AP1212

AP1212 DUAL USB HIGH-SIDE POWER SWITCH Features • • • • • • • • • • • • • • • • Compliant to USB specifications Dual independent switches control 2.7V to 5.5V input voltage 500mA minimum continuous current per port 110mΩ typical on-resistance 1.25A maximum short circuit current limit Independent open-drain fault flag pins 110μA typical on-state supply current 1μA typical off-state supply current Output can be forced higher than input (off-state) Thermal shutdown 2.4V typical under voltage lockout (UVLO) 1ms turn-on (soft-start) and fast turn-off Enable active-high (H) or active-low (L) SOP-8L: Available in “Green” Molding Compound (No Br, Sb) Lead Free Finish/RoHS Compliant (Note 1) General Description The AP1212 series are dual integrated high-side power switch with independent enable and flag functions, optimized for self-powered and bus-powered Universal Serial Bus (USB) applications. The AP1212 series support the following USB requirements: each switch channel supplies up to 500mA as required by USB downstream devices; the switch’s low on-resistance meets USB voltage drop requirements; fault current is limited to typically 1000mA, well below the UL 25VA safety requirements; and a flag output is available to indicate fault conditions to the local USB controller. Soft start eliminates the momentary voltage drop on the upstream port that may occur when the switch is enabled in bus-powered applications. Additional features include thermal shutdown to prevent catastrophic switch failure from high-current loads, under voltage lockout (UVLO) to ensure that the device remains off unless there is a valid input voltage present, and 3.3V and 5V logic compatible enable inputs. Applications • • • USB hubs Hot plug-in power supplies Battery-charger circuits Ordering Information A P1212 X X X X Enable Active - High H: L : Active - Low Note: Package S : SOP - 8L Lead Free L : Lead Free G : Green Packing U : Tube -13 : Taping 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7. Device (Note 3) AP1212XS Note: Package Packaging Code S SOP-8L Tube Quantity 100 Part Number Suffix -U 13” Tape and Reel Part Number Quantity Suffix 2500/Tape & Reel -13 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be on found our website at http://www.diodes.com/datasheets/ap02001.pdf. AP1212 Rev. 2 1 of 12 www.diodes.com FEBRUARY 2007 © Diodes Incorporated AP1212 DUAL USB HIGH-SIDE POWER SWITCH Pin Assignments (Top View) EN1 1 AP1212 8 OUT1 7 IN 6 GND 5 OUT2 FLG1 2 FLG2 3 EN2 4 SOP-8L Pin Descriptions Name EN1 EN2 FLG1 FLG2 GND IN OUT1 OUT2 Description Enable: Logic-compatible enable input. ( H: active high, L: active low). Do not float. Fault Flag: Active-low, open-drain output. Indicates over current, UVLO, and thermal shutdown. Supply return. Supply Input: Output MOSFET drain. Also supplies IC’s internal circuitry. Connect to positive supply. Switch Output: Output MOSFET source. Typically connect to switched side of load. AP1212 Rev. 2 2 of 12 www.diodes.com FEBRUARY 2007 © Diodes Incorporated AP1212 DUAL USB HIGH-SIDE POWER SWITCH Block Diagram OUT1 Power N-MOSFET IN CS Power N-MOSFET Unit