MPQ2483 Industrial/Automotive-Grade 55V, 2.5A Programmable Frequency LED Driver Avaiable in AEC-Q100 The Future of Analog IC Technology DESCRIPTION FEATURES The MPQ2483 is a 55V, LED driver suitable for either step-down or inverting step-up/down applications. It achieves 2.5A peak current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes thermal shutdown, cycle-by-cycle peak current limiting, output over voltage protection, open strings protection and output short circuit protection. • • • • • • • • • • The MPQ2483 incorporates both DC and PWM dimming onto a single control pin. The separate input reference ground pin allows for direct enable and/or dimming control for a positive to negative power conversion. • The MPQ2483 requires a minimum number of readily available standard external components and is available in a 10-pin 3mm x 3mm QFN and SOIC 14-pin packages. 2.5A Maximum Peak Current Buck or Buck-Boost Modes Wide 4.5V to 55V Operating Input Range 0.28Ω Internal Power MOSFET Switch Analog and PWM Dimming 0.198V Reference Voltage 5μA Shutdown Mode Stable with Low ESR Capacitors Cycle-by-Cycle Over Current Protection Thermal Shutdown, Over Voltage, Short Circuit & Open String Protection AEC-Q100 Qualified APPLICATIONS • • • General LED Illumination LCD Backlight Panels Automotive Lighting All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For MPS green status, please visit MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION MPQ2483 Rev. 1.05 www.MonolithicPower.com 8/18/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 1 MPQ2483 –INDUSTRIAL GRADE, 2.5A, 55V, PROGRAMABLE FREQUENCY ORDERING INFORMATION Part Number Package MPQ2483DQ* MPQ2483DQ-AEC1 MPQ2483DS** MPQ2483DS-AEC1 QFN-10(3mmx3mm) QFN-10(3mmx3mm) SOIC-14 SOIC-14 Top Marking See Below See Below * For Tape & Reel, add suffix –Z (e.g. MPQ2483DQ–Z). For RoHS compliant packaging, add suffix –LF (e.g. MPQ2483DQ–LF–Z) ** For Tape & Reel, add suffix –Z (e.g. MPQ2483DS–Z). For RoHS compliant packaging, add suffix –LF (e.g. MPQ2483DS–LF–Z) TOP MARKING (MPQ2483DQ) 9M: product code of MPQ2483DQ; Y: year code; W: week code: LLL: lot number; TOP MARKING (MPQ2483DS) MP2483DS: product code of MPQ2483DS; MPS: MPS prefix; YY: year code; WW: week code: LLL: lot number; MPQ2483 Rev. 1.05 www.MonolithicPower.com 8/18/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 2 MPQ2483 –INDUSTRIAL GRADE, 2.5A, 55V, PROGRAMABLE FREQUENCY PACKAGE REFERENCE TOP VIEW TOP VIEW NC 1 14 NC BST VDD 2 13 SW 8 INGND VSS 3 12 BST 4 7 EN/DIM OVP 4 11 INGND 5 6 RSET FB 5 10 EN/DIM COMP 6 9 REST NC 7 8 NC VDD 1 10 SW VSS 2 9 OVP 3 FB COMP QFN-10(3mmx3mm) SOIC-14 ABSOLUTE MAXIMUM RATINGS (1) Thermal Resistance VDD – VSS (0°C≤TJ≤125°C) ........................... 60V VDD – VSS (-40°C≤TJ<0°C) ............................ 58V VSW – VSS ............................ –0.3V to VDD + 0.3V VBST ...................................................... VSW + 6V VOVP – VSS ......................................–0.3V to +6V VEN – VINGND....................................–0.3V to +6V VDIM – VINGND...................................–0.3V to +6V VINGND – VSS ....................................–0.3V to 60V Other pins – VSS ...............................–0.3V to 6V (2) Continuous Power Dissipation (TA = +25°C) QFN-10(3mmx3mm)………………………....2.5W SOIC-14………………………. ……………..1.45W Junction Temperature ...............................150°C Lead Temperature ....................................260°C Storage Temperature.............. –65°C to +150°C QFN-10(3mmx3mm) ...............50 ...... 