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

STMicroelectronics PWM Controller

The STMicroelectronics STCMB1 family is a 20V, 75kHz surface mount 20 pins PWM controller. This device is a transition mode (TM) PFC, a high voltage double-ended controller. It has an electrical rating of 800V with 6mA current. 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.

Features and Benefits

• Enhanced constant on-time PFC with input voltage feedforward, THD optimizer
• Half-bridge operation up to 750kHz with self-adjusting dead time
• Independent debug mode for both the converters
• It has a complete set of protection such as dc brown-out, two-level OCP, hard switching prevention (HSP) function for anti-capacitive mode protection and safe start-up
• It is LLC resonant combo controller
• Operation temperature ranges between -40°C and 85°C
• Proprietary time shift control for improved input ripple rejection and dynamic response
• Synchronous burst mode operation with PFC enhances light-load efficiency

Applications

• AC-DC adaptors
• LED street lighting
• SMPS for LED TVs

Specifications
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 2.35mm
Maximum Operating Temperature +150 °C
Maximum Operating Supply Voltage 20 V
Minimum Operating Temperature -40 °C
Minimum Operating Supply Voltage 10 V
864 In stock for delivery within 3 working days
Price Each (In a Pack of 2)
Was HK$33.19
HK$ 24.945
(exc. GST)
units
Per unit
Per Pack*
2 - 8
HK$24.945
HK$49.89
10 +
HK$24.315
HK$48.63
*price indicative
Packaging Options:
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