DC2361A

Analog Devices Inc.
The LT3952A is a current mode step-up DC/DC converter with an internal, 60V, 80m? DMOS power switch. The LT3952A is specifically designed to drive high power LEDs in multiple configurations. It combines input and output current regulation loops with output voltage regulation to operate as a flexible current/voltage source.Programmable switching frequency with optional spread-spectrum modulation provides EMI reduction, while still allowing optimization of the external components for efficiency or component size. The LED current is programmable with an external sense resistor, and can be adjusted from zero to full scale with a voltage at the CTRL pin. The external PWM input provides LED ON/OFF control and 4000:1 dimming ratio, and an internal PWM generator delivers the efficiency of PWM dimming to standalone or I/O limited applications. The LT3952A is available in the thermally enhanced 28-lead TSSOP package.Applications Display Backlighting Automotive and Avionic Lighting Accurate Current-Limited Voltage Regulators
Distributor SKU Stock MOQ 1 10 50 100 1,000 10,000
DigiKey DC2361A-ND 0 $176.55 $176.55 $176.55 $176.55 $176.55 $176.55
Analog Devices Inc DC2361A 0 $176.55 $176.55 $176.55 $176.55 $176.55 $176.55
Mouser Electronics 584-DC2361A 0 1 $182.71 $182.71 $182.71 $182.71 $182.71 $182.71

36V 2A Boost LED Driver with 25,000:1 PWM Dimming

Analog Devices Inc.
Demonstration circuit DC2857A is a 36V 2A synchronous 2MHz boost LED driver featuring the LT3922-1. It drives a single string of LEDs at 330mA up to 34V when VIN is between 7V and 28V. It runs down to 4VIN with reduced ILED and can withstand VIN as high as 36V, but has overvoltage lockout (OVLO) set for 28V for this application. DC2857A runs at 2MHz switching frequency. Spread spectrum frequency modulation (SSFM) can be turned on with a simple jumper, reducing EMI. DC2857A comes with low EMI features including optimized layout, SSFM and input EMI filter. It passes CISPR 25 class 5 conducted and radiated EMI. It is protected against both open and short LED conditions and reports the faults. The LT3922-1 has an input voltage range from 2.8V to 36V. Its internal synchronous 2A 40V switches allow up to 34V of LEDs on the output with room for over voltage protection and overshoot during an open LED event. It has adjustable switching frequency between 200kHz and 2.5MHz. It can be synchronized to an external source or programmed with SSFM for low EMI. The PWMTG highside PWM MOSFET driver assists with short-circuit protection and versatility. LT3922-1 can be configured as a boost, boost-buck, or buck mode LED driver and maintain all of its low EMI, PWM dimming, and fault diagnostic features. The LT3922-1 can be PWM dimmed with an external PWM signal or an internally-generated PWM signal. DC2857A has a jumper that can be set to switch between internallygenerated PWM signal, externally-generated PWM signal, and no PWM signal (100% on). It can be analog dimmed with a control voltage on its control pin (CTRL). When run with both PWM dimming and spread spectrum, the spread spectrum aligns itself with the PWM signal for flicker-free operation. Small ceramic input and output capacitors are used to save space and cost. The board is designed with tiny, high frequency capacitors on both sides of the VOUT pins for a reduction in radiated EMI. The open LED overvoltage protection uses the IC’s constant voltage regulation loop to regulate the output to approximately 37.5V if the LED string is opened, although it may reach almost 40V peak during transient from running LEDs to open. There is a protection diode from LED+ to GND to prevent negative ringing during a short-circuit. The output current can be monitored through the ISMON output pin. Undervoltage and overvoltage lockout can be adjusted on the circuit with a few simple resistor choices. There is an EMI filter on the input of DC2857A. Please follow the recommend layout and four-layer thickness of DC2857A for low EMI applications. The LT3922-1 data sheet gives a complete description of the part, operation and applications information. The LT3922EUFD-1 is assembled in a 28-lead plastic 4mm × 5mm QFN package with a thermally enhanced ground pad. Proper board layout is essential for maximum thermal performance. See the data sheet section Layout Considerations.
Distributor SKU Stock MOQ 1 10 50 100 1,000 10,000
DigiKey 505-DC2857A-ND 0 $200.62 $200.62 $200.62 $200.62 $200.62 $200.62
Analog Devices Inc DC2857A 0 $200.62 $200.62 $200.62 $200.62 $200.62 $200.62
Mouser Electronics 584-DC2857A 0 1 $207.63 $207.63 $207.63 $207.63 $207.63 $207.63

