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Número de pieza | EM8631 | |
Descripción | PWM Controller | |
Fabricantes | Excelliance MOS | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de EM8631 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
No Preview Available ! Green mode PWM Flyback Controller
EM8631
General Description
EM8631 is a high performance, low startup
current, low cost, current mode PWM controller
with green mode power saving. The EM8631
integrates functions of Soft Start(SS), Under Voltage
Lockout(UVLO), Leading Edge Blanking(LEB),
internal Over Temperature Protection(OTP),
internal slope compensation. The EM8631 also
features more protection like Over Load
Protection(OLP) and Over Voltage Protection(OVP)
to prevent circuit damage occurred under
abnormal conditions.
The EM8631 provides the users a superior
AC/DC power application of high efficiency,
excellent EMI performance, low external
component counts and lower cost solution.
Features
Ultra Low Start Up Current (6uA)
Current Mode Control
Soft Start Function
Built-in Slope Compensation
Internal Leading-edge Blanking
UVLO
Over Voltage Protection (OVP) on VDD pin
Over Load Protection (OLP)
Cycle-by-cycle Current Limit
Feedback Open Protection
Internal Over Temperature Protection (OTP)
Constant Output Power Limit (Full AC Input
Range)
Excellent EMI performance
Ordering Information
Part Number
EM8631J
EM8631S
Package
SOT-23-6
DIP-8
Remark
Typical Application Circuit
Applications
Switching AC/DC Adaptor and charger
Open-Frame SMPS
2013/01/30
Rev.A.6
1
1 page Typical Operating Characteristics
EM8631
Temperature(℃)
Fig1. UVLO (on) vs. Temperature
Temperature(℃)
Fig2. UVLO (off) vs. Temperature
Temperature(℃)
Fig3. Frequency vs. Temperature.
Temperature(℃)
Fig4. Green Mode Frequency vs. Temperature.
Temperature(℃)
Fig5. VCSLIM vs. Temperature.
2013/01/30
Rev.A.6
Temperature(℃)
Fig6. Start Up Current vs. Temperature.
5
5 Page DIP-8
B1
B
e
EM8631
E1
EA
D
Dimension in mm
Dimension A A1 A2 B B1 C D E E1 EA e L
Min. 0.381 3.17
9.01 6.22 7.36 8.5
2.92
Typ. 1.524 0.457 0.254
2.54
Max.
5.334
3.429
10.16 6.53 7.87 9.53
3.81
2013/01/30
Rev.A.6
11
11 Page |
Páginas | Total 11 Páginas | |
PDF Descargar | [ Datasheet EM8631.PDF ] |
Número de pieza | Descripción | Fabricantes |
EM8631 | PWM Controller | Excelliance MOS |
EM8632 | PWM Controller | Excelliance MOS |
EM8633 | PWM Controller | Excelliance MOS |
EM8633L | PWM Controller | Excelliance MOS |
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