NCP1093, NCP1094 Integrated IEEE 802.3at PoE-PD Interface Controller Description The NCP1093 and NCP1094 are members of ON Semiconductor's high power HIPOt Power over Ethernet Powered Device (PoE-PD) product family and integrate an IEEE 802.3at PoE-PD interface controller. Both variants incorporate the required functions such as detection, classification, under voltage lockout, inrush and operational current limit. A power good and NCLASS_AT signal have been added to guarantee proper enabling/disabling of the DC-DC controller for both type-I and type-II operation. In addition, the NCP1093 offers a programmable under-voltage while the NCP1094 provides an auxiliary pin for applications supporting auxiliary supplies. The NCP1093 and NCP1094 are fabricated in a robust high voltage process and integrate a rugged vertical N-channel DMOS suitable for the most demanding environments and capable of withstanding harsh environments such as hot swap and cable ESD events. The NCP1093 and NCP1094 complement ON Semiconductor's ASSP portfolio in industrial devices and can be combined with stepper motor drivers, CAN bus drivers and other high-voltage interfacing devices to offer complete solutions to the industrial and security market. * * * * * DFN10 MN SUFFIX CASE 485C PIN CONFIGURATION 1 INRUSH CLASS DET VPORTN1 VPORTN2 VPORTP NCLASS_AT * PGOOD RTN EP** (Top View) *NCP1093 = UVLO NCP1094 = AUX ** Exposed pad should be connected to VPORTN MARKING DIAGRAMS Features * * * * * * * * www.onsemi.com Fully Supports IEEE 802.3af/at Specifications Programmable Classification Current Support Two Event Classification-Signature Adjustable Under Voltage Lock Out (NCP1093 Only) Open-Drain Power Good Indicator 120 mA Typical Inrush Current Limit 680 mA Typical Operational Current Limit Pass Switch Disabling Input for Rear Auxiliary Supply Operation (NCP1094 Only) Over-temperature Protection Industrial Temperature Range -40C to 85C with Full Operation up to 125C Junction Temperature 0.6 W Hot-swap Pass-switch Vertical N-channel DMOS Pass-switch Offers the Robustness of Discrete MOSFETs These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS Compliant NCP10 93MN ALYWG G NCP10 94MN ALYWG G NCP109xMN = Specific Device Code A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb-Free Package (Note: Microdot may be in either location) ORDERING INFORMATION Package Shipping NCP1093MNG DFN10 (Pb-Free) 120 Units / Tube NCP1093MNRG DFN10 (Pb-Free) 3000 / Tape & Reel NCP1094MNG DFN10 (Pb-Free) 120 Units / Tube NCP1094MNRG DFN10 (Pb-Free) 3000 / Tape & Reel Device For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. (c) Semiconductor Components Industries, LLC, 2014 April, 2017 - Rev. 4 1 Publication Order Number: NCP1093/D NCP1093, NCP1094 VPORTP THERMAL SHUTDOWN DETECTION INTERNAL SUPPLY & VOLTAGE REFERENCE DET nCLASS_AT DUAL EVENT CLASSIFICATION INDICATOR CLASS CLASSIFICATION UVLO EXTERNAL SELECTION VPORT MONITOR UVLO NCP1093 only OPERATIONAL CURRENT LIMIT IEEE Interface Shutdown (AUX supply priority) AUX HOT SWAP SWITCH INRUSH INRUSH CURRENT LIMIT NCP1094 only CONTROL & CURRENT LIMIT BLOCKS POWER GOOD INDICATOR PGOOD RTN VPORTN Figure 1. NCP1093/94 Functional Block Diagram www.onsemi.com 2 NCP1093, NCP1094 Simplified Application Diagrams RJ-45 VPORTP Rdet Data Pairs DB1 DET PGOOD To DC-DC Converter Cpd CLASS Cline Z_line Rclass NCP1093 Rinrush INRUSH Ruvlo1 RTN DB2 Spare Pairs UVLO Ruvlo2 NCLASS_AT VPORTN Figure 2. Typical Application Circuit using the NCP1093 with External UVLO Setting RJ-45 VAUX (+) VPORTP Data Pairs Rdet DB1 DET PGOOD Cpd CLASS Cline Z_line Rclass NCP1094 Rinrush INRUSH RTN DB2 AUX Spare Pairs NCLASS_AT VPORTN VAUX (-) Figure 3. Typical Application Circuit using the NCP1094 www.onsemi.com 3 To DC-DC Converter NCP1093, NCP1094 Table 1. PIN DESCRIPTION Pin No. Name NCP1093 NCP1094 Type INRUSH 1 1 Output Current limit programming pin. Connect a resistor between INRUSH and