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

X  

MC33567D-3 bảng dữ liệu(PDF) 4 Page - ON Semiconductor

tên linh kiện MC33567D-3
Giải thích chi tiết về linh kiện  Dual Linear Controller for High Current Voltage Regulation
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  ONSEMI [ON Semiconductor]
Trang chủ  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

MC33567D-3 bảng dữ liệu(HTML) 4 Page - ON Semiconductor

  MC33567D-3 Datasheet HTML 1Page - ON Semiconductor MC33567D-3 Datasheet HTML 2Page - ON Semiconductor MC33567D-3 Datasheet HTML 3Page - ON Semiconductor MC33567D-3 Datasheet HTML 4Page - ON Semiconductor MC33567D-3 Datasheet HTML 5Page - ON Semiconductor MC33567D-3 Datasheet HTML 6Page - ON Semiconductor MC33567D-3 Datasheet HTML 7Page - ON Semiconductor MC33567D-3 Datasheet HTML 8Page - ON Semiconductor MC33567D-3 Datasheet HTML 9Page - ON Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 12 page
background image
MC33567
http://onsemi.com
4
OPERATING DESCRIPTION
Introduction
The MC33567 series is a family of Dual Linear FET
Controllers designed for Power Management applications
where high current, voltage regulation is needed. Some
computer applications include:
1.2 V − Power Supply
1.515 V − AGP (Advanced Graphic Port) and GTL+
(Gunning Transistor Logic − Intel’s electrical bus
technology)
1.818 V − I/O planes on motherboards
2.3 V − Power Supply
2.525 V − Clock and memory
The MC33567 provides tight output voltage regulation,
(Vout), and incorporates individual SHDN controls for each
FET controller and voltage protection by sensing the output
voltage.
Output:
The MC33567 provides tight output voltage regulation
from one or two supply voltages using 2 external N−Channel
MOSFETs. Each controller operates independently and
regulates the output voltage to a predetermined level (1.2 V,
1.515 V 1.818 V, 2.3 V or 2.525 V). In addition, regulator 2
of the MC33567−1 incorporates a Vin bypass mode on which
the external FET is fully enhanced.
Shutdown:
The regulated outputs of the MC33567 can be disabled
with the use of the SHDN pin. It also determines the output
voltage level. SHDN can be controlled externally from
board signals like the AGP or GTL+ as shown in Figure 3.
Figure 3. 1.5 V/3.3 V AGP Card Detection
*Vin while on bypass mode (MC33567−1 only)
1
2
3
4
8
7
6
5
MC33567
DRV2
SENSE2
3.3 V
AGP
Card Type
Detection
AGP
Card
Voltage
Vout or Vin*
12 V (VCC)
3.3 V (Vin)
SHDN2
10 k
W
Listed below are the SHDN threshold voltage levels and
the corresponding regulator output voltages:
1. If the SHDN pin is left open, the output voltage is set
to its regulated value.
2. If a voltage less than 0.8 V is applied to the SHDN pin,
the output voltage is set to 0 V.
3. If a voltage greater than 1.3 V and less than 4.1 V is
applied to the SHDN pin, the output voltage is set to its
regulated voltage.
4. If the SHDN voltage is pulled above 4.1 V, the
MC33567 enters a Vin bypass mode. In this mode, the
MOSFET is fully enhanced and the output voltage is
the MOSFET drain voltage (Vin) minus the MOSFET
drain−source on voltage VDS(on). This feature is only
available on REGULATOR 2 of the MC33567−1.
Table 1 summarizes the output voltage options and its
relationship with VSHDN.
Table 1. Logic Table for SHDN Pin
Device
V SHDN (V)
Vout (V)
MC33567−1
REGULATOR 1
No Connect
t0.8 V
u1.3 V
1.818 V
0 V
1.818 V
REGULATOR 2
No Connect
t0.8 V
1.3 V
t VSHDN t 4.1 V
u 4.1 V
1.515 V
0 V
1.515 V
Vin−VDS(on)
(Bypass
Mode)
MC33567−2
REGULATOR 1 &
REGULATOR 2
No Connect
t0.8 V
u1.3 V
2.525 V
0 V
2.525 V
MC33567−3
REGULATOR 1
No Connect
t0.8 V
u1.3 V
2.3 V
0 V
2.3 V
REGULATOR 2
No Connect
t0.8 V
u 1.3 V
1.2 V
0 V
1.2 V
Undervoltage Detection:
If Vout drops below 75% of the regulated threshold for
greater than 250
µs or a short circuit condition is present, that
output will go into short circuit or Hiccup Mode. While in
Hiccup mode, the output is turned ON for 1.0 ms and OFF
for 40 ms for a duty cycle of 1:41 as shown in Figure 4. This
mode will continue as long as the fault is present. Once the
fault is removed, the regulator will resume normal
operation.
40 ms
1 ms
Figure 4. Hiccup Mode Duty Cycle


Số phần tương tự - MC33567D-3

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
ON Semiconductor
MC33567 ONSEMI-MC33567 Datasheet
3Mb / 4P
   AC-DC Offline Switching Controllers/Regulators
Rev.0, Jun-2005
More results

Mô tả tương tự - MC33567D-3

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Renesas Technology Corp
ISL6557A RENESAS-ISL6557A Datasheet
937Kb / 18P
   Multiphase PWM Controller for CORE Voltage Regulation
logo
Texas Instruments
UCC28710 TI-UCC28710 Datasheet
1Mb / 30P
[Old version datasheet]   Constant-Voltage, Constant-Current Controller With Primary-Side Regulation
UCC28700-Q1 TI-UCC28700-Q1_15 Datasheet
1Mb / 38P
[Old version datasheet]   Constant-Voltage, Constant-Current Controller With Primary-Side Regulation
UCC28703DBVT TI-UCC28703DBVT Datasheet
1Mb / 31P
[Old version datasheet]   Constant-Voltage, Constant-Current Controller With Primary-Side Regulation
logo
Linear Technology
LT3751 LINER-LT3751_15 Datasheet
527Kb / 34P
   High Voltage Capacitor Charger Controller with Regulation
logo
Texas Instruments
UCC28720 TI-UCC28720 Datasheet
1Mb / 29P
[Old version datasheet]   Constant-Voltage, Constant-Current Controller With Primary-Side Regulation
logo
Shenzhen Huazhimei Semi...
HM7152 HMSEMI-HM7152 Datasheet
758Kb / 8P
   Single channel high voltage linear constant current controller
logo
Texas Instruments
UCC28710 TI1-UCC28710_14 Datasheet
1Mb / 32P
[Old version datasheet]   Constant-Voltage, Constant-Current Controller With Primary-Side Regulation
logo
Eutech Microelectronics...
EUP9287 EUTECH-EUP9287 Datasheet
97Kb / 1P
   Constant-Voltage, Constant-Current Controller with Primary-Side Regulation
logo
Texas Instruments
UCC28700 TI1-UCC28700 Datasheet
1Mb / 30P
[Old version datasheet]   Constant-Voltage, Constant-Current Controller With Primary-Side Regulation
More results


Html Pages

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


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