L6227Q STMicroelectronics, L6227Q Datasheet - Page 19

• Manufacturer Part Number: L6227Q
• Description: IC DRIVER FULL BRDG PWM 32VFQFPN
• Manufacturer: STMicroelectronics
• Type: H Bridger

Specifications of L6227Q

• Input Type: Non-Inverting
• Number Of Outputs: 4
• On-state Resistance: 730 mOhm
• Current - Output / Channel: 1.4A
• Current - Peak Output: 2.8A
• Voltage - Supply: 8 V ~ 52 V
• Operating Temperature: -25°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 32-VFQFN, 32-VFQFPN
• Product: H-Bridge Drivers
• Rise Time: 250 ns
• Fall Time: 250 ns
• Supply Voltage (min): 8 V
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Bridge Type: Full Bridge
• Maximum Turn-on Delay Time: 1900 ns
• Minimum Operating Temperature: - 40 C
• Number Of Drivers: 2
• For Use With: 497-6817 - EVAL BOARD FOR L6227Q
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

L6227Q
5
Application information
A typical application using L6227Q is shown in
application are shown in
200 nF should be placed between the power pins (VS
L6227Q to improve the high frequency filtering on the power supply and reduce high
frequency transients generated by the switching. The capacitors connected from the EN
and EN
when an over current is detected (see overcurrent protection). The two current sensing
inputs (SENSE
length as short as possible in the layout. The sense resistors should be non-inductive
resistors to minimize the dI/dt transients across the resistor. To increase noise immunity,
unused logic pins (except EN
(low logic level) (see pin description). It is recommended to keep power ground and signal
ground separated on PCB.
Table 8.
B
inputs to ground set the shut down time for the bridge A and bridge B respectively
Component values for typical application
A
and SENSE
Component
R
R
C
C
C
SENSEA
SENSEB
C
C
R
R
BOOT
REFA
REFB
C
C
C
R
R
C
C
D
D
ENA
ENB
ENA
ENB
1
2
A
B
P
1
2
A
B
Table
B
A
) should be connected to the sensing resistors with a trace
and EN
8. A high quality ceramic capacitor in the range of 100 to
B
) are best connected to 5 V (high logic level) or GND
Figure
A
18. Typical component values for the
and VS
B
) and ground near the
1N4148
1N4148
100 nF
220 nF
100 kΩ
100 kΩ
100 µF
5.6 nF
5.6 nF
Value
10 nF
68 nF
68 nF
39 kΩ
39 kΩ
Application information
0.6 Ω
0.6 Ω
1 nF
1 nF
19/27
A