MP4601 White LED Driver For Large Size TV Backlighting The Future of Analog IC Technology DESCRIPTION FEATURES The MP4601 is an integrated white LED driver. It can be applied with MPS patent pending technology to drive up to 60 inch or larger size LCD TV backlighting, in which the LED string voltage can be up to 350V. The novel technology can leverage the LED drive power by regulating only small portion of the LED drive voltage. As a result, working together with a fixed high voltage source, a low voltage LED driver can be used to drive the high voltage LED strings with super high power density, high efficiency and low cost due to the low voltage stress, high switching frequency, and smaller size of passive components. • • • • • • • • • • • MP4601 is a current mode controlled buckboost regulator. With a 12V input VINL and a high voltage source VINH, it can deliver a regulated voltage (VINH to VINH+63V) to drive a LED string with up to 100 LEDs. It can drive an external switch, which is in series with the LED string, to achieve over 1:1000 dimming ratio. Analog dimming can be applied in the same time to further improve the dimming ratio. Fault protection includes LED open strings protection, output short circuit protection, cycle-by-cycle peak current limiting, and thermal shutdown. • • • • • Novel Power Leverage Control Technology Unique Step-up/down Operation Up to 99.5% Efficiency 0.5Ω Internal Power MOSFET Switch Switching Frequency Synchronization Over 1:1000 Dimming Ratio Analog and PWM Dimming ±5% 200mV Reference Voltage 850µA Quiescent Current 10µA Shutdown Mode Programmable Cycle-by-Cycle Over Current Protection Thermal Shutdown Protection LED String Open and Short Protection FAULT Output for Short LED Protection Output Short Circuit Protection Available in TSSOP16-EP and SOIC16 Packages APPLICATIONS • • TV Backlighting Large LCD Panels Backlighting For MPS green status, please visit MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic Power Systems, Inc. MP4601 is available in TSSOP16-EP and SOIC16 packages. MP4601 Rev. 1.0 1/28/2011 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. 1 MP4601 – WHITE LED DRIVER FOR LARGE SIZE TV BACKLIGHTING TYPICAL APPLICATION 120V R3 100k VIN 12V FAULT VIN C1 10 BST MP4601 SW INGND VSS CLK/SYN SYN DGD DIM DIM OVP EN EN R1 800k C OUT 2.2 R2 12k FB FST RFB 2 COMP OCP SLOPE RFST 60k L1 22 CBST 100nF RSC 60k ROCP 100k CCOMP 100pF VOUT Efficiency vs. External Bus Voltage VINL=12V, VLED=240V, ILED=100mA, External bus voltage, VINH=180~236V EFFICIENCY (%) 100 99 98 97 96 95 94 93 92 91 90 180 190 200 210 220 230 240 EXTERNAL VOLTAGE (V) MP4601 Rev. 1.0 1/28/2011 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. 2 MP4601 – WHITE LED DRIVER FOR LARGE SIZE TV BACKLIGHTING ORDERING INFORMATION Part Number Package Top Marking MP4601EF* TSSOP16-EP MP4601EF MP4601ES SOIC16 MP4601ES Free Air Temperature (TA) -20°C to +85°C * For Tape & Reel, add suffix –Z (e.g. MP4601EF–Z); For RoHS Compliant Packaging, add suffix –LF (e.g. MP4601EF–LF–Z) PACKAGE REFERENCE TOP VIEW PIN 1 ID VIN 1 16 BST TOP VIEW FAULT 2 15 SW FAULT 1 16 BST INGND 3 14 VSS VIN 2 15 SW SYN 4 13 DGD INGND 3 14 VSS DIM 5 12 OVP SYN 4 13 DGD EN 6 11 FB DIM 5 12 OVP FST 7 10 COMP SLOPE 8 9 OCP EXPOSED PAD FOR TSSOP20F ONLY TSSOP16-EP EN 6 11 FB FST 7 10 COMP SLOPE 8 9 OCP SOIC16 ABSOLUTE MAXIMUM RATINGS (1) Thermal Resistance VVIN – VSS ........................................ -0.3V to 85V VINGND – VSS ..................................... -0.3V to 85V VSW – VSS ............................ -0.3V to VVIN + 0.3V VBST ...................................................... VSW + 6V VDGD – VSS .....................................-0.3V to +12V VSLOPE, VOCP – VSS ...........................-0.3V to +6V VOVP, VFB, VCOM, VFST – VSS .............-0.3V to +6V VFAULT, VDIM, VSYN, VEN – VINGND .......-0.3V to +6V Continuous Power Dissipation (TA = +25°C) (2) TSSOP16-EP ............................................. 2.7W SOIC16 ...................................................... 1.6W Junction Temperature ...............................150°C Lead Temperature ....................................260°C Storage Temperature ............... -65°C to +150°C TSSOP16-EP ......................... 45 ...... 10... °C/W SOIC16 .................................. 80 ...... 30... °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 JESD5 1-7, 4-layer PCB. (3) Supply Voltage VVIN – VSS ................ 4.5V to 75V VDIM, VEN, VSYN – VINGND ......................... 0V to 5V Operating Junct. Temp (TJ)...... -40°C to +125°C MP4601 Rev. 1.0 1/28/2011 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. 3 MP4601 – WHITE LED DRIVER FOR LARGE SIZE TV BACKLIGHTING ELECTRICAL CHARACTERISTICS VVIN = 12V, PWM and AD Pins floating, RFST=51kΩ, TA = +25°C, VVSS=VINGND=0V, unless otherwise noted. Parameters FB Feedback Voltage FB Input Current VIN UVLO Rising VIN UVLO Hysteresis Shut Down Current Supply Current (Quiescent) Switch-On Resistance Switch Leakage Symbol Condition VFB IFB VFB = 0.2V VVINTH VVINHYS Ioff VEN=0V VPWM = 0V, IQ VFB = 250mV RDS(ON) VVIN=80V, VEN=0V, ISWLK VPWM=0V, VSW=0V Switch Current Limit IS_MAX OCP Output Voltage VOCP Oscillator Frequency fSW FST Output Voltage VFST Fold-back Frequency fSWFB Slope Compensation SSLOPE SLOPE Pin Output Voltage VSLOPE Maximum Duty Cycle Minimum On-Time SYN Input Current Frequency Synchronization Range (5) PWM Dimming OFF Threshold PWM Dimming ON Threshold DMAX ISYN fSW SYN VDIML VDIMH IDGD+ Dim Gate Driver Sinking Current IDGD- VFB = 5mV VFB = 200mV VEN Falling VEN Rising VEN = 3.3V VDGD-VSS=10V, VDIM=0V VDGD-VSS=0V VDIM=2V 1000 µA Ω 2.5 1.1 0.8 200 1 1.2 0.95 280 1.1 µA A 1.3 1.2 390 1.2 V MHz kHz V 160 kHz 36 1 0.3 1 VFB = 0.15V,FST pin open VSYN = 3.3V VSYN = 0V RFST>620kΩ VDIM Falling VDIM Rising VDIM = 3.3V VDIM = 0V Units mV µA V mV µA 10 1.2 0.39 1.1 1.4 0.47 1.2 V/µs V 95 % 100 400 -700 ns 0.1 0.6 µA 2 1.7 36 -3.5 100 VADMIN VADMAX VENL VENH IEN Dim Gate Driver Sourcing Current MP4601 Rev. 1.0 1/28/2011 VFB = VOVP = 0V, FST pin open VFB = VOVP = 0V, RFST = 200kΩ SLOPE pin open RSLOPE = 200kΩ 3.5 70 10 Max 210 0.1 4.1 0.5 OCP pin open FST pin open RFST = 200kΩ Typ 200 850 tON DIM Input Current PWM Dimming Frequency Minimum Analog Dimming Threshold Maximum Analog Dimming Threshold EN OFF Threshold EN ON Threshold EN Input Current Min 190 -0.1 2.7 MHz V V µA 50k 3.8 Hz V V V V µA -25 mA 45 mA 0.7 1.5 0.6 1.7 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. 