IR2085STRPBF International Rectifier, IR2085STRPBF Datasheet

IC DRIVER HALF BRIDGE OSC 8SOIC

IR2085STRPBF

Manufacturer Part Number
IR2085STRPBF
Description
IC DRIVER HALF BRIDGE OSC 8SOIC
Manufacturer
International Rectifier
Datasheets

Specifications of IR2085STRPBF

Configuration
Half Bridge
Input Type
Self Oscillating
Current - Peak
1A
Number Of Configurations
1
Number Of Outputs
2
High Side Voltage - Max (bootstrap)
100V
Voltage - Supply
10 V ~ 15 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Number Of Drivers
2
Driver Configuration
Self-Oscillating
Driver Type
High and Low Side
Rise Time
60ns
Fall Time
30ns
Frequency (max)
500KHz
Operating Supply Voltage (max)
15V
Peak Output Current
1mA
Power Dissipation
1W
Operating Supply Voltage (min)
10V
Operating Temp Range
-40C to 125C
Operating Temperature Classification
Automotive
Mounting
Surface Mount
Pin Count
8
Package Type
SOIC
Module Configuration
Half Bridge
Input Delay
40ns
Output Delay
20ns
Supply Voltage Range
10V To 15V
Driver Case Style
SOIC
No. Of Pins
8
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Delay Time
-
Lead Free Status / Rohs Status
Compliant
Other names
IR2085SPBFTR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
IR2085STRPBF
Manufacturer:
International Rectifier
Quantity:
1 950
Part Number:
IR2085STRPBF
Manufacturer:
Infineon Technologies
Quantity:
78 884
Part Number:
IR2085STRPBF
Manufacturer:
IR
Quantity:
1 525
www.irf.com
Typical Connection Diagram
Features
Description
The IR2085S is a self-oscillating half-bridge driver IC with 50% duty cycle ideally suited for 36V – 75V half-
bridge DC-bus converters.
This product is also suitable for push-pull converters without restriction on input voltage.
Each channel frequency is equal to f
Dead-time can be controlled through proper selection of C
soft-start increases the pulse width during power up and maintains pulse width matching for the high and
low outputs throughout the start up cycle. The IR2085S initiates a soft start at power up and after every
overcurrent condition. Undervoltage lockout prevents operation if V
IC in a single SO-8 package
max per channel
MOSFETs
+100Vdc
Simple primary side control solution to enable half-bridge DC-Bus
Converters for 48V distributed systems with reduced component
count and board space
Integrated 50% duty cycle oscillator & half-bridge driver
Programmable switching frequency with up to 500kHz
+/- 1A drive current capability optimized for low charge
Adjustable dead-time 50ns – 200ns
Floating channel designed for bootstrap operation up to
High and low side pulse width matching to +/- 25ns
Adjustable overcurrent protection
Undervoltage lockout and internal soft start
Also available Leadfree
OSC,
which can be set by selecting R
HIGH SPEED, 100V, SELF OSCILLATING 50%
T
DUTY CYCLE, HALF-BRIDGE DRIVER
and can range from 50ns to 200ns. Internal
CC
is less than 7.5V.
Product Summary
Package
T
Topology
V
I
f
Deadtime
HO/LO Pulse
Matching
& C
o+
OSC
8 - Lead SOIC
OFFSET
Data Sheet No. PD60206 Rev.D
& I
IR2085S & (PbF)
T,
(max)
where f
o-
(typical)
OSC
= 1/(2*R
50ns – 200ns
1.0A & 1.0A
Half-Bridge
+/- 25ns
≤ 100 V
500kHz
T
.C
T
).
1

IR2085STRPBF Summary of contents

Page 1

Features Simple primary side control solution to enable half-bridge DC-Bus Converters for 48V distributed systems with reduced component count and board space Integrated 50% duty cycle oscillator & half-bridge driver single SO-8 package Programmable switching frequency with ...

Page 2

IR2085S & (PbF) Absolute Maximum Ratings Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage param- eters are absolute voltages referenced to COM. All currents are defined positive into any lead. The thermal ...

Page 3

Dynamic Electrical Characteristics 12V 1000 pF, and T BIAS CC BS LOAD Symbol Definition t r Turn-on rise time t f Turn-off fall time fosc Per channel output frequency tdt High/low output ...

Page 4

IR2085S & (PbF) Functional Block Diagrams VCC UVLO RT OSC OSC BLOCK CT + OVC CS - VREF (250mV) GND Lead Definitions Symbol Description V CC Logic supply GND Logic supply return Vb High side floating supply V S Floating ...

Page 5

C = 220pF C = 470pF (kohms) Fig. 1 Typical Output Frequency (-25 180 160 140 120 100 80 60 ...

Page 6

IR2085S& (PbF) Pin Descriptions Cs: The input pin to the overcurrent comparator. Exceeding the overcurrent threshold value specified in “Static Electrical Parameters” Section will terminate output pulses and start a new soft start cycle as soon as the voltage on ...

Page 7

Case outline 0.25 [.010 0.25 [.010 NOTES: 1. DIMENSIONING & TOLERANC ING PER ASME Y14.5M-1994. 2. ...

Page 8

... PART DESIG NUMBER PART NUMBER S IR2085S S IR2085STR IR2085STRPbF This product has been designed and qualified for the industrial market. Qualification Standards can be found on IR’s Web Site WORLD HEADQUARTERS: 233 Kansas Street, El Segundo, California 90245 Tel: (310) 252-7105 8 10 IRxxxxxx YWW? ...

Related keywords