IR2086S Datasheet, PDF (1/8 Pages) International Rectifier – HIGH SPEED, 100V, SELF OSCILLATING 50% DUTY CYCLE, FULL-BRIDGE DRIVER

Data Sheet PD No.60226
IR2086S
HIGH SPEED, 100V, SELF OSCILLATING 50% DUTY CYCLE,
FULL-BRIDGE DRIVER
Features
Product Summary
• Simple primary side control solution to enable full-bridge
DC-Bus Converters for 48V distributed systems with reduced
component count and board space.
• 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
V_{CC (max)}
V_offset(max)
High/low side
output freq (f_osc)
Output Current (I_O)
High/low side pulse
edge matching
25V
100Vdc
500kHz
+/-1.2A
+/- 25ns
Description
The IR2086S is a self oscillating full-bridge controller and driver IC with
Package
50% duty cycle ideally suited for 36V-75V full-bridge DC Bus Converters.
Dead time can be controlled through proper selection of C_T 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.
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