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PDF ST6850 Data sheet ( Hoja de datos )
| Número de pieza | ST6850 | |
| Descripción | Green-Mode PWM Controller | |
| Fabricantes | Stanson Technology | |
| Logotipo |  |
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Green-Mode PWM Controller
300mA Driving Capability
ST6850
DESCRIPTION
The ST6850 is the current mode PWM controller with green-mode power-saving
operation which can meet the low standby-power needs for low power SMPS. This green-
mode function enables the power supply to easily meet even the strictest power conservation
requirements. The small package provides the high efficiency / low cost solution for SMPS
power applications.
ST6850 is processed by BiCMOS fabrication, that enables reducing the start-up current
and the operating current. ST6850 is available by SOT-23-6L / DIP-8P packages.
PIN CONFIGURATION
SOT-23-6L
DIP-8P
APPLICATIONS
z AC / DC Switching Power Adaptor
z Battery Charger
z PC 5V Standby Power
z Open-Frame Switching Power Supply
PART MARKING
SOT-23-6L
DIP-8P
YYWW
FEATURE
z High-Voltage BiCMOS Process
z Very Low Startup Current( <25u )
z Under Voltage Lockout( UVLO )
z Current Mode Control
z Current Limiting
z Programmable Switching Frequency
z Intermal Slope Compensation
z Green-Mode Control for Power Saving
z Non-audible-noise Green Mode Control
z 300mA Driving Capability
z OVP (Over Voltage Protection) on Vcc
Pin
STANSON TECHNOLOGY
120 Bentley Square, Mountain View, Ca 94040 USA
TEL: (650) 9389294 FAX: (650) 9389295
Page 1
1 page  
Green-Mode PWM Controller
300mA Driving Capability
ST6850
ABSOULTE MAXIMUN RATINGS ( Ta=25 , unless otherwise specified.)
The following ratings designate persistent limits beyond which damage to the device may occur.
Symbol
Vcc
DC Supply Vlotage
Parameter
Value
40
Unit
V
Ccomp/ Rt/ Cs SYNC
-3~7 V
Pd Power Dissipation @ Ta=85 *
0.3 W
Pj Operating Junction Temperature Range
150
Tstg Storage Temperature Range
150
Tlead Lead Soldering Temperaature for 5 sec SOT-23-6L
220
DIP-8P
260
R jc Thermal Resistance Junction-Case(*)
SOT-23-6L
95
/W
DIP-8P
210
(*)The power dissipation and thermal resistance are evaluated under copper board mounted with free air
conditions.
STANSON TECHNOLOGY
120 Bentley Square, Mountain View, Ca 94040 USA
TEL: (650) 9389294 FAX: (650) 9389295
Page 5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet ST6850.PDF ] | |
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