- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377500 > IR3622AMPBF (International Rectifier) HIGH FREQUENCY 2-PHASE, SINGLE OR DUAL OUTPUT SYNCHRONOUS STEP DOWN CONTROLLER WITH OUTPUT TRACKING AND SEQUENCING PDF資料下載
參數(shù)資料
| 型號(hào)： | IR3622AMPBF |
| 廠商： | International Rectifier |
| 英文描述： | HIGH FREQUENCY 2-PHASE, SINGLE OR DUAL OUTPUT SYNCHRONOUS STEP DOWN CONTROLLER WITH OUTPUT TRACKING AND SEQUENCING |
| 中文描述： | 高頻2相，單或雙輸出同步降壓控制器，輸出跟蹤和排序 |
| 文件頁數(shù)： | 25/33頁 |
| 文件大?。?/td> | 690K |
| 代理商： | IR3622AMPBF |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁當(dāng)前第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁
IR3622AMPbF
www.irf.com
Programming the Current-Limit
The Current-Limit threshold can be set by
connecting a resistor (R
SET
) from drain of low
side MOSFET to the OCSet pin. The resistor
can be calculated by using equation (7).
The R
ds(on)
has a positive temperature coefficient
and it should be considered for the worse case
operation. This resistor must be placed close to
the IC, place a small ceramic capacitor from this
pin to ground for noise rejection purposes.
K
4
R
R
R
current)
output
nominal
=
over
=
(50%
30
5
.
1
A
20
I
I
m
15
.
3
=
5
.
1
m
=
1
.
2
R
4
3
OCSet
LIM
o
SET
on
ds
=
=
=
)
(
)
(
25
)
7
R
I
R
I
I
on
ds
OCSet
OCSet
critical
L
SET
)
(
)
(
=
=
Layout Consideration
The layout is very important when designing high
frequency switching converters. Layout will affect
noise pickup and can cause a good design to
perform with less than expected results.
Start to place the power components, make all
the connection in the top layer with wide, copper
filled areas. The inductor, output capacitor should
be close to each other as possible. This helps to
reduce the EMI radiated by the power traces due
to the high switching currents through them.
Place input capacitor close to control FETs, to
reduce the ESR replace the single input capacitor
with two parallel units. The feedback part of the
system should be kept away from the inductor
and other noise sources, and be placed close to
the IC. In multilayer PCB use one layer as power
ground plane and have a control circuit ground
(analog ground), to which all signals are
referenced. The goal is to localize the high
current path to a separate loop that does not
interfere with the more sensitive analog control
function. These two grounds must be connected
together on the PC board layout at a single point.
The exposed pad of IC should be connected to
analog ground.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IR3622MPBF | HIGH FREQUENCY 2-PHASE, SINGLE OR DUAL OUTPUT SYNCHRONOUS STEP DOWN CONTROLLER WITH OUTPUT TRACKING AND SEQUENCING |
| IR3637STRPBF | 1% ACCURATE SYNCHRONOUS PWM CONTROLLER |
| IR3637SPBF | 1% ACCURATE SYNCHRONOUS PWM CONTROLLER |
| IR3638SPBF | HIGH FREQUENCY SYNCHRONOUS PWM BUCK CONTROLLER FOR TRACKING APPLIACTIONS |
| IR3651SPBF | HIGH VOLTAGE SYNCHRONOUS PWM BUCK CONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IR3622AMTRPBF | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 2 CH OR 2 PHASE SYNC PWM CNTRLR 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 |
| IR3622MPBF | 功能描述:IC REG CTRLR BUCK PWM VM 32MLPQ RoHS:是 類別: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 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
| IR3622MTRPBF | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 HI FREQ 2-PHASE Single or Dual SYNCH 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 |
| IR3623MPBF | 功能描述:IC REG CTRLR BUCK PWM VM 32MLPQ RoHS:是 類別: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 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
| IR3623MPBF_1 | 制造商:IRF 制造商全稱:International Rectifier 功能描述:HIGH FREQUENCY 2-PHASE, SINGLE OR DUAL OUTPUT SYNCHRONOUS STEP DOWN CONTROLLER WITH OUTPUT TRACKING AND SEQUENCING |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。