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Número de pieza | L6226N | |
Descripción | DMOS DUAL FULL BRIDGE DRIVER | |
Fabricantes | STMicroelectronics | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de L6226N (archivo pdf) en la parte inferior de esta página. Total 22 Páginas | ||
No Preview Available ! L6226
DMOS DUAL FULL BRIDGE DRIVER
s OPERATING SUPPLY VOLTAGE FROM 8 TO 52V
s 2.8A OUTPUT PEAK CURRENT (1.4A DC)
s RDS(ON) 0.73Ω TYP. VALUE @ Tj = 25 °C
s OPERATING FREQUENCY UP TO 100KHz
s PROGRAMMABLE HIGH SIDE OVERCURRENT
DETECTION AND PROTECTION
s DIAGNOSTIC OUTPUT
s PARALLELED OPERATION
s CROSS CONDUCTION PROTECTION
s THERMAL SHUTDOWN
s UNDER VOLTAGE LOCKOUT
s INTEGRATED FAST FREE WHEELING DIODES
TYPICAL APPLICATIONS
s BIPOLAR STEPPER MOTOR
s DUAL OR QUAD DC MOTOR
DESCRIPTION
The L6226 is a DMOS Dual Full Bridge designed for
motor control applications, realized in MultiPower-
BLOCK DIAGRAM
PowerDIP24
(20+2+2)
PowerSO36
SO24
(20+2+2)
ORDERING NUMBERS:
L6226N (PowerDIP24)
L6226PD (PowerSO36)
L6226D (SO24)
BCD technology, which combines isolated DMOS
Power Transistors with CMOS and bipolar circuits on
the same chip. Available in PowerDIP24 (20+2+2),
PowerSO36 and SO24 (20+2+2) packages, the
L6226 features thermal shutdown and a non-dissipa-
tive overcurrent detection on the high side Power
MOSFETs plus a diagnostic output that can be easily
used to implement the overcurrent protection.
VBOOT
VCP
PROGCLA
OCDA
VBOOT
CHARGE
PUMP
OCDA
ENA
IN1A
IN2A
OCDB
PROGCLB
ENB
IN1B
IN2B
THERMAL
PROTECTION
VOLTAGE
REGULATOR
10V
5V
OCDB
September 2003
OVER
CURRENT
DETECTION
GATE
LOGIC
OVER
CURRENT
DETECTION
GATE
LOGIC
VBOOT
10V
VBOOT
VSA
OUT1A
OUT2A
10V
SENSEA
BRIDGE A
BRIDGE B
D99IN1088A
VSB
OUT1B
OUT2B
SENSEB
1/22
1 page L6226
PIN DESCRIPTION (continued)
PACKAGE
SO24/
PowerDIP24
PowerSO36
Name
PIN #
PIN #
22 7 VCP
23 8 ENA
24 9 PROGCLA
Type
Function
Output
Logic Input
R Pin
Charge Pump Oscillator Output.
Bridge A Enable. LOW logic level switches OFF all Power
MOSFETs of Bridge A.
If not used, it has to be connected to +5V.
Bridge A Overcurrent Level Programming. A resistor
connected between this pin and Ground sets the
programmable current limiting value for the bridge A. By
connecting this pin to Ground the maximum current is set.
This pin cannot be left non-connected.
ELECTRICAL CHARACTERISTICS
(Tamb = 25 °C, Vs = 48V, unless otherwise specified)
Symbol
Parameter
Test Conditions
VSth(ON) Turn-on Threshold
VSth(OFF) Turn-off Threshold
IS Quiescent Supply Current
All Bridges OFF;
Tj = -25°C to 125°C (6)
Tj(OFF) Thermal Shutdown Temperature
Output DMOS Transistors
RDS(ON) High-Side + Low-Side Switch ON Tj = 25 °C
Resistance
Tj =125 °C (6)
IDSS Leakage Current
EN = Low; OUT = VS
EN = Low; OUT = GND
Source Drain Diodes
VSD Forward ON Voltage
ISD = 2.8A, EN = LOW
trr Reverse Recovery Time
If = 1.4A
tfr Forward Recovery Time
Logic Input
VIL Low level logic input voltage
VIH High level logic input voltage
IIL Low Level Logic Input Current GND Logic Input Voltage
IIH High Level Logic Input Current 7V Logic Input Voltage
Vth(ON) Turn-on Input Threshold
Min Typ Max Unit
5.8 6.3 6.8
V
5 5.5 6
V
5 10 mA
165 °C
1.47 1.69
2.35 2.70
Ω
Ω
2 mA
-0.3 mA
1.15 1.3
300
200
V
ns
ns
-0.3 0.8 V
2 7V
-10 µA
10 µA
1.8 2.0
V
5/22
5 Page Figure 9. Output Current Protection Threshold versus RCL Value
2.5
2.25
2
1.75
1.5
1.25
I SOVER
[A ] 1
0.75
0.5
0.25
0 5k
10k 15k 20k 25k 30k 35k 40k
RCL [Ω ]
Figure 10. tDISABLE versus CEN and REN (VDD = 5V).
1 .103
REN = 220 kΩ
100
REN = 100 kΩ
REN = 47 kΩ
REN = 33 kΩ
REN = 10 kΩ
L6226
10
1
1 10 100
CEN [nF]
11/22
11 Page |
Páginas | Total 22 Páginas | |
PDF Descargar | [ Datasheet L6226N.PDF ] |
Número de pieza | Descripción | Fabricantes |
L6226 | DMOS DUAL FULL BRIDGE DRIVER | STMicroelectronics |
L6226D | DMOS DUAL FULL BRIDGE DRIVER | STMicroelectronics |
L6226N | DMOS DUAL FULL BRIDGE DRIVER | STMicroelectronics |
L6226PD | DMOS DUAL FULL BRIDGE DRIVER | STMicroelectronics |
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