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CFA633-RDI-KS датащи(PDF) 22 Page - Crystalfontz America, Inc. |
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CFA633-RDI-KS датащи(HTML) 22 Page - Crystalfontz America, Inc. |
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22 / 88 page ![]() Crystalfontz America, Inc. Data Sheet Release Date 2012/02/21 www.crystalfontz.com CFA633-RDI-KS LCD Module (Hardware v2.0 / Firmware s2v1) February 2012 Page 22 SUPPLY VOLTAGES AND CURRENT DRIVING METHOD SPECIFICATION Duty 1/16 Bias 1.5 SUPPLY VOLTAGE Supply voltage for driving the LCD module (logic) +4.75v +5.0v +5.25v Supply voltage for backlight* +11v +12v +13v Supply voltage to run fans* +4.75v +12v +13v *JP7 must be opened for the operating range of +12v fans (optional) to be different from +12v backlights (listed in this table). If JP7 is closed (which is the default), then the voltage specifi- cation range for backlights must be observed for both backlights AND fans. TYPICAL CURRENT CONSUMPTION SPECIFICATION +5v for logic (LCD + microcontroller) 12 mA +12v for backlight (at 100%) 60 mA Note Draw on +12v for optional fans will vary, depending on user equipment connected to FAN1 through FAN4. Maximum continuous current draw must be <1.5 A per fan connector, no more than 4 A total. Maximum pulsed current draw may be up to 5 A per connector. The pulse width must be less than 50 mS. (This pulse specification allows for the fan's start-up current spike.) GPIO CURRENT LIMITS SPECIFICATION Sink 25 mA Source 10 mA |
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