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LP5569 数据表(PDF) 55 Page - Texas Instruments |
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LP5569 数据表(HTML) 55 Page - Texas Instruments |
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55 / 93 page  55 LP5569 www.ti.com SNVSAP8A – JULY 2017 – REVISED SEPTEMBER 2017 Product Folder Links: LP5569 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated 8.6.1.30 LED8_CURRENT Register (Address = 2Ah) [reset = AFh] LED8_CURRENT is shown in Figure 56 and described in Table 45. Return to Summary Table. LED8 Current Register LED8 driver output current control register. The resolution is 8 bits, and step size is 100 μA. Figure 56. LED8_CURRENT Register 7 6 5 4 3 2 1 0 current8 R/W-AFh Table 45. LED8_CURRENT Register Field Descriptions Bit Field Type Reset Description 7–0 current8 R/W AFh 00h = 0.0 mA 01h = 0.1 mA ... AFh = 17.5 mA (default) ... FFh = 25.5 mA 8.6.1.31 MISC Register (Address = 2Fh) [reset = 40h] MISC is shown in Figure 57 and described in Table 46. Return to Summary Table. Miscellaneous Register Figure 57. MISC Register 7 6 5 4 3 2 1 0 RESERVED en_auto_incr powersave_en cp_mode cp_return_1x RESERVED int_clk_en R/W-0h R/W-1h R/W-0h R/W-0h R/W-0h R/W-0h R/W-0h Table 46. MISC Register Field Descriptions Bit Field Type Reset Description 7 RESERVED R/W 0h Reserved 6 en_auto_incr R/W 1h I2C address auto-increment enable 0 = Address auto-increment is disabled 1 = Address auto-increment is enabled (default) 5 powersave_en R/W 0h Power-save mode enable select 0 = Power-save mode is disabled (default) 1 = Power-save mode is enabled 4–3 cp_mode R/W 0h Charge-pump mode selection 00 = Disabled (cp output pulled-down internally, default) 01 = 1× mode 10 = 1.5× mode 11 = Auto mode 2 cp_return_1x R/W 0h Charge-pump return to 1× mode select 0 = Charge-pump mode is not affected during shutdown or power- save entry (default) 1 = Charge-pump mode is forced to 1x mode during shutdown or power-save entry 1 RESERVED R/W 0h Reserved |
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