NCP1840Q8A6MNG ON Semiconductor, NCP1840Q8A6MNG Datasheet
NCP1840Q8A6MNG
Specifications of NCP1840Q8A6MNG
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NCP1840Q8A6MNG Summary of contents
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... Work Week G = Pb−Free Package (*Note: Microdot may be in either location) ORDERING INFORMATION Device NCP1840Q8A6MNG NCP1840Q8A6MNTWG †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. Electronic Musical Instruments ♦ ...
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CPO LED1 LED2 LED3 LED4 C1+ C1− C2+ V BAT V BAT C BAT 2 BIAS R BIAS 10. SCL / SDA GND 1 mF Figure ...
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Pin 10− R Bandgap & Bias BIAS Control Logic Pin 8− SCL Logic Serial Pin 9− SDA Pin 7− Pin 6− GND Pin 15− GND PIN DESCRIPTION Pin Name 1 CPO 2−5, 11−14 LED1 − LED8 6, 15, ...
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ABSOLUTE MAXIMUM RATINGS Rating Battery Supply Voltage Range Digital Supply Voltage Range Charge Pump Output Voltage Range LED Outputs Voltage Range SCL Voltage Range SDA Voltage Range Thermal Resistance, Junction−to−Air (Note 1) Storage Temperature Range Lead Temperature, Soldering (Note 2) ...
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OPERATING RANGES Rating Battery Supply Voltage Digital Supply Voltage Ground LED Forward Voltage (Note 4) R External Resistor BIAS Ambient Temperature Junction Temperature 4. At full PWM, max current level. ELECTRICAL CHARACTERISTICS Parameter Digital Supply Current (Note 5) Digital Supply ...
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I C TIMING CHARACTERISTICS (T J Parameter SCL Clock Frequency SCL Low Time SCL High Time Start Hold Time Data Hold Time Start Setup Time Data Setup Time Stop Setup Time Bus Free Time (Stop and Start Conditions) Rise ...
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TYPICAL PERFORMANCE CHARACTERISTICS I = 160 mA (8 LEDs at 20 mA/ch), C OUT 3 −2 −4 −6 2.0 2.5 3.0 3.5 4.0 VBAT VOLTAGE (V) Figure 6. LED Current Change vs. ...
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Constant Current Control The NCP1840 has 8 LED channels that are individually regulated constant current sources. The maximum current per channel but can be reduced by adjusting the resistor R , which is placed between the R ...
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Register Writes & Reads The ability of the NCP1840 to allow the internal registers to be both written and read provides the user with the benefit of being able to easily verify correct register writes and isolate system problem areas ...
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Control Bits The NCP1840 has 3 control bits that are used to dictate the function that will be performed by the part. The following CONTROL BITS DESCRIPTION CB2 CB1 CB0 Turn all LED Channels ON/OFF All channels ...
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REGISTER ADDRESS MAP Address − Binary ...
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CURRENT LEVEL REGISTER DESCRIPTION Data − Binary ...
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PWM REGISTER DESCRIPTION Data − Binary ...
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Output Control Register The Output Control Register on the NCP1840 is used to set the status, either ON or OFF, of all 8 channels. As shown in the following table, each bit in the register corresponds to one of the ...
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Soft Start−Up The NCP1840 has an on−chip power−on−reset (POR) circuitry that is used to provide soft start−up. As the supply voltage is applied, the POR will sense when the voltage reaches a level that will allow all circuitry to operate ...
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Step 4a. Set LEDs and immediately activate the change with settings loaded in Steps 1−3. 4a.1 Set the Part Address to 1B (hex). 4a.2 Set the Read/Write bit to 0. 4a.3 Set ...
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Step 6. Read back the LED1 PWM Register value. 6.1 Set the part address to 1B (hex). 6.2 Set the Read/Write bit to 0. 6.3 Set the Controls Bits to 001 in order to perform a Read operation. 6.4 Set ...
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Use good−quality X5R or X7R ceramic capacitors for C Figure 16. Schematic Showing Charge Pump and Decoupling Capacitors 5. Charge pump capacitors possible − see Figure 17. Figure 17 ...
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... NOTE 3 OUTLINE 20X 0.35 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. N. American Technical Support: 800−282−9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81− ...