CPC6826 High Voltage EL Lamp Driver Features Description • • • • • • • • Clare’s CPC6826 is an electroluminescent (EL) lamp driver that is designed for applications operating with an input supply voltage range of 1.8V to 3.5V. The CPC6826 can also be used in a split-supply configuration, which enables the designer to specify operation with an input voltage as low as 1.5V. 1.8V to 3.5V Supply Voltage DC to AC Conversion Adjustable Output Frequency Adjustable Switch Frequency Output Voltage Regulation Enable/Disable Function Split Power Supply Capability < 100nA Shutdown Current Only five passive, external components are required: an inductor, a capacitor, and a diode to complete the boost switcher circuit; and two resistors to set the frequency of the two internal oscillators. These few components and the CPC6826 together generate the typical 170VP-P AC signal required to drive an EL lamp. Applications • • • • • Mobile Cellular Phones Pagers Portable Transceivers Remote Control Units Calculators The configuration of the CPC6826, with designer access to important components, allows maximum design flexibility for optimal efficiency and brightness. Ordering Information Part Description CPC6826U MSOP-8 Figure 1. CPC6826 Block Diagram 5 VDD RSW-osc LX 1 6 CS 2 Switch Osc Q 8 Vsen + Disable - Vref VA Q Output Osc Q REL-osc GND DS-CPC6826 - R00C 7 3 VB Q 4 www.clare.com 1 CPC6826 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Package Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 Pin Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4 Recommended Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6 Enable/Disable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 3 3 3 4 4 2. Typical Application A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.1 Typical Application A Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2 Typical Application A Performance Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3. Typical Application B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.1 Typical Application B Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.2 Typical Application B Performance Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.2 Regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.3 Switch Oscillator Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.4 Switcher Duty Cycle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.5 Output Oscillator Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4.6 Enable/Disable Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5. External Component Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1 Diode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2 Output Capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.3 Inductor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.4 REL Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 RSW Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 11 11 11 11 11 6. Manufacturing Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6.1 Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6.2 Washing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2 www.clare.com R00C CPC6826 1. Specifications 1.1 Package Pinout VDD 1 RSW-osc 2 REL-osc 3 GND 4 MSOP-8 8 VA 7 VB 6 CS 5 LX Top View 1.2 Pin Description Pin Name Description 1 VDD 2 RSW-osc 3 REL-osc 4 5 GND LX 6 CS 7 VB Internal Switch Node: Internal high-voltage power MOSFET drain Regulated Boost Output: Connect to the output of external storage capacitor of the boost regulator and connect to the cathode of the diode EL Output: Connect to EL lamp - Polarity does not matter 8 VA EL Output: Connect to EL lamp - Polarity does not matter Input Supply Voltage: 1.8V to 3.5V External Switch Resistor: Set