Product Summary

The TLC5921DAP is a current-sink constant current driver incorporating shift register and data latch. The current value at constant current output can be set by one external register. The TLC5921DAP also incorporates thermal shutdown (TSD) circuitry which turns constant current output off when the junction temperature exceeds the limit, and LED open detection (LOD) circuitry to report the LED was disconnected.

Parametrics

TLC5921DAP absolute maximum ratings: (1)Supply voltage, VCC: -0.3 V to 7 V; (2)Output current (dc), IO(LC): 90 mA; (3)Input voltage range, VI: -0.3 V to VCC + 0.3 V; (4)Output voltage range, VO(SOUT), VO(XDOWN): -0.3 V to VCC + 0.3 V; (5)Output voltage range, VO(OUTn): -0.3 V to 18 V; (6)Storage temperature range, Tstg: -40℃ to 150℃; (7)Continuous total power dissipation at (or below) TA = 25℃: 3.9 W; (8)Power dissipation rating at (or above) TA = 25℃: 31.4 mW/℃.

Features

TLC5921DAP features: (1)Input/Output Signal Level: CMOS Level; (2)Power Supply Voltage: 4.5 V to 5.5V; (3)Maximum Output Voltage: 17 V (Max); (4)Data Transfer Rate: 20 MHz (Max); (5)Operating Free-Air Temperature Range: –20℃ to 85℃; (6)Available in 32 Pin HTSSOP DAP Package(PD=3.9 W, TA = 25℃); (7)LOD Function: LED Open Detection(Error Signal Output at LED Disconnection); (8)TSD Function: Thermal Shutdown (Turn Output Off When Junction Temperature Exceeds Limit).

Diagrams

TLC5921DAP block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
TLC5921DAP
TLC5921DAP

Texas Instruments

LED Lighting Drivers LED w/Shift Reg

Data Sheet

0-1: $2.15
1-25: $1.99
25-100: $1.57
100-250: $1.38
TLC5921DAPG4
TLC5921DAPG4

Texas Instruments

LED Lighting Drivers LED Driver

Data Sheet

0-1: $2.15
1-25: $1.84
25-100: $1.57
100-250: $1.38
TLC5921DAPR
TLC5921DAPR

Texas Instruments

LED Lighting Drivers LED Driver

Data Sheet

0-1: $1.68
1-25: $1.54
25-100: $1.25
100-250: $1.14
TLC5921DAPRG4
TLC5921DAPRG4

Texas Instruments

LED Lighting Drivers LED Driver

Data Sheet

0-1590: $0.95
1590-2000: $0.94