V V mA V V °C V V FEBRUARY 2007 FLG1 Driver EN1 Charge Pump Thermal Shutdown Charge Pump EN2 FLG2 Current Limit UVLO Current Limit Driver CS OUT2 Absolute Maximum Ratings Symbol VIN VFLG IFLG VOUT VEN TST ESD HBM ESD MM (Note 3) Parameter Supply Voltage Fault Flag Voltage Fault Flag Current Output Voltage Control Input Range Storage Temperature Note 3 Note 3 Rating +7 +7 50 +7 –0.3 to VIN +2 -65 to +150 500 150 AP1212 Rev. 2 3 of 12 www.diodes.com © Diodes Incorporated AP1212 DUAL USB HIGH-SIDE POWER SWITCH Operating Ratings Symbol VIN TOP ΘJA ΘJC Note: (Note 4) Parameter Supply Voltage Operating Junction Temperature Thermal Resistance SOP Junction to Ambient Thermal Resistance SOP Junction to Case Rating +2.7 to +5.5 -40 to +125 165 26 Unit V °C °C/W °C/W 3. Exceeding the absolute maximum rating may damage the device. 4. The device is not guaranteed to function outside its operating rating. Electrical Characteristics (Under the conditions of VIN =+5V and TA =25oC, unless otherwise specified) Symbol ICC VIT IEN CEN RDS(ON) TOND TR TOFFD TF ILEAK IOUT IOS ILIM TTS RFO IFOH UVLO Note: Parameter Supply Current Enable Input Threshold Enable Input Current Enable Input Capacitance Switch Resistance Output Turn-On Delay Output Turn-On Rise Time Output Turnoff Delay Output Turnoff Fall Time Output Leakage Current Continuous Load Current Short-circuit Current Limit Current-Limit Threshold Over-temperature Shutdown Threshold Error Flag Output Resistance Error Flag Off Current UVLO Threshold Conditions Switch off, OUT = open (Note 6) All switches on, OUT = open (Note 6) (Note 6) VEN = 0V to 5.5V VIN = 2.7V ~ 5.5V, IOUT = 500mA, each switch RL = 10Ω each output RL = 10Ω each output RL = 10Ω each output RL = 10Ω each output Each output (output disabled) Each output Each output (enable into load), VOUT = 0V Ramped load applied to enabled output TJ increasing TJ decreasing VIN = 5V, IL = 10mA VIN = 3.3V, IL = 10mA VFLAG = 5V VIN = increasing VIN = decreasing Min. Typ. 0.50 110 Max. 5 160 2.40 1 140 Unit µA µA V µA pF mΩ µS mS µS µS µA A A A °C °C Ω Ω µA V V 0.8 -1 1.7 ±0.01 1 110 30 1 0.5 0.5 10 10 10 1.25 1.4 0.6 0.8 1.0 1.0 1.2 140 130 10 15 0.01 2.5 2.3 25 40 1 5. Devices are ESD sensitive. Handling precautions are recommended. Human Body model, tested per JEDEC 22-A114. Machine model, tested per JEDEC 22-A115. 6. Off is VEN≦0.8V and on is VEN≧2.4V for the AP1212H. Off is VEN≧2.4V and on is VEN≦0.8V for the AP1212L. AP1212 Rev. 2 4 of 12 www.diodes.com FEBRUARY 2007 © Diodes Incorporated AP1212 DUAL USB HIGH-SIDE POWER SWITCH Typical Performance Characteristics On-Resistance vs. Supply Voltage 120 ON-RESISTANCE (ms) 160 150 140 130 120 110 100 90 80 70 60 - 40 On-Resistance vs. Temperature 116 ON-RESISTANCE (ms) 112 108 104 100 96 92 88 2.5 3.0 3.5 4.0 4.5 5.0 5.5 VSUPPLY =5V VSUPPLY=3.3V RL =10ohm T=25℃ RL=10ohm - 20 0 20 40 60 80 100 SUPPLY VOLTAGE (V) TEMPERATURE (O C ) Turn-On Rise Time vs. Supply Voltage 1.4 1.2 RISE TIME ( m S ) 1.4 1.2 Turn-On Rise Time vs. Temperature RISE TIME ( mS ) 1.0 0.8 0.6 0.4 VSUPPLY =5V 1.0 0.8 0.6 0.4 0.2 0.0 85 C -40OC O 25 C O VSUPPLY=3.3V RL=10ohm CL=47uF -40 -20 0 20 40 60 TEMPERATURE (OC) 80 100 RL=10ohm 0.2 0.