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參數(shù)資料
| 型號： | IR1150STR |
| 廠商： | International Rectifier |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | UPFC ONE CYCLE CONTROL PFC IC |
| 中文描述： | 統(tǒng)一潮流控制器的單周期控制功率因數(shù)校正集成電路 |
| 文件頁數(shù)： | 15/16頁 |
| 文件大?。?/td> | 248K |
| 代理商： | IR1150STR |
IR1150S/IR1150IS(PbF)
www.irf.com
8
COM: Ground
This is the ground potential pin of the integrated con-
trol circuit. All internal devices are referenced to this
point.
VFB: Output Voltage Feedback
The output voltage of the boost converter is sensed
via a resistive divider and fed into this pin, which is
the inverting input of the output voltage error amplifier.
The impedance of the divider string must be low
enough so as to not introduce substantial error due
to the input bias currents of the amplifier, yet high
enough so as to minimize power dissipation. A typical
value of external divider impedance is 1M
.
The error amplifier is a transconductance type which
yields high output impedance, thus increasing the
noise immunity of the error amplifier output. This also
eliminates input divider string interaction with
compensation feedback capacitors and reducing the
loading of divider string due to a low impedance
output of the amplifier.
COMP: Voltage Loop Compensation
External circuitry from this pin to ground
compensates the system voltage loop and soft start
time. This is the output of the voltage error amplifier.
This pin will be discharged via internal resistance
when a fault mode occurs.
GATE: Gate Drive Output
This is the gate drive output of the IC. Drive voltage is
internally limited and provides ±1.5A peak with
matched rise and fall times.
FREQ: Frequency Set
This is the user programmable frequency pin. An
external resistor from this pin to the COM pin pro-
grams the frequency. The operational switching fre-
quency range for the device is 50kHz – 200kHz.
ISNS: Current Sense input
This pin is the inverting Current Sense Input & Peak
Current Limit. The voltage at this pin is the negative
voltage drop, sensed across the system current
sense resistor, representing the inductor current.
This voltage is fed into the Peak Current Limit pro-
tection comparator with threshold arond -1V. This pro-
tection circuit incorporates a leading edge blanking
circuit following the comparator to improve noise
immunity of the protection process.
The current sense signal is also fed into the current
sense amplifier. The signal is amplified, filtered of
high frequency noise and then injected into a sum-
ming node where it is subtracted from the compen-
sation voltage VCOMP.
The signal on this pin must be previously filtered
with an RC cell to provide additional noise immunity.
The input impedance of this pin is 5k
.
VCC: Supply Voltage
This is the supply voltage pin of the IC and it is
monitored by the under voltage lockout circuit. It is
possible to turn off the IC by pulling this pin below
the minimum turn off threshold voltage, without
damage to the IC.
To prevent noise problems, a bypass ceramic
capacitor connected to VCC and COM should be
placed as close as possible to the IR1150S.
This pin is not internally clamped, therefore damage
will occur if the maximum voltage is exceeded.
OVP/EN: Over Voltage Protection / Enable
This pin is the input to the over voltage protection
comparator the threshold of which is internally pro-
grammed to 105.5% of V
REF.
A resistive divider feeds this pin from the output volt-
age to COM and inhibits the gate drive whenever the
threshold is exceeded. Normal operation resumes
when the voltage level on this pin decreases to be-
low the pin threshold.
This pin is also used to activate “sleep” mode by
pulling the voltage level below 0.62V (typ).
Detailed Pin Description
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IR1150STRPBF | 功能描述:IC PFC CONTROLLER CCM 8-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - PFC（功率因數(shù)修正） 系列:- 產(chǎn)品培訓(xùn)模塊:GreenChip Synchronous Rectification Control Family of ICs 標(biāo)準(zhǔn)包裝:1 系列:- 模式:間歇導(dǎo)電（DCM） 頻率 - 開關(guān):- 電流 - 啟動:- 電源電壓:8.6 V ~ 38 V 工作溫度:-20°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SO 包裝:Digi-Reel® 其它名稱:568-5348-6 |
| IR1152S | 制造商:IRF 制造商全稱:International Rectifier 功能描述:FIXED 66kHz FREQUENCY, μPFC ONE CYCLE CONTROL PFC IC WITH BROWN-OUT PROTECTION |
| IR1152SPBF | 功能描述:功率因數(shù)校正 IC 1 CYCLE CTRL PFC IC 66kHz 75uA ESD RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| IR1152SPBF | 制造商:International Rectifier 功能描述:; UVLO:10.1V; Startup Current:26; Oper 制造商:International Rectifier 功能描述:IC, uPFC CONTROLLER, 17V, SOIC-8 |
| IR1152STRPBF | 功能描述:功率因數(shù)校正 IC OCC PFC Cntrl Fix Frequency RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
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