STMicroelectronics STCMB1, PWM Controller, 20 V, 75 kHz 20-Pin, SO
- RS Stock No.:
- 175-1735
- Mfr. Part No.:
- STCMB1
- Brand:
- STMicroelectronics
1800 In stock - FREE next working day delivery available
Added
Price Each (In a Tube of 40)
£1.606
(exc. VAT)
£1.927
(inc. VAT)
| Units | Per unit | Per Tube* |
| 40 + | £1.606 | £64.24 |
| *price indicative | ||
- RS Stock No.:
- 175-1735
- Mfr. Part No.:
- STCMB1
- Brand:
- STMicroelectronics
Technical Reference
Legislation and 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
• 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
• 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 |
| Minimum Operating Supply Voltage | 10 V |
| Maximum Operating Temperature | +150 °C |
| Minimum Operating Temperature | -40 °C |
| Maximum Operating Supply Voltage | 20 V |