12 ... °C/W SOIC-14 ..................................86 ...... 38 ... °C/W Recommended Operating Conditions (4) θJA θJC Notes: 1) Exceeding these ratings may damage the device. 2) The maximum allowable power dissipation is a function of the maximum junction temperature TJ (MAX), the junction-toambient thermal resistance θJA, and the ambient temperature TA. The maximum allowable continuous power dissipation at any ambient temperature is calculated by PD (MAX) = (TJ (MAX)-TA)/θJA. Exceeding the maximum allowable power dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanent damage. 3) The device function is not guaranteed outside of the recommended operating conditions. 4) Measured on JESD51-7, 4-layer PCB. (3) Supply Voltage VDD – VSS: 0°C≤TJ≤125°C……………………...4.5V to 55V -40°C≤TJ<0°C……………………..4.5V to 50V Operating Junction Temp. (TJ). -40°C to +125°C MPQ2483 Rev. 1.05 www.MonolithicPower.com 8/18/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 3 MPQ2483 –INDUSTRIAL GRADE, 2.5A, 55V, PROGRAMABLE FREQUENCY ELECTRICAL CHARACTERISTICES VIN = 12V, TJ = -40°C to +125°C, all voltages with respect to VSS. Typical values are at TJ = +25°C, unless otherwise noted. Parameters Symbol Condition Feedback Voltage VFB Feedback Current Switch-On Resistance Switch Leakage IFB Current Limit (5) Oscillator Frequency Default oscillator frequency Min 0.180 0.170 RDS(ON) ILIM fSW fSW_default Fold-back Frequency Maximum Duty Cycle Minimum On-Time Under Voltage Lockout Threshold Rising Under Voltage Lockout Threshold Hysteresis EN Input Current EN OFF Threshold (w/Respect to INGND) EN ON Threshold (w/Respect to INGND) Minimum EN Dimming Threshold Maximum EN Dimming Threshold Supply Current (Quiescent) Shutdown Current Thermal Shutdown Open LED OV Threshold Open LED OV Hysteresis 4.5V ≤ VIN ≤ 12V 12V ≤ VIN ≤ 55V VFB = 0.22V 2 2.7 1.0 2.9 VOVP_ th VOVP_ hys Max 0.215 0.220 1.0 280 VEN = 0V, VSW = 0V -40°C ≤ TJ ≤ 125°C Duty cycle ≤ 61% VFB = 0.19V, Rset=200kΩ VFB = 0.19V, Rset open VFB = 0V, VOVP=0V, Rset open VFB = 0.19V tON IQ Ioff Typ 0.198 0.198 VEN = 2V VEN Falling VEN Rising VFB = 0V VFB = 0.2V VEN = 2V, VFB = 1V VEN=0V 1.1 V uA mΩ μA 3.0 A 0.25 MHz 1.35 1.7 MHz 250 kHz 90 100 3.3 200 1.4 % ns V mV μA V V V V mA μA °C V mV 3.7 0.4 0.55 1.2 Units 0.7 1.4 0.8 3.4 150 1.2 60 0.6 0.85 1.55 1.5 20 1.3 Notes: 5) Derived from part characterization. Not tested in production. MPQ2483 Rev. 1.05 www.MonolithicPower.com 8/18/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 4 MPQ2483 –INDUSTRIAL GRADE, 2.5A, 55V, PROGRAMABLE FREQUENCY PIN FUNCTIONS QFN-10 SOIC-14 (3mmx3mm) Pin # Pin # 2 1 3 2 4 3 5 4 6 5 9 6 10 7 11 8 12 9 13 10 1,7,8,14 Name Description Supply Voltage. The MPQ2483 operates from a +4.5V to +55V unregulated input (with respect to VSS). C1 & C2 is needed to prevent large voltage spikes from appearing at the input. Power Return Pin. Connect to the lowest potential in the circuit, which is typically the anode of the Schottky rectifier. This pin is the voltage reference for the regulated output voltage. For this reason care must be taken in its VSS layout. This node should be placed outside of the D1 to C1 & C2 ground path to prevent switching current spikes from inducing voltage noise into the part. The exposed pad is also connected to this pin. Over Voltage Protection Pin. Use a voltage divider to program OVP threshold. When the OVP pin voltage reaches the shutdown threshold 1.2V, the switch will be turned off and will recover when OVP voltage decreases OVP sufficiently. When the OVP pin voltage (with respect to VSS) is lower than 