33932 Datasheet, PDF (3/21 Pages) Freescale Semiconductor, Inc – 5.0 A Throttle Control H-Bridge

PIN CONNECTIONS
PIN CONNECTIONS
AGNDA
Tab
D1
1
FBA
2
EN/D2
3
VPWRA
4
VPWRA
5
VPWRA
6
OUT1
7
OUT1
8
OUT1
9
PGNDA
10
PGNDA
11
PGNDB
12
PGNDB
13
OUT4
14
OUT4
15
OUT4
16
VPWRB
17
VPWRB
18
CCPB
19
IN4
20
IN3
21
SFB
22
H-BRIDGE A
H-BRIDGE B
Tab
AGNDB
44
SFA
43
IN1
42
IN2
41
CCPA
40
VPWRA
39
VPWRA
38
OUT2
37
OUT2
36
OUT2
35
PGNDA
34
PGNDA
33
PGNDB
32
PGNDB
31
OUT3
30
OUT3
29
OUT3
28
VPWRB
27
VPWRB
26
VPWRB
25
EN/D4
24
FBB
23
D3
Figure 3. 33932 Pin Connections
Table 1. 33932 Pin Definitions
A functional description of each pin can be found in the Functional Description section beginning on page 11.
Pin
Pin
Pin Name _Function
Formal Name
Definition
1
2
3
4-6,39,40
7-9
10,11,34,35
D1
FBA
EN/D2
VPWRA
VPWRB
OUT1
PGNDA
Logic Input
Analog
Output
Logic Input
Disable Input 1
(Active High)
Feedback
Enable Input
Power Input Positive Power
Supply
Power
Output
H-Bridge Output 1
Power
Ground
Power Ground
When D1 is logic HIGH, both OUT1 and OUT2 are tri-stated. Schmitt trigger
input with ~80 μA source so default condition = disabled.
H-Bridge A load current feedback output provides ground referenced 0.24% of
the high side output current. (Tie to GND through a resistor if not used.)
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.)
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 high side MOSFET1 and drain of low side MOSFET1.
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.
12,13,32,33 PGNDB
Power
Ground
Power Ground
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.
Analog Integrated Circuit Device Data
Freescale Semiconductor
33932
3