4 MP4601 – WHITE LED DRIVER FOR LARGE SIZE TV BACKLIGHTING ELECTRICAL CHARACTERISTICS (continued) VVIN = 12V, PWM and AD Pins floating, RFST=51kΩ, TA = +25°C, VVSS=VINGND=0V, unless otherwise noted. Parameters LED Open OV Threshold LED Open OV Hysteresis LED Short Threshold for Immediate Latch-off LED Short Delay for Latch-off Thermal Shutdown Thermal Shutdown Hysteresis Symbol Condition VOVPTH VOVPHYS VFBS 300mV < VFBS < TD_FBS 600mV Min Typ 1.2 0.1 600 Max Units V V mV 480 µs 150 20 °C °C Note: 5) Guaranteed by design. MP4601 Rev. 1.0 1/28/2011 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. 5 MP4601 – WHITE LED DRIVER FOR LARGE SIZE TV BACKLIGHTING PIN FUNCTIONS Pin # SOIC16 Pin # TSSOP 16-EP Name 2 1 VIN 1 2 FAULT 3 3 INGND 4 4 SYN 5 5 DIM 6 6 EN 7 7 FST 8 8 SLOPE 9 9 OCP 10 10 COMP 11 11 FB 12 12 OVP MP4601 Rev. 1.0 1/28/2011 Description Positive Voltage Input Pin. A decoupling cap is needed to prevent large voltage spikes from appearing at the input. Fault condition output, open drain with reference to INGND. FAULT is high-Z during normal operation, and pulled to INGND when short LED protection is triggered. Input Ground Reference. This pin is the reference for the EN/DIM signal. Frequency Synchronization Input Pin. The switching frequency can be synchronized with an external clock, which frequency is higher than the set frequency with FST resistor. Multiple ICs’ frequencies can also be synchronized without the external clock by connecting all SYN pins together. They follow the highest set frequency. PWM Dimming and Analog Dimming Input Pin. For digital dimming, apply a 100Hz to 50kHz square wave signal with amplitude greater than 1.5V to DIM pin. For analog dimming, apply a voltage between 0.7V and 1.5V to DIM pin. When DIM voltage changes from 0.7V to 1.5V, the internal reference for FB regulation changes from 0 to 200mV. A voltage higher than 1.5V at this pin doesn’t modify the internal reference anymore. For combined PWM and analog dimming to get a further high dimming ratio, apply a 100Hz to 50kHz square wave signal with amplitude from 0.7V to 1.5V to DIM pin. DIM pin voltage is high (about 3.3V) if it is floating. Enable Input Pin. A voltage greater than 0.6V will turn on the chip. Frequency Setting Pin. A resistor from FST to VSS setting the switching frequency if there is no SYN input. If left open, switching frequency will be set to internal default value. Programmable Slope Compensation pin. Connect a resistor from SLOPE pin to VSS sets slope compensation peak amplitude. If left open, slope compensation will be set internal default value. Over Current Protection Pin. Connect a resistor ROCP from OCP pin to VSS sets the cycle-by-cycle current limit of the inside power FET. If left open, the current limit is the default value of 2.5A. Output of error amplifier. Connect a 1nF or larger capacitor on COMP pin to VSS to improve the stability and to provide a soft on at start up or PWM dimming. LED Current Feedback Input. MP4601 regulates the voltage across the current sensing resistor between FB and VSS with 200mV. If FB voltage is higher than 300mV for 480us or FB voltage is higher than 600mV, it triggers the LED short protection. Over Voltage Protection Pin. Use one external resistor voltage divider across INGND and VSS to program OVP threshold. Its voltage is referred to VSS. When the OVP pin voltage reaches 1.2V threshold, the switch is turned off and will recover when OVP voltage decreases below 1.1V. When the OVP pin voltage is lower than 0.4V and FB pin voltage is lower than 0.1V, the chip frequency will be folded back. Program the OVP pin voltage from 0.4V to 1.2V for normal operation. www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. 