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SSC3S910

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Package : SOP18

RoHS : YES

Data Sheet(882KB)
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The SSC3S910 is a controller with SMZ* method for LLC current resonant switching power supplies, incorporating a floating drive circuit for a high-side power MOSFET. The product includes useful functions such as the Standby Function, the Overload Protection with input voltage compensation, the Automatic Dead Time Adjustment, and the Capacitive Mode Detection. The product achieves high efficiency, low noise and high cost-performance power supply systems with few external components.
*SMZ: Soft-switched Multi-resonant Zero Current switch, achieved soft switching operation during all switching periods.

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Design Support

  • Technical Documents

Technical Documents

Features

    ・ Standby Mode Change Function
    　- Output Power at Light Load: Po = 125 mW
    　(PIN = 0.27 W, as a reference with discharge resistor of
    　1MΩ for across the line capacitor)
    　- Burst operation in standby mode
    　- Soft-on/Soft-off function: reduces audible noise
    ・ Realizing power supply with universal mains input
    　voltage
    ・ Soft-start Function
    ・ Capacitive Mode Detection Function
    ・ Reset Detection Function
    ・ Automatic Dead Time Adjustment Function
    ・ Built-in Startup Circuit
    ・ Input Electrolytic Capacitor Discharge Function
    ・ Protections
    　- Brown-In and Brown-Out Function: Auto-restart
    　- High-side Driver UVLO: Auto-restart
    　- Overcurrent Protection (OCP): Auto-restart,
    　　peak drain current detection, 2-step detection
    　- Overload Protection (OLP) with Input Voltage
    　　Compensation: Auto-restart
    　- Overvoltage Protection (OVP): Auto-restart
    　- Thermal Shutdown (TSD): Auto-restart

Application

Switching power supplies for electronic devices such as:
・Digital appliances
・Office automation (OA) equipment
・Industrial apparatus
・Communication facilities

Specifications

Control Method Current Resonant
Type Controller
Output Current
RDS(ON) (max.)
VDSS (min.)
VCC (max.) 35 V
Oscillating Frequency(typ.) 32 to 300 kHz
OCP YES
OLP Auto Restart
OVP Auto Restart
Brown-in / out YES
TSD Auto Restart
Power Consumption at No Load
Package Weight (Typ.) 0.27 g
Automotive Qualified NO

Typical Application

Typical Application

Block Diagram

Block Diagram

Pin Configuration Definitions

Pin Configuration Definitions

Questions or Comments?

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