SA306 Datasheet, PDF (5/14 Pages) Cirrus Logic – 3 Phase Switching Amplifier

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Figure 3. External Connections
OUT C
53
NC
54
PGND C
55
PGND C
56
PGND C
57
HS
58
SA306
32
NC
31
V_S A
30
V_S A
29
V_S A
28
NC
27
HS
HS
59
NC
60
Cb
61
NC
62
Ct
63
NC
64
26
HS
25
TEMP
24
NC
23
DIS2
22
NC
21
Ia
Table 1. Pin Descriptions
Pin #
Pin Name
Signal Type
29,30,31
51,52,53
V_S (phase A)
OUT C
Power
Power Output
55,56,57
PGND (phase C) Power
3
SC
Logic Output
61
Cb
Logic Input
63
Ct
Logic Input
1
Ic
Analog Output
5
Ib
Analog Output
7
I_LIM/DIS1
Logic Input/Output
Simplified Pin Description
High Voltage Supply (8.5-60V) supplies phase A only
Half Bridge C Power Output
High Current GND Return Path for Power Output C
Indication of a short of an output to supply, GND or another phase
Logic high commands C phase lower FET to turn on
Logic high commands C phase upper FET to turn on
Phase C current sense output
Phase B current sense output
As an output, logic high indicates cycle-by-cycle current limit, and
logic low indicates normal operation. As an input, logic high places
all outputs in a high impedance state and logic low disables the
cycle-by-cycle current limit function.
SA306U