6 MP4601 – WHITE LED DRIVER FOR LARGE SIZE TV BACKLIGHTING PIN FUNCTIONS (continued) Pin # SOIC16 Pin # TSSOP 16-EP Name Description 13 13 DGD 14 14 VSS 15 15 SW 16 16 BST LED Dimming Switch Gate Drive Output Pin. Negative Voltage Output Pin. This pin is the voltage reference for OVP, FB, COMP, SC, DGD and FST pins. This node should be placed away from switching noise sources. Switch Output. SW is the source of the internal MOSFET switch. Connect to the power inductor and cathode of the Schottky rectifier. Bootstrap. A capacitor is connected between SW and BST pins to form a floating supply across the power switch driver. MP4601 Rev. 1.0 1/28/2011 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. 7 MP4601 – WHITE LED DRIVER FOR LARGE SIZE TV BACKLIGHTING TYPICAL PERFORMANCE CHARACTERISTICS VIN=12V, VOUT=20V, ILED=200mA, fPWM=200Hz, OVP point=25V, TA=+25°C, unless otherwise noted. Efficiency vs. VIN PWM Dimming Curve 1 EFFICIENCY (%) 0 .8 0 .6 0 .4 0 .2 0 Analog Dimming Curve 200 180 200 180 160 160 140 140 120 120 100 100 80 80 60 60 40 40 20 20 0 5 15 MP4601 Rev. 1.0 1/28/2011 25 35 VIN (V) 45 55 0 0.2 0.4 0.6 0.8 PWM DIMMING DUTY 1 0 0.6 0.8 1 1.2 1.4 1.6 ANALOG DIMMING VOLTAGE (V) www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. 8 MP4601 – WHITE LED DRIVER FOR LARGE SIZE TV BACKLIGHTING TYPICAL PERFORMANCE CHARACTERISTICS (continued) VIN=12V, VOUT=20V, ILED=200mA, fPWM=200Hz, OVP point=25V, TA=+25°C, unless otherwise noted. Steady State VSW 20V/div. PWM Dimming VSW 20V/div. VOUT 20V/div. EN ON VSW 20V/div. VPWM 5V/div. ILED 200mA/div. VEN 2V/div. ILED 200mA/div. IL 1A/div. ILED 200mA/div. IL 1A/div. IL 500mA/div. 2ms/div. EN OFF VSW 20V/div. VEN 2V/div. ILED 200mA/div. OVP Short LED+ to LED(short recover) VSW 20V/div. VSW 20V/div. VOUT 20V/div. VOUT 20V/div. ILED 100mA/div. ILED 100mA/div. IL 1A/div. IL 500mA/div. IL 1A/div. 1ms/div. 2ms/div. 1ms/div. Short LED+ to VSS VSW 10V/div. VIN 10V/div. ISHORT 2A/div. IL 1A/div. MP4601 Rev. 1.0 1/28/2011 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. 9 MP4601 – WHITE LED DRIVER FOR LARGE SIZE TV BACKLIGHTING BLOCK DIAGRAM Figure 1—Functional Block Diagram MP4601 Rev. 1.0 1/28/2011 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. 10 MP4601 – WHITE LED DRIVER FOR LARGE SIZE TV BACKLIGHTING OPERATION The MP4601 is a current mode regulator. The sensing resistor senses the LED current and feeds it back to an error amplifier, which regulates it to 200mV with an inside compensation network. The COMP pin is the output of the error amplifier. The inductor peak current is proportional to the COMP pin voltage. An increase of the COMP voltage increases the current delivered to the output. LED Open Protection If the LED is open, there is no voltage on the FB pin. The duty cycle will increase until VOVPVVSS reaches the shutdown threshold. The top switch will turn off until the voltage VOVP-VVSS decreases sufficiently. System enjoys autorecovery for the LED open protection. LED Short Protection If the FB voltage is higher than 600mV, immediately IC is latched off and DGD is pulled low. If FB voltage is higher than 300mV for 480µs, IC is also latched off and DGD is pulled low. The EN needs reset to restart the IC. The Fault pin is pulled low when IC is latched off. Dimming Control The MP4601 allows