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參數資料
| 型號： | ISL6440IA-TK |
| 廠商： | INTERSIL CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | 300kHz Dual, 180 Degree Out-of-Phase, Step-Down PWM Controller |
| 中文描述： | 0.4 A DUAL SWITCHING CONTROLLER, 340 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封裝： | 0.150 INCH, PLASTIC, QSOP-24 |
| 文件頁數： | 1/15頁 |
| 文件大小： | 346K |
| 代理商： | ISL6440IA-TK |
1
FN9040.2
ISL6440
300kHz Dual, 180°
Out-of-Phase, Step-
Down PWM Controller
The ISL6440 is a high-performance, dual-output PWM
controller optimized for converting wall adapter, battery or
network intermediate bus DC input supplies into the system
supply voltages required for a wide variety of applications.
Each output is adjustable down to 0.8V. The two PWMs are
synchronized 180
o
out of phase reducing the RMS input
current and ripple voltage.
The ISL6440 incorporates several protection features. An
adjustable overcurrent protection circuit monitors the output
current by sensing the voltage drop across the lower
MOSFET. Hiccup mode overcurrent operation protects the
DC/DC components from damage during output
overload/short circuit conditions. Each PWM has an
independent logic-level shutdown input (SD1 and SD2).
A single PGOOD signal is issued when soft-start is complete
on both PWM controllers and their outputs are within 10% of
the set point. Thermal shutdown circuitry turns off the device
if the junction temperature exceeds +150°C.
Pinout
ISL6440 (QSOP)
TOP VIEW
Features
Wide Input Supply Voltage Range
- 5.6V to 24V
- 4.5V to 5.6V
Two Independently Programmable Output Voltages
Switching Frequency . . . . . . . . . . . . . . . . . . . . . . .300kHz
Out of Phase PWM Controller Operation
- Reduces Required Input Capacitance and Power
Supply Induced Loads
No External Current Sense Resistor
- Uses Lower MOSFET’s r
DS(ON)
Programmable Soft-Start
Extensive Circuit Protection Functions
- PGOOD
- UVLO
- Overcurrent
- Overtemperature
- Independent Shutdown for Both PWMs
Excellent Dynamic Response
- Voltage Feed-Forward with Current Mode Control
Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
Power Supplies with Two Outputs
xDSL Modems/Routers
DSP, ASIC, and FPGA Power Supplies
Set-Top Boxes
Dual Output Supplies for DSP, Memory, Logic,
μ
P Core
and I/O
Telecom Systems
1
2
3
4
5
6
7
8
9
10
11
12
16
17
18
19
20
21
22
23
24
15
14
13
LGATE2
BOOT2
UGATE2
PHASE2
ISEN2
PGOOD
VCC5
SD2
SS2
OCSET2
FB2
VIN
LGATE1
UGATE1
PHASE1
ISEN1
PGND
SS1
OCSET1
FB1
BIAS
BOOT1
SD1
SGND
Ordering Information
PART
NUMBER
PART
MARKING
TEMP.
RANGE
(°C)
PACKAGE
PKG.
DWG. #
ISL6440IA
ISL6440IA
-40 to 85
24 Ld QSOP M24.15
ISL6440IAZ
(See Note)
ISL6440IAZ
-40 to 85
24 Ld QSOP
(Pb-free)
M24.15
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material
sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both SnPb
and Pb-free soldering operations. Intersil Pb-free products are MSL classified
at Pb-free peak reflow temperatures that meet or exceed the Pb-free
requirements of IPC/JEDEC J STD-020.
Add “-T” or “-TK” suffix for tape and reel.
Data Sheet
October 4, 2005
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ISL6440IAZ | 功能描述:電流型 PWM 控制器 DUAL PWM CONTRLR+LIN EAR CONTRLR 300KHZ RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| ISL6440IAZ-T | 功能描述:IC REG CTRLR BUCK PWM CM 24-QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 切換控制器 系列:- 標準包裝:75 系列:- PWM 型:電流模式 輸出數: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 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:0°C ~ 70°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:管件 產品目錄頁面:1051 (CN2011-ZH PDF) 其它名稱:296-2543-5 |
| ISL6440IAZ-T7 | 功能描述:電流型 PWM 控制器 LEAD-FREE DUAL PWM CONTROLLER + LINEAR CONTROLLER, 300KHZ, 1 RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| ISL6440IAZ-TK | 功能描述:IC REG CTRLR BUCK PWM CM 24-QSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 切換控制器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- PWM 型:電流模式 輸出數:1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) |
| ISL6441IR | 功能描述:IC CTRLR SGL/STEP DOWN PWM 28QFN RoHS:否 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 應用說明:Ultrasound Imaging Systems Application Note 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:37 系列:- 應用:醫療用超聲波成像，聲納 電流 - 電源:- 電源電壓:2.37 V ~ 6 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:56-WFQFN 裸露焊盤 供應商設備封裝:56-TQFN-EP（8x8） 包裝:管件 |
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