VPORTN. CLASS 2 2 Output Classification current programming pin. Connect a resistor between CLASS and VPORTN. DET 3 3 Output, Open Drain Detection pin. Connect a 24.9 kW resistor between DET and VPORTP for a valid PD detection signature. VPORTN1 4 4 Ground Negative input power. Connected to the source of the internal pass-switch VPORTN2 5 5 Ground Negative input power. Connected to the source of the internal pass-switch RTN 6 6 Ground DC-DC controller power return. Connected to the drain of the internal pass- switch PGOOD 7 7 Output, Open Drain Open Drain Power Good Indicator. Pin is in HZ mode when the power good signal is active. UVLO 8 - Input Undervoltage lockout input. Voltage with respect to VPORTN. Connect a resistor-divider from VPORTP to UVLO to VPORTNx to set an external UVLO threshold. AUX - 8 Input Auxiliary Pin. When this pin is pulled up, the Pass Switch is disabled and allows a supply transition from PSE to the rear auxiliary supply connected between VPORTP and RTN. NCLASS_AT 9 9 Output VPORTP 10 10 Input Exposed Pad EP EP Ground Description Active low enable signal used to verify high power operation Positive input power. Voltage with respect to VPORTN. Exposed pad should be connected to VPORTN. Table 2. ABSOLUTE MAXIMUM RATINGS Symbol Parameter Min Max Units Conditions VPORTP Input power supply -0.3 72 V Voltage with respect to VPORTN RTN Analog ground supply 2 -0.3 72 V Pass-switch in off-state (voltage with respect to VPORTN) CLASS Analog output -0.3 72 V Voltage with respect to VPORTN INRUSH Analog output -0.3 3.6 V Voltage with respect to VPORTN AUX Analog input -0.3 72 V Voltage with respect to VPORTN UVLO Analog input -0.3 3.6 V Voltage with respect to VPORTN PGOOD Analog output -0.3 72 V Voltage with respect to RTN TA Ambient temperature -40 85 C TJ Junction temperature - 125 C TJ, TSD Junction temperature (Note 1) - 175 C TSTG Storage Temperature -55 150 C TqJA Thermal Resistance, Junction to Air (Note 2) 50 C/W ESD-HBM Human Body Model 2 kV per EIA-JESD22-A114 standard ESD-CDM Charged Device Model 500 V per ESD-STM5.3.1 standard ESD-MM Machine Model 200 V per EIA-JESD22-A115-A standard LU Latch-up 100 mA Thermal shutdown condition DFN-10 per JEDEC Standard JESD78 Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. Tj-TSD allowed during error conditions only. It is assumed that this maximum temperature condition does not occur more than 1 hour cumulative during the useful life for reliability reasons. 2. Low qJA is obtained with 2S2P test board (2 signal - 2 plane). High qJA is obtained with double sideboard with minimum pad area and natural convection. Refer to Jedec JESD51 for details. The exposed pad must be connected to the VPORTN ground pin. www.onsemi.com 4 NCP1093, NCP1094 Recommended Operating Conditions Operating conditions define the limits for functional operation and parametric characteristics of the device. Note that the functionality of the device outside the operating conditions described in this section is not warranted. Operating outside the recommended operating conditions for extended periods of time may affect device reliability. Table 3. OPERATING CONDITIONS (All values are with respect to VPORTN unless otherwise noted.) Parameter Symbol Min Typ Max Units Conditions 0 - 57 V VPORT = VPORTP - VPORTN INPUT SUPPLY VPORT Input supply voltage SIGNATURE DETECTION Offset_det1 I(VPORTP) + I(RTN) - 2 5 mA VPORTP = RTN = 1.9 V Rdet = 24.9 KW Sleep_det1 I(VPORTP) + I(RTN) - 15 21 mA VPORTP = RTN = 9.8 V Rdet = 24.9 KW Offset_det2 I(VPORTP) + I(RTN) + I(DET) 73 77 81 mA VPORTP = RTN = 1.9 V Rdet = 24.9 KW Sleep_det2 I(VPORTP) + I(RTN) + I(DET) 390 400 412 mA VPORTP = RTN = 9.8 V Rdet = 24.9 KW Vcl_on Classification current turn-on lower threshold 9.8 11.3 13 V VPORTP rising Vcl_off Classification current turn-off upper threshold 21 - 24 V VPORTP rising Vclass_reg Classification buffer output voltage - 9.8 - V 13 V < VPORTP < 21 V