Pwm Controller - BenQ G2220HD Product Service Manual

#5 PWM Controller

The TEA1530(A)T can be used in Fixed Frequency converter designs for low voltage, high
current applications. At low power (standby) levels, the system operates in cycle skipping
mode which minimizes the switching losses during standby.
The proprietary high voltage BCD800 process makes direct start-up possible from the
rectified universal mains voltage in an effective and green way. A second low voltage
BICMOS IC is used for accurate, high speed protection functions and control.
The TEA1530(A)T enables highly efficient and reliable supplies to be designed easily.
1
C613
ZD601 1U 25V 2
TZMC20
3
4
C612 R620
1U K 100K F
R617
10K F
90V58W Protection
264V63W Protection
C610
R618
3300P J
4.7K
E1
R605
10K
IC601 TEA1530AP
• 8
E6
Vcc Drain
C608
2200P K
7
Gnd HVS
6
Protect Driv er
PC611
5
Ctrl Sense
C611
100PF 50V J
- 59 -
C605
+
150U 450V
<Spec>
D602
R606 10
K A
UF4007-LF
C606
+
47U 50V
R612 STP7NK80ZFP
10 J
R613 10K
C614
R614
1K F
0.22 U
R616 511K F
A K
ZD602
TZMC5V1
Fig. 6
L605
E2
Z45/100MHZ
R607
C607
68K
0.001U J
E3
D601
UF4007-LF
E4
L604
Z45/100MHZ
E5
L603
R611 10
Z45/100MHZ
Q601
C616
G
100P K
R622 R615
0.22
10K F
K A
D605
LL4148
T601
1 12
2
3 10
11
5
4
6 8
600UH