0.4V and FB pin voltage is lower than 0.1V, the chip recognizes this as short circuit condition and the operating frequency will be folded back. Program the OVP pin voltage from 0.4V to 1.2V for normal operation. LED Current Feedback Input. MPQ2483 regulates the voltage across the current sensing resistor between FB and VSS. Connect the current sensing FB resistor from the bottom of the LED strings to VSS. The FB pin is connected to the bottom of the LED strings. The regulation voltage is 0.198V. Output of error amplifier. Connect a 1nF or larger capacitor on COMP to COMP improve the stability and to provide a soft on at start up and PWM dimming. Frequency Set Pin. Connect a resistor to VSS to set the switching frequency RSET and a 1nF capacitor to VSS to bypass the noise. Leaving this pin open gets a default operating frequency 1.35MHz. On/Off Control Input and Dimming Command Input. A voltage greater than 0.6V will turn on the chip. Both DC and PWM dimming are implemented on this pin. When the EN/DIM pin voltage (with respect to INGND) rises from EN/DIM 0.7V to 1.4V, the LED current will change from 0% to 100% of the maximum LED current. To use PWM dimming, apply a 100Hz to 2kHz square wave signal with amplitude greater than 1.4V to this pin. INGND Input Ground Reference. This pin is the reference for the EN/DIM signal. Bootstrap. A capacitor is connected between SW and BST pin to form a floating supply across the power switch driver. A 100nF or larger ceramic BST capacitor is recommended to provide sufficient energy to drive the power switch’s gate above the supply voltage. Switch Output. SW is the source of the internal MOSFET switch. Connect SW this pin to the power inductor and the cathode of the Schottky rectifier. NC No Connection. Exposed pad should be connected to VSS in step up/down mode. VDD MPQ2483 Rev. 1.05 www.MonolithicPower.com 8/18/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 5 MPQ2483 –INDUSTRIAL GRADE, 2.5A, 55V, PROGRAMABLE FREQUENCY TYPICAL PERFORMANCE CHARACTERISTICS 800 800 700 700 600 600 500 400 300 200 100 5 4.5 500 IPEAK (A) LED CURRENT(mA) LED CURRENT(mA) VIN=20V, ILED=0.7A, two 3W LED in series, step down application, unless otherwise noted. 400 300 200 100 0.2 0.4 0.6 0.8 1 -100 0 400 DIMMING DUTY 3 800 1200 2 1600 0 10 20 30 40 50 60 70 80 90 VEN(mV) DUTY CYCLE(%) IQ vs. Temperature Efficiency vs. Input Voltage 100 95 3.5 2.5 0 0 0 4 2LED 3LED VFB vs. Temperature 1000 250 900 230 800 210 VFB (mV) 90 85 1LED 700 80 170 600 75 70 0 10 20 30 40 50 500 -40 190 -10 20 50 80 110 140 150 -40 -10 20 50 80 110 140 FSW vs. Temperature SWITCH FREQUENCY (kHz) 650 610 570 530 490 450 -40 -10 20 50 80 110 140 AMBIENT TEMPERATURE (oC) MPQ2483 Rev. 1.05 www.MonolithicPower.com 8/18/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 6 MPQ2483 –INDUSTRIAL GRADE, 2.5A, 55V, PROGRAMABLE FREQUENCY TYPICAL PERFORMANCE CHARACTERISTICS (continued) VIN=20V, ILED=0.7A, two 3W LED in series, step down application, unless otherwise noted. PWM Dimming Steady State PWM 5V/div. VIN 10V/div. SW 10V/div. SW 10V/div. IINDUCTOR 500mA/div. IINDUCTOR 500mA/div. IWLED 500mA/div. 400ns/div. IWLED 500A/div. EN on EN 5V/div. SW 10V/div. IINDUCTOR 500mA/div. IWLED 500mA/div. 2ms/div. 40us/div. Short Circuit Protection (short LED+ to INGND) Open LED Protection EN off OVP 500mV/div. EN 5V/div. SW 10V/div. SW 10V/div. SW 10V/div. OVP 1V/div. IINDUCTOR 500mA/div. IINDUCTOR 2A/div. VOUT 5V/div. IWLED 500mA/div. 4us/div. IINDUCTOR 1A/div. ISHORT 2A/div. 20ms/div. 4us/div. MPQ2483 Rev. 1.05 www.MonolithicPower.com 