Icl_bias I(vportp) quiescent current during classification - 600 - mA I(class) excluded 13 V < VPORTP < 21 V Iclass0 Class 0: Rclass 4420 W (Note 3) 0 - 4 mA 13 V < VPORTP < 21 V Iclass1 Class 1: Rclass 953 W (Note 3) 9 - 12 mA 13 V < VPORTP < 21 V Iclass2 Class 2: Rclass 549 W (Note 3) 17 - 20 mA 13 V < VPORTP < 21 V Iclass3 Class 3: Rclass 357 W (Note 3) 26 - 30 mA 13 V < VPORTP < 21 V Iclass4 Class 4: Rclass 255 W (Note 3) 36 - 44 mA 13 V < VPORTP < 21 V V_mark Mark event voltage range 5.4 9.7 V I_mark I(VPORTP) + I(Rdet) during mark event range 0.5 - 2 mA - - 12 kW 4.3 4.9 5.4 V CLASSIFICATION dR_mark Vreset Input signature during mark event (Note 4) Classification Reset range VPORTP falling 5.4 V VPORTP 9.7 V VPORTP falling NCLASS_AT 2 EVENT CLASSIFICATION INDICATOR Inclass Nclass_low I(NCLASS_AT) sinking current - - 5 mA NCLASS_AT voltage output low - 0.2 0.5 V I(NCLASS_AT) = 2 mA UVLO - INTERNAL SETTING - NCP1093/94 Vuvlo_on Default turn on voltage - 37 40 V VPORTP rising Vuvlo_off Default turn off voltage 29.6 31 - V VPORTP falling Vhyst_int UVLO internal hysteresis - 6 - V Uvlo_filter UVLO On / Off filter time - 100 - ms For information only 3. A tolerance of 1% on the Rclass resistor is included in the min/max values. 4. Measured with the 2 Point Measurement defined in the IEEE 802.3af standard with 5.4 V and 9.7 V the extreme values for V2 & V1. www.onsemi.com 5 NCP1093, NCP1094 Table 3. OPERATING CONDITIONS (All values are with respect to VPORTN unless otherwise noted.) Symbol Parameter Min Typ Max Units 25 - 50 V 1.2 1.26 V Conditions UVLO - EXTERNAL SETTING - NCP1093 ONLY Vuvlo_pr UVLO external programming range Vuvlo_on2 External UVLO turn on voltage 1.14 Vhyst_off2 External UVLO turn off voltage 0.95 1 1.05 V - 2.5 - mA Uvlo_ipd UVLO internal pull down current VPORTP rising AUXILIARY SUPPLY SETTING - NCP1094 ONLY Aux_h AUX input high level voltage 3.1 - Aux_l AUX input low level voltage - - 0.6 V 100 - - kW For information only Pass-switch Rds-on - 0.6 1 W Measured with I(RTN) = 200 mA I_inrush Inrush current with Rinrush = 169 kW 75 120 170 mA Measured at RTN-VPORTN = 3 V I_ilim Operating current limit with Rinrush = 169 kW 610 680 800 mA Current limit threshold Aux_pd AUX internal pull down resistor V PASS-SWITCH AND CURRENT LIMITING Ron POWER GOOD INDICATOR Vds_pgood_on RTN-VPORTN threshold voltage required for power good status 0.8 1 1.2 V RTN-VPORTN falling Vds_pgood_off RTN-VPORTN latchoff threshold voltage 9 10 11 V RTN-VPORTN rising ms Rising and falling / for information only Pgood_filter Ipgood Vpgood_low PGOOD filter time 100 I(PGOOD) sinking current - - 5 mA PGOOD voltage output low - 0.2 0.5 V I(PGOOD) = 2 mA Voltage with respect to RTN - 600 900 mA VPORTP = 48 V 150 - - C Tj Tj = junction temperature - 15 - C Tj Tj = junction temperature CURRENT CONSUMPTION IvportP I(VPORTP) internal current consumption THERMAL SHUTDOWN TSD Thermal shutdown threshold Thyst Thermal hysteresis THERMAL RATINGS Ta Ambient temperature -40 - 85 C Tj Junction temperature - - 125 C 3. A tolerance of 1% on the Rclass resistor is included in the min/max values. 4. Measured with the 2 Point Measurement defined in the IEEE 802.3af standard with 5.4 V and 9.7 V the extreme values for V2 & V1. www.onsemi.com 6 NCP1093, NCP1094 Under Voltage Lock Out (UVLO) Description of Operation The NCP1093/94 incorporate a fixed under voltage lock out (UVLO) circuit which monitors the input voltage and determines when to turn on the pass switch and charge the dc-dc converter input capacitor before the power up of the application. The NCP1093 offers a fixed or adjustable Vuvlo_on threshold depending if the UVLO pin is used or not. In Figure 5, the UVLO pin is strapped to ground and the Vuvlo_on threshold is defined by the internal level. Powered Device Interface The integrated PD interface supports the IEEE 802.3af defined operating modes: detection signature, current source