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

Documentation technique
Législations et de normes
Déclaration de conformité RoHS
Pays d'origine : PH
Détails du produit

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


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

Attribut Valeur
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 Supply Voltage 20 V
Minimum Operating Supply Voltage 10 V
Maximum Operating Temperature +150 °C
Minimum Operating Temperature -40 °C
840 En stock pour livraison sous 1 jour(s)
Prix Each (In a Tube of 40)
(TVA exclue)
(TVA incluse)
Prix par unité
le tube*
40 +
1,888 €
75,52 €
*prix conseillé