CPC9909NE Clare, CPC9909NE Datasheet
CPC9909NE
Specifications of CPC9909NE
Related parts for CPC9909NE
CPC9909NE Summary of contents
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... PWM signal to the PWMD pin. The CPC9909 is available in a standard 8-lead SOIC package and a thermally enhanced 8-lead SOIC package with an exposed thermal pad (EP). Ordering Information Part CPC9909N CPC9909NTR CPC9909NE CPC9909NETR CPC9909 Voltage Regulator R Minimum Off-Time T TRIG One Shot Voltage ...
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... Enable/Disable Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.7 Minimum Off-Time One-Shot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.8 Inductor Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.9 Gate Output Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.10 Linear Dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.11 PWM Dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.12 Combination Linear and PWM Dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3. Manufacturing Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.1 Mechanical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.2 Packaging Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.3 Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.4 Washing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 R01 www.clare.com CPC9909 2 ...
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... V DD Linear Dimming. Apply a voltage less than dim the LED(s). CS(high) R Resistor to GND sets the minimum off-time. T Electrical and thermal conductive pad on the bottom of CPC9909NE. Connect this pad to - ground and provide sufficient thermal coupling to remove heat from the package. Unit °C ° ...
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... T off I =-10mA V OUT GATE(high) I =+10mA V OUT GATE(low) C =500pF t RISE GATE t C =500pF FALL GATE Package Symbol 1 SOIC-8 With Thermal Pad (NE) R θJA SOIC-8 W/O Thermal Pad N) www.clare.com Maximum Unit V 550 +85 °C =25°C. A Minimum Typical Maximum 8 - 550 IN - 0.3 0.6 7.2 7.8 8 150 ...
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... A soft start function can be implemented by ramping up the DC voltage at the LD pin from the desired rate. To utilize the soft start function, connect a resistor divider from V capacitor from the LD pin to ground, as shown in Figure Figure 1 Figure 2 Soft-Start Circuit ) SENSE www.clare.com D1 TRIG Q1 GATE CS R SENSE GND , and the internal voltage SENSE ...
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... The CPC9909 uses a fixed off-time control scheme. The minimum off-time is set by an external resistor connected between the RT and GND terminals. The off-time can be determined by: ( μ off Off-time selection indirectly determines the switching frequency of the LED driver. www.clare.com high ---------------------------------- = I + 0.5ΔI LED ...
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... The CPC9909 uses an internal gate drive circuit to turn on and off an external power MOSFET. The gate driver can drive a variety of MOSFETs. For a typical resistor T off-line application, the total MOSFET gate charge will be less than 25nC. t (μS) off 2000 2500 3000 www.clare.com V LEDstring × ------------------------- - = t MIN off Δ Ripple Current = ...
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... D1 Schottky 40V 220μH CPC9909 402kΩ GND V DD GATE PWMD 0.1μF 50V www.clare.com value available. Note that applying T LD Monitor R1 402kΩ R2 51kΩ CPC9909 RA1 LD 5.0kΩ PWMD C1 C1 2.2μ ...
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... CPC9909 Recommended PCB Land Pattern 1.55 (0.061) 5.40 (0.213) 0.60 1.27 (0.024) (0.050) Dimensions mm ...
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... The products described in this document are not designed, intended, authorized, or warranted for use as components in systems intended for surgical implant into the body other applications intended to support or sustain life, or where malfunction of Clare’s product may result in direct physical harm, injury, or death to a person or severe property or environmental damage. Clare, Inc. reserves the right to discontinue or make changes to its products at any time without notice. ...