both Analog and PWM dimming. For analog dimming, when the voltage on DIM is from 0.7V to1.5V, the LED current will change from 0% to 100% of the maximum LED current. If the voltage on DIM pin is higher than 1.5V or DIM pin is floated, maximum LED current will be generated. For PWM dimming, a PWM signal with 100Hz to 50kHz frequency, amplitude over 1.5V should be applied to DIM pin. For combined PWM and analog dimming to get a further high dimming ratio, apply a 100Hz to 50kHz PWM signal with its amplitude from 0.7V to 1.5V to DIM pin. DIM pin floated will deliver the maximum LED current. At PWM dimming off interval, an internal switch disconnects the COMP pin capacitor from the output of the error amplifier. Therefore, the COMP voltage is hold at PWM off interval. This feature improves the response speed of the LED current and helps to achieve high dimming ratio. Digital dimming can achieve over 1:1000 dimming ratio with DIM frequency less than 200Hz. MP4601 Rev. 1.0 1/28/2011 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. 11 MP4601 – WHITE LED DRIVER FOR LARGE SIZE TV BACKLIGHTING APPLICATION INFORMATION MP4601 is a Buck-boost mode LED driver. Its novel power leverage control technology provides a high efficiency, low cost solution for TV LED driver. With a high bus voltage VINH and a low supply voltage VINL (typical 12V or 24V, not recommend higher than 60V), MP4601 can drive over 60 inch or larger size panel for over 350V LED string voltage. Setting the LED Current An external resistor RFB is used to set the maximum LED current through the use of the equation: RFB 0.200V = ILED Setting the Switching Frequency An external resistor RFST can be used to set the switching frequency fS through the use of the equation: fS = 0.95MHz ⋅ 60k RFST The equation is effective only for 200kHz to 2MHz frequency programming range. If FST pin is floating or RFST is larger than 500kΩ, the setting frequency is the default value 0.95MHz. Setting the Current Limit An external resistor ROCP can be used to set the cycle-to-cycle current limit ILIM through the use of the equation: ILIM = 4.1A ⋅ 100k − 1.1A ROCP The equation is effective only for a range from 30k to 500k for the programming resistor ROCP. If OCP pin is floating or ROCP is larger than 500kΩ, the current limit is the default value of 2.5A. Setting the Slope Compensation MP4601 employs peak current mode control, which will need slope compensation to avoid sub-harmonic oscillation when duty cycle exceeds 50%. relationship, one can estimate the sense current ramp down slope as: SDOWN = VL ⋅ 0.4 V/µs L Where VL is the voltage across the inductor, and L is the inductor value. To ensure current loop stability, a compensation slope of at least half of the ramp down slope is needed: SSC >= 1 SDOWN 2 An external resistor RSLOPE can be used to set the slope compensation for the current loop through the use of the equation: SSC = 1.2 V 60k ⋅ µs R SLOPE The equation is effective only for a range from 20k to 500k for the programming resistor RSLOPE. If SLOPE pin is floating or RSLOPE is larger than 500kΩ, the slope compensation is set to default value of 1.2V/µs. FAULT condition output MP4601 has an open drain output to indicate FAULT condition. During normal operation, FAULT is high-Z output and user can pull it up to any desired voltage with an external resistor. However, if for some