Cost-Effective 4-Channel Linear LED Current Sinks for Wide Range of LED Lighting Applications Drives One to Four LED Strings 4.75V to 40V Input Voltage Range Full-Scale LED Current Adjustable from 20mA to 150mA 5000:1 PWM Dimming at 200Hz Less than 40µA Shutdown Current |
Drives One to Four LED Strings |
4.75V to 40V Input Voltage Range |
Full-Scale LED Current Adjustable from 20mA to 150mA |
5000:1 PWM Dimming at 200Hz |
Less than 40µA Shutdown Current |
Minimal Component Count Saves Cost and Space Internal MOSFET for Each Channel Internal Current-Mode Switching DC-DC Controller Supporting Boost, Coupled-Inductor Boost-Buck,or SEPIC Topologies 200kHz to 2MHz Programmable Switching Frequency for Optimizing Size vs. Efficiency External Switching-Frequency Synchronization |
Internal MOSFET for Each Channel |
Internal Current-Mode Switching DC-DC Controller Supporting Boost, Coupled-Inductor Boost-Buck,or SEPIC Topologies |
200kHz to 2MHz Programmable Switching Frequency for Optimizing Size vs. Efficiency |
External Switching-Frequency Synchronization |
Protection Features and Wide Operating Temperature Range Improves Reliability Open-Drain Fault-Indicator Output Open-LED and LED-Short Detection and Protection Overtemperature Protection Available in Thermally Enhanced 20-Pin TQFN, QFND, and TSSOP Packages Operation Over -40°C to +125°C Temperature Range |
Open-Drain Fault-Indicator Output |
Open-LED and LED-Short Detection and Protection |
Overtemperature Protection |
Available in Thermally Enhanced 20-Pin TQFN, QFND, and TSSOP Packages |
Operation Over -40°C to +125°C Temperature Range |
VIN (V) (min) | 4.75 |
---|---|
VIN (V) (max) | 40 |
Max. No. of LEDs | 44 |
# LED Channels | 4 |
Regulation Topology | Inductor Based |
LED Configuration | Series-Parallel |
ILED per Channel (A) (max) | 0.15 |
PWM Dimming Freq. (kHz) (max) | 200 |
Dimming Ratio (max) | 5000 |
Dimming Control | PWM |
POUT (W) | 32 |
ICC (mA) (max) | 5 |
LED String Volt. (V) (max) | 40 |
Switching Frequency (kHz) | 2000 |
Package/Pins | QFND/20TQFN/20TSSOP/20 |
BudgetaryPrice (See Notes) | 1.9 |
Device Topology | Boost Buck-Boost SEPIC |
---|---|
Input Voltage Min | 4.75V |
Input Voltage Max | 40V |
Output Voltage Max | 40V |
Output Current Max | 150mA |
Switching Frequency | 2MHz |
No. of Outputs | 4Outputs |
IC Mounting | SMD |
Driver Case Style | TSSOP |
No. of Pins | 20Pins |
Operating Temperature Min | -40°C |
Operating Temperature Max | 125°C |
Product Range | - |
Automotive Qualification Standard | - |
RoHS Phthalates Compliant | To Be Advised |
MSL | MSL 1 - Unlimited |
SVHC | No SVHC (15-Jan-2018) |
Output Current | 2A |
Output Voltage | 40V |
LED DRIVER, BOOST/BUCK, 2MHZ, TSSOP-20 | element14 |
Led Driver, Boost/Buck, 2Mhz, Tssop-20 | Newark Electronics |
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