MAX20053AUD/V+ by Analog Devices

2A Synchronous -Buck LED Drivers with Integrated MOSFETs

Status: Active
Series: MAX20053
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The MAX20050–MAX20053 are high-brightness LED (HB LED) drivers for automotive exterior lighting applications. Consisting of a fully synchronous step-down converter with integrated MOSFETs, the devices are capable of driving a series string of LEDs at up to 2A, with a minimum number of external components. The MAX20050/ MAX20052 utilize internal loop compensation to minimize component count, while the MAX20051/MAX20053/MAX20053D use external compensation for full flexibility. The wide 4.5V to 65V input supply range supports extreme automotive cold crank and load-dump conditions. A low- and high-switching frequency option (400kHz or 2.1MHz) provides the designer with the flexibility to optimize for solution size or efficiency, while avoiding interference within the AM band. Spread spectrum provides further options for the designer to reduce EMI at the system level. The MAX20050/MAX20051 have an internal switching frequency of 400kHz, while the MAX20052/MAX20053 have an internal switching frequency of 2.1MHz. In addition, the MAX20051B has spread spectrum disabled. High-side current regulation means only a single connection to the LED string is required; grounding of the string can be done locally. In addition to PWM dimming, the ICs provide analog dimming using the REFI pin. Fullscale current regulation accuracy is ±2.5%, while the accuracy is ±8% at 10% of full-scale over the full temperature range of -40°C to +125°C. A 5V, 10mA LDO output is available for biasing other circuits. Fault-protection mechanisms include output overload, short-circuit, and device overtemperature protection. The devices are specified for operation over the full -40°C to +125°C temperature range and are available in thermally enhanced 12-pin (3mm x 3mm) TDFN and 14-pin (5mm x 4.4mm) TSSOP packages with an exposed pad. Design Solution: Driver Monitoring Systems Need a New Breed of IR-LED Drivers ›

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Prices starting from US$1.71

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Features

Automotive Ready: AEC-Q100 Qualified
Fully Synchronous 2A Step-Down Converter with Integrated 0.14Ω (typ) MOSFETs
Wide 4.5V to 65V Input Supply Range
Two Switching Frequency Options: 400kHz and 2.1MHz
Internal Loop Compensation (MAX20050/MAX20052) and External Loop Compensation (MAX20051/MAX20053/MAX20053D) Options
Switching Frequency Synchronized to PWM Dimming Signal
Active-Low Fault (FLT) Indicator
Output Short-Circuit Protection
High-Side Current Regulation Eliminates One Connection to LED String
Spread-Spectrum Mode Alleviates EMI Problems
Low 200mV Full-Scale High-Side Current-Sense Voltage
REFI Pin Adjusts LED Current Down to Zero
PWM Dimming Disconnects Both High- and Low- Side MOSFET Drivers
5V, 10mA LDO Output Provides Bias to Other Circuits
Ultra-Low Shutdown Current (5µA typ)
Output Overload, Short-Circuit, and Overtemperature Protections
12-Pin (3mm x 3mm) TDFN,14-Pin (5mm x 4.4mm) TSSOP, and 24-pin (4mm x 4mm) TQFN Package Options

Specifications

VIN (V) (min) 4.5
VIN (V) (max) 65
Max. No. of LEDs 15
# LED Channels 1
Regulation Topology Inductor Based
LED Configuration Series
ILED per Channel (A) (max) 2
PWM Dimming Freq. (kHz) (max) 2
Dimming Ratio (max) 1000
Dimming Control AnalogPWM
VCURR_SENSE (mV) 200
POUT (W) 50
ICC (mA) (max) 10
LED String Volt. (V) (max) 60
Switching Frequency (kHz) 2100
Package/Pins TQFN-CU/24TSSOP-CU/14
BudgetaryPrice (See Notes) 1.67

Last 6 months Inventory & Pricing History

MAX20053AUD/V+ Maxim Integrated Parts by Analog Devices

LED DRIVER AEC-Q100 SYNC BUCK TSSOP

LED Lighting Components
> LED Driver ICs
> DC / DC LED Driver ICs
Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Device Topology Synchronous Buck (Step Down)
Input Voltage Min 4.5V
Input Voltage Max 65V
Output Voltage Max -
Output Current Max 2A
Switching Frequency 2.1MHz
No. of Outputs 2Outputs
IC Mounting SMD
Driver Case Style TSSOP
No. of Pins 14Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard AEC-Q100
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History

Alternative Descriptions

2A Synchronous Buck LED Driver | Analog Devices
LED DRIVER, AEC-Q100, SYNC BUCK, TSSOP | Farnell
Led Driver, Aec-Q100, Sync Buck, Tssop | Newark Electronics

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