reason, FB is greater than 600mV above VSS, or FB is greater than 300mV above VSS for a pre-determined time of ~480µs, FAULT will be pulled low to INGND level. The Rdson for this pull down switch is ~100Ω. Selecting the Inductor Inductor selection is related to the input voltage, output voltage, and LED current. Select the inductor to make the circuit always operate in continuous current mode (CCM). The inductance is designed as: L= VIN ⋅ VOUT fS ⋅ (VIN + VOUT ) ⋅ ∆IL The current loop has effective sense resistor of 0.4Ω. Given a desired input, output voltage MP4601 Rev. 1.0 1/28/2011 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. 12 MP4601 – WHITE LED DRIVER FOR LARGE SIZE TV BACKLIGHTING Where ∆IL is the inductor peak-to-peak current ripple. Design ∆IL as about 40% to 60% of the inductor average current, which is: IL _ AVG = ILED ⋅ (1 + VOUT ). VIN Make sure the inductor is not saturated at the maximum peak current, which is: IL _ PK = IL _ AVG + 0.5 ⋅ ∆IL . 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. Selecting the Input Capacitor The input capacitor reduces the surge current drawn from the input supply and the switching noise from the device. Ceramic capacitors with X5R or X7R dielectrics are highly recommended because of their low ESR and small temperature coefficients. Enough capacitance is required for limited input voltage ripple ∆VIN, which should be normally less than 5~10% of the DC value. CIN > IL _ AVG ⋅ VOUT fs ⋅ ∆VIN ⋅ (VIN + VOUT ) Selecting the Output Capacitor The output capacitor keeps the output voltage ripple ∆VOUT small (normally less than 1~5% of the DC value) 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. COUT > MP4601 Rev. 1.0 1/28/2011 ILED ⋅ VOUT fs ⋅ ∆VOUT ⋅ (VIN + VOUT ) www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. 13 MP4601 – WHITE LED DRIVER FOR LARGE SIZE BACKLIGHTING TYPICAL APPLICATION CIRCUITS VIN FAULT INGND VSS SYN OVP DIM DGD EN RSC 60K SW BST FB FST COM SLOPE OCP ROCP 100K Figure 2—White LED Driver Application for TV Applications MP4601 Rev. 1.0 1/28/2011 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. 14 MP4601 – WHITE LED DRIVER FOR LARGE SIZE TV BACKLIGHTING PACKAGE INFORMATION TSSOP16-EP 3.30 TYP 0.40 TYP 4.90 5.10 16 9 1.60 TYP 4.30 4.50 PIN 1 ID 1 0.65 BSC 2.80 TYP 6.20 6.60 5.80 TYP 8 TOP VIEW RECOMMENDED LAND PATTERN 0.80 1.05 1.20 MAX SEATING PLANE 0.19 0.30 0.65 BSC 0.00 0.15 0.09 0.20 SEE DETAIL "A" SIDE VIEW FRONT VIEW GAUGE PLANE 0.25 BSC 0o-8o 0.45 0.75 DETAIL A NOTE: 1) ALL DIMENSIONS ARE IN MILLIMETERS. 2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH, PROTRUSION OR GATE BURR. 3) PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION. 4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.10 MILLIMETERS MAX. 5) DRAWING CONFORMS TO JEDEC MO-153, VARIATION ABT. 6) DRAWING IS NOT TO SCALE. MP4601 Rev. 1.0 1/28/2011 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. 15 MP4601 – WHITE LED DRIVER FOR LARGE SIZE TV BACKLIGHTING SOIC16 0.386( 9.80) 0.394(10.00) 0.024(0.61) 9 16 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) 8 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 AC. 6) DRAWING IS NOT TO SCALE. DETAIL "A" NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications. 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. MP4601 Rev. 1.0 1/28/2011 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. 16