classification, undervoltage lockout, inrush and operating current limits. The following sections give an overview of these previous processes. Detection During the detection phase, the incremental equivalent resistance seen by the PSE through the cable must be in the IEEE 802.3af standard specification range (23.70 kW to 26.30 kW) for a PSE voltage from 2.7 V to 10.1 V. In order to compensate for the non-linear effect of the diode bridge and satisfy the specification at low PSE voltage, the NCP1093/94 present a suitable impedance in parallel with the 24.9 kW Rdet external resistor. For some types of diodes (especially Schottky diodes), it may be necessary to adjust this external resistor. The Rdet resistor has to be inserted between VPORTP and DET pins. During the detection phase, the DET pin is pulled to ground and goes in high impedance mode (open-drain) once the device exit this mode, reducing thus the current consumption on the cable. VPORTP VPORTN1,2 Figure 5. Default Internal UVLO Configuration (NCP1093 only) To define the UVLO threshold externally, the ULVO pin must be connected to the center of an external resistor divider between VPORTP and VPORTN as shown in Figure 6. In order to guarantee the detection signature, the equivalent input resistor made of the Ruvlo1, Ruvlo2 and Rdet should be equal to 24.9 kW. Classification Once the PSE device has detected the PD device, the classification process begins. In classification, the PD regulates a constant current source that is set by the external resistor RCLASS value on the CLASS pin. Figure 4 shows the schematic overview of the classification block. The current source is defined as: VPORTP 9.8 V Iclass + Rclass Ruvlo1 Class_enable VPORTP UVLO VPORT Rdet DET VPORT VPORTP EN UVLO Ruvlo2 1.2 V VPORTN1,2 CLASS NCP1093 9.8 V Figure 6. Default Internal UVLO Configuration (NCP1093 only) For a Vuvlo_on desired turn-on voltage threshold, Ruvlo1 and Ruvlo2 can be calculated using the following equations: VPORTN Ruvlo + Figure 4. Classification Block Diagram 24.9 k @ Rdet Rdet * 24.9 k The NCP1093/94 is able to detect a dual event classification generated by a type 2 PSE, and flag it using its nCLASS_AT open drain indicator. with Ruvlo1 ) Ruvlo2 + Ruvlo and Ruvlo2 + Power Mode With: Vuvlo_on: Desired Turn-On voltage threshold When the classification hand-shake is completed, the PSE and PD devices move into the operating mode. www.onsemi.com 7 1.2 @ Ruvlo Vuvlo_on NCP1093, NCP1094 Example for a Targeted Uvlo_on of 35 V: and the PD application against excessive transient current and failure on the dc-dc converter output. Once the input supply reached the Vulvo_on level, the charge of Cpd capacitor starts with a current limitation set to to the INRUSH level. When this capacitor is fully charged, the current limit switches without any spikes from the inrush current to the operational current level and the power good indicator on PGOOD pin is turned on. The capacitor is considered to be fully charged once the following conditions are satisfied: 1. The drain-source voltage of the Pass Switch has decreased below the Vds_pgood_on level (typical 1 V) 2. The gate-source voltage of the Pass Switch is sufficiently high (above 2 V typical) which means the current in the pass switch has decreased below the current limit. This mechanism is depicted in the following Figure 7. Let's start with a Rdet of 30.1 k. This gives a Ruvlo of 144 k made with a Ruvlo2 of 4.99 k and a Ruvlo1 of 140 k (closest values from E96 series). Note that there is a pull down current of 2.5 mA typ on the UVLO. Assuming the previous example, this pull down current will create a (non critical) systematic offset of 350 mV on the Uvlon_on level of 35 V. The external UVLO hysteresis on the NCP1093 is about 15 percent typical. Inrush and Operational Current Limitations Both inrush and operational current limit are defined by an external Rinrush resistor connected between