ADN2870ACPZ

Analog Devices Inc.
Laser Drivers 3.3V Dual Loop 50Mbps-3.3Gbps
Distributor SKU Stock MOQ 1 10 50 100 1,000 10,000
DigiKey ADN2870ACPZ-ND 0 46
Arrow North American Components ADN2870ACPZ 0 100
element14 APAC ADN2870ACPZ 5 1 * $13.92 * $12.57 * $12.57 * $10.41 * $9.07 * $9.07
Farnell ADN2870ACPZ 5 1 * $11.82 * $9.98 * $8.83 * $8.38 * $8.38 * $8.38
Mouser Electronics 584-ADN2870ACPZ 0 1
Newark ADN2870ACPZ 5 1 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00

DC1511A-A

Analog Devices Inc.
LIGHTING DEVELOPMENT KITS;
Distributor SKU Stock MOQ 1 10 50 100 1,000 10,000
DigiKey DC1511A-A 0 $76.50 $76.50 $76.50 $76.50 $76.50 $76.50
Analog Devices Inc DC1511A-A 0 $76.50 $76.50 $76.50 $76.50 $76.50 $76.50
element14 APAC DC1511A-A 1 1 * $82.86 * $82.86 * $82.86 * $82.86 * $82.86 * $82.86
Farnell DC1511A-A 1 1 * $78.71 * $78.71 * $78.71 * $78.71 * $78.71 * $78.71
Mouser Electronics DC1511A-A 6 1 $79.18 $79.18 $79.18 $79.18 $79.18 $79.18
Newark DC1511A-A 1 1 $79.90 $79.90 $79.90 $79.90 $79.90 $79.90

DC1666A

Analog Devices Inc.
LED Lighting Development Tools LT3791 4.7V-60V input to drive 25V of LEDs at 2A (scaleable to 100W)
Distributor SKU Stock MOQ 1 10 50 100 1,000 10,000
DigiKey DC1666A 1 $176.55 $176.55 $176.55 $176.55 $176.55 $176.55
Analog Devices Inc DC1666A 0 $176.55 $176.55 $176.55 $176.55 $176.55 $176.55
Arrow North American Components DC1666A 2 1 $196.69 $196.69 $196.69 $196.69 $196.69 $196.69
Mouser Electronics DC1666A 2 1 $182.71 $182.71 $182.71 $182.71 $182.71 $182.71
Verical Marketplace DC1666A 52 1 $200.00 $200.00 $200.00 $200.00 $200.00 $200.00

ADN2871ACPZ

Analog Devices Inc.
The ADN2871 laser diode driver (LDD) is designed for advanced SFP and SFF modules, using SFF-8472 digital diagnostics. The ADN2871 supports operation from 50 Mbps up to 4.25 Gbps.Average power and extinction ratios can be set with a voltage provided by a microcontroller DAC or by a trimmable resistor or digital potentiometer. The average power control loop is implemented using feedback from a monitor photodiode. The device provides bias and modulation current monitoring, as well as fail alarms and automatic laser shutdown (ALS). The device interfaces easily with the Analog Devices, Inc., ADuC7019 and ADuC7020 family of MicroConverter® devices and with the ADN2890, ADN2891, and ADN2892 family of limiting amplifiers to make a complete SFP/SFF transceiver solution. An SFP reference design isavailable.The product is pin-compatible with the ADN2870 dual-loop LDD, allowing the same design to work with either device. For dual-loop control applications, refer to the ADN2870 data sheet. The product is available in a space-saving 4 mm × 4 mm LFCSP specified over the −40°C to +85°C temperature range.Applications 1×/2×/4× Fibre Channel SFP/SFF modules Multirate OC3 to OC48-FEC SFP/SFF modules LX-4 modules DWDM/CWDM SFP modules 1GE SFP/SFF transceiver modules VCSEL, DFB, and FP transmitters
Distributor SKU Stock MOQ 1 10 50 100 1,000 10,000
DigiKey ADN2871ACPZ-ND 1 $6.84 $9.23 $8.80 $7.64 $6.08 $6.08
Arrow North American Components ADN2871ACPZ 0 123 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00
element14 APAC ADN2871ACPZ 0 1 * $10.97 * $9.86 * $8.73 * $8.29 * $8.29 * $8.29
Farnell ADN2871ACPZ 0 1 * $10.28 * $7.59 * $7.59 * $7.22 * $5.51 * $5.51
Mouser Electronics 584-ADN2871ACPZ 0 1 $9.12
Newark ADN2871ACPZ 0 $9.12 $8.19 $6.97 $6.73 $6.73 $6.73
Win Source ADN2871ACPZ 10700 5

DC994A

Analog Devices Inc.
The LT3003 drives three separate strings of LEDs up to 350mA/channel with 3% accurate current matching, resulting in uniform LED brightness and intensity. This approach is superior to conventional methods of running three separate channels with external ballast resistors requiring expensive factory calibration.The LT3003 operates in boost, buck and buck-boost mode. A True Color PWM Dimming ratio of up to 3000:1 is achievable using a logic-level signal at the PWM pin for all modes without the need for external level-shifting circuitry. For applications with input supply above and below the output voltage of the LED strings, the LT3003 allows the LEDs to be returned to the input supply (buck-boost mode) instead of being limited to only SEPIC solutions.The LT3003 is ideal for high power LED driver applications such as TFT LCD backlighting and heads-up displays. Additional overtemperature outputs allow appropriate system management for increased reliability.The LT3003 is available in a small 10-pin MSE package.Applications High Power LED Ballaster Automotive Lighting Video Cameras TFT LCD Backlighting
Distributor SKU Stock MOQ 1 10 50 100 1,000 10,000
DigiKey DC994A 2 1 $75.00 $75.00 $75.00 $75.00 $75.00 $75.00
Analog Devices Inc DC994A 0 $88.28 $88.28 $88.28 $88.28 $88.28 $88.28
Arrow North American Components DC994A 0 1 $75.00 $75.00 $75.00 $75.00 $75.00 $75.00
Mouser Electronics DC994A 0 1
Verical Marketplace DC994A 32 1 $86.96 $82.19 $81.08 $81.08 $81.08 $81.08

DC1315A

Analog Devices Inc.
LED Lighting Development Tools LT3475IFE-1 - Dual Step-Down 1.5A LED Dr
Distributor SKU Stock MOQ 1 10 50 100 1,000 10,000
DigiKey DC1315A 1 1 $100.00 $100.00 $100.00 $100.00 $100.00 $100.00
Analog Devices Inc DC1315A 0 $117.70 $117.70 $117.70 $117.70 $117.70 $117.70
Arrow North American Components DC1315A 2 1 $100.00 $100.00 $100.00 $100.00 $100.00 $100.00
Mouser Electronics DC1315A 0 1 $121.81 $121.81 $121.81 $121.81 $121.81 $121.81
Verical Marketplace DC1315A 2 1 $100.00 $100.00 $100.00 $100.00 $100.00 $100.00

ADN2847ACPZ-32-RL7

Analog Devices Inc.
3.3 V Dual-Loop 50 Mbps to 3.3 Gbps Laser Diode Driver
Distributor SKU Stock MOQ 1 10 50 100 1,000 10,000
DigiKey 2156-ADN2847ACPZ-32-RL7-505-ND 4500 $14.18 $14.18 $14.18 $14.18
Mouser Electronics 584-ADN2847ACPZ32R7 0 1
Win Source ADN2847ACPZ-32-RL7 11900 6

AD9983AKSTZ-170

Analog Devices Inc.
Display Interface IC High Performance 8-Bit Display Interface
Distributor SKU Stock MOQ 1 10 50 100 1,000 10,000
DigiKey AD9983AKSTZ-170 52 $12.47 $11.46 $11.46 $10.99 $8.61 $8.61
Analog Devices Inc AD9983AKSTZ-170 0 $16.23 $14.91 $14.30 $14.30 $14.30 $14.30
Arrow North American Components AD9983AKSTZ-170 0 90 $10.14 $9.82 $7.99
Mouser Electronics AD9983AKSTZ-170 0 1 $12.35
Verical Marketplace AD9983AKSTZ-170 6 1 $12.30 $11.16 $11.16 $10.11 $7.85 $7.85
Win Source AD9983AKSTZ-170 1740 4