LED1642GW:16 Channels LED driver with Error detection, Current Gain Control and 12/16 bit PWM Brightness control

The LED1642GW is a monolithic, low voltage, low current power 16-bit shift register designed for LED panel displays. The LED1642GW guarantees 20 V output driving capability allowing the user to connect several LEDs in series. In the output stage, sixteen regulated current sources provide from 3 mA to 40 mA constant current to drive the LEDs. The current is programmed through an external resistor and can be adjusted by a 7-bit current gain register in two subranges. The brightness can be adjusted separately for each channel through 12/16-bit grayscale control.

Programmable turn-on and turn-off time (four different values available) improves the low noise generation performance of the system.

Open/short error detection mode is available in the LED1642GW. The auto power-shutdown and auto power-on features (selectable) allow the device to save power without external intervention.

Thermal management includes an overtemperature data alert and output thermal shutdown (170 °C). The high clock frequency is up to 30 MHz and it makes the device suitable for high data rate transmission. A selectable gradual output delay reduces the inrush current, whereas the selectable SDO synchronization feature works when the device is used in daisy-chain configuration. The supply voltage range is between 3 V and 5.5 V.

Key Features

  • 16 constant current output channels
  • Output current: from 3 mA to 40 mA
  • Current programmable through external resistor
  • 7-bit global current gain adjustment in two ranges
  • 12/16-bit PWM grayscale brightness control
  • Programmable output turn-on/off time
  • Error detection mode (both open and shorted-LED)
  • Programmable shorted-LED detection thresholds
  • Auto power saving/auto-wakeup
  • Selectable SDO synchronization on the CLK falling edge
  • Gradual output delay (selectable)
  • Supply voltage: 3 V to 5.5 V
  • Thermal shutdown and overtemperature alert
  • 30 MHz 4-wires interface
  • 20 V current generator rated voltage
Product Specifications
DescriptionVersionSize
DS9552: 16 channel LED driver with error detection current gain control and 12/16-bit PWM brightness control6.02 MB
Application Notes
DescriptionVersionSize
AN4374: The LED1642GW and ALED1642GW start-up guide2.01 MB
Brochures
DescriptionVersionSize
Brochure Power management guide05.20164 MB
STM32 Open Development Environment
Part NumberManufacturerDescription
X-NUCLEO-LED16A1ST16 channel LED driver expansion board based on LED1642GW for STM32 Nucleo
Solution Evaluation Tools
Part NumberManufacturerDescription
STEVAL-ILL061V1High brightness RGB LED array driver with local dimming and diagnostics based on LED1642GW and STM32
Sample & Buy
Part NumberQuantityUnit Price (US$) *PackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)ECCN (EU)ECCN (US)Country of Origin
LED1642GWTTR10000.716TSSOP 24Tape And Reel-40125NECEAR99MALAYSIA
LED1642GWXTTR10000.775HTSSOP24Tape And Reel-40125NECEAR99MALAYSIA
LED1642GWPTR10000.716QSOP24Tape And Reel-40125NECEAR99PHILIPPINES
LED1642GWQTR10000.775QFN-24LTape And Reel-40125NECEAR99CHINA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
LED1642GWTTRTSSOP 24IndustrialEcopack2md_yb-wspc-tssop-wspc-24-wspc-body-wspc-4.40-wspc-0.65_mbybui73aca.pdf
md_yb-wspc-tssop-wspc-24-wspc-body-wspc-4.40-wspc-0.65_mbybui73aca.xml
LED1642GWXTTRHTSSOP24IndustrialEcopack2md_yo-wspc-htssop-wspc-24-wspc-4-wspc-.-wspc-4-wspc-pitch-wspc-0-wspc-.-wspc-65-wspc-expad_mbyo-wspc-ui73aba.pdf
md_yo-wspc-htssop-wspc-24-wspc-4-wspc-.xml
LED1642GWPTRQSOP24IndustrialEcopack1md_xk-wspc-qsop-wspc-24l-wspc-3.91-wspc-body_mbxk-wspc-ui73aca.pdf
md_xk-wspc-qsop-wspc-24l-wspc-3.xml
LED1642GWQTRQFN-24LIndustrialEcopack2md_nd-wspc-vfqfpn-wspc-4x4x1.0-wspc-24-wspc-pitch-wspc-0.5_fynd-wspc-ui73aca.pdf
md_nd-wspc-vfqfpn-wspc-4x4x1.xml
16 channel LED driver with error detection current gain control and 12/16-bit PWM brightness control LED1642GW
The LED1642GW and ALED1642GW start-up guide ALED1642GW
Very low drop voltage regulators with inhibit KFXX
md_yb-wspc-tssop-wspc-24-wspc-body-wspc-4.40-wspc-0.65_mbybui73aca.pdf LED1642GW
md_yb-wspc-tssop-wspc-24-wspc-body-wspc-4.40-wspc-0.65_mbybui73aca.xml LED1642GW
md_yo-wspc-htssop-wspc-24-wspc-4-wspc-.-wspc-4-wspc-pitch-wspc-0-wspc-.-wspc-65-wspc-expad_mbyo-wspc-ui73aba.pdf LED1642GW
md_yo-wspc-htssop-wspc-24-wspc-4-wspc-.xml LED1642GW
md_xk-wspc-qsop-wspc-24l-wspc-3.91-wspc-body_mbxk-wspc-ui73aca.pdf LED1642GW
md_xk-wspc-qsop-wspc-24l-wspc-3.xml LED1642GW
md_nd-wspc-vfqfpn-wspc-4x4x1.0-wspc-24-wspc-pitch-wspc-0.5_fynd-wspc-ui73aca.pdf LED1642GW
md_nd-wspc-vfqfpn-wspc-4x4x1.xml LNBH26