8/18/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 7 MPQ2483 –INDUSTRIAL GRADE, 2.5A, 55V, PROGRAMABLE FREQUENCY TYPICAL PERFORMANCE CHARACTERISTICS (continued) VIN=20V, ILED=0.7A, seven 3W LED in series, Buck-boost application, referred to VSS, unless otherwise noted 800 800 100 700 700 95 600 90 500 85 400 80 300 75 200 70 100 0 65 0 0 0.2 0.4 0.6 0.8 1 60 0 200 400 600 800 1000 1200 1400 1600 0 10 20 MPQ2483 Rev. 1.05 www.MonolithicPower.com 8/18/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 30 40 50 8 MPQ2483 –INDUSTRIAL GRADE, 2.5A, 55V, PROGRAMABLE FREQUENCY FUNCTIONAL BLOCK DIAGRAM M COMP Figure 1: Functional Block Diagram MPQ2483 Rev. 1.05 www.MonolithicPower.com 8/18/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 9 MPQ2483 –INDUSTRIAL GRADE, 2.5A, 55V, PROGRAMABLE FREQUENCY OPERATION The MPQ2483 is a current mode regulator. The EA output voltage is proportional to the peak inductor current. At the beginning of a cycle, M1(Fig1) is off. The EA output voltage is higher than the current sense amplifier output, and the current comparator’s output is low. The rising edge of the 1.35MHz CLK signal sets the RS Flip-Flop. Its output turns on M1(Fig1) thus connecting the SW pin and inductor to the input supply. The increasing inductor current is sensed and amplified by the Current Sense Amplifier. Ramp compensation is summed to the Current Sense Amplifier output and compared to the Error Amplifier output by the PWM Comparator. When the sum of the Current Sense Amplifier output and the Slope Compensation signal exceeds the EA output voltage, the RS FlipFlop is reset and M1 is turned off. The external Schottky rectifier diode (D1) conducts the inductor current. If the sum of the Current Sense Amplifier output and the Slope Compensation signal does not exceed the EA output for a whole cycle, then the falling edge of the CLK resets the Flip-Flop. The output of the Error Amplifier integrates the voltage difference between the feedback and the 0.198V reference. The polarity is a FB pin voltage lower than 0.198V increases the EA output voltage. Since the EA output voltage is proportional to the peak inductor current, an increase in its voltage also increases the current delivered to the output. Open LED Protection If the LED is open, there is no voltage on the FB pin. The duty cycle will increase until OVPVSS reaches the shutdown threshold set by the external resistor divider. The top switch will turn off till the voltage OVP-VSS decreases sufficiently. Dimming Control The MPQ2483 allows both DC and PWM dimming. When the voltage on EN is less than 0.6V, the chip is turned off. For analog dimming, when the voltage on EN is from 0.7V to 1.4V, the LED current will change from 0% to 100% of the maximum LED current. If the voltage on EN pin is higher than 1.4V, maximum LED current will be generated. For PWM dimming, its amplitude (VDIM – VINGND) must exceed 1.4V. The PWM frequency is recommended in range of 100Hz to 2kHz to get a good dimming linearity. Output Short Circuit Protection The MPQ2483 integrates output short circuit protection. When the output is shorted to VSS, the voltage on OVP pin which detects the output voltage gets smaller than 0.4V, and FB pin senses no voltage (<0.1V) as no current goes through the LED. At this condition, the operating frequency is folded back to decrease the power consumption. MPQ2483 Rev. 1.05 www.MonolithicPower.com 8/18/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 10 MPQ2483 –INDUSTRIAL GRADE, 2.5A, 55V, PROGRAMABLE FREQUENCY APPLICATION INFORMATION R E S N E S = V 8 D 9 E 1 IL . 