AZ494B_05 Datasheet, PDF (7/12 Pages) BCD Semiconductor Manufacturing Limited – PULSE-WIDTH-MODULATION CONTROL CIRCUITS

PULSE-WIDTH-MODULATION CONTROL CIRCUITS
Parametr Measurement information
V_CC = 15V
12
Test
Inputs
4
3
12KΩ ₆
5
0.01µF ¹
2
16
15
V_CC
DTC
FEEDBACK
RT
CT
1IN+
1IN-
2IN+
2IN-
8
C1
E1 ⁹
11
C2
10
E2
50KΩ
13 _OUTPUT
14
REF
CTRL
GND
7
150Ω
4W
150Ω
4W
Output 1
Output 2
Data Sheet
AZ494B/D
Test Circuit
Voltage
V_CC
at C1
0V
Voltage
V_CC
at C2
0V
Voltage
at CT
DTC
Threshold Voltage
0V
FEEDBACK
0.7V
Duty Cycle
Threshold Voltage
0%
0%
MAX
Voltage Waveforms
Figure 4. Operational Test Circuit and Waveforms
Jun. 2005 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
7