|
|
PDF IR2086SPBF Data sheet ( Hoja de datos )
| Número de pieza | IR2086SPBF | |
| Descripción | FULL-BRIDGE DRIVER | |
| Fabricantes | International Rectifier | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de IR2086SPBF (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
|
No Preview Available !
Data Sheet PD No.60226 revB
IR2086S(PbF)
HIGH SPEED, 100V, SELF OSCILLATING 50% DUTY CYCLE,
FULL-BRIDGE DRIVER
Features
• Simple primary side control solution to enable full-bridge
Product Summary
DC-Bus Converters for 48V distributed systems with reduced
component count and board space.
VCC (max)
• Frequency and dead time set by two external components
• Maximum 500KHz per channel output with 50% duty cycle
• Adjustable dead time 50nsec ~ 200nsec
• Floating channel designed for bootstrap operation up to +100Vdc
• High and low side pulse width matching to +/- 25nsec
• Overcurrent protection with adjustable hiccup period.
• Undervoltage lockout and internal soft start
• Part also available leadfree
Voffset(max)
High/low side
output freq (fosc)
Output Current (IO)
High/low side pulse
edge matching
25V
100Vdc
500kHz
+/-1.2A
+/- 25ns
Description
The IR2086S(PbF) is a self oscillating full-bridge controller and driver IC
with 50% duty cycle ideally suited for 36V-75V full-bridge DC Bus
Converters.
Dead time can be controlled through proper selection of CT and can range
from 50 to 200nsec. Internal soft start increases pulse width on power up
and maintains equal pulse widths for the high and low outputs throughout
the start up cycle. Undervoltage lockout prevents operation if Vcc is less than
7.5 Vdc. Over current shutdown occurs when the voltage on the Cs pin
exceeds 200mV. Restart after overcurrent trip can be delayed by adjusting
the external capacitor. The delay time ranges from 10µs to 1s.
Package
16-Lead SOIC
Typical
VBUSS (100 VDC MAX)
Connection VCC (9 ~15V)
IR2086S VB1
RT CS HO1
DELAY VS1
CT COM2*
(Refer to Lead Assign-
ments for correct pin
configuration). This/
These diagram(s)
CT
CD**
COM1
LO1
VCC
LO2
VS2
HO2
VB2
show electrical connec-
tions only. Please refer
RSENSE
to our Application
Notes and DesignTips
for proper circuit board *COM2 must be shorted to COM1 for proper operation
layout.
**CD is optional
1 page  
IR2086S(PbF)
Lead Definitions
Symbol Description
VCC
Supply
COM1,2 Supply return
VB1,2
VS1,2
HO1,2
High side floating supply
Floating supply return
High side output
LO1,2 Low side output
CT Oscillator Input
CS Current sense input
DELAY Over current restart delay
Lead Assignments
1 n/c
2 CS
VB1 16
IR2086S
HO1 15
3 DELAY
VS1 14
4 CT
COM2 13
5 COM1
LO2 12
6 LO1
VS2 11
7 VCC
HO2 10
8 n/c
VB2 9
Detailed Pin Description
Cs: The input pin to the overcurrent comparator. Exceeding the overcurrent threshold value specified in
“Static Electrical Parameters” Section will terminate output pulses. A new soft start cycle will commence after
the expiration of the programmed delay time at DELAY pin.
DELAY: Delay programming pin for restart after overcurrent condition. A capacitor connected to this pin will
determine the delay form the over current trip to the beginning of a new soft start cycle. The delay time ranges
from 10us to 1s, and is set according to:
td
≈
Cd Vcc
2uA
+ 10us
CT: The oscillator-programming pin. Only two components are required to program the internal oscillator
frequency: a resistor connected between the Vcc pin and the CT pin, and a capacitor connected from the CT
pin to GND. The approximate oscillator frequency is determined by the following simple formula:
fosc = 1 / (2 · RT · CT)
Where frequency is in Hertz (Hz), RT resistance in Ohms (Ω) and CT capacitance in Farads (F). The recom-
mended range of timing resistors is between 10kΩ and 100kΩ and range of time capacitances is between
47pF and 470pF. The timing resistors less than 10kΩ should be avoided.
The value of the timing capacitor determines the amount of dead time between the two output drivers: lower
the CT, shorter the dead time and vice versa. It is not recommended to use a timing capacitor below 47pF.
For best performance, keep the time components as close as possible to the IR2086S. Separated ground and
Vdd traces to the timing components are encouraged.
www.irf.com
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet IR2086SPBF.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| IR2086SPBF | FULL-BRIDGE DRIVER | International Rectifier |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |