Test circuit
1. ICC1, ICC2, ICC3
VCC
VHb+
VHc+
4.7 µF
16
15
14
13
12
11
10
9
VS
Lb
VCC GND GND Hb+
Hb−
Hc+
TA8492P
Lc
La
3ST GND GND Ha−
Ha+
Hc−
1
2
3
4
5
6
7
8
VHa+
• ICC1: Input VHa+, VHb+, VHc+ (6.01 V/5.99 V). VCC = 12 V/V3ST = GND
• ICC2: Input VHa+, VHb+, VHc+ (6.01 V/5.99 V). VCC = 18 V/V3ST = GND
• ICC3: Input VHa+, VHb+, VHc+ (6.01 V/5.99 V). VCC = 12 V/V3ST = VCC
2. VSAT (U)
12 V
12 V
VHb+
VHc+
V
4.7 µF
16
15
14
13
12
11
10
9
VS
Lb
VCC GND GND Hb+
Hb−
Hc+
Lc
La
3ST GND GND Ha−
Ha+
Hc−
1
2
3
4
5
6
7
8
VHa+
• VSAT (U): Input VHa+, VHb+, VHc+ (6.01 V/5.99 V), check that the output function is at High level,
then measure phases a, b, and c.
2001-02-01 6/11