MC34932 Datasheet, PDF (3/24 Pages) Freescale Semiconductor, Inc – Dual 5.0 A H-Bridge

PIN CONNECTIONS
PIN CONNECTIONS
VPWRA
1
NC
2
D1
3
FBA
4
EN/D2
5
NC
6
NC
7
NC
8
VPWRA
9
OUT1
10
OUT1
11
PGNDA
12
PGNDA
13
NC
14
PGNDB
15
PGNDB
16
OUT4
17
OUT4
18
VPWRB
19
CCPB
20
NC
21
NC
22
IN4
23
IN3
24
SFB
25
VPWRB
26
AGNDB
27
54
AGNDA
53
VPWRA
52
SFA
51
IN1
50
IN2
49
NC
48
NC
47
CCPA
46
VPWRA
45
OUT2
44
OUT2
43
PGNDA
42
PGNDA
41
NC
40
PGNDB
39
PGNDB
38
OUT3
37
OUT3
36
VPWRB
35
NC
34
NC
33
NC
32
EN/D4
31
FBB
30
D3
29
NC
28
VPWRB
54 SOICW-EP
Transparent Top View
Figure 3. 34932 Pin Connections
A functional description of each pin can be found in the Functional Description section beginning on Functional Description.
Table 1. 34932 Pin Definitions
Pin
Number
Pin
Pin Name _Function
Formal Name
Definition
3
D1
Logic Input Disable Input 1 ^{When D1 is logic HIGH, both OUT1 and OUT2 are tri-stated. Schmitt trigger}
(Active High)
input with ~80 μA source so default condition = disabled.
4
FBA
Analog
Feedback
H-Bridge A load current feedback output provides ground referenced 0.24% of
Output
the high side output current. (Tie to GND through a resistor if not used.)
5
EN/D2 Logic Input
Enable Input
When EN/D2 is logic HIGH, H-Bridge A is operational. When EN/D2 is logic
LOW, the H-Bridge A outputs are tri-stated and H-Bridge A is placed in Sleep
Mode. (logic input with ~ 80 μA sink so default condition = Sleep Mode.)
1, 9, 46, 53
10, 11
12, 13, 42,
43
VPWRA
OUT1
PGNDA
Power Input Positive Power
Supply
Power
Output
H-Bridge Output 1
Power
Ground
Power Ground
These pins must be connected together physically as close as possible and
directly soldered down to a wide, thick, low resistance supply plane on the PCB.
H-Bridge A source of HS1 and drain LS1.
High-current power ground pins must be connected together physically as close
as possible and directly soldered down to a wide, thick, low resistance ground
plane on the PCB. PGNDA should be connected to PGNDB with a low-
impedance path.
Analog Integrated Circuit Device Data
Freescale Semiconductor
34932
3