Datasheet
L6229
4/25
Figure 3. Pin Connections (Top view)
(5) The slug is internally connected to pins 1, 18, 19 and 36 (GND pins).
Table 5. Pin Description
PACKAGE
Name Type Function
SO24/
PowerDIP24
PowerSO36
PIN # PIN #
110H
1
Sensor Input Single Ended Hall Effect Sensor Input 1.
2 11 DIAG Open Drain
Output
Overcurrent Detection and Thermal Protection pin. An
internal open drain transistor pulls to GND when an
overcurrent on one of the High Side MOSFETs is
detected or during Thermal Protection.
3 12 SENSE
A
Power Supply Half Bridge 1 and Half Bridge 2 Source Pin. This pin
must be connected together with pin SENSE
B
to
Power Ground through a sensing power resistor.
4 13 RCOFF RC Pin RC Network Pin. A parallel RC network connected
between this pin and ground sets the Current
Controller OFF-Time.
515OUT
1
Power Output Output 1
6, 7,
18, 19
1, 18,
19, 36
GND GND Ground terminals. On PowerDIP24 and SO24
packages, these pins are also used for heat
dissipation toward the PCB. On PowerSO36 package
the slug is connected on these pins.
8 22 TACHO Open Drain
Output
Frequency-to-Voltage open drain output. Every pulse
from pin H
1
is shaped as a fixed and adjustable length
pulse.
9 24 RCPULSE RC Pin RC Network Pin. A parallel RC network connected
between this pin and ground sets the duration of the
Monostable Pulse used for the Frequency-to-Voltage
converter.
GND
GND
TACHO
RCPULSE
SENSE
B
EN
FWD/REV
1
3
2
4
5
6
7
8
9
VREF
VBOOT
BRAKE
OUT
3
VS
B
GND
GND19
18
17
16
15
13
14
D01IN1194A
10
11
12
24
23
22
21
20
H
1
DIAG
SENSE
A
RCOFF
OUT
1
VS
A
OUT
2
VCP
H
2
H
3
GND
N.C.
N.C.
VS
A
RCOFF
OUT
1
N.C.
N.C.
N.C.
N.C.
N.C.
TACHO
RCPULSE
N.C.
VS
B
N.C.
N.C.
GND
1
3
2
4
13
14
15
16
17
34
33
24
23
22
20
21
19
35
18
36
GND
GND
D01IN1195A
H
1
SENSE
A
DIAG
SENSE
B
EN
FWD/REV
10
11
12
27
26
25
H
3
VREF9
28
OUT
2
H
2
VCP
BRAKE
OUT
3
VBOOT
5
7
8
32
30
29
N.C.
N.C.6
31
PowerSO36
(5)
PowerDIP24/SO24