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参数资料
| 型号： | IR1150IPBF |
| 厂商： | International Rectifier |
| 文件页数： | 8/16页 |
| 文件大小： | 919K |
| 描述： | IC PFC CONTROLLER CCM 8-DIP |
| 标准包装： | 50 |
| 模式： | 连续导电（CCM） |
| 频率 - 开关： | 200kHz |
| 电流 - 启动： | 175µA |
| 电源电压： | 15 V ~ 20 V |
| 工作温度： | -25°C ~ 85°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-DIP |
| 包装： | 管件 |
IR1150(S)/IR1150I(S)(PbF)
www.irf.com
8
Detailed Pin Description
COM: Ground
This is the ground potential pin of the integrated control
circuit. All internal devices are referenced to this point.
V
FB
: 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 ?.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
frequency 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 protection
comparator with threshold around -1V. This protection
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 summing node where it is
subtracted from the compensation voltage V
COMP
.
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& .
V
CC
: 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 IR1150.
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
programmed to 105.5% of VREF.
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 below the pin threshold.
This pin is also used to activate sleep mode by pulling
the voltage level below 0.62V (typ).
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IR1150IS | 制造商:IRF 制造商全称:International Rectifier 功能描述:UPFC ONE CYCLE CONTROL PFC IC |
| IR1150ISTR | 制造商:International Rectifier 功能描述:PWR FCTR CORRECTION CONTRLR 0.175MA 50KHZ TO 200KHZ 8SOIC - Tape and Reel |
| IR1150ISTRPBF | 功能描述:IC PFC CONTROLLER CCM 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - PFC（功率因数修正） 系列:- 产品培训模块:GreenChip Synchronous Rectification Control Family of ICs 标准包装:1 系列:- 模式:间歇导电（DCM） 频率 - 开关:- 电流 - 启动:- 电源电压:8.6 V ~ 38 V 工作温度:-20°C ~ 150°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SO 包装:Digi-Reel® 其它名称:568-5348-6 |
| IR1150LS | 制造商:IRF 制造商全称:International Rectifier 功能描述:UPFC ONE CYCLE CONTROL PFC IC |
| IR1150PBF | 功能描述:IC PFC CONTROLLER CCM 8-DIP RoHS:是 类别:集成电路 (IC) >> PMIC - PFC（功率因数修正） 系列:- 产品培训模块:GreenChip Synchronous Rectification Control Family of ICs 标准包装:1 系列:- 模式:间歇导电（DCM） 频率 - 开关:- 电流 - 启动:- 电源电压:8.6 V ~ 38 V 工作温度:-20°C ~ 150°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SO 包装:Digi-Reel® 其它名称:568-5348-6 |
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