công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

BA00CC0WCPTR bảng dữ liệu(PDF) 8 Page - Rohm

tên linh kiện BA00CC0WCPTR
Giải thích chi tiết về linh kiện  2A/1A Variable Output
Download  20 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  ROHM [Rohm]
Trang chủ  http://www.rohm.com
Logo ROHM - Rohm

BA00CC0WCPTR bảng dữ liệu(HTML) 8 Page - Rohm

Back Button BA00CC0WCPTR Datasheet HTML 4Page - Rohm BA00CC0WCPTR Datasheet HTML 5Page - Rohm BA00CC0WCPTR Datasheet HTML 6Page - Rohm BA00CC0WCPTR Datasheet HTML 7Page - Rohm BA00CC0WCPTR Datasheet HTML 8Page - Rohm BA00CC0WCPTR Datasheet HTML 9Page - Rohm BA00CC0WCPTR Datasheet HTML 10Page - Rohm BA00CC0WCPTR Datasheet HTML 11Page - Rohm BA00CC0WCPTR Datasheet HTML 12Page - Rohm Next Button
Zoom Inzoom in Zoom Outzoom out
 8 / 20 page
background image
8/22
Datasheet
Datasheet
BD60A00NUX
BD60A60NUX
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ22111・15・001
TSZ02201-0G3G0C200320-1-2
27.SEP.2012 Rev.001
●Protection
Over voltage protection
At such an error of output open as the output DC/DC and the LED is not connected to IC, the DC/DC boosts too much
and the VOUT terminal exceeds the absolute maximum ratings, and may destruct the IC. Therefore, when the VOUT
becomes sensing voltage or higher, the over voltage limit protection works, turns off the switching Tr, DC/DC will be
stopped, and the output voltage goes down slowly. When output voltage becomes below the hysteresis voltage of Over
voltage protection, A boost function works and output voltage reaches detection voltage again.
This operation is repeated unless the abnormalities in application are recovered.
Schottky Diode open protection
In the case of external SBD is not connected to IC, or VOUT is shorted to GND, the coil or internal Tr may be destructed.
Therefore, at such an error as VOUT becoming 0.2V or below, turns off the output Tr, and prevents the coil and the IC
from being destructed.
And the IC changes from activation into non-activation, and current does not flow to the coil (0mA).
Thermal shut down
This IC has thermal shut down function.
The thermal shut down works at 175˚C or higher, and the IC changes from activation into non-activation.
Over Current Protection
Over current flows the current detection resistor that is connected to between internal switching transistor source and
GND. Current sense voltage turns more than detection voltage, over current protection is operating and it is prevented
from flowing more than detection current by reducing ON duty of switching Tr without stopping boost.
As over current detector of This IC is detected peak current, current more than over current setting value does not flow.
< The estimate of the current value which need for the normal operation>
As over current detector of This IC is detected the peak current, it has to estimate peak current to flow to the coil by
operating condition.
In case of,
○ Switching frequency = fsw
Typ.=0.6MHz
○ Supply voltage of coil = VIN
○ Inductance value of coil = L
○ Output voltage = VOUT
○ Total LED current = IOUT
○ Average current of coil = Iave
○ Peak current of coil = Ipeak
○ Efficiency = eff
○ ON time of switching transistor = Ton
Ipeak = (VIN / L) × (1 / fsw) × (1-(VIN / VOUT))
Iave=(VOUT × IOUT / VIN) / eff
Ton=(Iave × (1-VIN/VOUT) × (1/fsw) × (L/VIN) × 2)
1/2
As peak current varies according to whether there is the direct current superposed, the next is decided.
(1-VIN/VOUT) × (1/fsw) < Ton
peak current = Ipeak /2 + Iave (continuous mode CCM)
(1-VIN/VOUT) × (1/fsw) > Ton
peak current = (VIN / L)×Ton (discontinuous mode DCM)
(Example 1)
In case of, VIN=6.0V, L=10µH, fsw=0.6MHz, VOUT=32.5V, IOUT=25mA, current =85%
Ipeak = (6.0V / 10µH) × (1 / 0.6MHz) × (1-(6.0V / 32.5V)) =0.82 A
Iave = (32.5V × 25mA / 6.0V) / 85% = 0.16A
Ton = (0.16A × (1-6.0V / 32.5V) × (1 / 0.75MHz) × (10µH /6.0V) × 2)
1/2 = 0.85µs
(1-VIN/VOUT) × (1/fsw)=1.36µs > Ton
peak current = (6.0V / 10µH)×0.85µs =0.51A
+
-
SW


Số phần tương tự - BA00CC0WCPTR

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Rohm
BA00CC0WCP-E2 ROHM-BA00CC0WCP-E2 Datasheet
498Kb / 20P
   2A/1A Variable Output LDO Regulators
BA00CC0WCP-TR ROHM-BA00CC0WCP-TR Datasheet
498Kb / 20P
   2A/1A Variable Output LDO Regulators
BA00CC0WCP-V5 ROHM-BA00CC0WCP-V5 Datasheet
362Kb / 6P
   1A Low Dropout Voltage Regulator with Shut Down Switch(Adustable Voltage)
BA00CC0WCP-V5 ROHM-BA00CC0WCP-V5 Datasheet
353Kb / 10P
   Standard Variable Output LDO Regulators
BA00CC0WCP-V5 ROHM-BA00CC0WCP-V5 Datasheet
320Kb / 10P
   Standard Variable Output LDO Regulators with Shutdown Switch
More results

Mô tả tương tự - BA00CC0WCPTR

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Rohm
BA00CC0WHFP-TR ROHM-BA00CC0WHFP-TR Datasheet
498Kb / 20P
   2A/1A Variable Output LDO Regulators
BA00DD0W ROHM-BA00DD0W Datasheet
2Mb / 25P
   2A/1A Variable Output LDO Regulators
BD00C0AWFP-E2 ROHM-BD00C0AWFP-E2 Datasheet
827Kb / 21P
   1A Variable Output LDO Regulators
BD00HC0WEFJ ROHM-BD00HC0WEFJ_13 Datasheet
513Kb / 20P
   1A Variable Output LDO Regulator
BD00D0AWHFP ROHM-BD00D0AWHFP_11 Datasheet
357Kb / 12P
   2A Standard Variable Output LDO Regulator
BA033CC0WFP-E2 ROHM-BA033CC0WFP-E2 Datasheet
499Kb / 23P
   2A/1A Fixed Output LDO Regulators
BA50BC0FP-E2 ROHM-BA50BC0FP-E2 Datasheet
512Kb / 19P
   1A Variable/Fixed Output LDO Regulators
BD00C0AWFP ROHM-BD00C0AWFP Datasheet
391Kb / 12P
   1A Standard Variable Output LDO Regulators
BD00IC0WEFJ ROHM-BD00IC0WEFJ Datasheet
517Kb / 26P
   1A Variable Fixed Output LDO Regulators
BA00BC0WFP-E2 ROHM-BA00BC0WFP-E2 Datasheet
512Kb / 19P
   1A Variable/Fixed Output LDO Regulators
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20


bảng dữ liệu tải về

Go To PDF Page


Link URL




Chính sách bảo mật
ALLDATASHEET.VN
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
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