전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

UC3844N 데이터시트(PDF) 3 Page - ON Semiconductor

부품명 UC3844N
상세설명  HIGH PERFORMANCE CURRENT MODE CONTROLLERS
Download  14 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  ONSEMI [ON Semiconductor]
홈페이지  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

UC3844N 데이터시트(HTML) 3 Page - ON Semiconductor

  UC3844N Datasheet HTML 1Page - ON Semiconductor UC3844N Datasheet HTML 2Page - ON Semiconductor UC3844N Datasheet HTML 3Page - ON Semiconductor UC3844N Datasheet HTML 4Page - ON Semiconductor UC3844N Datasheet HTML 5Page - ON Semiconductor UC3844N Datasheet HTML 6Page - ON Semiconductor UC3844N Datasheet HTML 7Page - ON Semiconductor UC3844N Datasheet HTML 8Page - ON Semiconductor UC3844N Datasheet HTML 9Page - ON Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 3 / 14 page
background image
UC3844, 45 UC2844, 45
3
MOTOROLA ANALOG IC DEVICE DATA
ELECTRICAL CHARACTERISTICS (VCC = 15 V, [Note 2], RT = 10 k, CT = 3.3 nF, TA = Tlow to Thigh [Note 3],
unless otherwise noted,)
UC284X
UC384X
Characteristics
Symbol
Min
Typ
Max
Min
Typ
Max
Unit
ERROR AMPLIFIER SECTION
Voltage Feedback Input (VO = 2.5 V)
VFB
2.45
2.5
2.55
2.42
2.5
2.58
V
Input Bias Current (VFB = 2.7 V)
IIB
–0.1
–1.0
–0.1
–2.0
µA
Open Loop Voltage Gain (VO = 2.0 V to 4.0 V)
AVOL
65
90
65
90
dB
Unity Gain Bandwidth (TJ = 25°C)
BW
0.7
1.0
0.7
1.0
MHz
Power Supply Rejection Ratio (VCC = 12 V to 25 V)
PSRR
60
70
60
70
dB
Output Current
Sink (VO = 1.1 V, VFB = 2.7 V)
Source (VO = 5.0 V, VFB = 2.3 V)
ISink
ISource
2.0
–0.5
12
–1.0
2.0
–0.5
12
–1.0
mA
Output Voltage Swing
High State (RL = 15 k to ground, VFB = 2.3 V)
Low State (RL = 15 k to Vref, VFB = 2.7 V)
VOH
VOL
5.0
6.2
0.8
1.1
5.0
6.2
0.8
1.1
V
CURRENT SENSE SECTION
Current Sense Input Voltage Gain (Notes 4 & 5)
AV
2.85
3.0
3.15
2.85
3.0
3.15
V/V
Maximum Current Sense Input Threshold (Note 4)
Vth
0.9
1.0
1.1
0.9
1.0
1.1
V
Power Supply Rejection Ratio
VCC = 12 V to 25 V (Note 4)
PSRR
70
70
dB
Input Bias Current
IIB
–2.0
–10
–2.0
–10
µA
Propagation Delay (Current Sense Input to Output)
tPLH(IN/OUT)
150
300
150
300
ns
OUTPUT SECTION
Output Voltage
Low State (ISink = 20 mA)
(ISink = 200 mA)
High State (ISink = 20 mA)
(ISink = 200 mA)
VOL
VOH
12
12
0.1
1.6
13.5
13.4
0.4
2.2
13
12
0.1
1.6
13.5
13.4
0.4
2.2
V
Output Voltage with UVLO Activated
VCC = 6.0 V, ISink = 1.0 mA
VOL(UVLO)
0.1
1.1
0.1
1.1
V
Output Voltage Rise Time (CL = 1.0 nF, TJ = 25°C)
tr
50
150
50
150
ns
Output Voltage Fall Time (CL = 1.0 nF, TJ = 25°C)
tf
50
150
50
150
ns
UNDERVOLTAGE LOCKOUT SECTION
Startup Threshold
UCX844
UCX845
Vth
15
7.8
16
8.4
17
9.0
14.5
7.8
16
8.4
17.5
9.0
V
Minimum Operating Voltage After Turn–On
UCX844
UCX845
VCC(min)
9.0
7.0
10
7.6
11
8.2
8.5
7.0
10
7.6
11.5
8.2
V
PWM SECTION
Duty Cycle
Maximum
Minimum
DCmax
DCmin
46
48
50
0
47
48
50
0
%
TOTAL DEVICE
Power Supply Current (Note 2)
Startup:
(VCC = 6.5 V for UCX845A,
(VCC 14 V for UCX844) Operating
ICC
0.5
12
1.0
17
0.5
12
1.0
17
mA
Power Supply Zener Voltage (ICC = 25 mA)
VZ
30
36
30
36
V
NOTES: 2. Adjust VCC above the Startup threshold before setting to 15 V.
3. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible
Tlow = –20°C for UC3844, UC3845
Thigh = +70°C for UC3844, UC3845
Tlow = –25°C for UC2844, UC2845
Thigh = +85°C for UC2844, UC2845
4. This parameter is measured at the latch trip point with VFB = 0 V.
5. Comparator gain is defined as: AV
∆V Output Compensation
∆V Current Sense Input


