| Application Specific Microcontrollers | 2 | Active | The full-featured
CEC1712 Arm® Cortex®-M4-based microcontroller provides
secure boot with hardware root of trust protection in a pre-boot mode for those
operating systems booting from external SPI flash memory. In addition, the
CEC1712 provides key revocation and code rollback protection during operating
life, enabling in-field security updates. Complying with NIST 800-193 guidelines,
the CEC1712 protects, detects and recovers from corruption for total system
platform firmware resiliency. The secure boot with hardware root of trust is
critical in protecting the system against threats before they can load into the
system and only allows the system to boot using software trusted by the
manufacturer. The CEC1712 secure bootloader loads, decrypts
and authenticates the firmware to run on the CEC1712 from the external SPI
flash. The validated CEC1712 code subsequently authenticates the firmware
stored in SPI flash for the first application processor. Up to two application
processors are supported with two flash components supported for each. In
addition to preventing malicious malware during pre-boot in 5G and data center
operating systems, Microchip’s CEC1712 and Soteria-G2 combination is a security
enabler for connected autonomous vehicle operating systems, automotive Advanced
Driver Assisted Systems (ADAS) and other systems that boot out of external SPI
flash.
CEC1712H-S2-I/SX works with Soteria-G2 firmware to provide secure boot with hardware root of trust protection in a pre-boot mode for operating systems booting from external SPI flash memory. Together, this solution allows designers to speed adoption and implementation of a secure pre-boot and secure firmware update platform. Soteria-G2 firmware simplifies risk reduction during code development by using the CEC1712 immutable secure bootloader, implemented in Read-Only Memory (ROM), as the system root of trust. |
| Integrated Circuits (ICs) | 1 | Active | |
CL2Simple 90V, 20mA, Temperature Compensated, Constant-Current LED Driver IC | LED Drivers | 3 | Active | CL2 is a high voltage, temperature compensated, constant current source. The device is trimmed to provide a constant current of 20mA±10% at an input voltage of 5.0 - 90V. The device can be used as a two terminal constant current source or constant current sink.
A typical application for the CL2 is to drive LEDs with a constant current of 20mA. Multiple CL2s can also be used in parallel to provide higher currents such as 40mA, 60mA or 80mA. The device is available in TO-243AA (SOT-89), TO-252 (D-PAK), and TO-92 packages. |
CL220SIMPLE, 220V, 20mA, Temperature Compensated, Constant Current LED Driver IC | Power Management (PMIC) | 2 | Active | CL220 is a high voltage, temperature-compensated, 20mA constant current regulator. The device operates at up to 220V, and is accurate to ±10% over a 5.0 - 160V range. The device can be used as a two terminal constant current source or constant current sink.
A typical application for the CL220 is to drive LEDs with a constant current of 20mA. Multiple CL220s can also be used in parallel to provide higher currents such as 40mA, 60mA, 80mA, and so on. The device is available in the TO-252 (D-PAK) and TO-220 packages. |
CL3303-Channel 30mA Linear LED Driver | Power Management (PMIC) | 1 | Active | The CL330 is designed to drive 3 strings of LEDs at a constant current of 30mA. Other drivers with currents in the range of 20 - 30mA are available. The drive current is fixed, with a ±6% tolerance over a VOUT range of 4.0 - 15V. Separate enable pins for each channel allow for PWM dimming, 3-step linear dimming, or individual disconnection of faulty LED strings.
Over-temperature protection circuitry shuts down all 3 channels when the nominal die temperature reaches 135°C. Normal operation resumes when the die temperature drops by 30°C.
The CL330 is available in the 8-Lead SOIC (w/Heat Slug) package and requires a single ceramic bypass capacitor which may be shared among several drivers. |
CL525Linear, Fixed Constant Current LED Driver | Integrated Circuits (ICs) | 1 | Active | The CL525 is a fixed, linear current regulator designed for driving LEDs at 25mA. With a maximum rating of 90V, it is able to withstand transients without the need for additional transient protection circuitry. It is ideally suited for applications employing single or multiple LEDs.
The minimum dropout voltage of 1.0V accommodates extra LEDs, permits lower supply voltages, and provides more efficient operation.
The CL525 is offered in TO-252(D-PAK) and TO-92 packages. |
CL6Linear Fixed 100mA Constant Current LED Driver | Power Management (PMIC) | 2 | Active | The CL6 is a fixed, linear current regulator designed for driving high brightness LEDs at 100mA from nominal 12V, 24V, or 48V supplies. With a maximum rating of 90V, it is able to withstand transients without the need for additional transient protection circuitry.
The CL6 is offered in both TO-252 (D-PAK) and TO-220 packages. The tab on the TO-220 is ground, allowing heatsinking directly to a chassis without the need for electrically insulating spacers.
Overtemperature protection shuts off the LED current when the die temperature rises above 135°C (nominal). Full LED current resumes when the die temperature falls below 105°C (nominal). |
CL7Linear 100mA Constant Current LED Driver w/ENABLE | LED Drivers | 1 | Active | The CL7 is a linear fixed current regulator designed for driving high brightness LEDs at 100mA from nominal 12V, 24V, and 48V power supplies. With a maximum rating of 90V, it is able to withstand transients without the need for additional transient protection circuitry. The CL7 is offered in the 8-Lead SOIC package.
An active low enable input (EN) allows logic level control of the LED for on/off control or PWM dimming. The enable input has 100kΩ pull-down resistance. For applications not needing an enable input, refer to the CL6 data sheet.
Over temperature protection shuts off the LED current when the die temperature rises above 135°C (nominal). Full LED current resumes when the die temperature falls below 105°C (nominal). |
CL8801Sequential Linear LED Driver | Power Management (PMIC) | 2 | Active | The CL8801 is designed to drive a long string of inexpensive, low current LEDs directly from the AC mains. A basic driver circuit consists of the CL8801, four resistors, and a bridge rectifier. Two to four additional components are optional for various levels of transient protection. No capacitors, EMI filters, or power factor correction circuits are needed.
A string of series/parallel LEDs is tapped at four locations. Four linear current regulators sink current at each tap and are sequentially turned on and off, tracking the input sine wave voltage. Voltage across each regulator is minimized when conducting, providing high efficiency. Output current at each tap is individually resistor-adjustable. Cross-regulation, as the CL8801 switches from one regulator to the next, provides smooth transitions. The current waveform can be tailored to optimize for input voltage range, line/load regulation, output power/current, efficiency, power factor, THD, dimmer compatibility, and LED utilization.
With the addition of an RC network, the driver is compatible with phase dimming. |
| Power Management (PMIC) | 1 | Active | |
