SCPS164D MAY 2007 – February 2017 TCA6507
PRODUCTION DATA.
- 1 Features
- 2 Applications
- 3 Description
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Parameter Measurement Information
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3 Feature Description
- 8.4 Device Functional Modes
- 8.5 Programming
- 8.6
Register Maps
- 8.6.1 Registers 0x00 - 0x02 (Select Registers)
- 8.6.2 Register 0x03 (Fade-ON Time)
- 8.6.3 Register 0x04 (Fully-ON Time)
- 8.6.4 Register 0x05 (Fade-OFF Time)
- 8.6.5 Register 0x06 - 0x07 (Fully-OFF Time)
- 8.6.6 Register 0x08 (Maximum Intensity per Bank)
- 8.6.7 Register 0x09 (One-Shot / Master Intensity)
- 8.6.8 Register 0x0A (Initialization Register)
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
封裝選項
機械數(shù)據(jù) (封裝 | 引腳)
散熱焊盤機械數(shù)據(jù) (封裝 | 引腳)
- RUE|12
訂購信息
10 Power Supply Recommendations
10.1 Power-On Reset Requirements
In the event of a glitch or data corruption, the TCA6507 can be reset to its default conditions by using the power-on reset feature. Power-on reset requires that the device go through a power cycle to be completely reset. This reset also happens when the device is powered on for the first time in an application.
Figure 27. VCC Is Lowered to 0 V and Then Ramped Up to VCC
The Table 26 section specifies the performance of the power-on reset feature for TCA6507.
Table 26. Recommended Supply Sequencing and Ramp Rates when EN is Connected to VCC(1)
| PARAMETER | MIN | TYP | MAX | UNIT | ||
|---|---|---|---|---|---|---|
| VCC_FT | Fall rate | See Figure 27 | 0.01 | 100 | ms | |
| VCC_RT | Rise rate | See Figure 27 | 0.01 | 100 | ms | |
| VCC_TRR_GND | Time spent low before re-ramp (when VCC drops to GND) | See Figure 27 | 500 | ms | ||
(1) TA = –40°C to +85°C (unless otherwise noted)
If the EN pin is controlled independently from VCC, ramp rates and times outside these recommended limits. EN must be ramped after supply to ensure correct power-on reset sequence.