Skip to main content Skip to first level navigation

RICOH imagine. change.

RICOH ELECTRONIC DEVICES CO., LTD.

Skip to main content First level navigation Menu
ricoh.com
Main content

LED Driver Controller R1580 Series

Product Specifications

The R1580 is a 34-V constant-current LED driver controller. Internally, this device consists of a linear dimming controller using a PWM input signal, a thermal shutdown circuit (TSD), and an undervoltage lockout circuit (UVLO) in addition to the basic constant-current control circuits. A flicker-free wide-dimming constant-current LED driver can be configured by only adding an Nch MOSFET, a current sensing resistor and capacitors to the R1580. The FET to control current flow is placed externally, so that the R1580 will not give any influence on the current range capable of dealing with. The R1580 is linear dimmable with using a PWM signal on the DIM pin. The R1580 is capable of performing a constant-current control corresponding to the different PWM duty cycles. The R1580N002A is linear dimmable as low as 0.5% PWM duty cycle and the R1580N001A/ R1580N003A is linear dimmable as low as 1% PWM duty cycle. Unlike other LED drivers with PWM dimming, the R1580 can provide a smooth flicker-free dimming operation using linear dimming.

FEATURES

  Consumer Industrial Automotive
Input Voltage Range (Max. Rating) 3.6 V ~ 34.0 V (36.0 V)
Operating Temperature Range -40°C ~ 85°C -40°C ~ 105°C
Supply Current Typ. 320 µA
Standby Current Typ. 140 µA (R1580N001A/ R1580N002A)
Typ. 28 µA (1580N003A)
Line Regulation Typ. 0.01%/V
SOURCE Pin Voltage Temperature Coefficient (100% PWM Duty) Typ. ±100 ppm/°C
Thermal Shutdown Protection Thermal Shutdown Temperature: Typ. 160°C
Control Type Linear Dimmable Using a PWM Signal
Package SOT-23-6

TYPICAL APPLICATION

R1580NxxxA

TYPICAL CHARACTERISTICS

Comparison of Digital Image

PWM Dimming

Linear Dimming (R1580)

PIN DESCRIPTION

SOT-23-62.9 mm × 2.8 mm

SOT-23-6

1 ISET
2 SOURCE
3 GATE
4 VIN
5 GND
6 DIM

R1580 Series for Consumer

APPLICATIONS

*
  • General LED Lighting: Down-lights, Base-lights, Ceiling Lights, Exterior Lights
  • Industrial LED Lighting: Image Recognition Devices
  • Stage Lighting and Signage
  • Sports Facility Lighting
  • Ultraviolet (UV) and Infrared (IR) Irradiation Devices
  • Scanners and Handy Terminals
  • Amusement Machines
  • Other Electronic Devices

*

PRODUCT LONGEVITY PROGRAM

R1580 series operate PRODUCT LONGEVITY PROGRAM.
This program has been introduced to help customers select the most appropriate part for applications that require long life cycles.


SELECTION GUIDE

The interface of the DIM pin and the voltage level of the ISET pin are user-selectable options.

Product Name   Package Quantity per Reel
R1580NxxxA-TR-FE ConsumterPLP SOT-23-6 3,000
  • xxx … Specify the interface of the DIM pin and the voltage level of the ISET pin.
  ISET Pin Voltage DIM Pin Interface
001 0.4 V Comparator Input
002 0.8 V Comparator Input
003 0.4 V Inverter Input

DOCUMENT/CONTACT

Package*1 Marking Reliability*2
SOT-23-6 R1580N R1580N (-FE)

*1: The package file includes package dimensions, taping specifications, taping reels dimensions, and power dissipations.
*2: Reliability file includes a reliability test report and a reflow profile.


R1580 Series for Industrial

This product is a high-reliability semiconductor device for industrial application that has passed both the screening at high temperature and the reliability test with extended hours. Ricoh accommodates requests including the long-time operation and high temperature environment use.


*

APPLICATIONS

  • LED Lightings for Industrial Equipment
  • LED Lightings for Inspection Devices

*

PRODUCT LONGEVITY PROGRAM

R1580 series operate PRODUCT LONGEVITY PROGRAM.
This program has been introduced to help customers select the most appropriate part for applications that require long life cycles.


Operating Temperature Range : -40°C to 105°C


Tjmax 150°C

Unlike the rating of the products for consumer applications at Tjmax = 125°C, the products for industrial applications are rated at high temperature of Tjmax = 150°C. The power dissipation is also rated at high temperature.


SELECTION GUIDE

The interface of the DIM pin and the voltage level of the ISET pin are user-selectable options.

Product Name   Package Quantity per Reel
R1580NxxxA-TR-YE IndustrialPLP SOT-23-6 3,000
  • xxx … Specify the interface of the DIM pin and the voltage level of the ISET pin.
  ISET Pin Voltage DIM Pin Interface
001 0.4 V Comparator Input
002 0.8 V Comparator Input
003 0.4 V Inverter Input

DOCUMENT/CONTACT

Package*1 Reliability*2
SOT-23-6 R1580N (-YE)

*1: The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and land pattern (foot pattern).
*2: Reliability file includes a reliability test report and a reflow profile.


R1580 Series for Automotive

Ricoh is committed to providing a semiconductor device with the highest level of quality and reliability by restricting the device manufacturing only within Ricoh and the cooperative companies successfully passed our stringent inspections for automotive products. Ricoh established a traceability system and manages manufacturing information and logistics information from the warehouse.


Quality Ranks for Applications

Ricoh offers three different quality ranks for automotive products according to their application purposes.
R1580 Series offer products in Rank 3.

*

Rank 3: Automotive Accessories

  • LED headlights
  • Auxiliary lights for on-vehicle cameras
  • Dimmable LED for vehicle interiors
  • Power source for car accessories such as car audio equipment, car navigation system, and ETC system

*

PRODUCT LONGEVITY PROGRAM

R1580 series operate PRODUCT LONGEVITY PROGRAM.
This program has been introduced to help customers select the most appropriate part for applications that require long life cycles.


Operating Temperature Range : -40°C to 105°C


Tjmax 150°C

Unlike the rating of the products for consumer applications at Tjmax = 125°C, the products for automotive applications are rated at high temperature of Tjmax = 150°C. The power dissipation is also rated at high temperature.


SELECTION GUIDE

The interface of the DIM pin and the voltage level of the ISET pin are user-selectable options.

Product Name   Package Quantity per Reel
R1580NxxxA-TR-AE AutomotiveAutomotive AccessoriesPLP SOT-23-6 3,000
  • xxx … Specify the interface of the DIM pin and the voltage level of the ISET pin.
  ISET Pin Voltage DIM Pin Interface
001 0.4 V Comparator Input
002 0.8 V Comparator Input
003 0.4 V Inverter Input

DOCUMENT/CONTACT

Package*1 Reliability*2
SOT-23-6 R1580N (-AE)

*1: The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and land pattern (foot pattern).
*2: Reliability file includes a reliability test report and a reflow profile.

Inquiry about products

Technical Support

Inquiries (SSL Form)

Inquiry about purchase

Purchase, Request for Samples and Documents

Distributors

Sample Online

Online Distributors