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

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56,36 kr

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70,44 kr

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RS-artikelnummer:
175-1753
Tillv. art.nr:
STCMB1
Tillverkare / varumärke:
STMicroelectronics
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Brand

STMicroelectronics

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

Maximum Operating Supply Voltage

20 V

Minimum Operating Supply Voltage

10 V

Minimum Operating Temperature

-40 °C

Maximum Operating Temperature

+150 °C

COO (Country of Origin):
PH

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

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