SY6288 Datasheet. Www.s Manuals.com. R0.58 Silergy
User Manual: Marking of electronic components, SMD Codes DS, DS**, DS***, DS-***, DS=**, DS=***. Datasheets AP131-33W, BD4836FVE, BD4836G, BZT52H-B9V1, BZX384-C47, MAX6314US50D3-T, PDTC114EM, RT8223BGQW, RT9193-15GB, RT9193-15PB, SY6288D1AAC.
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Application Note: AN_SY6288 Low Loss Power Distribution Switch Preliminary Specification General Description Features SY6288 is an ultra-low RDS(ON) switch with current limiting function to protect the power source from over current and short circuit conditions. • • • • Ordering Information • SY6288□(□□)□ Temperature Code Package Code Optional Spec Code • • • • • Temperature Range: -40°C to 85°C Ordering Number SY6288AAAC SY6288ACAC SY6288AFAC SY6288BAAC SY6288BCAC SY6288BFAC SY6288CAAC SY6288CCAC SY6288CFAC SY6288C1CAC SY6288C2CAC SY6288C4CAC SY6288DAAC SY6288DCAC SY6288DFAC SY6288D1AAC SY6288D1CAC SY6288D1FAC SY6288D2CAC Package type SOT23-5 MSOP8 SO8 SOT23-5 MSOP8 SO8 SOT23-5 MSOP8 SO8 MSOP8 MSOP8 MSOP8 SOT23-5 MSOP8 SO8 SOT23-5 MSOP8 SO8 MSOP8 Note 0.6A/Active High 0.6A/Active High 0.6A/Active High 0.6A/Active Low 0.6A/Active Low 0.6A/Active Low 2A/Active High 2A/Active High 2A/Active High 1.5A/Active High 1.5A/Active High 2A/Active High 2A/Active Low 2A/Active Low 2A/Active Low 1.5A/Active Low 1.5A/Active Low 1.5A/Active Low 1.5A/Active Low • • Distribution voltages: 2.5V to 5.5V Over temperature shutdown and automatic retry Reverse blocking (no body diode) At shutdown, OUT can be forced higher than IN Fault flag (OCB) output for over current and fault conditions Automatic output discharge at shutdown Built-in softstart 0.4ms rise time RoHS Compliant and Halogen Free Two Enable polarities and three current levels o SY6288A: Active High/0.6A o SY6288B: Active Low/0.6A o SY6288C: Active High/2A o SY6288C1: Active High/1.5A o SY6288C2: Active High/1.5A o SY6288C4: Active High/2A o SY6288D: Active Low/2A o SY6288D1: Active Low/1.5A o SY6288D2: Active Low/1.5A Compact packages minimize board space: SOT23-5, SO8, MSOP8 UL certification NO. 20100428-E333762 TUV certification NO. R501887690001 Typical Application Circuit Note: A low-ESR 150uF aluminum electrolytic or tantalum between VOUT and GND is strongly recommended. AN_SY6288 Rev. 0.58 Silergy Corp. Confidential-prepared for Customer Use Only 1 AN_SY6288 Pin Configurations (Top View) SOT23-5 MSOP8 SO8 Part Number Package type SY6288AAAC SOT23-5 SY6288ACAC MSOP8 SY6288AFAC SO8 SY6288BAAC SOT23-5 SY6288BCAC MSOP8 SY6288BFAC SO8 SY6288CAAC SOT23-5 SY6288CCAC MSOP8 SY6288CFAC SO8 SY6288C1CAC MSOP8 SY6288C2CAC MSOP8 SY6288C4CAC MSOP8 SY6288DAAC SOT23-5 SY6288DCAC MSOP8 SY6288DFAC SO8 SY6288D1AAC SOT23-5 SY6288D1CAC MSOP8 SY6288D1FAC SO8 SY6288D2CAC MSOP8 Note① : x=year code, y=week code, z= lot number code. Top Mark CWxyz ABTxyz AAJxyz DBxyz ABDxyz AALxyz DFxyz ABUxyz AAMxyz ADKxyz ADLxyz AEXxyz BUxyz ABExyz AANxyz DSxyz ACKxyz ACJxyz AEHxyz ① Functional Pin Description Pin Name IN GND OUT EN- SY6288A/C/C1/C2/C4 ENB- SY6288B/D/D1/D2 OCB AN_SY6288 Rev. 0.58 Pin Number (SO8, MSOP8) 2,3 1 6,7,8 Pin number (SOT23-5) 5 2 1 4 4 5 3 Pin Description Input pin Ground pin Output pin ON/OFF control. Don’t float. EN: high enable. ENB: low enable. Open Drain Fault Flag Silergy Corp. Confidential-prepared for Customer Use Only 2 AN_SY6288 Absolute Maximum Ratings (Note 1) All pins-------------------------- -------------------------------------------------------------------------------- 6V Power Dissipation, PD @ TA = 25°C SOT23-5/MSOP8/SO8--------------------------------------------- 0.4/0.5/0.65W Package Thermal Resistance (Note 2) SOT23-5/MSOP8/SO8, θ JA ------------------------------------------------------------------------ 250/150/90°C/W SOT23-5/MSOP8/SO8, θ JC ------------------------------------------------------------------------ 130/ 65/ 45°C/W Junction Temperature Range ---------------------------------------------------------------------------------- 150°C Lead Temperature (Soldering, 10 sec.) -----------------------------------------------------------------------260°C Storage Temperature Range ----------------------------------------------------------------------------------- -65°C to 150°C ESD Susceptibility (Note 2) HBM (Human Body Mode) ----------------------------------------------------------------------------------- 2kV MM (Machine Mode) ------------------------------------------------------------------------------------------ 200V Recommended Operating Conditions (Note 3) IN----------------------------------------------------------------------------------------------------------------- 2.5V to 5.5V EN/ENB--------------------------------------------------------------------------------------------------------- -0.3V to VIN+0.3V All other pins --------------------------------------------------------------------------------------------------- 0-5.5V Junction Temperature Range -------------------------------------------------------------------------------- -40°C to 125°C Ambient Temperature Range -------------------------------------------------------------------------------- -40°C to 85°C AN_SY6288 Rev. 0.58 Silergy Corp. Confidential-prepared for Customer Use Only 3 AN_SY6288 Electrical Characteristics (VIN = 5V, CL=1uF, per channel, TA = 25°C unless otherwise specified) Parameter Input Voltage Range Symbol VIN Shutdown Input Current ISHDN Quiescent Supply Current IQ FET RON RDS(ON) Current Limit ILIM Short Circuit Output Current IOS Logic-Low Voltage Logic-High Voltage IN UVLO Threshold IN UVLO Hysteresis Turn-ON Time OCB Low Resistance OCB Delay Time OUT Shutdown Discharge Resistance Thermal Shutdown Temperature Thermal Shutdown Hysteresis VIL EN/ EN Threshold Test Conditions Open load, switch off Output grounded, switch off Open load, switch on SOT23-5(SY6288A/B/C/D/D1) MSOP8 (SY6288A/B/C/C1/C4) MSOP8 (SY6288C2/ D1/D2) MSOP8 (SY6288D) SO8( SY6288A/B/C/D/D1) SY6288A/B SY6288C/D SY6288C1 SY6288C2/D2 SY6288D1 SY6288C4 MSOP8 (SY6288D),OUT connected to GND device enabled. VIH VIN,UVLO VIN,HYS TON Min 2.5 Typ 60 60 50 57 65 0.8 2.1 1.6 1.5 1.6 2.5 0.1 0.1 32 80 80 70 70 85 1.2 2.9 2.4 1.75 2.5 2.9 1.2 1.8 Max 5.5 1 1 100 100 90 83 105 1.6 3.7 3.2 2 3.7 3.7 Unit V µA µA µA mΩ mΩ mΩ mΩ mΩ A A A A A A 2.4 A 0.8 V 2 V ROCB TOCB_Delay 0.1 400 10 10 2.4 V V µs Ω ms RDIS 10 Ω TSD 150 °C 20 °C RL=5 Ω, CL=1uF Note 1: Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These are for stress ratings. 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 remain possibility to affect device reliability. Note 2: θ JA is measured in the natural convection at TA = 25°C on a low effective single layer thermal conductivity test board of JEDEC 51-3 thermal measurement standard. Note 3: The device is not guaranteed to function outside its operating conditions AN_SY6288 Rev. 0.58 Silergy Corp. Confidential-prepared for Customer Use Only 4 AN_SY6288 Typical Operating Characteristics (SY6288DFAC) AN_SY6288 Rev. 0.58 Silergy Corp. Confidential-prepared for Customer Use Only 5 AN_SY6288 Output Fall Time vs. VIN ( RL=2.5Ω ) 2400 Rise Time (us) 2100 1800 1500 1200 COUT=1uF 900 COUT=100uF 600 COUT=470uF 300 0 2.5 3 3.5 4 4.5 5 5.5 6 Current Limit (A) VIN (V) AN_SY6288 Rev. 0.58 Silergy Corp. Confidential-prepared for Customer Use Only 6 AN_SY6288 Block diagram AN_SY6288 Rev. 0.58 Silergy Corp. Confidential-prepared for Customer Use Only 7 AN_SY6288 Operation The SY6288 is a current limited P-channel MOSFET power switch designed for high-side load-switching applications. There is no parasitic body diode between drain and source of the MOSFET, so the SY6288 prevents current flow from out to input when out being externally forced to a higher voltage than vin when chip is disabled. Over-current protection When the over-current condition is sensed, the gate of the pass switch is modulated to achieve constant output current. Under output short circuit conditions, the normal current limit folded back 50%. If the over current condition presists for a long enough time, the junction temperature may exceed 150C, and overtemperature protection will shut down the part. Once the chip temperature drops to 130C, the part will restart. Fault Flag (OCB) The OCB output is asserted (active low) when an overtemperature shutdown condition is encountered or after overcurrent condition persists for 10ms. The output remains asserted until the overcurrent or overtemperature condition is removed. Connecting a heavy capacitive load to an enabled device can cause a momentary