TEA2028B 데이터 시트보기 (PDF) - STMicroelectronics
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TEA2028B Datasheet PDF : 9 Pages
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TEA2028B
ELECTRICAL OPERATING CHARACTERISTICS (continued)
Symbol
Parameter
Min. Typ. Max. Unit
PHASE COMPARATOR ϕ 2 (Pin 16)
I16
Charging Current
I16
Delay Between the Edges of ϕ 1 and ϕ 2 (fVCO = 500kHz)
0.4
0.6
0.8
mA
2.3
µs
LINE OUTPUT (open collector, Fvco = 500KHz) (Pin 10)
Output Voltage (I10max = 20mA)
t10
Output Pulse Duration (when fly-back pulse is with in time t10)
(with C (pin 1) = 3.3nF)
∆t
ϕ 2 Phase Range
1
1.5
V
27.5
29
30.5
µs
15
16
19
µs
FRAME LOGIC
Free Running Period (with mute signal)
Search Window
50 Hz Window
60 Hz Window
VCR Mode Window
315
Line
247
361 Line
309
315 Line
247
276 Line
247
361 Line
FRAME SAW-TOOTH GENERATOR (Pins 3-5)
I5(60)
Vs
Internal Current Generator (60Hz on)
Discharging Current
Starting Level (0 < Is < 10mA)
12
14
16
µA
18
55
mA
1
1.26 1.4
V
FRAME BLANKING SAFETY INPUT (Pin 2)
Threshold Voltage (negative going pulse)
1.15 1.26 1.37
V
FRAME BLANKING OUTPUT (open collector) - (Pin 4)
Output Saturation Voltage (I4 = 5mA)
Output Current (low level)
Blanking Time
0.4
V
10
mA
21
Line
SMPS CONTROL INPUT (Pin 9)
I9
Input Current (V9 = Vref 14)
2
µA
SMPS OUTPUT (Pin 7) - No relation between end of SMPS pulse (pin 7) and leading edge of line fly back (pin 12)
V7
Output Voltage (0 < I7 < 20mA)
t7
tON max (fVCO = 500kHz)
Output Phase Range
SAFETY INPUT (Pin 28)
10
V
26
30
31
µs
0
tON max
V28 Threshold Voltage (V28 = Vref 14)
Input Current (if V28 < Vref 14 then SMPS and line are switched off
during the next line retrace)
1.20 1.26 1.5
V
3
µA
Switch-on, Switch-off Processing (Pin 15)
Ich15
Ich15
Idis15
Charging Current (tc = 4µs, T = 64µs)
Ratio charging/discharging
70
130
µA
0.8
1
1.2
µA
STARTING SUPPLY VOLTAGE (Pin 8)
VCC
VCC
VCC
VHyst
SMPS* and Line Starting (Pins 7 and 10)
SMPS Stopping During Line Retrace
Frame and Line Stopping
Hysteresis between Switching-on and Switching-off Level
5.25
6.5
V
5.25
6.5
V
5.25
6.5
V
450
mV
CURRENT REFERENCE (Pin 14)
Vref 14 Voltage Reference (R14 = 3.32KΩ ± 1%)
* Progressive Starting by Decreasing V15
1.2 1.26 1.35
V
6/9
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