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參數資料
| 型號： | IR2085S |
| 廠商： | International Rectifier |
| 英文描述： | HIGH SPEED, 100V, SELF OSCILLATING 50% DUTY CYCLE, HALF-BRIDGE DRIVER |
| 中文描述： | 高速，100V的，自振蕩50％的占空比，半橋驅動器 |
| 文件頁數： | 1/9頁 |
| 文件大小： | 213K |
| 代理商： | IR2085S |
HIGH SPEED, 100V, SELF OSCILLATING 50% DUTY CYCLE,
HALF-BRIDGE DRIVER
Package
IR2085S & (PbF)
Data Sheet No. PD60206 Rev.C
Simplified Circuit Diagram
Product Summary
www.irf.com
1
V
b
GND
LO
HO
V
s
Cs
OSC
V
cc
R
D
C
L
S
R2
V
o
R
C
Vbias
(10-15V)
S
S
C
2
C
1
1
2
Vin
( 100V max)
T
C
T
C
BIAS
BOOT
BOOT
S
R1
I
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 IC in a
single SO-8 package
Programmable switching frequency with up to 500kHz max per
channel
+/- 1A drive current capability optimized for low charge MOSFETs
Adjustable dead-time 50nsec – 200nsec
Floating channel designed for bootstrap operation up to +100Vdc
High and low side pulse width matching to +/- 25nsec
Adjustable overcurrent protection
Undervoltage lockout and internal soft start
Also available LEAD-FREE
V
CC (max)
25V
V
offset(max)
100Vdc
High/low side
output freq (f
osc
) 500kHz
Output Current (I
O
)
+/-1.0A(typ.)
High/low side pulse
width matching +/- 25ns
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
osc
, where f
osc
can be set by selecting R
T
& C
T
,
where f
osc
≈
1/(2*R
T
.C
T
). Dead-time can be controlled through proper selection of C
T
and can range from 50 to 200nsec. Internal 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
CC
is less than 7.5Vdc.
SO -8
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相關代理商/技術參數 |
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| IR2085SHR | 制造商:International Rectifier 功能描述:MOSFET DRVR 100V 1A 2-OUT Hi/Lo Side Half Brdg 8-Pin SOIC Tube 制造商:International Rectifier 功能描述:MOSFET DRVR 100V 1A 2-OUT HI/LO SIDE HALF BRDG SELF-OSC 8SOI - Rail/Tube |
| IR2085SPBF | 功能描述:IC DRIVER HALF BRIDGE OSC 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅動器 - 外部開關 系列:- 標準包裝:50 系列:- 配置:高端 輸入類型:非反相 延遲時間:200ns 電流 - 峰:250mA 配置數:1 輸出數:1 高端電壓 - 最大（自引導啟動）:600V 電源電壓:12 V ~ 20 V 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應商設備封裝:8-DIP 包裝:管件 其它名稱:*IR2127 |
| IR2085STR | 功能描述:IC DRVR HALF-BRDG SELF-OSC 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅動器 - 外部開關 系列:- 標準包裝:50 系列:- 配置:高端 輸入類型:非反相 延遲時間:200ns 電流 - 峰:250mA 配置數:1 輸出數:1 高端電壓 - 最大（自引導啟動）:600V 電源電壓:12 V ~ 20 V 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應商設備封裝:8-DIP 包裝:管件 其它名稱:*IR2127 |
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| IR2085STRPBF | 功能描述:功率驅動器IC Hi Spd 100V 50% Duty Cycle Hlf Brdg Drvr RoHS:否 制造商:Micrel 產品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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