유사한 부품 번호 - UC3844N

제조업체부품명데이터시트상세설명
logo
Motorola, Inc
UC3844N MOTOROLA-UC3844N Datasheet
376Kb / 14P
   HIGH PERFORMANCE CURRENT MODE CONTROLLERS
logo
STMicroelectronics
UC3844N STMICROELECTRONICS-UC3844N Datasheet
96Kb / 11P
   CURRENTMODE PWM CONTROLLER
logo
Fairchild Semiconductor
UC3844N FAIRCHILD-UC3844N Datasheet
127Kb / 12P
   SMPS Controller
logo
Texas Instruments
UC3844N TI-UC3844N Datasheet
937Kb / 3P
[Old version datasheet]   Current Mode PWM Controller
logo
ON Semiconductor
UC3844N ONSEMI-UC3844N Datasheet
617Kb / 16P
   High Performance Current Mode Controllers
July, 2006 ??Rev. 7
More results

유사한 설명 - UC3844N

제조업체부품명데이터시트상세설명
logo
Motorola, Inc
UC3842B MOTOROLA-UC3842B Datasheet
401Kb / 16P
   HIGH PERFORMANCE CURRENT MODE CONTROLLERS
logo
Freescale Semiconductor...
MC34129EF FREESCALE-MC34129EF Datasheet
444Kb / 16P
   high performance current mode controllers
logo
ON Semiconductor
UC3844BNG ONSEMI-UC3844BNG Datasheet
399Kb / 19P
   High Performance Current Mode Controllers
August, 2013 ??Rev. 11
UC3845BDR2G ONSEMI-UC3845BDR2G Datasheet
387Kb / 19P
   High Performance Current Mode Controllers
December, 2012 ??Rev. 11
UC3845BVDG ONSEMI-UC3845BVDG Datasheet
399Kb / 19P
   High Performance Current Mode Controllers
August, 2013 ??Rev. 11
UC3845BVDR2G ONSEMI-UC3845BVDR2G Datasheet
399Kb / 19P
   High Performance Current Mode Controllers
August, 2013 ??Rev. 11
UC3844BVDG ONSEMI-UC3844BVDG Datasheet
399Kb / 19P
   High Performance Current Mode Controllers
August, 2013 ??Rev. 11
logo
Unisonic Technologies
UC3842B UTC-UC3842B_08 Datasheet
518Kb / 11P
   HIGH PERFORMANCE CURRENT MODE CONTROLLERS
logo
Motorola, Inc
UC3844 MOTOROLA-UC3844 Datasheet
376Kb / 14P
   HIGH PERFORMANCE CURRENT MODE CONTROLLERS
logo
ON Semiconductor
UC3842A ONSEMI-UC3842A Datasheet
399Kb / 14P
   HIGH PERFORMANCE CURRENT MODE CONTROLLERS
1996 REV 1
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14


데이터시트 다운로드

Go To PDF Page


링크 URL




개인정보취급방침
ALLDATASHEET.CO.KR
ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크교환   |   제조사별 검색
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com