L6227N STMicroelectronics, L6227N Datasheet - Page 12

IC DRIVER FULL BRIDGE DUAL 24DIP

L6227N

Manufacturer Part Number
L6227N
Description
IC DRIVER FULL BRIDGE DUAL 24DIP
Manufacturer
STMicroelectronics
Type
H Bridger
Datasheet

Specifications of L6227N

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
Through Hole
Package / Case
PowerSSO-24
Operating Supply Voltage
8 V to 52 V
Supply Current
1.4 A
Mounting Style
Through Hole
For Use With
497-6817 - EVAL BOARD FOR L6227Q
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-3648
L6227
Figure 10. Area where t
can vary maintaining the PWM regulation.
ON
100
10
1.5 s (typ. value)
1
0.1
1
10
100
Coff [nF]
SLOW DECAY MODE
Figure 11 shows the operation of the bridge in the Slow Decay mode. At the start of the off time, the lower power
MOS is switched off and the current recirculates around the upper half of the bridge. Since the voltage across
the coil is low, the current decays slowly. After the dead time the upper power MOS is operated in the synchro-
nous rectification mode. When the monostable times out, the lower power MOS is turned on again after some
delay set by the dead time to prevent cross conduction.
Figure 11. Slow Decay Mode Output Stage Configurations
A) ON TIME
B) 1 s DEAD TIME
C) SYNCHRONOUS
D) 1 s DEAD TIME
RECTIFICATION
D01IN1336
12/22

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