overcurrent condition; however, no false reporting on OCB occurs due to the 10-ms deglitch circuit. OCB is not deglitched when the switch is turned OFF due to an overtemperature shutdown. Supply Filter Capacitor In order to prevent the input voltage drooping during hot-plug events, a 10uF ceramic capacitor form VIN to GND is strongly recommended. However, higher capacitor values could reduce the voltage droop on the input further. Furthermore, an output short will cause ringing on the input without the input capacitor. It could destroy the internal circuitry when the input transient exceed 6V which is the absolute maximum supply voltage even for a short duration. Output Filter Capacitor Between VOUT and GND, a low-ESR 150uF alumimum electrolytic or tantalum capacitor is strongly recommended to meet the 330mV maximum droop requirement. Standard bypass methods should be used to minimize inductance and resistance between the bypass capacitor and the downsteam connector. This will reduce EMI and improve the transient performance. If long cables are connected to the output terminals, an anti-parallel schottky diode such as BAT54 is suggested to be placed in parallel with the output terminals to absorb the negative ringing due to the cable inductance. PCB Layout Guide For best performance of the SY6288 , the following guidelines must be strictly followed: Locate the ceramic bypass capacitors as close as possible to the VIN pins and VOUT pins of SY6288. Keep all VBUS traces as short and wide as possible and use at least 2 ounce copper for all VBUS traces. Place a ground plane under all circuitry to lower both resistance and inductance and improve DC and transient performance. A low-ESR 150uF aluminum electrolytic or tantalum capacitor between VOUT and GND is strongly recommended. Locate the output capacitor as close to the connectors as possible to lower impedance(mainly inductance) between the port and the capacitor and improve transient performance. Input and output capacitors should be placed closed to the IC and connected to ground plane to reduce noise coupling. AN_SY6288 Rev. 0.58 Silergy Corp. Confidential-prepared for Customer Use Only 8 AN_SY6288 PCB Layout Guide(SO8) PCB Top Over Layer (SO8) PCB Bottom Layer (SO8) PCB Top Layer (SO8) AN_SY6288 Rev. 0.58 Silergy Corp. Confidential-prepared for Customer Use Only 9 AN_SY6288 SOT23-5 Package outline & PCB layout design 0.55 1.50 - 1.70 0.80 2.70 - 3.00 2.40 2.80 - 3.10 0.30 - 0.50 0.95 TYP 0.3 - 0.6 0.01 - 0.1 0.1 - 0.15 0.25 REF Recommended Pad Layout 1.0 - 1.3 0.95 TYP 1.90 TYP Notes: All dimensions are in millimeters. All dimensions don’t include mold flash & metal burr. AN_SY6288 Rev. 0.58 Silergy Corp. Confidential-prepared for Customer Use Only 10 AN_SY6288 5.40 3.80 - 4.00 1.27 TYP 5.80 - 6.20 6.10 1.55 SO8 Package outline & PCB layout design 0.60 0.30 – 0.50 0.60 - 0.85 0.08 - 0.25 4.80 - 5.00 1.40 - 1.60 ° -8 0.25 base 0 45° 0.25 - 0.50 0.18 - 0.25 Recommended Pad Layout 1.27 (TYP) Notes: All dimensions are in millimeters. All dimensions don’t include mold flash & metal burr. AN_SY6288 Rev. 0.58 Silergy Corp. Confidential-prepared for Customer Use Only 11 AN_SY6288 MSOP8 Package outline & PCB layout design 4.70-5.10 5.30 2.85-3.10 1.35 0.65 0.75-0.95 0.40-0.80 0.25 base 0.10-0.25 2.85-3.10 0.05-0.15 0.45 Recommended Pad Layout 0.65 (TYP) Notes: All dimensions are in millimeters. All dimensions don’t include mold flash & metal burr. AN_SY6288 Rev. 0.58 Silergy Corp. Confidential-prepared for Customer Use Only 12 AN_SY6288 Taping & Reel Specification 1. Taping orientation SOT23-5 3.9/4.1 7.7/8.3 1.45/1.55 Feeding direction SOP8 1.45/1.55 11.7/12.3 3.9/4.1 Feeding direction MSOP8 1.45/1.55 11.7/12.3 3.9/4.1 Feeding direction AN_SY6288 Rev. 0.58 Silergy Corp. Confidential-prepared for Customer Use Only 13 AN_SY6288 2. Carrier Tape & Reel specification for packages Package types Tape width (mm) Pocket pitch(mm) Reel size (Inch) Reel width(mm) Trailer length(mm) Leader length (mm) Qty per reel SOT23-5 8 4 7" 8.4 280 160 3000 SOP8 12 8 13" 12.4 400 400 2500 MSOP8 12 8 13" 12.4 400 400 3000 3. Others: NA AN_SY6288 Rev. 0.58 Silergy Corp. Confidential-prepared for Customer Use Only 14 www.s-manuals.com
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