0 Setting the LED Current The external resistor is used to set the maximum LED current (see the schematic on front page) through the use of the equation: Setting the Operating Frequency The resistor on Rset pin is used to set the operating frequency. A 1nF capacitor is recommended to bypass this pin to GND. The relationship between the operating frequency and the Rest resistor is as the following curve. A 20kΩ to 200kΩ Rset resistor is recommended, which sets the operating frequency from around 1.35MHz to 250 kHz. Leaving the RSET pin open will set the operating frequency to the default operating frequency 1.35MHz. Where ΔIL is the inductor ripple current. Choose the inductor ripple current to be 30% of the maximum load current. The maximum inductor peak current is calculated from: IL(MAX ) = ILOAD + ΔI L 2 Under light load conditions below 100mA, a larger inductance is recommended for improved efficiency. Also note that the maximum recommended load current is 2A if the duty cycle exceeds 35%. Selecting the Input Capacitor The input capacitor reduces the surge current drawn from the input supply and the switching noise from the device. The input capacitor impedance at the switching frequency should be less than the input source impedance to prevent high frequency switching current from passing through the input. Ceramic capacitors with X5R or X7R dielectrics are highly recommended because of their low ESR and small temperature coefficients. For most applications, a 4.7µF capacitor is sufficient. Selecting the Output Capacitor The output capacitor keeps the output voltage ripple small and ensures feedback loop stable. The output capacitor impedance should be low at the switching frequency. Ceramic capacitors with X5R or X7R dielectrics are recommended for their low ESR characteristics. For most applications, a 2.2µF ceramic capacitor will be sufficient. Selecting the Inductor (Step-Down Applications, see Figure 3) A 1µH to 47µH inductor with a DC current rating of at least 25% percent higher than the maximum load current is recommended for most applications. For high efficiency, the inductor’s DC resistance should be less than 200mΩ. Refer to Table 2 for suggested surface mount inductors. For most designs, the required inductance value can be derived from the following equation. L= Selecting VSS-INGND Positive Spike Protection Circuit In some applications, such as input power on, LED+ short circuit from LED+ to VSS in both Buck-Boost and Boost applications, when INGND and VSS are not connected together, there is potential risk that VSS-INGND has >0.3V (allowed maximum positive voltage) positive spike, which might cause false actions, even damage. VOUT × ( VIN − VOUT ) VIN × ΔIL × f SW MPQ2483 Rev. 1.05 www.MonolithicPower.com 8/18/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 11 MPQ2483 –INDUSTRIAL GRADE, 2.5A, 55V, PROGRAMABLE FREQUENCY To clamp VSS-INGND positive spike, it is recommended to add a 100Ω resistor from INGND pin to input GND to clamp the current from VSS to INGND, and to add a low forward voltage schottky diode (B160) from VSS to INGND to clamp the negative oscillation voltage. The voltage rating of the schottky diode should be higher than the OVP voltage set by R3 and R4 (Figure 5). PC Board Layout The high current paths (VSS, VDD and SW) should be placed very close to the device with short, direct and wide traces. The input capacitor needs to be as close as possible to the VDD and VSS pins. The external feedback resistors should be placed next to the FB