switch frequency of the internal power MOSFET by connecting an external resistor to VDD. Connecting the external resistor to GND disables the switch oscillator and shuts down the device. External EL Resistor: Set EL frequency of the internal H-bridge driver by connecting an external resistor to VDD. Connecting the external resistor to GND disables the EL oscillator. Ground Return 1.3 Absolute Maximum Ratings Parameter Ratings Units Supply Voltage, VDD -0.5 to +4.5 V Output Voltage, VCS -0.5 to +100 V 250 -40 to +85 mW ºC -65 to +150 ºC Power Dissipation Operating Temperature Range Storage Temperature Range 1.4 Recommended Operating Conditions Parameter Symbol Min Typ Max Units Supply Voltage VDD 1.8 - 3.5 V Output Drive Frequency fEL 60 - 1000 Hz Operating Temperature TA -40 - 85 ºC R00C www.clare.com 3 CPC6826 1.5 Electrical Characteristics Parameter Conditions Symbol Min Typ Max Units DC Characteristics (Over recommended operating conditions unless otherwise specified, TA=25ºC) I=100mA RDS(on) - - 6 Ω Output Regulation Voltage VDD=1.8V to 3.5V VCS 80 85 90 V Output Voltage Across Lamp VDD=1.8V to 3.5V VA-B - 170 - V RSW-osc= Low IDDQ - - 100 nA VDD=1.8V to 3.5V (Fig. 1) IDD On-Resistance of Switching Transistor Supply Current Quiescent - - 200 μA Electrical Characteristics - Typical Split-Supply Application Circuit (Figure 1) Inductor Current IIN - 26.65 45 mA Output Voltage VCS - 56 - V fSW - 79.6 - kHz D fEL 300 88 348 450 % Hz Active Switcher Frequency VIN=1.5V (Fig. 1) Switcher Duty Cycle Output Drive Frequency 1.6 Enable/Disable Specifications Parameter Disable Enable 4 Conditions Symbol Min Typ Max Units VDD=1.8V to 3.5V ENL 0 - 0.5 V ENH VDD-0.5 - VDD V www.clare.com R00C CPC6826 2. Typical Application A Figure 1. Typical Application A Circuit Diagram VDD = 3V VDD 5 1 CPC6826 6 2 Switch Osc Enable Signal Q 8 Disable ON = VDD OFF = 0 - Q Vsen + EL Lamp 1.6 in2 Output Osc Vref Q 7 3 2 1N4148 Q 4 1 + LX + VIN _ 1 2 Operating Voltage: VDD = 1.8V to 4.0V EL Lamp Size: Up to 3.0 in2 Light Intensity: 39 to 135 Lux LX = Murata LQH43MN221K03 1N4148 or equivalent 2.1 Typical Application A Performance VIN IIN Device Lamp Size VCS fSW fEL Brightness TA CPC6826 56V 79.6KHz 348Hz Lux 39 -40ºC to +85ºC 1.6 in2 1.5V 26.65mA Figure 2. Typical EL Output Waveform 348Hz CH1: VA=50V/div M1=110VP-P CH1=56V CH2=56V CH1: VB=50V/div M1: VA-VB=40V/div R00C www.clare.com 5 CPC6826 60 40 20 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 4.5 1.0 1.5 2.0 2.5 3.0 VIN (V) VIN (V) CPC6826 IIN vs. VIN CPC6826 IIN vs. VCS 50 40 30 30 20 3.5 4.0 4.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 50 55 60 65 70 75 80 85 90 95 VCS (V) CPC6826 Inductor Current vs. Temperature CPC6826 EL Output Voltage vs. Temperature 30 VIN = 1.5V 20 10 -40 -20 0 20 40 60 80 3.0 3.5 4.0 4.5 300 250 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 CPC6826 EL Frequency vs. Temperature 400 VIN = 3.5V 180 160 140 120 100 80 100 2.5 VIN (V) Frequency (Hz) EL Voltage (VA-VB) (VPP) VIN = 3.5V 2.0 350 200 100 200 40 1.5 CPC6826 EL Frequency vs. Input Voltage VIN (V) 50 1.0 400 20 0 4.5 200 180 160 140 120 100 80 60 40 20 0 CPC6826 EL Differential Voltage VA-VB vs. VIN VIN (V) 10 10 Inductor Current (mA) 80 40 0 EL Differential (VA-VB) (VPP) 100 IIN (mA) IIN (mA) 140 120 50 0 CPC6826 Light Intensity vs. VIN EL Frequency (Hz) 100 90 80 70 60 50 40 30 20 10 0 CPC6826 VCS vs. VIN Light Intensity (Lux) VCS (V) 2.2 Typical Application A Performance Charts 350 VIN=3.5V 300 250 VIN = 1.5V -40 -20 0 20 40 60 80 100 Temperature (°C) Temperature (°C) 200 -40 -20 0 20 40 60 80 100 Temperature (°C) CPC6826 Switching Transistor Freq. vs. Temp. 90 Frequency (KHz) 85 VIN=3.5V 80 75 70 65 60 -40 -20 0 20 40 60 80 100 Temperature (°C) 6 www.clare.com R00C CPC6826 3. Typical Application B Figure 3. Typical Application B Circuit Diagram VIN = VDD = 3V 5 1 CPC6826 6 2 Switch Osc Q 8 Enable Signal Disable OFF = 0 - Q Vsen + ON = VDD EL Lamp 3.0 in2 Output Osc Vref 2 Q 7 3 Q 4 VIN = VDD + 1N4148 1 LX + _ Operating Voltage: VDD = 1.8V to 4.0V EL Lamp Size: Up to 3.0 in2 Light Intensity: 19 to 74 Lux 1 LX = Murata LQH43MN561K03 2 1N4148 or equivalent 3.1 Typical Application B Performance Device CPC6826 Lamp Size VDD IDD VCS fSW fEL Light Intensity TA 3.0 in2 3.0V 27mA 84V 62KHz 180Hz 58 Lux -40ºC to +85ºC Figure 4. Typical EL Output Waveform 180Hz CH1: VA=50V/div M1=170VP-P CH1=84V CH2=84V CH1: VB=50V/div M1: VA-VB=40V/div R00C www.clare.com 7 CPC6826 CPC6826 VCS vs. VIN CPC6826 Light Intensity vs. VIN 80 70 EL Differential (VA-VB) (VPP) 100 90 80 70 60 50 40 30 20 10 0 Light Intensity (Lux) VCS (V) 3.2 Typical Application B Performance Charts 60 50 40 30 20 10 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 4.5 1.0 1.5 2.0 2.5 CPC6826 IIN vs. VIN 35 30 30 25 25 20 15 5 5 1.5 2.0 2.5 3.0 3.5 4.0 0 4.5 60 65 2.5 3.0 3.5 4.0 CPC6826 IIN vs. VCS CPC6826 EL Frequency vs. Input Voltage 70 75 80 85 90 95 190 170 150 130 110 100 1.0 1.5 2.0 2.5 3.0 3.5 4.0 CPC6826 Inductor Current vs. Temperature CPC6826 EL Output Voltage vs. Temperature CPC6826 EL Frequency vs. Temperature 200 20 15 VIN = 1.8V 10 180 Frequency (Hz) 25 160 140 120 100 5 -20 0 20 40 60 80 80 100 4.5 200 VIN = 3.5V 180 VIN = 3.5V 30 4.5 210 VIN (V) 35 -40 2.0 VCS (V) Voltage VA-VB (VPP) Inductor Current (mA) 55 1.5 VIN (V) 40 0 50 1.0 VIN (V) 15 10 1.0 4.5 20 10 0 4.0 EL Frequency (Hz) 35 IIN (mA) IIN (mA) 40 3.5 CPC6826 EL Differential Voltage VA-VB vs. VIN VIN (V) VIN (V) 40 3.0 200 180 160 140 120 100 80 60 40 20 0 -40 -20 0 20 40 60 80 VIN=3.5V 140 120 VIN = 1.8V 100 Temperature (°C) Temperature (°C) 160 100 -40 -20 0 20 40 60 80 100 Temperature (°C) CPC6826 Switching Transistor Freq. vs. Temp. Frequency (KHz) 70 65 60 VIN=3.5V 55 50 -40 -20 0 20 40 60 80 100 Temperature (°C) 8 www.clare.com R00C CPC6826 4. Functional Description L1 D1 VIN + 1 (VDD) COUT 5 (LX) CPC6826 6 (CS) RSW 2 (RSW-osc) Switch Osc REL Q 8 (VA) Vsen + 3 (REL-osc) Disable - Q 7 (VB) 4 (GND) Q 4.1 Overview The CPC6826 is an EL lamp driver designed for battery applications operating from an input supply voltage range of 1.8V to 3.5V and generating an AC output voltage of 180Vp-p. The device is capable of driving lamp panels ranging from 1 in2 to 5 in2. The CPC6826 IC main block architecture is made up of two independent oscillators, which control the switching of a power MOSFET and an H-bridge. Adjustment of two external resistors, RSW and REL, sets the frequencies of the oscillators, thus allowing the designer to maximize efficiency and to increase the brightness of the lamp. To conserve supply power and extend battery life, the CPC6826 automatically shuts down the switcher circuit whenever switcher output power exceeds load requirements. Supply power can also be conserved manually by disabling the switching circuit: pull pin 2, RSW, to ground. 4.2 Regulation The circuit configuration is based on simple boost converter topology. This method provides excellent efficiency, minimizes loss of energy, and allows smaller components to be used in the design. Only a few passive components (an inductor, a capacitor, two resistors, and a diode) are required to complete the simple boost switcher circuit. R00C EL Lamp Output Osc Vref CIN VIN - Q When power is applied to VDD, the internal feedback voltage VSEN is less than VREF causing the comparator output to go low, which enables the switching power MOSFET oscillator. When turned on, the internal low impedance switching MOSFET causes current to flow through the external inductor. With current flowing in the inductor, the switching MOSFET is turned off causing a flyback voltage to develop across the inductor. As the inductor's flyback voltage increases to a level greater than a diode drop above the voltage across the capacitor on the CS pin, charge stored in the inductor is transferred into the COUT capacitor. This operating cycle continues until the VSEN voltage is above the VREF in which case the comparator disables the Switch Oscillator. The internal high voltage H-Bridge section is enabled by external resistor REL at pin 3 and VDD on pin 1. The H-bridge operation is controlled by output oscillator waveforms driving H-bridge high-side and low-side MOSFETs. Selecting the value of REL allows the designer to set the frequency of the internal oscillator to meet design requirements. By alternately switching the terminals of the lamp between high voltage supply and ground the 180VP-P potential develops across the EL lamp. www.clare.com 9 CPC6826 4.3 Switch Oscillator Frequency An external resistor connected between pin 2, RSW, and pin 1, VDD, controls the frequency of the Switch Oscillator. Switching frequency increases as the resistor value decreases. For resistor value selections, please refer to the typical characteristics graph: Switching Frequency vs. Switch Resistor. Note that switch accuracy is +/-20% due to the internal RC network. CPC6826 Switching Frequency vs. Switch Resistor 4.4 Switcher Duty Cycle Clare’s CPC6826 driver is designed to generate a fixed duty cycle with a nominal 88% on-time. In addition, this circuit generates an adjustable converter frequency via RSW to turn on and off the high voltage power MOSFET. This drive method helps to eliminate RFI that can cause problems in portable wireless devices. The waveform on pin 5 (LX) shows a typical switch oscillator frequency of 79.6KHz. Switching Frequency (KHz) 1000 100 10 1 100 1000 10000 CH1: 50V/Div Time: 2μs/Div Frequency = 79.6KHz RSW = 560KΩ REL = 1MΩ LX = 220μH EL Lamp = 1.6 in2 10 www.clare.com R00C CPC6826 4.5 Output Oscillator Frequency Setting the output oscillator frequency is accomplished by connecting an external resistor between pin 3, REL, and pin 1, VDD. The output oscillator frequency increases as the resistor value decreases. For resistor value selections refer to the typical characteristics graph: Output Oscillator Frequency vs. REL Resistor. Output Oscillator Frequency (Hz) The switching frequency range is 60Hz to 1000Hz, with an accuracy of +/- 20%. Note that higher EL frequencies draw more current from the battery. In addition to this, the color of the EL lamp and the light intensity are also dependent on the frequency. CPC6826 Output Oscillator Frequency vs. REL Resistor ranging from 0.01μF to 0.1μF with a working voltage of 100V. Ceramic capacitors come in 0805 or 1206 size with an X7R temperature coefficient. If the application requires higher stability over temperature, use a capacitor with a COG or NPO temperature coefficient. 5.3 Inductor The inductor value depends on the specific application requirements. In general, inductor values for typical application circuits range from 100μH up to 1mH. The smaller value inductors are well suited to drive larger lamp sizes due to their inherent high current handling capability. Note that when inductor value decreases, the switching frequency controlled by RSW should be increased to avoid inductor saturation. A 220μH Murata (LQH43MN221K03) inductor with 5.4-Ohm series DC resistance, 110mA rated current, and +/- 10% tolerance is recommended. For inductors with the same value and lower series DC resistance, RSW may have to be adjusted to avoid saturation. Murata offers the LQH43 series from 100μH to 560μH in the 1812 package size. 10000 1000 100 10 0.1 1 10 4.6 Enable/Disable Function This function can be implemented to manually enable or disable the CPC6826. The enable function is accomplished by connecting resistor RSW, on pin 2, and resistor REL, on pin 3, to VDD pin 1. To disable the CPC6826, connect the two resistors to GND. 5. External Component Description 5.1 Diode The application circuit lists fast-reverse-recovery diodes such as the 1SS400T1G in the SOD523 package, with a breakdown voltage of 100V and a forward current rating of 200mA. The typical voltage drop is 950mV at 25°C and the reverse recovery time, tRR, is 4nS. 5.4 REL Resistor The EL lamp frequency is controlled via an external resistor connected from pin 3, REL-osc, to pin 1, VDD. The lamp frequency increases as the value of REL decreases. Higher EL frequency will increase the current that is drawn from the battery and will decrease the voltage at pin 6, VCS. The color of the Lamp also depends on its frequency. The size of the resistor used in the application is 0603 with a tolerance of 1%. Smaller size resistors can be used to reduce board space consumed. 5.5 RSW Resistor The switching frequency of the converter is set by adjusting the value of resistor, RSW, which is connected between pin 2 and pin 1, VDD. The switching frequency increases as RSW decreases. Increasing the value of Rsw will decrease the switching frequency of the internal oscillator, which in turn decrease inductor current and VCS voltage at pin 6. The size of the resistor used in the application is 0603 with a tolerance of 1%. Smaller size resistors can be used to reduce board space consumed. 5.2 Output Capacitor The value of the output capacitor, COUT, connected to pin 6, is based on the particular application circuit and is dependent on peak inductor current, inductor size, and the load. The application circuits give values R00C www.clare.com 11 CPC6826 6. Manufacturing Information 6.1 Soldering For proper assembly, the component must be processed in accordance with the current revision of IPC/JEDEC standard J-STD-020. Failure to follow the recommended guidelines may cause permanent damage to the device resulting in impaired performance and/or a reduced lifetime expectancy. 6.2 Washing Clare does not recommend ultrasonic cleaning or the use of chlorinated hydrocarbons. Mechanical Dimensions 0.005 MIN - 0.009 MAX (0.13 MIN-0.23 MAX) PIN 8 0.114 MIN-0.122 MAX (2.90 MIN-3.10 MAX) 0.193 (4.90) 0.0175 MIN-0.0255 MAX (0.445 MIN-0.648 MAX) PIN 1 12 0.010 MIN-0.012 MAX (0.25 MIN - 0.40 MAX) 0 -6 0.114 MIN-0.122 MAX (2.90 MIN-3.10 MAX) 0.043 MAX (1.10 MAX) NOTES: 1. REFERENCE DRAWING JEDEC MO-187AA. 0.026 (0.65) 0.002 MIN-0.006 MAX (0.05 MIN - 0.15 MAX) 0.0155 MIN-0.0255 MAX (0.394 MIN-0.648 MAX) DIMENSIONS: INCHES (MM) For additional information please visit our website at: www.clare.com Clare, Inc. makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication and reserves the right to make changes to specifications and product descriptions at any time without notice. Neither circuit patent licenses nor indemnity are expressed or implied. Except as set forth in Clare’s Standard Terms and Conditions of Sale, Clare, Inc. assumes no liability whatsoever, and disclaims any express or implied warranty, relating to its products including, but not limited to, the implied warranty of merchantability, fitness for a particular purpose, or infringement of any intellectual property right. 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, or in 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. Specification: DS-CPC6826-R00C ©Copyright 2007, Clare, Inc. All rights reserved. Printed in USA. 5/24/07 12