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參數(shù)資料
| 型號： | IRU3033CS |
| 廠商： | International Rectifier |
| 英文描述： | 8-PIN PWM SWITCHER AND LINEAR CONTROLLER IC |
| 中文描述： | 8引腳的PWM切換器和線性控制器芯片 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大小： | 76K |
| 代理商： | IRU3033CS |
IRU3033
3
Rev. 1.7
07/17/02
www.irf.com
PIN DESCRIPTIONS
PIN # PIN SYMBOL
1
Drv1
BLOCK DIAGRAM
Figure 2 - Simplified block diagram of the IRU3033.
The PWM output of the switching controller. This pin is a totem pole drive that is con-
nected to the gate of the power MOSFET. A resistor may be placed from this pin to the
gate in order to reduce switching noise.
This pin supplies the voltage to the PWM drive and hysteresis circuitry and it is connected
to the 12V supply. A 1
μ
F, high frequency capacitor must be connected from this pin to
ground to provide the peak current for charging and discharging of the MOSFET.
A resistor divider from this pin to the output of the switching regulator and ground sets the
Core supply voltage.
A resistor and a 10pF capacitor is connected from this pin to the V
FB1
pin to set the output
ripple voltage for the switching regulator.
This pin is connected to the IC substrate and must be connected to the lowest potential in
the system.
The feedback pin of the linear regulator. A resistor divider from this pin to the output of the
linear regulator and ground sets the I/O supply voltage.
The drive pin of the linear regulator. This pin controls the base of a transistor or the gate
of a MOSFET acting as the series pass element for the linear regulator.
This pin provides the biasing for the chip and drive for the linear regulator controller. It is
connected to 12V supply. A 10
resistor in series from this pin to the 12V supply and a
1
μ
F, high frequency capacitor connected from this pin to ground is required to filter the
switching noise of the switching regulator.
PIN DESCRIPTION
2
3
4
5
6
7
8
V
12(SW)
V
FB1
V
HYST
Gnd
V
FB2
Drv2
V
12
V
REF
UVLO
1.25V
PWM Control
V
12(SW)
2
V
HYST
4
V
FB2
6
Drv 1
1
Gnd
5
V
FB1
3
Drv2
7
V
12
8
5V Reg
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IRU3033CSPBF | 功能描述:IC CONTROLLER PWM SWITCH 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,000 系列:- 應用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數(shù):10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應商設備封裝:42-WLP 包裝:帶卷 (TR) |
| IRU3033CSTR | 功能描述:IC CTRL/REG PWM SWITCH 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標準包裝:2,000 系列:- 應用:控制器，DSP 輸入電壓:4.5 V ~ 25 V 輸出數(shù):2 輸出電壓:最低可調(diào)至 1.2V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:30-TFSOP（0.173"，4.40mm 寬） 供應商設備封裝:30-TSSOP 包裝:帶卷 (TR) |
| IRU3034 | 制造商:IRF 制造商全稱:International Rectifier 功能描述:8-PIN PWM SWITCHER CONTROLLER IC WITH CURRENT LIMITING |
| IRU3034CS | 功能描述:IC CTRL/REG PWM SWITCH 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標準包裝:2,000 系列:- 應用:控制器，DSP 輸入電壓:4.5 V ~ 25 V 輸出數(shù):2 輸出電壓:最低可調(diào)至 1.2V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:30-TFSOP（0.173"，4.40mm 寬） 供應商設備封裝:30-TSSOP 包裝:帶卷 (TR) |
| IRU3034CSPBF | 制造商:International Rectifier 功能描述:PWM CONTROLLER SMD 3034 SOIC8 |
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