INRUSH and VPORTN. The low inrush current limit allows smooth charge of large dc-dc converter input capacitor by limiting the power dissipation over the internal pass switch. In power mode, the operational current limit protects the pass switch PGOOD Pgood_on Inrush current limit 0 Operational current limit 1 Pgood_on Delay 100 mS 1 V / 10 V & detector VDDA1 VDDA1 VDDA1 2V RTN Vds_pgood comparator Vgs_pgood comparator RTN VPORTNx Sense Resistor Pass Switch Figure 7. Inrush and Operational Current Limitation Selection Mechanism PGOOD Indicator The operational current limit and the power good indicator stays active as long as RTN voltage stays below the vds_pgood_off threshold (10 V typical) and the input supply stay above the Vulvo_off level. Therefore, fast and large voltage step lower than 10 V are tolerated on the input without interruption of the converter controller. Higher input transient will not affect the behavior if RTN does not exceed 10 V for more than 100 mS. Such input voltage steps may be introduced by a PSE which is switched to a higher power supply. In case RTN is still above 10 V after this delay, the power good is turned off and the pass switch current limit falls back to the inrush level. The NCP1093/94 integrate a Power Good indicator circuitry indicating the end of the dc-dc converter input capacitor charge, and the enabling of the operational current limit. This indicator is implemented on the PGOOD pin which goes in open drain state when active and which is pulled to ground during turn off. A possible usage of this PGOOD pin is illustrated in Figure 8. During the inrush phase, the converter controller is forced in standby mode due to the PGOOD pin forcing low the under voltage lock out pin of the controller. Once the Cpd capacitor is fully charged, PGOOD goes in open drain state, allowing the start up sequence of the converter controller. www.onsemi.com 8 NCP1093, NCP1094 VPORTP VDD Rdet DET PGOOD Rclass UVLO NCP103x DC-DC Converter Controller Cpd CLASS OVLO NCP109x GATE Rinrush VSS INRUSH RTN VPORTN Figure 8. Power GOOD Implementation NCLASS_AT Dual Event Classification Indicator nCLASS_AT will be pulled low to RTN (ground connection of the DC/DC controller converter). Otherwise, nCLASS_AT will be in high impedance mode. The following Scheme illustrates how the nCLass_AT pin may be configured with the processor of the Powered Device. An optocoupler is here used to guarantee to the full isolation between the cable and the application. The nCLASS AT active low open drain output pin should be used to notify to the microprocessor of the Powered Device that the PSE did a one or two event Hardware Classification. If a 2 event Hardware classification has been done and once the PD application power has been applied, the VPORTP Rdet VDD VSUP DET UVLO PGOOD Type 2PSE DC -DC Converter Controller Cpd CLASS Cl ine Z_line Rclass OVLO NCP 1094 Rinrush VBIAS INRUSH Powered Application GATE VSS VNEG RTN AUX VPORTN nCLASS _AT To VAUX Figure 9. nClass AT indicator / possible implementation with the Powered Device Hereafter are described several scenarios for which the NCP109x will not enable its nCLASS_AT pin during the Powered Mode: The PSE skipped the classification phase The PSE did a 1 event hardware classification (it can be a type 1 PSE or a type 2 PSE with Layer 2 only) The PSE did a 2 event hardware classification but it didn't well control the input voltage in the Mark voltage (it crossed the Reset range for example). As soon as the application is powered by the DC/DC and after its initialization, the microprocessor will check if the PD interface detected a 2 event hardware classification by reading its digital input (IN1 in this example). If this IN1 pin is low, the application knows that the type 2 PSE, and therefore it can consume power till the level specified by the IEEE802.3at standard. Otherwise the application will have to perform a Layer 2 