pin. Keep the switch node traces short and away from the feedback network. To extremely high VSS-INGND spike conditions, bigger R2 is needed to clamp the current, and higher current rating D2 is needed too. Figure 2: VSS-INGND Positive Spike Protection Circuit Selecting FB Positive Spike Protection Circuit In applications when there is possibility that FB has abnormal high positive spike, such as Load transients from high to low or LED+ short circuit from LED+ to LED- in Buck, Boost and BuckBoost applications. In applications above, once FB has abnormal high positive spike, false actions, even damage might happen. To protect FB from too high positive spike, it is recommended to add a 10kohm resistor between LED- to FB to clamp the current from LED- to FB, and to add a <2V voltage range zener diode (BZT52C2V0) from FB to VSS to clamp the voltage from FB to VSS. Figure 3: FB Positive Spike Protection Circuit MPQ2483 Rev. 1.05 www.MonolithicPower.com 8/18/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 12 MPQ2483 –INDUSTRIAL GRADE, 2.5A, 55V, PROGRAMABLE FREQUENCY Table 2—Suggested Surface Mount Inductors Manufacturer Toko Cooper TDK Part Number DS84LCB1015AS-4R7N DR73-4R7-R SLF7055T4R7N3R1-3PF Inductance(µH) Max DCR(Ω) Current Rating (A) Dimensions L x W x H (mm3) 4.7 0.038 3.8 8.2*8.1*3.7 4.7 0.0297 3.78 7.35*7.35*3.3 4.7 0.028 3.6 7.1*7.3*5.5 TYPICAL APPLICATION CIRCUITS Figure 4: Step-Down LED Driver Application Figure 5: Step Up/Down LED Driver Application MPQ2483 Rev. 1.05 www.MonolithicPower.com 8/18/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 13 MPQ2483 –INDUSTRIAL GRADE, 2.5A, 55V, PROGRAMABLE FREQUENCY Figure 6: Step-up LED Driver Application MPQ2483 Rev. 1.05 www.MonolithicPower.com 8/18/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 14 MPQ2483 –INDUSTRIAL GRADE, 2.5A, 55V, PROGRAMABLE FREQUENCY PACKAGE INFORMATION QFN-10(3mmx3mm) 2.90 3.10 0.30 0.50 PIN 1 ID MARKING 0.18 0.30 2.90 3.10 PIN 1 ID INDEX AREA 1.45 1.75 PIN 1 ID SEE DETAIL A 10 1 2.25 2.55 0.50 BSC 5 6 TOP VIEW BOTTOM VIEW PIN 1 ID OPTION A R0.20 TYP. PIN 1 ID OPTION B R0.20 TYP. 0.80 1.00 0.20 REF 0.00 0.05 SIDE VIEW DETAIL A NOTE: 2.90 0.70 1) ALL DIMENSIONS ARE IN MILLIMETERS. 2) EXPOSED PADDLE SIZE DOES NOT INCLUDE MOLD FLASH. 3) LEAD COPLANARITY SHALL BE 0.10 MILLIMETER MAX. 4) DRAWING CONFORMS TO JEDEC MO-229, VARIATION VEED-5. 5) DRAWING IS NOT TO SCALE. 1.70 0.25 2.50 0.50 RECOMMENDED LAND PATTERN MPQ2483 Rev. 1.05 www.MonolithicPower.com 8/18/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 15 MPQ2483 –INDUSTRIAL GRADE, 2.5A, 55V, PROGRAMABLE FREQUENCY PACKAGE INFORMATION SOIC-14 0.338(8.55) 0.344(8.75) 0.024(0.61) 8 14 0.063 (1.60) 0.150 (3.80) 0.157 (4.00) PIN 1 ID 0.050(1.27) 0.228 (5.80) 0.244 (6.20) 0.213 (5.40) 7 1 TOP VIEW RECOMMENDED LAND PATTERN 0.053(1.35) 0.069(1.75) SEATING PLANE 0.050(1.27) BSC 0.013(0.33) 0.020(0.51) 0.004(0.10) 0.010(0.25) SEE DETAIL "A" SIDE VIEW FRONT VIEW 0.010(0.25) x 45o 0.020(0.50) GAUGE PLANE 0.010(0.25) BSC 0o-8o 0.016(0.41) 0.050(1.27) 0.0075(0.19) 0.0098(0.25) NOTE: 1) CONTROL DIMENSION IS IN INCHES. DIMENSION IN BRACKET IS IN MILLIMETERS. 2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. 3) PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. 4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.004" INCHES MAX. 5) DRAWING CONFORMS TO JEDEC MS-012, VARIATION AB. 6) DRAWING IS NOT TO SCALE. DETAIL "A" NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. MPQ2483 Rev. 1.05 www.MonolithicPower.com 8/18/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 16