- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄384510 > IRU3046CF (International Rectifier) DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER PDF資料下載
參數(shù)資料
| 型號(hào)： | IRU3046CF |
| 廠商： | International Rectifier |
| 元件分類(lèi)： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
| 中文描述： | 雙同步PWM控制器，帶有均流電路和LDO控制器 |
| 文件頁(yè)數(shù)： | 3/20頁(yè) |
| 文件大小： | 163K |
| 代理商： | IRU3046CF |
第1頁(yè)第2頁(yè)當(dāng)前第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)
IRU3046
3
Rev. 1.9
09/27/02
www.irf.com
PARAMETER
Soft-Start Section
Charge Current
Power Good Section
Fb1 Lower Trip Point
Fb1 Upper Trip Point
Fb2 Lower Trip Point
Fb2 Upper Trip Point
Fb3 Lower Trip Point
Fb3 Upper Trip Point
Power Good Voltage OK
Error Amp Section
Fb Voltage Input Bias Current
Fb Voltage Input Bias Current
Transconductance 1
Transconductance 2
Input Offset Voltage for PWM2
Oscillator Section
Frequency
SYM TEST CONDITION MIN TYP MAX UNITS
Ramp Amplitude
Output Drivers Section
Rise Time
Fall Time
Dead Band Time
Max Duty Cycle
Min Duty Cycle
LDO Controller Section
Drive Current
Fb Voltage
Input Bias Current
SS=0V
Fb1 Ramping Down
Fb1 Ramping Up
Fb2 Ramping Down
Fb2 Ramping Up
Fb3 Ramping Down
Fb3 Ramping Up
5K resistor pulled up to 5V
SS=3V
SS=0V
Fb2 to V
P2
Rt=Open
Rt=Gnd
C
L
=1500pF
C
L
=1500pF
Fb=1V, Freq=200KHz
Fb=1.5V
15
4.5
-2
180
300
50
85
0
30
1.225
25
0.9
V
REF
1.1
V
REF
0.9
V
REF
1.1
V
REF
0.9
V
REF
1.1
V
REF
4.8
-0.1
-64
400
600
0
200
350
1.25
35
50
150
90
0
45
1.25
0.5
30
5
+2
220
450
100
100
250
1.275
2
μ
A
V
V
V
V
V
V
V
μ
A
μ
A
μ
mho
μ
mho
mV
KHz
V
ns
ns
ns
%
%
mA
V
μ
A
PIN DESCRIPTIONS
PIN# PIN SYMBOL
1
2
PIN DESCRIPTION
Reference Voltage.
Non-inverting input to the second error amplifier. In the current sharing mode, it is con-
nected to the programming resistor. In independent 2-channel mode it is connected to
V
REF
pin when Fb2 is connected to the resistor divider to set the output voltage.
Inverting inputs to the error amplifiers. In current sharing mode, Fb1 is connected to a
resistor divider to set the output voltage and Fb2 is connected to programming resistor to
achieve current sharing. In independent 2-channel mode, these pins work as feedback
inputs for each channel.
Supply voltage for the internal blocks of the IC.
Compensation pins for the error amplifiers.
The switching frequency can be programmed between 200KHz and 400KHz by connect-
ing a resistor between Rt and Gnd. By floating the pin, the switching frequency will be
200KHz and by grounding the pin, the switching frequency will be 400KHz.
The internal oscillator may be synchronized to an external clock via this pin.
Supply voltage for the high side output drivers. These are connected to voltages that must
be at least 4V higher than their bus voltages (assuming 5V threshold MOSFET). A mini-
mum of 1
μ
F, high frequency capacitor must be connected from these pins to PGnd to
provide peak drive current capability.
3
21
4
5,6
7
8
9
16
V
REF
Vp2
Fb2
Fb1
Vcc
Comp1, Comp2
Rt
Sync
VcH2
VcH1
SS
IB
PG
FB1L
PG
FB1H
PG
FB2L
PG
FB2H
PG
FB3L
PG
FB3H
V
PG
I
FB1
I
FB2
g
m1
g
m2
V
OS(ERR)2
Freq
V
RAMP
Tr
Tf
T
DB
T
ON
T
OFF
I
LDO
V
FB
LDO
I
LDO(BIAS)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IRU3047 | DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
| IRU3047CW | DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
| IRU3048 | DUAL SYNCHRONOUS PWM CONTROLLER CIRCUITRY AND LDO CONTROLLER |
| IRU3048CF | DUAL SYNCHRONOUS PWM CONTROLLER CIRCUITRY AND LDO CONTROLLER |
| IRU3048CS | DUAL SYNCHRONOUS PWM CONTROLLER CIRCUITRY AND LDO CONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IRU3046CFTR | 功能描述:IC REG CTRLR BUCK PWM VM 24TSSOP 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:75 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.3 V ~ 13.5 V 降壓:是 升壓:是 回掃:是 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:0°C ~ 70°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:管件 產(chǎn)品目錄頁(yè)面:1051 (CN2011-ZH PDF) 其它名稱(chēng):296-2543-5 |
| IRU3046CFTRPBF | 制造商:International Rectifier 功能描述:DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
| IRU3047 | 制造商:IRF 制造商全稱(chēng):International Rectifier 功能描述:DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
| IRU3047CW | 制造商:IRF 制造商全稱(chēng):International Rectifier 功能描述:DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER |
| IRU3047CWTR | 功能描述:IC REG CTRLR BUCK PWM VM 20-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:- 特色產(chǎn)品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 標(biāo)準(zhǔn)包裝:1 系列:PowerWise® PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.5 V ~ 18 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:-5°C ~ 125°C 封裝/外殼:32-WFQFN 裸露焊盤(pán) 包裝:Digi-Reel® 產(chǎn)品目錄頁(yè)面:1303 (CN2011-ZH PDF) 其它名稱(chēng):LM3754SQDKR |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。