Load Switch with Level-Shift

Transcription

1 Load Switch with Level-Shift Si869DH Marking code: VC SOT-363 SC-7 (6 leads) S 4 ON/OFF R, C 6 PRODUCT SUMMARY R Top View D 3 D V DS (V) - R DS(on) max. ( ) at V GS = 4. V.6 R DS(on) max. ( ) at V GS =. V. R DS(on) max. ( ) at V GS =.8 V.33 Configuration Single FEATURES TrenchFET power MOSFETs:.8 V rated ESD protected: V on input switch, V ON/OFF 6 m low R DS(on).8 to V input. to 8 V logic level control Available Low profile, small footprint SC-7-6 package Adjustable slew-rate Material categorization: for definitions of compliance please see APPLICATIONS Level shifor portable devices S ON/OFF 4 Si869DH Q Q, 3 6 D R, C R ORDERING INFORMATION Package Lead (Pb)-free Lead (Pb)-free and halogen-free SOT-363 Si869DH-T-E3 Si869DH-T-GE3 ABSOLUTE MAXIMUM RATINGS (T A = C, unless otherwise noted) PARAMETER SYMBOL LIMIT UNIT Drain-source voltage (D-S) V DS - Input voltage V IN V ON/OFF voltage V ON/OFF 8 Load current Continuous a, b ±. I L Pulsed b, c ± 3 A Continuous intrinsic diode conduction a I S -.4 Maximum power dissipation a P D W Operating junction and storage temperature range T J, T stg - to + C ESD rating, MIL-STD-883D human body model ( pf, ) ESD kv THERMAL RESISTANCE RATINGS PARAMETER SYMBOL TYPICAL MAXIMUM UNIT Maximum junction-to-ambient (continuous current) a R thja C/W Maximum junction-to-foot (Q) R thjf 44 Notes a. Surface mounted on FR4 board b. V IN = V, V ON/OFF = 8 V, T A = C c. Pulse test: pulse width 3 μs, duty cycle % S8-76-Rev. D, -Mar-8 Document Number: For technical questions, contact: pmostechsupport@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT

2 Si869DH SPECIFICATIONS (T A = C, unless otherwise noted) PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT OFF Characteristics Reverse leakage current I FL V IN = 8 V, V ON/OFF = V - - μa Diode forward voltage V SD I S = -.4 A.4.6. V ON Characteristics Input voltage range a V IN.8 - Drain to source breakdown voltage V V (p-channel) DS V GS = V, I D = - μa On-resistance (p-channel) at A R DS(on) V ON/OFF =. V, V IN =. V, I D = A V ON/OFF =. V, V IN = 4. V, I D =. A V ON/OFF =. V, V IN =.8 V, I D =.7 A V IN-OUT. V, V IN = V, V ON/OFF =. V - - On-state (p-channel) drain-current I D(on) V IN-OUT.3 V, V IN = 3 V, V ON/OFF =. V - - Note a. V IN = < V, V ON/OFF = 8 V, T A = C; recommended application specifications Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. APPLICATION CIRCUITS A Si869DH 4 V IN R R 4 6 Q R, 3 6 C V OUT ON/OFF C o LOAD Q td(on) C i GND 3 3 I L = A C i = µf C o = µf Note: For R switching variations with other V IN /R combinations see Typical Characteristics Switching Variation R at V IN =. V, R = k COMPONENTS R Pull-Up Resistor Typical k to M a R Optional Slew-Rate Control Typical to k a C Optional Slew-Rate Control Typical pf Note a. Minimum R value should be at least x R to ensure Q turn-on The Si869DH is ideally suited for high-side load switching in portable applications. The integrated n-channel level-shift device saves space by reducing external components. The slew rate is set externally so thaise-times can be tailored to different load types. S8-76-Rev. D, -Mar-8 Document Number: For technical questions, contact: pmostechsupport@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT

3 Si869DH TYPICAL CHARACTERISTICS ( C, unless otherwise noted).6. V ON/OFF =. V to 8 V.6. V ON/OFF =. V to 8 V.4.4 (V) V DROP.3. T J = C T J = C (V) V DROP.3. T J = C T J = C I L (A) V DROP vs. I L at V IN = 4. V I L (A) V DROP vs. I L at V IN =. V.6.. V ON/OFF =. V to 8 V.4 V ON/OFF =. V to 8 V V DROP (V).4.3. T J = C T J = C V DROP (V).3. T J = C.. T J = C I L (A) V DROP vs. I L at V IN =.8 V V IN (V) V DROP vs. V IN at I L =.7 A V DROP Variance (V) I L =.7 A V ON/OFF =. V to 8 V V IN =.8 V V IN = 4. V - On-Resistance (Ω) R SS(on) T J = C I L =.7 A V ON/OFF =. V to 8 V T J = C T J - Junction Temperature ( C) V DROP Variance vs. Junction Temperature V IN (V) On-Resistance vs. Input Voltage S8-76-Rev. D, -Mar-8 3 Document Number: For technical questions, contact: pmostechsupport@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT

4 Si869DH TYPICAL CHARACTERISTICS ( C, unless otherwise noted) R DS(on) - On-Resistance (Normalized) I L =.7 A V ON/OFF =. V to 8 V V IN = 4. V V IN =.8 V µs) ( Time I L = A C i = µf C o = µf T J - Junction Temperature ( C) Normalized On-Resistance vs. Junction Temperature t d(on) Switching Variation R at V IN = 4. V, R = k I L = A C i = µf C o = µf I L = A C i = µf C o = µf td(on) Switching Variation R at V IN =. V, R = k t d(on) Switching Variation R at V IN =.8 V, R = k I L = A C i = µf C o = µf I L = A C i = µf C o = µf t d(on) Switching Variation R at V IN = 4. V, R = 3 k t d(on) Switching Variation R at V IN =. V, R = 3 k S8-76-Rev. D, -Mar-8 4 Document Number: For technical questions, contact: pmostechsupport@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT

5 Si869DH TYPICAL CHARACTERISTICS ( C, unless otherwise noted) I L = A C i = µf C o = µf t d(on) Switching Variation R at V IN =.8 V, R = 3 k Normalized Effective Transient Thermal Impedance. Duty Cycle = T JM - T A = P DM Z (t) thja Single Pulse 4. Surface Mounted Square Wave Pulse Duration (s) Notes: Normalized Thermal Transient Impedance, Junction-to-Ambient P DM t t t. Duty Cycle, D = t. Per Unit Base = R thja = C/W Normalized Effective Transient Thermal Impedance. Duty Cycle =..... Single Pulse Square Wave Pulse Duration (s) Normalized Thermal Transient Impedance, Junction-to-Foot - maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package / tape drawings, part marking, and reliability data, see S8-76-Rev. D, -Mar-8 Document Number: For technical questions, contact: pmostechsupport@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT

6 Package Information e b e D E E -B- -A- A A c L Dim Min Nom Max Min Nom Max A A..4 A b c...4. D E E e.6bsc.6bsc e L Nom 7 Nom A ECN: S-3946 Rev. B, 9-Jul- DWG: Document Number: 74 6-Jul-

7 AN86 Dual-Channel LITTLE FOOT 6-Pin SC-7 MOSFET Copper Leadframe Version Recommended Pad Pattern and Thermal Performance INTRODUCTION 6 (mil) 87 (mil) The new dual 6-pin SC-7 package with a copper leadframe enables improved on-resistance values and enhanced thermal performance as compared to the existing 3-pin and 6-pin packages with Alloy 4 leadframes. These devices are intended for small to medium load applications where a miniaturized package is required. Devices in this package come in a range of on-resistance values, in n-channel and p-channel versions. This technical note discusses pin-outs, package outlines, pad patterns, evaluation board layout, and thermal performance for the dual-channel version. 96 (mil) 7 (mil) 3 (mil) (mil) 6 (mil) 3 PIN-OUT Figure shows the pin-out description and Pin identification for the dual-channel SC-7 device in the 6-pin configuration. Both n-and p-channel devices are available in this package the drawing example below illustrates the p-channel device.. (mil) 8 (mil) 6 (mil) 6 (mil) SOT-363 SC-7 (6-LEADS) FIGURE. SC-7 (6 leads) Dual S G 6 D G EVALUATION BOARD FOR THE DUAL- CHANNEL SC7-6 D 3 Top View FIGURE. 4 S The 6-pin SC-7 evaluation board (EVB) shown in Figure 3 measures.6 in. by. in. The copper pad traces are the same as described in the previous section, Basic Pad Patterns. The board allows for examination from the outer pins to the 6-pin DIP connections, permitting test sockets to be used in evaluation testing. For package dimensions see outline drawing SC-7 (6-Leads) ( BASIC PAD PATTERNS See Application Note 86, Recommended Minimum Pad Patterns With Outline Drawing Access for MOSFETs, ( for the SC-7 6-pin basic pad layout and dimensions. This pad pattern is sufficienor the low-power applications for which this package is intended. Increasing the drain pad pattern (Figure ) yields a reduction in thermal resistance and is a preferred footprint. The thermal performance of the dual 6-pin SC-7 has been measured on the EVB, comparing both the copper and Alloy 4 leadframes. This test was then repeated using the -inch PCB with dual-side copper coating. A helpful way of displaying the thermal performance of the 6-pin SC-7 dual copper leadframe is to compare it to the traditional Alloy 4 version. Document Number: 74 -Dec-3