classification with the PSE. www.onsemi.com 9 NCP1093, NCP1094 Auxiliary Supply To support application connected to non-PoE enabled networks and minimize the bill of materials, the NCP1094 supports drawing power from an external supply and allows simplified designs with PoE or auxiliary supply priorities. In most of the cases, the auxiliary supply is connected between VPORTP and RTN with a serial diode between VPORTP and VAUX, as shown in Figure 10. RJ-45 VAUX (+) VPORTP Data Pairs Rdet DB1 DET PGOOD Cpd CLASS Cline Z_line Rclass To DC-DC Converter NCP1094 Rinrush INRUSH RTN DB2 Spare Pairs AUX VPORTN VAUX (-) Figure 10. Auxiliary Supply Dominant PD Interface and the application will remain supplied by the auxiliary supply. The transition will happen without any power conversion interruption since the PGOOD indicator stays active (high impedance state). Figure 11 depicts an other PD application where the POE supply is dominant over the VAUX supply. A diode D1 has been added in order to not corrupt the PD detection signature when the dc-dc converter is supplied by VAUX. The NCP1094 offers an AUX input pin which turns off the pass switch when pulled high. This feature is useful for PD applications where the auxiliary supply has to be dominant over the PoE supply. When the auxiliary supply is inserted on a POE powered application, the pass switch disconnection will move the current path from the PSE to the rear auxiliary supply. Since the current delivered by the PSE will goes below the DC MPS level (specified in IEEE 802.3 af/at standard), the PSE will disconnect the PoE-PD VAUX (+) RJ-45 D1 VPORTP Data Pairs Rdet DB1 DET Cpd CLASS Cline Z_line PGOOD Rclass NCP1094 Rinrush INRUSH RTN Spare Pairs DB2 AUX VPORTN VAUX (-) Figure 11. PoE Supply Dominant PD Interface www.onsemi.com 10 To DC-DC Converter NCP1093, NCP1094 Thermal Shutdown Company or Product Inquiries The NCP1093/94 include a thermal shutdown which protect the device in case of high junction temperature. Once the thermal shutdown (TSD) threshold is exceeded, the classification block, the pass switch and the PGOOD indicator are disabled. The NCP109X returns automatically to normal operation once the die temperature has fallen below the TSD low limit. For more information about ON Semiconductor's Power over Ethernet products visit our Web site at http://www.onsemi.com. www.onsemi.com 11 NCP1093, NCP1094 PACKAGE DIMENSIONS DFN10, 3x3, 0.5P CASE 485C ISSUE E D A B L L L1 PIN ONE REFERENCE 2X 2X 0.15 C ALTERNATE A-1 CCC CCC CCC 0.15 C E ALTERNATE TERMINAL CONSTRUCTIONS TOP VIEW A1 (A3) DETAIL B ALTERNATE A-2 DETAIL A 0.10 C EE CC CC A1 10X 1 ALTERNATE B-2 SEATING PLANE L A3 DETAIL B SOLDERING FOOTPRINT* 2.64 E2 10 6 10X e MILLIMETERS MIN MAX 0.80 1.00 0.00 0.05 0.20 REF 0.18 0.30 3.00 BSC 2.40 2.60 3.00 BSC 1.70 1.90 0.50 BSC 0.19 TYP 0.35 0.45 0.00 0.03 A1 5 WETTABLE FLANK OPTION CONSTRUCTION K DIM A A1 A3 b D D2 E E2 e K L L1 DETAIL B C D2 DETAIL A MOLD CMPD ALTERNATE CONSTRUCTIONS 0.08 C SIDE VIEW EE CC EXPOSED Cu ALTERNATE B-1 A 10X A3 NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: MILLIMETERS. 3. DIMENSION b APPLIES TO PLATED TERMINAL AND IS MEASURED BETWEEN 0.25 AND 0.30 MM FROM TERMINAL. 4. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS. 5. TERMINAL b MAY HAVE MOLD COMPOUND MATERIAL ALONG SIDE EDGE. MOLD FLASHING MAY NOT EXCEED 30 MICRONS ONTO BOTTOM SURFACE OF TERMINAL b. 6. FOR DEVICE OPN CONTAINING W OPTION, DETAIL A AND B ALTERNATE CONSTRUCTION ARE NOT APPLICABLE. WETTABLE FLANK CONSTRUCTION IS DETAIL B AS SHOWN ON SIDE VIEW OF PACKAGE. b BOTTOM VIEW 10X 0.55 PACKAGE OUTLINE 1.90 3.30 0.10 C A B 0.05 C NOTE 3 10X 0.30 0.50 PITCH DIMENSIONS: MILLIMETERS *For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. All brand names and product names appearing in this document are registered trademarks or trademarks of their respective holders. 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