參數(shù)資料
型號(hào)： IRU3037
廠商： International Rectifier
英文描述： 8-PIN SYNCHRONOUS PWM CONTROLLER
中文描述： 8引腳同步PWM控制器
文件頁(yè)數(shù)： 3/21頁(yè)
文件大?。?/td> 220K
代理商： IRU3037
IRU3037 / IRU3037A
3
Rev. 2.8
03/10/03
www.irf.com
PARAMETER
Error Amp
Fb Voltage Input Bias Current
Fb Voltage Input Bias Current
Transconductance
Oscillator
Frequency
SYM TEST CONDITION
MIN TYP
MAX
UNITS
PIN DESCRIPTIONS
PIN# PIN SYMBOL PIN DESCRIPTION
1
Fb
This pin is connected directly to the output of the switching regulator via resistor divider to
provide feedback to the Error amplifier.
This pin provides biasing for the internal blocks of the IC as well as power for the low side
driver. A minimum of 1
μ
F, high frequency capacitor must be connected from this pin to
ground to provide peak drive current capability.
Output driver for the synchronous power MOSFET.
This pin serves as the ground pin and must be connected directly to the ground plane. A
high frequency capacitor (0.1 to 1
μ
F) must be connected from V5 and V12 pins to this pin
for noise free operation.
Output driver for the high side power MOSFET. Connect a diode, such as BAT54 or 1N4148,
from this pin to ground for the application when the inductor current goes negative (Source/
Sink), soft-start at no load and for the fast load transient from full load to no load.
This pin is connected to a voltage that must be at least 4V higher than the bus voltage of
the switcher (assuming 5V threshold MOSFET) and powers the high side output driver. A
minimum of 1
μ
F, high frequency capacitor must be connected from this pin to ground to
provide peak drive current capability.
Compensation pin of the error amplifier. An external resistor and capacitor network is
typically connected from this pin to ground to provide loop compensation.
This pin provides soft-start for the switching regulator. An internal current source charges
an external capacitor that is connected from this pin to ground which ramps up the output
of the switching regulator, preventing it from overshooting as well as limiting the input
current. The converter can be shutdown by pulling this pin below 0.5V.
Ramp-Amplitude Voltage
Output Drivers
Rise Time
Fall Time
Dead Band Time
Max Duty Cycle
Min Duty Cycle
SS=3V, Fb=1V
SS=0V, Fb=1V
IRU3037
IRU3037A
C
L
=1500pF
C
L
=1500pF
Fb=1V, Freq=200KHz
Fb=1.5V
410
180
345
1.225
50
85
0
-0.1
-64
600
200
400
1.25
50
50
150
90
0
830
220
440
1.275
100
100
250
95
μ
A
μ
A
μ
mho
KHz
V
ns
ns
ns
%
%
2
3
4
5
6
7
8
Vcc
LDrv
Gnd
HDrv
Vc
Comp
SS / SD
I
FB1
I
FB2
g
m
Freq
V
RAMP
T
r
T
f
T
DB
T
ON
T
OFF
相關(guān)PDF資料
PDF描述
IRU3037A 8-PIN SYNCHRONOUS PWM CONTROLLER
IRU3037ACF 8-PIN SYNCHRONOUS PWM CONTROLLER
IRU3037ACS 8-PIN SYNCHRONOUS PWM CONTROLLER
IRU3037CF 8-PIN SYNCHRONOUS PWM CONTROLLER
IRU3037CS RES CHIP 383OHM 1/10 1% 100PP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IRU3037A 制造商:IRF 制造商全稱(chēng):International Rectifier 功能描述:8-PIN SYNCHRONOUS PWM CONTROLLER
IRU3037ACF 功能描述:IC REG CTRLR BUCK PWM VM 8-TSSOP RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤(pán) 包裝:帶卷 (TR)
IRU3037ACFPBF 功能描述:IC REG CTRLR BUCK PWM VM 8-TSSOP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤(pán) 包裝:帶卷 (TR)
IRU3037ACFTRPBF 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 8 PWM 200 KHZ 500mA Synch CTRL RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
IRU3037ACS 功能描述:IC REG CTRLR BUCK PWM VM 8-SOIC RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤(pán) 包裝:帶卷 (TR)
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*