L6226 STMicroelectronics, L6226 Datasheet - Page 10

• Manufacturer Part Number: L6226
• Description: DMOS DUAL FULL BRIDGE DRIVER
• Manufacturer: STMicroelectronics

L6226
Figure 7. Overcurrent Protection Simplified Schematic
Figure 8. Overcurrent Protection Waveforms
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C or LOGIC
+5V
R
C
ENA
ENA
BRIDGE
V
I
V
SOVER
OCD
th(OFF)
V
th(ON)
OFF
OFF
I
EN
V
OUT
ON
ON
DD
OCD
t
OCD(ON)
EN
A
A
40 TYP.
R
DS(ON)
t
EN(FALL)
t
TO GATE
DELAY
LOGIC
OPEN-DRAIN
INTERNAL
POWER SENSE
t
D(OFF)EN
1 cell
TEMPERATURE
COMPARATOR
OVER
OCD
t
POWER DMOS
OCD(OFF)
n cells
PROGCL
OUT1
V
I
1A
A,
EN(LOW)
t
t
EN(RISE)
DISABLE
/ n
A
I
1A
R
VS
CLA
I
I
(I
REF
REF
+
1A
A
.
+I
I
2A
2A
OUT2
) / n
I
+
-
2A
POWER DMOS
A
/ n
t
D(ON)EN
n cells
1.2V
HIGH SIDE DMOSs OF
D02IN1400
THE BRIDGE A
D02IN1354
POWER SENSE
1 cell