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2AS01 데이터시트 PDF




Infineon Technologies Corporation에서 제조한 전자 부품 2AS01은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

PDF 형식의 2AS01 자료 제공

부품번호 2AS01 기능
기능 ICE2AS01
제조업체 Infineon Technologies Corporation
로고 Infineon Technologies Corporation 로고


2AS01 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




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2AS01 데이터시트, 핀배열, 회로
D a t a s h e e t , V e r s i o n 3 . 0 , F e b r u a r y 2 0 0 2www.DataSheet4U.com
ICE2AS01
ICE2AS01G
ICE2BS01
ICE2BS01G
Off-Line SMPS Current Mode
Controller
Power Management & Supply
Never stop thinking.




2AS01 pdf, 반도체, 판매, 대치품
Preliminary Specification
www.DataSheet4U.com
ICE2AS01/G
ICE2BS01/G
Table of Contents
Page
1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.1 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.2 Pin Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2 Pin Configuration and Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
3 Representative Blockdiagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
4
4.1
4.2
4.2.1
4.2.2
4.3
4.4
4.4.1
4.4.2
4.5
4.5.1
4.5.2
4.6
4.7
4.8
4.8.1
4.8.2
4.8.3
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Power Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Improved Current Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
PWM-OP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
PWM-Comparator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Soft-Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Oscillator and Frequency Reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Frequency Reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Current Limiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Leading Edge Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Propagation Delay Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
PWM-Latch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Protection Unit (Auto Restart Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Overload & Open loop with normal load . . . . . . . . . . . . . . . . . . . . . . . . .12
Overvoltage due to open loop with no load . . . . . . . . . . . . . . . . . . . . . . .13
Thermal Shut Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
5
5.1
5.2
5.3
5.3.1
5.3.2
5.3.3
5.3.4
5.3.5
5.3.6
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Supply Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Internal Voltage Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Control Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Protection Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Current Limiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Driver Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
6 Typical Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . .19
7 Outline Dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Datasheet
Preliminary Data
4
February 2002

4페이지










2AS01 전자부품, 판매, 대치품
www.DataSheet4U.com
Preliminary Specification
ICE2AS01/G
ICE2BS01/G
Functional Description
3 Functional Description
3.1 Power Management
3.2 Improved Current Mode
VCC
M ain Line (100V-380V)
R Start-Up
C VCC
Prim ary W inding
Power Management
U n d e rv o lta g e
Lockout
13.5V
In te rn a l
Bias
8 .5 V
Power-Down
Reset
Power-Up
Reset
V o lta g e
R efe ren c e
6.5V
5.3V
4.8V
4.0V
SoftS
6.5V
R Soft-Start
RQ
PW M-Latch
SQ
Error-Latch
Soft-S tart C om parator
C Soft-Start
T1
E rro r-D e te c tio n
Soft-Start Com parator
FB PW M -Latch
RQ
D rive r
PW M Comparator
SQ
0.8V
PWM OP
x3.65
Im proved
Current Mode
Isense
Figure 4 Current Mode
Current Mode means that the duty cycle is controlled
by the slope of the primary current. This is done by
comparison the FB signal with the amplified current
sense signal.
Am plified Current Signal
Figure 3 Power Management
The Undervoltage Lockout monitors the external
supply voltage VVCC. In case the IC is inactive the
current consumption is max. 55µA. When the SMPS is
plugged to the main line the current through RStart-up
charges the external Capacitor CVCC. When VVCC
exceeds the on-threshold VCCon=13.5V the internal bias
circuit and the voltage reference are switched on. After
it the internal bandgap generates a reference voltage
VREF=6.5V to supply the internal circuits. To avoid
uncontrolled ringing at switch-on a hysteresis is
implemented which means that switch-off is only after
active mode when Vcc falls below 8.5V.
In case of switch-on a Power Up Reset is done by
reseting the internal error-latch in the protection unit.
When VVCC falls below the off-threshold VCCoff=8.5V the
internal reference is switched off and the Power Down
reset let T1 discharging the soft-start capacitor CSoft-Start
at pin SoftS. Thus it is ensured that at every switch-on
the voltage ramp at pin SoftS starts at zero.
FB
0.8V
D rive r
t
Ton
t
Figure 5 Pulse Width Modulation
In case the amplified current sense signal exceeds the
FB signal the on-time Ton of the driver is finished by
reseting the PWM-Latch (see Figure 5).
Datasheet
Preliminary Data
7
February 2002

7페이지


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관련 데이터시트

부품번호상세설명 및 기능제조사
2AS01

ICE2AS01

Infineon Technologies Corporation
Infineon Technologies Corporation

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