LED驱动器, 升压, SEPIC, AEC-Q100, 4输出, 4.75 V至40 V输入, 2 MHz, 150 mA输出, TSSOP-20
The from Products is an integrated, 4-channel, high-brightness LED driver with high-voltage DC to DC controller and battery disconnect in 20 pin TSSOP package. The MAX16813 high-efficiency, high-brightness LED HB LED driver provides four integrated LED current-sink channels. An integrated current-mode switching controller drives a DC to DC converter that provides the necessary voltage to multiple strings of HB LEDs. The wide input range allows powering HB LEDs for small- to medium-sized LCD displays in automotive and general lighting applications. An internal current-mode switching DC to DC controller supports boost or SEPIC topologies and operates in an adjustable frequency range between 200KHz and 2MHz. Current-mode control with programmable slope compensation provides fast response and simplifies loop compensation. An adaptive output-voltage control scheme minimizes power dissipation in the LED current-sink paths.
- .
- Operating voltage range from 4.75V to 40V
- .
- Full scale LED current adjustable from 20mA to 150mA
- .
- Drives 1 to 4 LED strings, 10000:1 PWM dimming at 200Hz
- .
- Boost or SEPIC current mode DC to DC controller
- .
- External switching-frequency synchronization, automotive AEC-Q100 grade-1 qualified
- .
- An integrated spread-spectrum mode helps reduce EMI
- .
- Protection features enhance fault detection and system reliability
- .
- Adaptive output-voltage optimization to minimize power dissipation, less than 2µA shutdown current
- .
- Undervoltage protection, open-drain fault-indicator output, overtemperature protection
- .
- Operating temperature range from -40°C to 125°C, open-LED and LED-short detection and protection
