Datasheet
Pin connections L6234
4/16 Doc ID 1107 Rev 10
2 Pin connections
Figure 2. Pin connections
Table 2. Pin functions
PowerDIP PowerSO20 Name Function
1
20
10
6
5
15
OUT 1
OUT 2
OUT 3
Output of the channels 1/2/3.
2
19
9
7
4
14
IN 1
IN 2
IN 3
Logic input of channels 1/2/3. A logic HIGH level (when the
corresponding EN pin is HIGH) switches ON the upper DMOS
Power Transistor, while a logic LOW switches ON the
corresponding low side DMOS Power.
3
18
8
8
3
13
EN 1
EN 2
EN 3
Enable of the channels 1/2/3. A logic LOW level on this pin
switches off both power DMOS of the related channel.
4,7 9, 12
Vs Power supply voltage.
14 19 SENSE2
A sense resistor connected to this pin provides feedback for
motor current control for the bridge 3.
17 2 SENSE1
A sense resistor connected to this pin provides feedback for
motor current control for the bridges 1 and 2.
11 16 VREF
Internal voltage reference. A capacitor connected from this pin
to GND increases the stability of the Power DMOS drive
circuit.
12 17 VCP
Bootstrap oscillator. Oscillator output for the external charge
pump.
13 18 VBOOT
Overvoltage input to drive the upper DMOS
5,6
15,16
1,10
11,20
GND
Common ground terminal. In PowerDIP and SO packages
these pins are used to dissipate the heat forward the PCB.
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