L6227N データシートの表示（PDF） - STMicroelectronics
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L6227N Datasheet PDF : 22 Pages
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L6227
PIN DESCRIPTION (continued)
23
8
ENA
24
9
VREFA
Logic Input (6)
Bridge A Enable. LOW logic level switches OFF all Power
MOSFETs of Bridge A. This pin is also connected to the
collector of the Overcurrent and Thermal Protection
transistor to implement over current protection.
If not used, it has to be connected to +5V through a
resistor.
Analog Input Bridge A Current Controller Reference Voltage.
Do not leave this pin open or connect to GND.
(6)
Also connected at the output drain of the Over current and Thermal protection MOSFET. Therefore, it has to be driven putting in
series a resistor with a value in the range of 2.2KΩ - 180KΩ, recommended 100KΩ.
ELECTRICAL CHARACTERISTICS
(Tamb = 25 °C, Vs = 48V, unless otherwise specified)
Symbol
Parameter
Test Conditions
Min Typ Max Unit
VSth(ON) Turn-on Threshold
VSth(OFF) Turn-off Threshold
5.8
6.3
6.8
V
5
5.5
6
V
IS Quiescent Supply Current
All Bridges OFF;
Tj = -25°C to 125°C (7)
Tj(OFF) Thermal Shutdown Temperature
5
10
mA
165
°C
Output DMOS Transistors
RDS(ON) High-Side +Low-Side Switch ON Tj = 25 °C
Resistance
Tj =125 °C (7)
1.47 1.69
Ω
2.35 2.7
Ω
IDSS Leakage Current
EN = Low; OUT = VS
EN = Low; OUT = GND
-0.3
2
mA
mA
Source Drain Diodes
VSD Forward ON Voltage
trr Reverse Recovery Time
ISD = 1.4A, EN = LOW
If = 1.4A
1.15 1.3
V
300
ns
tfr Forward Recovery Time
200
ns
Logic Input
VIL Low level logic input voltage
-0.3
0.8
V
VIH High level logic input voltage
2
7
V
IIL Low Level Logic Input Current GND Logic Input Voltage
-10
µA
IIH High Level Logic Input Current 7V Logic Input Voltage
10
µA
Vth(ON) Turn-on Input Threshold
1.8
2.0
V
Vth(OFF) Turn-off Input Threshold
0.8
1.3
V
Vth(HYS) Input Threshold Hysteresis
0.25 0.5
V
Switching Characteristics
tD(on)EN Enable to out turn ON delay time (8) ILOAD =1.4A, Resistive Load
500
800
ns
5/22
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