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EM8633 Schematic ( PDF Datasheet ) - Excelliance MOS

Teilenummer EM8633
Beschreibung PWM Controller
Hersteller Excelliance MOS
Logo Excelliance MOS Logo 




Gesamt 12 Seiten
EM8633 Datasheet, Funktion
EM8633
Green mode PWM Flyback Controller with External Over
Temperature Protection
General Description
EM8633 is a high performance, low startup
current, low cost, current mode PWM controller
with green mode power saving. The EM8633
integrates functions of Soft Start(SS), Under Voltage
Lockout(UVLO), Leading Edge Blanking(LEB),
internal and external Over Temperature
Protection(OTP), internal slope compensation. The
EM8633 also features more protection like Over
Load Protection(OLP) and Over Voltage
Protection(OVP) to prevent circuit damage
occurred under abnormal conditions.
The EM8633 provides the users a superior
AC/DC power application of high efficiency,
excellent EMI performance, low external
component counts and lower cost solution.
Ordering Information
Part Number
EM8633J
Package
SOT-23-6
Remark
Typical Application Circuit
Features
Ultra Low Start Up Current (6uA)
Current Mode Control
Soft Start Function
Built-in Slope Compensation
Internal Leading-edge Blanking
Over Voltage Protection (OVP) on VDD pin
Over Load Protection (OLP)
Cycle-by-cycle Current Limit
Feedback Open Protection
External Over Temperature Protection (OTP)
Internal Over Temperature Protection (OTP)
Constant Output Power Limit (Full AC Input
Range)
Internal Frequency Jittering for Excellent
EMI Performance
Gate Voltage Clamping
Applications
Switching AC/DC Adaptor and Charger
Open-Frame SMP
AC
INPUT
EMI
Filter
DC
+ OUTPUT
LATCH
COMP
VDD
EM8633
GATE
CS
GND
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EM8633 Datasheet, Funktion
EM8633
Parameter
Symbol
Test Conditions
Min Typ Max Units
COMP Section
COMP short to GND Current
Open loop COMP Voltage
Green mode COMP Threshold
Voltage
Zero Duty COMP Threshold
Voltage
Zero Duty COMP Hysteresis
Voltage
LATCH Section
ICOMP
VCOMP
VCOMP=0V
COMP pin open
VGreen
VZero
VZero_hy
0.25 0.55 mA
5.2 V
1.8 V
1.1 V
0.1 V
LATCH Pin Source Current
Turn-on Voltage
Turn-off Voltage
LATCH Debounce Time
Protection Section
ILATCH
VLATCH_ON
VLATCH_OFF
TLATCH
95 100 105 uA
1.2 V
1.05 1.10 1.15 V
100 160 220 uS
Open loop Protection Delay Time TDelay
56 76 mS
Gate Clampping Voltage
VGATE VDD=20V
16 V
Open loop Protection COMP Trip
Voltage
VOLP
4.2 V
Internal Temperature Shutdown TSD
160
Note 1.
Note 2.
Note 3.
Note 4.
Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These are for
stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended
periods may remain possibility to affect device reliability.
Devices are ESD sensitive. Handling precaution is recommended.
The device is not guaranteed to function outside its operating conditions.
Guaranteed by design.
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EM8633 pdf, datenblatt
Ordering & Marking Information
Device Name: EM8633J for SOT-23-6
F5ABC
#1
Outline Drawing
F5: Device Code, F5 for EM8633J
ABC: Date Code
EM8633
B1 B
eG
D
AF
b
A1
Dimension in mm
Dimension A A1 B B1 b C D e F G
Min. 0.90 0.00
0.30 0.08
0.30
Typ. 1.15 2.80 1.60
2.90 0.95
0.45
Max.
1.30 0.15
0.50 0.22
1.45 0.60
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12 Page





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