データシートサーチシステム
  Japanese  ▼
ALLDATASHEET.JP

X  

UC3844D データシート(PDF) 10 Page - Motorola, Inc

部品番号 UC3844D
部品情報  HIGH PERFORMANCE CURRENT MODE CONTROLLERS
Download  14 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
メーカー  MOTOROLA [Motorola, Inc]
ホームページ  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

UC3844D データシート(HTML) 10 Page - Motorola, Inc

Back Button UC3844D Datasheet HTML 6Page - Motorola, Inc UC3844D Datasheet HTML 7Page - Motorola, Inc UC3844D Datasheet HTML 8Page - Motorola, Inc UC3844D Datasheet HTML 9Page - Motorola, Inc UC3844D Datasheet HTML 10Page - Motorola, Inc UC3844D Datasheet HTML 11Page - Motorola, Inc UC3844D Datasheet HTML 12Page - Motorola, Inc UC3844D Datasheet HTML 13Page - Motorola, Inc UC3844D Datasheet HTML 14Page - Motorola, Inc  
Zoom Inzoom in Zoom Outzoom out
 10 / 14 page
background image
UC3844, 45 UC2844, 45
10
MOTOROLA ANALOG IC DEVICE DATA
Figure 19. Adjustable Reduction of Clamp Level
Figure 20. Soft–Start Circuit
Figure 21. Adjustable Buffered Reduction of
Clamp Level with Soft–Start
Figure 22. Current Sensing Power MOSFET
Virtually lossless current sensing can be achieved with the implement of a SENSEFET
power switch. For proper operation during over current conditions, a reduction of the
Ipk(max) clamp level must be implemented. Refer to Figures 19 and 21.
5(9)
R
R
Bias
Osc
8(14)
4(7)
2(3)
1(1)
2R
R
EA
+
+
Q1
RS
3(5)
5(8)
1.0V
R
S
Q
Comp/Latch
5.0Vref
VClamp
Vin
VCC
7(11)
6(10)
+
+
+
+
7(12)
+
R1 R2
R2
VClamp
1.67
+ 1
+ 0.33 x 10–3
Ipk(max) ≈
VClamp
RS
Where: 0
≤ VClamp ≤ 1.0 V
R2
R1
1.0mA
R1
R1 + R2
5(9)
R
R
Bias
Osc
8(14)
4(7)
2(3)
1(1)
2R
R
EA
+
+
1.0V
R
S
Q
5.0Vref
+
+
+
C
tSoft–Start  3600C in µF
1.0mA
5(9)
R
R
Bias
Osc
8(14)
4(7)
2(3)
1(1)
2R
R
EA
+
+
Q1
RS
3(5)
5(8)
1.0V
R
S
Q
Comp/Latch
5.0Vref
VClamp
Vin
VCC
7(11)
6(10)
+
+
+
+
7(12)
+
MPSA63
R1
R2
C
tSoftstart = – In
1 –
VC
R1 R2
C
R2
VClamp
1.67
+ 1
Ipk(max)≈
VClamp
RS
Where: 0
≤ VClamp ≤ 1.0 V
1.0mA
R1
3VClamp
R1 + R2
RS
1/4 W
(5)
(8)
R
S
Q
Comp/Latch
5.0Vref
Vin
VCC
(11)
(10)
+
+
+
+
(12)
+
Power Ground
To Input Source
Return
VPin 5 ≈
If: SENSEFET = MTP10N10M
RS = 200
Then: Vpin 5 = 0.075 Ipk
SENSEFET
RS Ipk rDS(on)
M
G
D
S
K
Control CIrcuitry
Ground:
To Pin (9)
rDM(on) + RS
+ 0.33 x 10–3
R1 R2
R1 + R2
Figure 23. Current Waveform Spike Suppression
The addition of the RC filter will eliminate
instability caused by the leading edge spike on
the current waveform.
Q1
RS
3(5)
5(8)
R
S
Q
Comp/Latch
5.0Vref
Vin
VCC
7(11)
6(10)
+
+
+
+
7(12)
+
R
C
T
T
T
T
T


同様の部品番号 - UC3844D

メーカー部品番号データシート部品情報
logo
ON Semiconductor
UC3844D ONSEMI-UC3844D Datasheet
376Kb / 14P
   HIGH PERFORMANCE CURRENT MODE CONTROLLERS
1996 REV 1
logo
STMicroelectronics
UC3844D STMICROELECTRONICS-UC3844D Datasheet
96Kb / 11P
   CURRENTMODE PWM CONTROLLER
logo
Fairchild Semiconductor
UC3844D FAIRCHILD-UC3844D Datasheet
127Kb / 12P
   SMPS Controller
logo
Texas Instruments
UC3844D TI-UC3844D Datasheet
937Kb / 3P
[Old version datasheet]   Current Mode PWM Controller
logo
ON Semiconductor
UC3844D ONSEMI-UC3844D Datasheet
617Kb / 16P
   High Performance Current Mode Controllers
July, 2006 ??Rev. 7
More results

同様の説明 - UC3844D

メーカー部品番号データシート部品情報
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
ON Semiconductor
UC3842A ONSEMI-UC3842A Datasheet
399Kb / 14P
   HIGH PERFORMANCE CURRENT MODE CONTROLLERS
1996 REV 1
UC3844 ONSEMI-UC3844 Datasheet
376Kb / 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


データシート ダウンロード

Go To PDF Page


リンク URL




プライバシーポリシー
ALLDATASHEET.JP
ALLDATASHEETはお客様のビジネスに役立ちますか?  [ DONATE ] 

Alldatasheetは   |   広告   |   お問い合わせ   |   プライバシーポリシー   |   リンク交換   |   メーカーリスト
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