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Número de pieza | BTN8982 | |
Descripción | High Current PN Half Bridge NovalithIC | |
Fabricantes | Infineon | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de BTN8982 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
No Preview Available ! BTN8960 /62 /80 /82
High Current PN Half Bridge
NovalithIC™
Application Note
Rev. 0.3, 2014-09-11
Automotive Power
1 page BTN8960 /62 /80 /82
High Current PN Half Bridge
Motor Configurations
2.2 H-Bridge configuration for bidirectional motor control
With the NovalithIC™ family it is easy to build an H-bridge for bidirectional DC motor control by simply combining
two devices in H-bridge configuration, as it is shown in Figure 3 .
Microcontroller
XC866
I /O
Reset
Vdd
Vss
A/D I/O I/O I/O A/D
optional
Voltage Regulator
WO
RO
TLE
4278G
I
Q
CQ
22µF
D
GND
CD
47nF
CI
470nF
Reverse Polarity
Protection
( IPD90 P03 P 4L- 04 )
L1 DZ1
10V
R3
10k Ω
VS
C1
47µF/
100µF
R12
10kΩ
R11
10kΩ
BTN89xy
VS
INH
IN OUT
C1IS
1nF
R112
1k Ω
C12
100nF
IS
SR
R111
0..51kΩ
GND
C10
470µF/
1000µF
C19
100nF
C1O 2V
220nF
C2 O2V
220nF
M
C1OUT
220nF
C2OUT
C29
220nF 100nF
BTN89xy
VS
INH
OUT
IN
IS
GND
SR
R211
0..51k Ω
Figure 3 Application circuit for a bidirectional motor with BTN89xy H-bridge
R22
10k Ω
R21
10k Ω
R212
1kΩ
C22
100nF
C2IS
1nF
Application Note
5 Rev. 0.3, 2014-09-11
5 Page BTN8960 /62 /80 /82
High Current PN Half Bridge
Design guideline
The maximum pulse length is determined by the PWM frequency, theoretically at a duty cycle of 100%:
T = Tpulse = TPWM
=
1
f PWM
(6)
PWM
IM
Vs
TPWM
∆IOUT
Epulse
IOUT,min
ON
∆VS
t
t
VS,DC
t
Figure 7 PWM control (PWM=IN-pin-signal, IM=motor current and VS=VS-pin-voltage @ NovalithIC)
Insertion of Equation (3) to Equation (6) into Equation (2)
E
=
1
2
⋅ CDC−link
⋅ (VS,DC
+
ΔVS )2
=
(PDC
+
ΔP) ⋅TPWM
(7)
1
2
⋅ CDC −link
⋅ (VS2,DC
+ 2 ⋅VS,DC ⋅ ΔVS
+ ΔVS2 ) = PDC ⋅TPWM
+ ΔP ⋅TPWM
(8)
Application Note
11 Rev. 0.3, 2014-09-11
11 Page |
Páginas | Total 30 Páginas | |
PDF Descargar | [ Datasheet BTN8982.PDF ] |
Número de pieza | Descripción | Fabricantes |
BTN8980 | High Current PN Half Bridge NovalithIC | Infineon |
BTN8982 | High Current PN Half Bridge NovalithIC | Infineon |
BTN8982TA | High Current PN Half Bridge NovalithIC | Infineon |
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