Moteur de recherche de fiches techniques de composants électroniques |
|
TCA6507 Fiches technique(PDF) 11 Page - Texas Instruments |
|
|
TCA6507 Fiches technique(HTML) 11 Page - Texas Instruments |
11 / 32 page www.ti.com A1 B1 C1 D A2 B2 C2 E F or ALD Intensity I/O port Voltage V OH V OL 100% 0% 8 ms Approximately 25% Approximately 75% 2 ms 8 ms 6 ms Approximately 12.5% Approximately 37.5% 1 ms 4 ms 8 ms 8 ms 8 ms 3 ms Intensity I/O port Voltage V OH V OL 50% 0% TCA6507 LOW-VOLTAGE 7-BIT I2C AND SMBus LED DRIVER WITH INTENSITY CONTROL AND SHUTDOWN SCPS164B – MAY 2007 – REVISED NOVEMBER 2007 Figure 7. LED Intensity Per Bank Figure 8. Output Port Voltage vs LED Intensity, Maximum Intensity = 100% Figure 9. Output Port Voltage vs LED Intensity, Maximum Intensity = 50% The One-Shot / Master Intensity register (register 9) (see Table 16) is an 8-bit register with three functions. Bits 0–3 set the master intensity value (ALD). It is a binary number between 0 and 15. Bits 4–5 determine whether the maximum intensity of PWM0 and PWM1 is set by the programmed F value (BRIGHT_F0 or BRIGHT_F1) or the master ALD value. The default value for these bits is 0. Bit 4 supports PWM0 and bit 5 is for PWM1. If bit 4 (or bit 5) is 0, the maximum intensity value for PWM0 (or PWM1) is set by the F value. If bit 4 (or bit 5) is 1, the maximum intensity value for PWM0 (or PWM1) is set by the master ALD value. This allows the user to vary the brightness of all LEDs by changing a single register. Bits 6–7 determine whether each PWM operates in normal or one-shot mode. Bit 6 supports PWM0 and bit 7 is for PWM1. If bit 6 (or bit 7) is 0, PWM0 (or PWM1) operates in the normal mode where the LEDs goes through the full intensity cycle defined by Table 15 and Figure 7. If bit 6 (or bit 7) is 1, PWM0 (or PWM1) operate in the one-shot mode. In this mode, the LEDs can be used to create a single-shot lighting effect where the LED intensity is valid for a particular segment of the cycle shown in Table 15 and Figure 7. Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Link(s): TCA6507 |
Numéro de pièce similaire - TCA6507 |
|
Description similaire - TCA6507 |
|
|
Lien URL |
Politique de confidentialité |
ALLDATASHEET.FR |
ALLDATASHEET vous a-t-il été utile ? [ DONATE ] |
À propos de Alldatasheet | Publicité | Contactez-nous | Politique de confidentialité | Echange de liens | Fabricants All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |