CAT3636

CAT3636 6-Channel Quad-Mode[ Fractional LED Driver in TQFN 3x3 Description The CAT3636 is a high efficiency Quad−Mode fractional charge pump that can drive up to six LEDs programmable by a one wire digital interface. The inclusion of a 1.33x fractional charge pump mode increases device efficiency by up to 10% over traditional 1.5x charge pumps with no added external capacitors. Low noise input ripple is achieved by operating at a constant switching frequency which allows the use of small external ceramic capacitors. The multi−fractional charge pump supports a wide range of input voltages from 2.5 V to 5.5 V. The EN/SET logic input functions as a chip enable and a “1−wire” addressable interface for control and current setting of all LEDs. Three groups of two LEDs can be configured with independent LED currents between 0.25 mA and 32 mA. The device is available in a tiny 16−lead TQFN 3 mm x 3 mm package with a max height of 0.8 mm. ON Semiconductor’s Quad−Mode® 1.33x charge pump switching architecture is patented. Features http://onsemi.com TQFN−16 HV3 SUFFIX CASE 510AD PIN CONNECTIONS EN/S GND NC NC LEDC2 LEDC1 LEDB2 LEDB1 1 C2− C2+ C1− C1+ • • • • • • • • • • • • High Efficiency 1.33x Charge Pump Quad−Mode Charge Pump: 1x, 1.33x, 1.5x, 2x Drives up to 6 LEDs at 32 mA Each 1−Wire EZDimt LED Current Programming Power Efficiency up to 92% Low Noise Input Ripple in All Modes “Zero” Current Shutdown Mode Soft Start and Current Limiting Short Circuit Protection Thermal Shutdown Protection Tiny 3 mm x 3 mm, 16−lead TQFN Package These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant LCD Display Backlight Color RGB LEDs Cellular Phones Digital Still Cameras Handheld Devices LEDA2 LEDA1 (Top View) MARKING DIAGRAMS JAAA AXXX YWW JAAR AXXX YWW Applications JAAA = CAT3636HV3−T2 JAAR = CAT3636HV3−GT2 A = Assembly Location XXX = Last Three Digits of Assembly Lot Number Y = Production Year (Last Digit) WW = Production Week (Two Digits) • • • • • ORDERING INFORMATION Device CAT3636HV3−T2 (Note 1) CAT3636HV3−GT2 (Note 2) Package TQFN−16 (Pb−Free) TQFN−16 (Pb−Free) Shipping 2,000/ Tape & Reel 1. Matte−Tin Plated Finish (RoHS−compliant). 2. NiPdAu Plated Finish (RoHS−compliant). © Semiconductor Components Industries, LLC, 2010 May, 2010 − Rev. 7 1 Publication Order Number: CAT3636/D VOUT VIN CAT3636 1 mF 1 mF pair A pair B pair C COUT 1 mF 20 mA VIN 2.5 V to CIN 5.5 V 1 mF One wire programming C1− C1+ C2− C2+ VIN VOUT CAT3636 LEDA1 LEDA2 LEDB1 EN/SET LEDB2 LEDC1 LEDC2 GND Figure 1. Typical Application Circuit Table 1. ABSOLUTE MAXIMUM RATINGS Parameter VIN, LEDx, C1±, C2± voltage VOUT Voltage EN/SET Voltage Storage Temperature Range Junction Temperature Range (Note 3) Lead Temperature Rating 6 7 VIN + 0.7 V −65 to +160 −40 to +150 300 Unit V V V °C °C °C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. Table 2. RECOMMENDED OPERATING CONDITIONS Parameter VIN Ambient Temperature Range (Note 3) ILED per LED pin Total Output Current 3. Package thermal resistance is below 50°C/W when mounted on FR4 board. NOTES: Typical application circuit with external components is shown above. Range 2.5 to 5.5 −40 to +85 0 to 32 0 to 192 Unit V °C mA mA http://onsemi.com 2 CAT3636 Table 3. ELECTRICAL OPERATING CHARACTERISTICS Symbol IQ Name Quiescent Current (over recommended operating conditions unless specified otherwise) VIN = 3.6 V, EN = High, TAMB = 25°C Conditions 1x mode, VIN = 4.2 V 1.33x mode, VIN = 3.3 V 1.5x mode, VIN = 2.8 V 2x mode, VIN = 2.5 V VEN = 0 V 1 mA ≤ ILED ≤ 31 mA I LED * I LEDAVG I LEDAVG ROUT Output Resistance (open loop) 1x mode, IOUT = 100 mA 1.33x mode, IOUT = 100 mA 1.5x mode, IOUT = 100 mA 2x mode, IOUT = 100 mA 1.33x and 2x mode 1.5x mode VOUT < 0.5 V 0.6 0.8 0.5 4.5 3.5 6 0.8 1.1 80 150 VIN − Highest LED VF VOUT > 1 V 400 500 450 100 0.4 150 20 2 1.1 1.4 W ±3 ±1 Min Typ 1.5 2.8 3.7 3.8 1 Max Units mA IQSHDN ILED−ACC ILED−DEV Shutdown Current LED Current Accuracy LED Channel Matching mA % % FOSC ISC_MAX LEDTH VHYS TDF IIN_MAX REN/DIM VHI VLO TSD THYS VUVLO Charge Pump Frequency Output short circuit Current Limit 1x to 1.33x or 1.33x to 1.5x or 1.5x to 2x Transition Thresholds at any LEDxx pin 1.33x to 1x Transition Hysteresis Transition Filter Delay Input Current Limit EN/DIM Pin − Internal Pull−down Resistor − Logic High Level − Logic Low Level Thermal Shutdown Thermal Hysteresis Undervoltage lockout (UVLO) threshold MHz mA mV mV ms mA kW V V °C °C V 1.3 Table 4. RECOMMENDED EN/SET TIMING (For 2.5 ≤ VIN ≤ 5.5 V, over full ambient temperature range −40 to +85°C.) Symbol TSETUP TLO THI TOFF TDATADELAY TRESETDELAY Name EN/SET setup from shutdown EN/SET program low time EN/SET program high time EN/SET low time to shutdown EN/SET Delay to DATA EN/SET Delay High to ADDRESS Conditions Min 10 0.2 0.2 1.5 500 2 1000 Typ Max 100 (Note 4) 100 100 Units ms ms ms ms ms ms 4. If the Max value is exceeded then the user should wait 2 ms before trying to program the device again. Figure 2. EN/SET One Wire Addressable Timing Diagram http://onsemi.com 3 CAT3636 TYPICAL PERFORMANCE CHARACTERISTICS (VIN = 3.6 V, IOUT = 120 mA (6 LEDs at 20 mA), CIN = COUT = C1 = C2 = 1 mF, TAMB = 25°C unless otherwise specified.) 100 VF = 3.3 V 90 EFFICIENCY (%) 80 70 60 50 IOUT = 40 mA 40 4.5 4.0 3.5 3.0 INPUT VOLTAGE (V) 2.5 2.0 1x 2x 1.33x 1.5x EFFICIENCY (%) 100 90 80 70 60 50 40 4.2 4.0 3.8 3.6 3.4 INPUT VOLTAGE (V) 3.2 3.0 Traditional 1.5x Charge Pump VF = 3.3 V VF = 3.0 V Figure 3. Efficiency vs. Input Voltage 10 LED CURRENT VARIATION (%) 6 4 2 0 −2 −4 −6 LED CURRENT VARIATION (%) 8 VF = 3.3 V 10 8 6 4 2 0 −2 −4 −6 −8 −10 −40 Figure 4. Efficiency vs. Li−Ion Voltage −8 −10 5.5 5.0 4.5 4.0 3.5 3.0 INPUT VOLTAGE (V) 2.5 2.0 −20 0 20 40 TEMPERATURE (°C) 60 80 Figure 5. LED Current Change vs. Input Voltage 6 VF = 3.3 V QUIESCENT CURRENT (mA) 5 4 3 2 1 0 Figure 6. LED Current Change vs. Temperature 5.5 5.0 4.5 4.0 3.5 3.0 INPUT VOLTAGE (V) 2.5 2.0 Figure 7. Quiescent Current vs. Input Voltage http://onsemi.com 4 CAT3636 TYPICAL PERFORMANCE CHARACTERISTICS (VIN = 3.6 V, IOUT = 120 mA (6 LEDs at 20 mA), CIN = COUT = C1 = C2 = 1 mF, TAMB = 25°C unless otherwise specified.) 1.2 SWITCHING FREQUENCY (MHz) OUTPUT RESISTANCE (W) 1.1 1.0 0.9 0.8 0.7 0.6 −40 1.33x, 2x Mode 1.5x Mode 10 VF = 3.3 V 8 2x 6 1.33x 4 2 0 −20 0 20 40 60 80 TEMPERATURE (°C) 1.5x 1x 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 INPUT VOLTAGE (V) Figure 8. Switching Frequency vs. Temperature Figure 9. Output Resistance vs. Input Voltage Figure 10. Power Up in 1x Mode Figure 11. Power Up in 1.33x Mode Figure 12. Power Up in 1.5x Mode Figure 13. Power Up in 2x Mode http://onsemi.com 5 CAT3636 TYPICAL PERFORMANCE CHARACTERISTICS (VIN = 3.6 V, IOUT = 120 mA (6 LEDs at 20 mA), CIN = COUT = C1 = C2 = 1 mF, TAMB = 25°C unless otherwise specified.) 4.0 3.5 OUTPUT VOLTAGE (V) 3.0 2.5 2.0 1.5 1.0 0.5 0 0 100 200 300 OUTPUT CURRENT (mA) 400 500 1x Mode Figure 14. Power Down Delay (1x Mode) Figure 15. Foldback Current Limit Figure 16. Operating Waveforms in 1x Mode Figure 17. Switching Waveforms in 1.33x Mode Figure 18. Switching Waveforms in 1.5x Mode Figure 19. Switching Waveforms in 2x Mode http://onsemi.com 6 CAT3636 Table 5. PIN DESCRIPTION Pin # 1 2 3 4 5 6 7 8 9 10 11 12 13/14 15 16 TAB Name LEDC2 LEDC1 LEDB2 LEDB1 LEDA2 LEDA1 VOUT VIN C1+ C1− C2+ C2− NC GND EN/SET TAB LEDC2 cathode terminal LEDC1 cathode terminal LEDB2 cathode terminal LEDB1 cathode terminal LEDA2 cathode terminal LEDA1 cathode terminal Charge pump output, connect to LED anodes Charge pump input, connect to battery or supply Bucket capacitor 1, positive terminal Bucket capacitor 1, negative terminal Bucket capacitor 2, positive terminal Bucket capacitor 2, negative terminal No connect Ground reference Device enable (active high) and 1 wire control input Connect to GND on the PCB Function Pin Function VIN is the supply pin for the charge pump. A small 1 mF ceramic bypass capacitor is required between the VIN pin and ground near the device. The operating input voltage range is from 2.5 V to 5.5 V. Whenever the input supply falls below the under−voltage threshold (2 V) all the LED channels will be automatically disabled and the device register are reset to default values. EN/SET is the enable and one wire addressable control logic input for all LED channels. Guaranteed levels of logic high and logic low are set at 1.3 V and 0.4 V respectively. When EN/SET is initially taken high, the device becomes enabled and all LED currents remain at 0 mA. To place the device into zero current mode, the EN/SET pin must be held low for more than 1.5 ms. VOUT is the charge pump output that is connected to the LED anodes. A small 1 mF ceramic bypass capacitor is required between the VOUT pin and ground near the device. GND is the ground reference for the charge pump. The pin must be connected to the ground plane on the PCB. C1+, C1− are connected to each side of the ceramic bucket capacitor C1. C2+, C2− are connected to each side of the ceramic bucket capacitor C2. LEDxx provide the internal regulated current for each of the LED cathodes. These pins enter high−impedance zero current state whenever the device is placed in shutdown mode. TAB is the exposed pad underneath the package. For best thermal performance, the tab should be soldered to the PCB and connected to the ground plane. http://onsemi.com 7 CAT3636 Block Diagram C1 − C1+ C2 − C2+ VIN 1x mode (LDO) 1.33x, 1.5x, 2x Charge Pump VOUT Mode Control 0.8, 1.1 MHz Oscillator EN/SET 100 kW LEDA1 LEDA2 LEDB1 LEDB2 LEDC1 Serial Interface Reference Voltage LEDC2 Registers Current Setting DAC 6 Current Sink Regulators GND Figure 20. CAT3636 Functional Block Diagram Basic Operation At power−up, the CAT3636 starts operating in 1x mode where the output will be approximately equal to the input supply voltage (less any internal voltage losses). If the output voltage is sufficient to regulate all LED currents, the device remains in 1x operating mode. If the input voltage is insufficient or falls to a level where the regulated currents cannot be maintained, the device automatically switches into 1.33x mode (after a fixed delay time of about 400 ms). In 1.33x mode, the output voltage is approximately equal to 1.33 times the input supply voltage (less any internal voltage losses). If the input voltage is insufficient again or falls to a level where the regulated currents cannot be maintained, the device will automatically switch to the 1.5x boost mode (after a fixed delay time of about 400 ms). In 1.5x mode, the output is approximately equal to 1.5 times the input supply voltage (less any internal voltage losses). If the input voltage fails more or is still insufficient to drive the LEDs, it will automatically switch again into 2x mode where the output is approximately equal to 2 times the input supply voltage (less any internal voltage losses). If the device detects a sufficient input voltage is present to drive all LED currents in 1x mode, it will change automatically back to 1x mode. This only applies for changing back to the 1x mode http://onsemi.com 8 CAT3636 LED Current Setting The current in each of the six LED channels is programmed through the 1−wire EN/SET digital control input. By pulsing this signal according to a specific protocol, a set of internal registers can be addressed and written into allowing to configure each bank of LEDs with the desired current. There are six registers: the first five are 4 bits long and the sixth is 1 bit long. The registers are programmed by first selecting the register address and then programming data into that register. An internal counter records the number of falling edges to identify the address and data. The address is serially programmed adhering to low and high duration time delays. One down pulse corresponds to register 1 being selected. Two down pulses correspond to register 2 being selected and so on up to register 6. TLO and THI must be within 200 ns to 100 ms. Anything below 200 ns may be ignored. Once the final rising edge of the address pointer is programmed, the user must wait 500 ms to 1000 ms before programming the first data pulse falling edge. If the falling edge of the data is not received within 1000 ms, the device will revert back to waiting for an address. Data in a register is reset once it is selected by the address pointer. If a register is selected but no data is programmed, then the register value is reset back to its initial default value with all data bits to 0. Once the final rising edge of the data pulses is programmed, the user must wait 1.5 ms before programming another address. If programming fails or is interrupted, the user must wait TRESETDELAY 2 ms from the last rising edge before reprogramming can commence. Upon power−up, the device automatically starts looking for an address. The device requires a minimum 10 ms delay (TSETUP) to ensure the initialization of the internal logic at power−up. After this time delay, the device registers may be programmed adhering to the timing constraints shown in Figure 21. If no falling edge is detected within 100 ms of power−up, then the user must wait 2 ms before trying to program the device again. To power−down the device and turn−off all current sources, the EN/SET input should be kept low for a duration TOFF of 1.5 ms or more. The driver typically powers−down with a delay of about 1 ms. All register data are lost. Figure 21. EN/SET One Wire Addressable Timing Diagram http://onsemi.com 9 CAT3636 Register Configuration and Programming Table 6. REGISTER ADDRESS AND DATA Register REG1 REG2 REG3 REG4 REG5 REG6 Address Pulses 1 2 3 4 5 6 DATA Pattern Description Bank Enable and IMODE Global Current Setting Bank A Current Setting Bank B Current Setting Bank C Current Setting Return Lockout Bits 4 4 4 4 4 1 RTLKO See Table 8 for values Bit 3 IMODE Bit 2 ENA Bit 1 ENB Bit 0 ENC Register REG1 allows to set the mode and select the pairs of LEDs to be turned on. A low LED current mode exists to allow for very low current operation under 4 mA per channel. If IMODE equals 1, the high current range is selected up to 32 mA. If IMODE is set to 0, all currents are divided by 8. Each bank of LEDs (A, B or C) can be turned on independently by setting the respective bit ENA, ENB, ENC to 1, as shown in Table 7. For example, to enable all 6 LEDs in low current mode, REG1 is programmed to 0111 binary (9 data pulses). Table 7. REG1 REGISTER SETTING Data Pulses 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 REG1 Value (binary) 0000 1111 1110 1101 1100 1011 1010 1001 1000 0111 0110 0101 0100 0011 0010 0001 0000 Bank Enable IMODE 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 ENA − On On On On − − − − On On On On − − − − ENB − On On − − On On − − On On − − On On − − ENC − On − On − On − On − On − On − On − On − Table 8. REG2−5 CURRENT SETTING REGISTERS Data Pulses 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 REGx Value (binary) 0000 1111 1110 1101 1100 1011 1010 1001 1000 0111 0110 0101 0100 0011 0010 0001 0000 LED Current IMODE = 0 0.0 mA 3.75 mA 3.5 mA 3.25 mA 3 mA 2.75 mA 2.5 mA 2.25 mA 2 mA 1.75 mA 1.5 mA 1.25 mA 1 mA 0.75 mA 0.5 mA 0.25 mA 0.0 mA LED Current IMODE = 1 2 mA 32 mA 30 mA 28 mA 26 mA 24 mA 22 mA 20 mA 18 mA 16 mA 14 mA 12 mA 10 mA 8 mA 6 mA 4 mA 2 mA Register REG2 allows to set the same current for all 6 channels. REG3, REG4, REG5 allow to set the current respectively in banks A, B and C. The three banks can be programmed with independent current values. REG6 contains the return lockout (RTLKO) bit. This stops the charge pump returning to 1x mode. One pulse sets it to 1. Two pulses or no pulses set RTLKO to 0. When RTLKO is set to 1, the charge pump cannot automatically return to 1x mode when in one of the charge pump modes. The device can however move from 1x to 1.33x to 1.5x to 2x if the input voltage is not sufficient to drive the programmed LED currents. REG6 also triggers a charge pump reset as soon as it is addressed. This forces the charge pump to start from 1x mode and reassess the correct mode it should be in to drive the LEDs most efficiently. If the input voltage has risen or the device has been reprogrammed to other LED values, it is recommended to trigger this reset allowing the charge pump to run in the most efficient mode. The CAT3636 enters a “zero current” shutdown mode if EN/SET is held low for 1.5 ms or more. All registers are reset back to zero when the device is placed in shutdown. http://onsemi.com 10 Programming Examples Programming 6 LEDs to 32 mA Programming 6 LEDs to 20 mA CAT3636 http://onsemi.com Programming 6 LEDs to 1 mA 11 CAT3636 Unused LED Channels LED Selection For applications with only four or two LEDs, unused LED banks can be disabled via the enable register internally and left to float. For applications with 5 LEDs or less, unused LEDs can also be disabled by connecting the LED pin directly to VOUT, as shown on Figure 22. If LED pin voltage is within 1 V of VOUT, then the channel is switched off and a 200 mA test current is placed in the channel to sense when the channel moves below VOUT – 1 V. LEDs with forward voltages (VF) ranging from 1.3 V to 5.0 V may be used with the CAT3636. Selecting LEDs with lower VF is recommended in order to improve the efficiency by keeping the driver in 1x mode longer as the battery voltage decreases. For example, if a white LED with a VF of 3.3 V is selected over one with VF of 3.5 V, the CAT3636 will stay in 1x mode for lower supply voltage of 0.2 V. This helps improve the efficiency and extends battery life. External Components The driver requires two external 1 mF ceramic capacitors for decoupling input, output, and for the charge pump. Both capacitors type X5R and X7R are recommended for the LED driver application. In all charge pump modes, the input current ripple is kept very low by design and an input bypass capacitor of 1 mF is sufficient. In 1x mode, the device operates in linear mode and does not introduce switching noise back onto the supply. Recommended Layout Figure 22. Five LED Application Protection Mode If an LED is disconnected, the output voltage VOUT automatically limits at about 5.5 V. This is to prevent the output pin from exceeding its absolute maximum rating. If the die temperature exceeds +150°C the driver will enter a thermal protection shutdown mode. When the device temperature drops by about 20°C the device will resume normal operation. In charge pump mode, the driver switches internally at a high frequency. It is recommended to minimize trace length to all four capacitors. A ground plane should cover the area under the driver IC as well as the bypass capacitors. Short connection to ground on capacitors CIN and COUT can be implemented with the use of multiple via. A copper area matching the TQFN exposed pad (TAB) must be connected to the ground plane underneath. The use of multiple via improves the package heat dissipation. Figure 23. Recommended Layout http://onsemi.com 12 CAT3636 PACKAGE DIMENSIONS TQFN16, 3x3 CASE 510AD−01 ISSUE A A D e b L E E2 PIN#1 ID PIN#1 INDEX AREA TOP VIEW A1 SIDE VIEW D2 BOTTOM VIEW SYMBOL A A1 A3 b D D2 E E2 e L MIN 0.70 0.00 0.18 2.90 1.40 2.90 1.40 0.30 NOM 0.75 0.02 0.20 REF 0.25 3.00 −−− 3.00 −−− 0.50 BSC 0.40 MAX 0.80 0.05 0.30 3.10 1.80 3.10 1.80 0.50 A1 FRONT VIEW A3 A Notes: (1) All dimensions are in millimeters. (2) Complies with JEDEC MO-220. http://onsemi.com 13 CAT3636 Example of Ordering Information (Note 7) Prefix CAT Device # 3636 Suffix HV3 −G T2 Company ID (Optional) Product Number 3636 Package HV3: TQFN 3 x 3 mm Lead Finish G: NiPdAu Blank: Matte−Tin (Note 8) Tape & Reel (Note 9) T: Tape & Reel 2: 2,000 / Reel 5. 6. 7. 8. 9. All packages are RoHS−compliant (Lead−free, Halogen−free). The standard lead finish is NiPdAu. The device used in the above example is a CAT3636HV3−GT2 (TQFN, NiPdAu Plated Finish, Tape & Reel, 2,000/Reel). For Matte−Tin package option, please contact your nearest ON Semiconductor Sales office. 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. EZDim is a trademark of Semiconductor Components Industries, LLC. Quad−Mode is a registered trademark of Semiconductor Components Industries, LLC (SCILLC). ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada Email: orderlit@onsemi.com 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: 81−3−5773−3850 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative http://onsemi.com 14 CAT3636/D