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APW38HC43AKI-TR 参数 Datasheet PDF下载

APW38HC43AKI-TR图片预览
型号: APW38HC43AKI-TR
PDF下载: 下载PDF文件 查看货源
内容描述: CMOS电流模式PWM电压控制器 [CMOS Current-Mode PWM Voltage Controller]
分类和应用: 控制器
文件页数/大小: 11 页 / 137 K
品牌: ANPEC [ ANPEC ELECTRONICS COROPRATION ]
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APW38HC42A/3A/4A/5A
CMOS Current-Mode PWM Voltage Controller
Features
Ultralow start-up current (25µA typical)
Low operating current (2mA typical)
Fast output rise/fall times :
General Description
The APW38HC4XA family are fixed frequency, high
performance, current-mode PWM controller with 1.2
A drive current capability. Undervoltage lockout cir-
cuitry allows the APW38HC42A and APW38HC44A
versions to start up at 14.5V and operate down to
9V, and the APW38HC43A and APW38HC45A ver-
sions start at 8.4V with operateion down to 7.6V. All
versions operate up to 24V. The ultra low start-up
current 25µA (typical), and operating current 2mA
(typical) have been designed to improve the converter
efficiency. High output driving capability up to 1.2A
ensures the fast switching to minimize the switching
losses. The APW38HC4XA features a trimmed and
temperature compensated oscillator discharge cur-
rent and bandgap reference. APW38HC4XA is avail-
able in both 8-pin plastic DIP and SOP packages.
15ns rise/10ns fall
High output drive (1.2A peak current)
CMOS outputs with rail-to-rail swing
Current-mode operation up to 1MHz
Trimmed 5V bandgap reference
Pin-to-pin compatible with MIC38HC4X
Trimmed oscillator discharge current
UVLO with hysteresis
Low cross-conduction currents
Applications
Current-mode , Off-line , Switched-mode Power
Supplies
Current-mode , DC-to-DC converters
Various converters ( step-down, step-up, flyback
, forward, and synchronous FET)
Pin Description
COMP
FB
ISNS
RT/CT
1
2
3
4
8
7
6
5
VREF
VDD
OUT
GND
Ordering and Marking Information
APW 38HC4XA
Lead Free Code
Handling Code
Temp. Range
Package Code
Package Code
J : DIP - 8
K : SOP-8
Temp. Range
C : 0 to 70
°
C
I : -40 to 85
°
C
Handling Code
TU : Tube
TR : Tape & Reel
Lead Free Code
L : Lead Free Device
Blank : Original Device
X - 2/3/4/5
XXXXX - Date Code
APW 384XA J :
APW 38HC4XA
XXXXX
APW 38HC4XA
X - 2/3/4/5
XXXXX - Date Code
APW 384XA K :
XXXXX
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
Copyright
ANPEC Electronics Corp.
Rev. A.7 - Jan., 2003
1
www.anpec.com.tw