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

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
Minimum Operating Supply Voltage 10 V
Maximum Operating Temperature +150 °C
Minimum Operating Temperature -40 °C
Maximum Operating Supply Voltage 20 V
864 In stock for delivery within 4 working days
Price Each (In a Pack of 2)
SGD 4.56
(exc. GST)
SGD 4.88
(inc. GST)
units
Per unit
Per Pack*
2 - 8
SGD4.56
SGD9.12
10 +
SGD4.395
SGD8.79
*price indicative
Packaging Options:
Related Products
The VIPerPlus series of high-voltage converters combine an ...
Description:
The VIPerPlus series of high-voltage converters combine an 800V avalanche-rugged MOSFET, that allows ultra-wide range mains voltage input, with a leading-edge PWM controller. VIPerPlus fixed frequency off-line converters enable SMPS designs meeting the most demanding energy saving regulations with enhanced ...
The VIPerPlus series of high-voltage converters combine an ...
Description:
The VIPerPlus series of high-voltage converters combine an 800V avalanche-rugged MOSFET, that allows ultra-wide range mains voltage input, with a leading-edge PWM controller. VIPerPlus fixed frequency off-line converters enable SMPS designs meeting the most demanding energy saving regulations with enhanced ...
Linear Technology product series of synchronous and non-synchronous ...
Description:
Linear Technology product series of synchronous and non-synchronous internal switching regulator ICs offer high efficiency plus a wide input voltage range and switching frequencies up to 4MHz.The controllers span over several types of configurations from buck (step-down), boost (step-up), buck-boost, ...
Linear Technology presents step-up (boost) switching regulators with ...
Description:
Linear Technology presents step-up (boost) switching regulators with both synchronous and non-synchronous internal switches. The high efficient DC-DC converters have a wide range of input voltages and switching frequencies. Some products feature unique properties that can help increase battery run ...