STMicroelectronics STCMB1, Power Factor & PWM Controller, 20 V, 75 kHz 20-Pin, SO

Product overview and Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): PH
Product Details

The STCMB1 device embodies a transition mode (TM) PFC, a high voltage double-ended controller for LLC resonant half-bridge, an 800 V-rated high voltage section and the glue logic that supervises the operation of these three blocks. The PFC section uses a proprietary constant on-time control methodology that does not require a sinusoidal input reference, thereby reducing the system cost and external component count.

800 V high voltage start-up with integrated
Active input filter capacitor discharge circuitry for reduced standby power
Independent debug mode for both converters
Enhanced constant on-time PFC with input voltage feedforward, THD optimizer
Complete set of protections: ac brown-in/out, inrush control, OVP, OCP, inductor saturation, feedback disconnection
Half-bridge operation up to 750 kHz with self-adjusting deadtime
(HSP) function for anti-capacitive mode
Synchronous burst mode operation

Attribute Value
Maximum Switching Frequency 75 kHz
Start-up Supply Current 100µA
Maximum Source Current 5mA
Maximum Sink Current 100mA
Maximum Supply Current 6 mA
Number of Outputs 1
Mounting Type Surface Mount
Package Type SO
Pin Count 20
Dimensions 13 x 7.6 x 2.35mm
Length 13mm
Width 7.6mm
Height 2.35
Maximum Operating Temperature +150 °C
Maximum Operating Supply Voltage 20 V
Minimum Operating Supply Voltage 10 V
Minimum Operating Temperature -40 °C
880 In stock for delivery within 3 working days
Price Each (In a Tube of 40)
HK$ 20.62
(exc. GST)
Per unit
Per Tube*
40 - 40
80 - 160
200 +
*price indicative
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