音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

UC3842AN Datasheet

  • UC3842AN

  • HIGH PERFORMANCE CURRENT MODE CONTROLLERS

  • 403.43KB

  • 14頁

  • MOTOROLA   MOTOROLA

掃碼查看芯片數(shù)據(jù)手冊(cè)

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

Order this document by UC3842A/D
UC3842A, 43A
UC2842A, 43A
High Performance
Current Mode Controllers
The UC3842A, UC3843A series of high performance fixed frequency
current mode controllers are specifically designed for off鈥搇ine and dc鈥搕o鈥揹c
converter applications offering the designer a cost effective solution with
minimal external components. These integrated circuits feature a trimmed
oscillator for precise duty cycle control, a temperature compensated
reference, high gain error amplifier, current sensing comparator, and a high
current totem pole output ideally suited for driving a power MOSFET.
Also included are protective features consisting of input and reference
undervoltage lockouts each with hysteresis, cycle鈥揵y鈥揷ycle current limiting,
programmable output deadtime, and a latch for single pulse metering.
These devices are available in an 8鈥損in dual鈥搃n鈥搇ine plastic package as
well as the 14鈥損in plastic surface mount (SO鈥?4). The SO鈥?4 package has
separate power and ground pins for the totem pole output stage.
The UCX842A has UYLO thresholds of 16 V (on) and 10 V (off), ideally
suited for off鈥搇ine converters. The UCX843A is tailored for lower voltage
applications having UVLO thresholds of 8.5 V (on) and 7.6 V (off).
鈥?/div>
Trimmed Oscillator Discharge Current for Precise Duty Cycle Control
HIGH PERFORMANCE
CURRENT MODE
CONTROLLERS
N SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751A
(SO鈥?4)
14
1
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Current Mode Operation to 500 kHz
Automatic Feed Forward Compensation
Latching PWM for Cycle鈥揃y鈥揅ycle Current Limiting
Internally Trimmed Reference with Undervoltage Lockout
High Current Totem Pole Output
Undervoltage Lockout with Hysteresis
Low Startup and Operating Current
Direct Interface with Motorola SENSEFET Products
PIN CONNECTIONS
Compensation 1
Voltage Feedback 2
Current Sense 3
RT/CT 4
(Top View)
8
7
6
5
Vref
VCC
Output
Gnd
Compensation
NC
Voltage Feedback
NC
Current Sense
1
2
3
4
5
6
7
(Top View)
14 Vref
13 NC
12 VCC
11 VC
10 Output
9
8
Gnd
Power Ground
Simplified Block Diagram
VCC
Vref
8(14)
R
R
RTCT
4(7)
Voltage
Feedback
Input
2(3)
Output
Compensation
1(1)
+
鈥?/div>
NC
RT/CT
7(12)
5.0V
Reference
Vref
Undervoltage
Lockout
Oscillator
Latching
PWM
Error
Amplifier
VCC
Undervoltage
Lockout
VC
7(11)
Output
6(10)
Power
Ground
5(8)
Current
Sense
3(5) Input
ORDERING INFORMATION
Device
UC3842AD
UC3843AD
UC3842AN
UC3843AN
UC2842AD
UC2843AD
UC2842AN
UC2843AN
漏
Motorola, Inc. 1996
Operating
Temperature Range
Package
SO鈥?4
TA = 0擄 to +70擄C
SO鈥?4
Plastic
Plastic
SO鈥?4
Gnd
5(9)
TA = 鈥?25擄 to +85擄C
SO鈥?4
Plastic
Plastic
Rev 1
Pin numbers in parenthesis are for the D suffix SO鈥?4 package.
MOTOROLA ANALOG IC DEVICE DATA
1

UC3842AN 產(chǎn)品屬性

  • 1,000

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - DC DC 切換控制器

  • -

  • 電流模式

  • 1

  • 500kHz

  • 96%

  • 10 V ~ 30 V

  • 無

  • 無

  • 是

  • 無

  • 無

  • 無

  • 無

  • 是

  • 0°C ~ 70°C

  • 8-DIP（0.300"，7.62mm）

  • 管件

  • UC3842ANOS

UC3842AN相關(guān)型號(hào)PDF文件下載

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時(shí)間周一至周五
9:00-17:30

關(guān)注官方微信號(hào)，
第一時(shí)間獲取資訊。

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務(wù)的動(dòng)力！意見一經(jīng)采納，將有感恩紅包奉上哦！