ICE5QSAG 데이터 시트보기 (PDF) - Infineon Technologies
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ICE5QSAG Datasheet PDF : 27 Pages
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Quasi-Resonant Controller
Representative Block Diagram
2
Representative Block Diagram
VIN
VVIN_LOVP
C7a
250 µs
Blanking
time
LOVP
SQ
Input
OVP
Mode
R
Autorestart
Protect
VVIN_BO C16a
VVIN_BI C16b
250 µs
Blanking
time
VCC
ZCD
Brown In / Out
SQ
R
Brown
Out
Mode
Autorestart
Protect
Tj > Tjcon_OTP
Thermal Protection
50 µs
Blanking
time
S
Q
OTP
Mode
R
Tj < Tjcon_OTP-TjHYS_OTP
Autorestart
Protect
D1
VREF
RFB
Burst
Mode
detect
FB
VZCD_CT
C2
Zero Crossing
clk ZC counter
&
G1
Comparator
Power Management
Undervoltage Lockout
16V
10V
Voltage
Reference
Internal
Bias
C8
VVIN_REF
C6
VZCD_OVP
C1
VZCD_RS
tVIN_REF
Up/down counter
Counter
tCOUNT
Counter
PZCD_OVP_B
VVCC_OVP
C12
50us
Soft-start
PWM Control
Ringing
Suppression
VFB_OLP/ C12
VFB_LB
C5
VFB_R
C3
VFB_HLC
C4
VFB_LHC
tFB_OLP_B
Regulation
enOfSSBC
&
1
G5
G4
&
1
G6
G3
C13
Protection
SQ
1
R
G7 Autorestart
Protect
SQ
1
R
G2 Autorestart
Protect
D3
RZCD
TOffMax
&
G9
S
G8
R
Q
TOnMax
VCS_N VCS_BL1
VCS_BL2
Gate Driver
Gate
Drive
Gate
Drive
VFB_EBL1
VFB_EBL2
Burst Mode
Level Select
C9
2pF
VFB_BOn C10
VFB_BOff C11
tFB_BEB
Active
Burst Mode
Active Burst Block
VPWM
V1
C20
PWM
Comparator
GPWM
PWM OP
Current Mode
C15
VCS_FB
Peak
Current
Limit
Leading
Edge
Blanking
tCS_LEB
10kΩ
1pF D2
Delay
tCS_STG_SAM
C17
VCS_STG
Current Limiting/ Current Sense short to Gnd Protection
GATE
SOURCE
CS
GND
Figure 3
Representative Block Diagram
Datasheet
5 of 27
V 2.1
2020-02-03
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