STR-A6100 Datasheet, PDF (1/2 Pages) Sanken electric – LOW POWER OFF-LINE SMPS PRIMARY SWITCHER

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Series
PRC, Auto Burst Standby, Current-Mode Control
Low Power Off-line SMPS Primary Switcher
Features
˔
PRCʤPulse Ratio Controlʥ: (8µs fixed off-time, variable on-time)
The switching frequency varies within an optimum range of 63kHz to 120kHz, according to load
variations, to create a quasi-jittering, low-EMI noise operation.
˔
Auto burst standby: (No Load Consumption < 100 mW at AC 264V)
Enables very low power consumption at no load.
Typical results of a 5W universal input power supply are 35mW at AC110V and 43mW at AC220V.
˔
Auto bias function
This function stabilizes operation during Auto Burst Standby mode, by preventing a Hiccup mode.
The Auto Bias function forces the IC to turn on before the VCC voltage reaches VCC (OFF), thereby
stabilizing the entire power supply operation.
˔
Integrated startup circuit
600 V BCD process allows direct connection of the STARTUP pin to the rectified high voltage
rail. This reduces component count and improves overall efficiency.
˔
Current mode control
˔
Leading edge blanking
Not required the external Low-pass filter circuit which prevent the malfunction due to the leading
edge spike current.
˔
Avalanche energy guaranteed MOSFET with high V_DSS
The built-in power MOSFET simplifies the surge absorption circuit since the MOSFET guarantees
the avalanche energy.
No VDSS de-rating is required.
˔
Various protecting functions
• Over current protection ------------ pulse by pulse
• Over voltage protection ------------ with latch
• Overload protection ---------------- Auto restart
• Thermal shutdown ------------------ with latch
Package (DIP-8)
Outline (TOP VIEW)
Startup 5
Drain ⁷
Drain 8
4 VFB/OLP
3 GND
2 _VCC
1 S/OCP
Applications
Battery Charger ---------------------- Cell Phone, Digital Still Camera, Camcorder, Shaver, Emergency light, Guidance light, and etc.
Standby Power Supply --------------- Various TV applications, PC, LBP, Audio system and etc.
S.M.P.S. -------------------------------- Ink jet printer, DVD Player/ Recorder, VCR, Set Top Box and etc.
Controller Power Supply ------------ Air conditioner, Refrigerator, Washer, Dish Washer and etc.
Product Lineup
Part Number
STR-A6131
STR-A6132
STR-A6153E
STR-A6151
STR-A6159
STR-A6169
VDSS
500V
650V
800V
RDS(ON)
3.95Ω
2.62Ω
1.90Ω
3.95Ω
6.00Ω
19.20Ω
VIN(AC)
100V/120V
100V/120V
230V/85Vʙ264V
230V/85Vʙ264V
230V/85Vʙ264V
230V/85Vʙ264V
Pout
12W
16W
24W/20W
16W/12W
13W/10W
8W/5W