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L6227D Datasheet(PDF) 4 Page - STMicroelectronics

Part # L6227D
Description  DMOS DUAL FULL BRIDGE DRIVER WITH PWM CURRENT CONTROLLER
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6227D Datasheet(HTML) 4 Page - STMicroelectronics

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L6227
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PIN DESCRIPTION
PACKAGE
Name
Type
Function
SO24/
PowerDIP24
PowerSO36
PIN #
PIN #
1
10
IN1A
Logic input
Bridge A Logic Input 1.
2
11
IN2A
Logic input
Bridge A Logic Input 2.
3
12
SENSEA
Power Supply
Bridge A Source Pin. This pin must be connected to Power
Ground through a sensing power resistor.
413
RCA
RC Pin
RC Network Pin. A parallel RC network connected
between this pin and ground sets the Current Controller
OFF-Time of the Bridge A.
5
15
OUT1A
Power Output
Bridge A Output 1.
6, 7,
18, 19
1, 18,
19, 36
GND
GND
Signal Ground terminals. In Power DIP and SO packages,
these pins are also used for heat dissipation toward the
PCB.
8
22
OUT1B
Power Output
Bridge B Output 1.
924
RCB
RC Pin
RC Network Pin. A parallel RC network connected
between this pin and ground sets the Current Controller
OFF-Time of the Bridge B.
10
25
SENSEB
Power Supply
Bridge B Source Pin. This pin must be connected to Power
Ground through a sensing power resistor.
11
26
IN1B
Logic Input
Bridge B Input 1
12
27
IN2B
Logic Input
Bridge B Input 2
13
28
VREFB
Analog Input
Bridge B Current Controller Reference Voltage.
Do not leave this pin open or connect to GND.
14
29
ENB
Logic Input (6)
Bridge B Enable. LOW logic level switches OFF all Power
MOSFETs of Bridge B. 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.
15
30
VBOOT
Supply
Voltage
Bootstrap Voltage needed for driving the upper Power
MOSFETs of both Bridge A and Bridge B.
16
32
OUT2B
Power Output
Bridge B Output 2.
17
33
VSB
Power Supply
Bridge B Power Supply Voltage. It must be connected to
the supply voltage together with pin VSA.
20
4
VSA
Power Supply
Bridge A Power Supply Voltage. It must be connected to
the supply voltage together with pin VSB.
21
5
OUT2A
Power Output
Bridge A Output 2.
22
7
VCP
Output
Charge Pump Oscillator Output.


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