STP16DPPS05XTTR STMicroelectronics, STP16DPPS05XTTR Datasheet - Page 19

• Manufacturer Part Number: STP16DPPS05XTTR
• Description: IC LED DRIVER LINEAR 24-TSSOP
• Manufacturer: STMicroelectronics
• Type: Linear (Serial Interface)r

Specifications of STP16DPPS05XTTR

• Topology: 16-Bit Shift Register
• Number Of Outputs: 16
• Internal Driver: Yes
• Type - Primary: General Purpose
• Frequency: 30MHz
• Voltage - Supply: 3 V ~ 5.5 V
• Voltage - Output: 20V
• Mounting Type: Surface Mount
• Package / Case: 24-TSSOP Exposed Pad, 24-eTSSOP, 24-HTSSOP
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 40mA
• Internal Switch(s): Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Efficiency: -
• Lead Free Status / Rohs Status: Details
• Other names: 497-9070-2

STP16DPPS05
7.2
Phase two: error detection
The 16 data bits must be set to “1” in order for all the outputs to be ON during error
detection. The data are latched by LE/DM1, after which the outputs are ready for the
detection process. When the microcontroller switches the OE/DM2 to LOW, the device
drives the LEDs to analyze if an OPEN or SHORT condition has occurred.
Figure 19. Detection diagram
The status of the LEDs is detected in at least 1 microsecond, and after this period the
microcontroller sets OE/DM2 to HIGH state and the output data detection result is sent to
the microcontroller via SDO.
Error detection mode and normal mode both use the same data format. As soon as all the
detection data bits are available on the serial line, the device may return to normal mode of
operation. To re-detect the status, the device must first return to normal mode and reenter
error detection mode.
Doc ID 15817 Rev 2
Error detection mode functionality
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