8 AN86 Front of Board SC7-6 Back of Board SC7-6 S G D SC7 6 DUAL D G S vishay.com FIGURE 3. THERMAL PERFORMANCE Junction-to-Foot Thermal Resistance (the Package Performance) COOPER LEADFRAME Room Ambient C Elevated Ambient 6 C Thermal performance for the dual SC-7 6-pin package is measured as junction-to-foot thermal resistance, in which the foot is the drain lead of the device as it connects with the body. The junction-to-foot thermal resistance for this device is typically 8 C/W, with a maximum thermal resistance of approximately C/W. This data compares favorably with another compact, dual-channel package the dual TSOP-6 which features a typical thermal resistance of 7 C/W and a maximum of 9 C/W. P D T J(max) T A R JA P D o C o C 4 o C W P D 8 mw P D T J(max) T A R JA P D o C 6 o C 4 o C W P D 4 mw Although they are intended for low-power applications, devices in the 6-pin SC-7 dual-channel configuration will handle power dissipation in excess of. W. Power Dissipation The typical Rθ JA for the dual-channel 6-pin SC-7 with a copper leadframe is 4 C/W steady-state, compared to 43 C/W for the Alloy 4 version. All figures are based on the -inch FR4 test board. The following example shows how the thermal resistance impacts power dissipation for the dual 6-pin SC-7 package at varying ambient temperatures. Alloy 4 Leadframe ALLOY 4 LEADFRAME Room Ambient C P D T J(max) T A R JA P D o C o C 43 o C W P D 33 mw Elevated Ambient 6 C P D T J(max) T A R JA P D o C 6 o C 43 o C W P D 8 mw TESTING To further aid the comparison of copper and Alloy 4 leadframes, Figures 4 and illustrate the dual-channel 6-pin SC-7 thermal performance on two different board sizes and pad patterns. The measured steady-state values of Rθ JA for the dual 6-pin SC-7 with varying leadframes are as follows: LITTLE FOOT 6-PIN SC-7 ) Minimum recommended pad pattern on the EVB board (see Figure 3). ) Industry standard -inch PCB with maximum copper both sides. Alloy 4 8 C/W 43 C/W Copper 344 C/W 4 C/W The results indicate that designers can reduce thermal resistance (θja) by 34% simply by using the copper leadframe device as opposed to the Alloy 4 version. In this example, a 74 C/W reduction was achieved without an increase in board area. If an increase in board size is feasible, a further C/W reduction can be obtained by utilizing a -inch. PCB area. The Dual copper leadframe versions have the following suffix: Dual: Compl.: Si9xxEDH SixxEDH Document Number: 74 -Dec-3

9 AN Thermal Resistance (C/W) 3 Alloy 4 Copper Thermal Resistance (C/W) 3 Alloy 4 Copper Time (Secs) Time (Secs) FIGURE 4. Dual SC7-6 Thermal Performance on EVB FIGURE. Dual SC7-6 Comparison on -inch PCB Document Number: 74 -Dec-3 3

10 Application Note 86 RECOMMENDED MINIMUM PADS FOR SC-7: 6-Lead.67 (.7) APPLICATION NOTE.96 (.438).4 (.43).6 (.648).6 (.46).6 (.648). (.4) Recommended Minimum Pads Dimensions in Inches/(mm) Return to Index Return to Index Document Number: 76 8 Revision: -Jan-8

11 Legal Disclaimer Notice Vishay Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, Vishay ), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other disclosure relating to any product. Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special, consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular purpose, non-infringement and merchantability. Statements regarding the suitability of products for certain types of applications are based on Vishay s knowledge of typical requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements about the suitability of products for a particular application. It is the customer s responsibility to validate that a particular product with the properties described in the product specification is suitable for use in a particular application. Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over time. All operating parameters, including typical parameters, must be validated for each customer application by the customer s technical experts. Product specifications do not expand or otherwise modify Vishay s terms and conditions of purchase, including but not limited to the warranty expressed therein. Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining applications or for any other application in which the failure of the Vishay product could result in personal injury or death. Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners. 7 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED Revision: 8-Feb-7 Document Number: 9