U6117 原边5W-12W电源芯片

3 4 5/6 7/8
FB CS Drain GND
n Typical
Application Circuit
(Charger Application)
U6117_VJ11E 2
U6117
Data Sheet
MUlti-Mode Primary Side Regulation (PSR)/QR-Buck CV/CC Power Switch
Power Supply Pin of the Chip Select Buck or Flyback configuration. Leave this pin floating for Flyback PSR control, while tying to GND for QR-Buck control System feedback pin which regulates both the output voltage in CV mode and output current in CC mode based on the flyback voltage of the auxiliary winding Current Sense Input Pin The Power MOSFET Drain The Ground of the IC
U6117SA:175-265VAC:25W(Iout<250MA)& 85-265VAC: 18W(Iout<250MA)
n Package Information
TOP VIEW
U6117D: 175-265VACÿ 25W(Iout <250mA) & 85-265VACÿ 18W(Iout <250mA)
n Electrical Characteristics (TA = 25°C, VDD=18V, if not otherwise noted)
Parameter Supply Voltage Section(VDD Pin) Start-up current into VDD pin Operation Current Standby Current
VDD Under Voltage Lockout Exit VDD Under Voltage Lockout Enter VDD OVP Threshold VDD Zener Clamp Voltage
Symbol
Test Conditions
Min
Typ
Max
Unit
IVDD_ST
IVDD_Op
v
ms mV us ms uA
ICable_max
Current Sense Input Section (CS Pin)
CS Input Leading Edge Blanking Time Current limiting threshold Over Current Detection and Control Delay Flyback or Buck Selection Section (SEL Pin) SEL Pin Floating Voltage Internal SEL Pin Pull up Current VSEL(floating) ISEL (Note 3) (Note 3) 5.7 35 V uA
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U6117
n Description
U6117 is a family of a high performance Primary Side Regulation (PSR) power switch with high precision CV/CC control ideal for charger applications. The IC can also support Quasi-Resonant (QR) Buck constant current topology for LED lighting if SEL pin is short to GND. In CV mode, U6117 adopts Multi Mode Control which uses the hybrid of AM (Amplitude Modulation) mode and (Frequency Modulation) FM mode to improve system efficiency and reliability. In CC mode, the IC uses PFM control with line and load CC compensation. The IC can achieve audio noise free operation and optimized dynamic response. The built-in Cable Drop Compensation (CDC) function can provide excellent CV performance. U6117 integrates functions and protections of Under Voltage Lockout (UVLO), VDD over Voltage Protection (VDD OVP), Cycle-by-cycle Current Limiting (OCP), Short Load Protection (SLP), and VDD Clamping. U6117S,U6117SA and U6117D are available in SOP8 and DIP8 respectively ðl • ðl • ðn ðn ðn ðn ðn ðl •
Data Sheet
MUlti-Mode Primary Side Regulation (PSR)/QR-Buck CV/CC Power Switch
Value
34.5 10 600 -0.3 to 7 -0.7 to 7 85 45 150 -40 to 85 -65 to 150 260 3 250
VFB=3V, VDD=20V
2 1 0.5 15 8 28 I(VDD ) = 7 mA 32.5 16.3 9 30 34.5
20 1.5 1 17.5 10 32 36.5
uA
mA mA V V V V
IVDD_
standby
VDD_ON VDD_OFF VDD_OVP VDD_Clamp
Control Function Section (FB Pin) Internal Error Amplifier (EA) Reference Input VFB_REF
U6117_VJ11E 1
U6117
n Pin Configuration
Pin Number
1 2
Data Sheet
MUlti-Mode Primary Side Regulation (PSR)/QR-Buck CV/CC Power Switch
Pin Name
VDD SEL
Function
ðl • Optimized Dynamic Response for PSR
ðn• VDD UVLO OVP & Clamp
n Applications
• • • Battery Chargers for Cellular Phones AC/DC Power Adapter and LED lightings PSR Applicationÿ U6117S: 230VAC ÿ 8.0W & 85-265VAC ÿ 6W U6117SA:230VAC:12W&85-265VAC:10W U6117D: 230VAC ÿ 15W & 85-265VACÿ 12W • Buck Applicationÿ U6117S: 175-265VACÿ 18W(Iout<180mA) & 85-265VACÿ 10W(Iout <180mA)
(LED Lighting Application)
n Block Diagram
U6117_VJ11E 3
U6117
n Absolute Maximum Ratings
Parameter
VDD DC Supply Voltage VDD DC Clamp Current Drain pin CS, SEL voltage range FB voltage range Package Thermal Resistance (SOP-8) Package Thermal Resistance (DIP-8) Maximum Junction Temperature Operating Temperature Range Storage Temperature Range Lead Temperature (Soldering, 10sec.) ESD Capability, HBM (Human Body Model) ESD Capability, MM (Machine Model) (Note 1)
Data Sheet
VFB_SLP TFB_SHORT VFB_DEM T T
Off_min Off_max
MUlti-Mode Primary Side Regulation (PSR)/QR-Buck CV/CC Power Switch
0.7 10 25 (Note 3) (Note 3) 2 5 63

Data Sheet
MUlti-Mode Primary Side Regulation (PSR)/QR-Buck CV/CC Power Switch
n Features
• • ðn ðn ðl • ðl • ðl • ðl • ðl • Integrated with 600V MOSFET Support Flyback and Buck Topology: Flyback PSR Control (SEL= Floating) QR-Buck CC Control (SEL= GND) Multi Mode PSR Control Audio Noise Free Operation for PSR Low Standby Power <70mW ± 4% CC and CV Regulation Programmable Cable Drop Compensationÿ (CDC) in PSR CV Mode Built-in AC Line & Load CC Compensation Build in Protections: Short Load Protection (SLP) On-Chip Thermal Shutdown (OTP) Cycle-by-Cycle Current Limiting Leading Edge Blanking (LEB) Pin Floating Protection Package: SOP-8 & DIP-8