
70
mA
5180-03.TBL
STV5180
2/5
ELECTRICAL CHARACTERISTICS (T
A
= 25
o
C, V
CC
= 5V)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
SMPS OSCILLATOR
T
1
Free Period
RT = 82k
;
CT = 1nF
57
60
63.5
S
T
ONmin
Minimum Duty Cycle
RT = 82k
;
CT = 1nF
1.8
2.4
3
S
D
ONmax
Maximum Duty Cycle
RT = 82k
;
CT = 1nF
70
75
80
%
W
SPOS
Positive Triggering Window
T
trig
+
-
T
0
T
0
RT = 82k
;
CT = 1nF
33
%
W
SNEG
Negative Triggering Window
T
0
-
T
trig
-
T
0
RT = 82k
;
CT = 1nF
20
%
DEFLECTION OSCILLATOR
T
2
Free Period
RT = 82k
;
CT = 1nF
57
60
63.5
S
D
ON
Duty Cycle
RT = 82k
;
CT = 1nF
50
%
T
OFF
RT = 82k
;
CT = 1nF
30
S
W
DPOS
Positive Triggering Window
T
trig
+
-
T
0
T
0
RT = 82k
;
CT = 1nF
20
%
W
DNEG
Negative Triggering Window
T
0
-
T
trig
-
T
0
RT = 82k
;
CT = 1nF
0
%
INTERNAL VOLTAGE REFERENCE
V
REFmin
Minimum Voltage Reference
DAC set to 00 Hex
1.76
1.84
1.92
V
V
REFmax
Maximum Voltage Reference
DAC set to 3F Hex
2.08
2.16
2.24
V
POWER OUTPUT STAGES
V
POUTH
Output High Level (Pin 3 and 5)
I
load
= 1mA
4
4.5
V
V
POUTL
Output Low Level (Pin 3 and 5)
I
load
= -1mA
0.5
1
V
I
SINK
Sink Current (Pin 3 and 5)
V
POUT
= 2.5V
30
70
mA
I
SOURCE
Source Current (Pin 3 and 5)
V
POUT
= 2.5V
30
70
mA
5180-04.TBL
DAC
6 bits DAC ; power on default value : 00 Hex.
STV5180
3/5
SOFTWARE SPECIFICATION
I
2
C Bus Address
8C Hex.
Overview
The data consists of two bytes with the following possible values :
Byte n
Bit n
Function
1
d0 to d5
DAC value for output voltage adjustment ; d0 = LSB ; Default = 00
d6 to d7
Subaddress 0 ; d6 = d7 = 0
2
d0
Mode switching ; Stand-by = 0 ; ON = 1 ; Default = 1
d1
H-Deflection ON/OFF ; OFF = 0 ; ON = 1 ; Default = 1
d2
Polarity H-Drive ; Chroma4 = 1 ; Philips = 0 ; Default = 0
d3 to d5
Unused
d6 to d7
Subaddress 1 ; d6 = 1 ; d7 = 0
Command Codes
1
Normal Operating
: 43 Hex
2
Stand-by
: 40 Hex
3
Power Stand-by
: 41 Hex
4
Triggering Slope Positive
: 43 Hex
5
Triggering Slope Negative
: 47 Hex
6
Output Voltage Adjustment : 00 to 3F Hex
STV5180
4/5
b1
c1
s
F
C
G
L
E
a1
a2
A
e
D
M
e3
b
16
9
1
8
PM-SO16N.EPS
PACKAGE MECHANICAL DATA
16 PINS - PLASTIC MICROPACKAGE
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility
for the consequences of use of such infor mationnor for any infringement of patents or other rights of third parties which may result
from its use. No licence is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics.
Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all
information previously supplied. SGS-THOMSON Microelectronics produc ts are not authorized for use as critical components in life
support devices or systems without express written approval of SGS-THOMSON Microelectronics.
1994 SGS-THOMSON Microelectronics - All Rights Reserved
Purchase of I
2
C Components of SGS-THOMSON Microelectronics, conveys a license under the Philips
I
2
C Patent. Rights to use these components in a I
2
C system, is granted provided that the system conforms to
the I
2
C Standard Specifications as defined by Philips.
SGS-THOMSON Microelectronics GROUP OF COMPANIES
Australia - Brazil - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco
The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
Dimensions
Millimeters
Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
A
1.75
0.069
a1
0.1
0.2
0.004
0.008
a2
1.6
0.063
b
0.35
0.46
0.014
0.018
b1
0.19
0.25
0.007
0.010
C
0.5
0.020
c1
45
o
(typ.)
D
9.8
10
0.386
0.394
E
5.8
6.2
0.228
0.244
e
1.27
0.050
e3
8.89
0.350
F
3.8
4.0
0.150
0.157
G
4.6
5.3
0.181
0.209
L
0.5
1.27
0.020
0.050
M
0.62
0.024
S
8
o
(max.)
SO16N.TBL
STV5180
5/5
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