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 SUPPLY VOLTAGE (V) CL=47 uF On-Current vs. Supply Voltage 220 200 180 160 140 120 100 80 60 40 20 0 2.5 200 180 CURRENT (≤gA) 160 140 120 100 80 60 40 20 0 -40 On-Current vs. Temperature CURRENT (≤gA) 25 C O VSUPPLY =5V -40 C 85OC O VSUPPLY =3.3V 3.0 3.5 4.0 4.5 SUPPLY VOLTAGE (V) 5.0 5.5 -20 0 20 40 O 60 80 100 TEMPERATURE ( C) AP1212 Rev. 2 5 of 12 www.diodes.com FEBRUARY 2007 © Diodes Incorporated AP1212 DUAL USB HIGH-SIDE POWER SWITCH Typical Performance Characteristics (Continued) Off-Current vs. Supply Voltage 350 300 250 CURRENT (nA) CURRENT (nA) 350 O Off-Current vs. Temperature 300 250 200 150 100 50 85 C 200 150 100 50 0 -50 2.5 3.0 3.5 4.0 VSUPPLY=5V VSUPPLY=3.3V 25 C O -40 C 4.5 5.0 5.5 -50 -40 -20 0 20 40 O O 0 60 80 100 SUPPLY VOLTAGE (V) TEMPERATURE ( C) Enable Threshold vs. Supply Voltage 2.0 2.0 Enable Threshold vs. Temperature ENABLE THRESHOLD (V) ENABLE THRESHOLD (V) 1.8 1.8 VEN RISING 1.6 1.6 VEN RISING 1.4 VEN FALLING 1.4 VEN FALLING 1.2 VIN=5V 1.2 T=25 C 1.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 1.0 -40 -20 0 20 40 O O 60 80 100 SUPPLY VOLTAGE (V) TEMPERATURE ( C) Short-Circuit Current-Limit vs. Supply Voltage 1.6 1.4 CURRENT-LIMIT (A) Short-Circuit Current-Limit vs. Temperature 1.6 1.4 -40 C 25 C 85 C O O CURRENT-LIMIT (A) 1.2 1.0 0.8 0.6 0.4 0.2 0.0 2.5 3.0 O 1.2 1.0 0.8 0.6 0.4 0.2 VSUPPLY=5V VSUPPLY=3.3V 3.5 4.0 4.5 5.0 5.5 0.0 -40 -20 0 20 40 O 60 80 100 SUPPLY VOLTAGE (V) TEMPERATURE ( C) AP1212 Rev. 2 6 of 12 www.diodes.com FEBRUARY 2007 © Diodes Incorporated AP1212 DUAL USB HIGH-SIDE POWER SWITCH Typical Performance Characteristics (Continued) Current-Limit Threshold vs. Supply Voltage 1.6 CURRENT-LIMIT THRESHOLD (A) 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 1.6 O Current-Limit Threshold vs. Temperature 1.4 CURRENT-LIMIT (A) -40 C 25 C 85 C O O 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -40 -20 0 20 VSUPPLY=5V VSUPPLY=3.3V 40 O 60 80 100 SUPPLY VOLTAGE (V) TEMPERATURE ( C) UVLO Threshold vs. Temperature 3.0 2.5 UVLO THRESHOLD (V) 2.0 1.5 1.0 0.5 0.0 -40 VIN RISING VIN FALLING -20 0 20 40 O 60 80 100 TEMPERATURE ( C) AP1212 Rev. 2 7 of 12 www.diodes.com FEBRUARY 2007 © Diodes Incorporated AP1212 DUAL USB HIGH-SIDE POWER SWITCH Functional Characteristics Turn-On/Turn-Off (AP1212H) Turn-On (AP1212H) VEN VIN=5V CL=47µF RL=35Ω VEN Output Turn-On Rise Time VIN=5V CL=47µF RL=35Ω VFLG VFLG VOUT Inrush Current 140 mA VOUT Inrush Current 140 mA IOUT TIME (10mS/div.) Turn-Off (AP1212H) IOUT TIME (200µS/div.) Enabled Into Short (AP1212H) VEN VIN=5V CL=47µF RL=35Ω VEN VFLG VFLG VIN=5V VOUT 140 mA V Short-Circuit Current IOUT TIME (2mS/div.) Current-Limit Response (AP1212H) I TIME (500µS/div.) Current-Limit Response (AP1212H) VEN VEN VIN=5V CL=47µF VFLG VIN=5V CL=47µF Current-Limit Threshold Short-Circuit Current VOUT Current-Limit Short-Circuit Current Threshold VOUT Thermal Shutdown Hysteresis (10OC) I TIME (20µS/div.) TIME (50mS/div.) AP1212 Rev. 2 8 of 12 www.diodes.com FEBRUARY 2007 © Diodes Incorporated AP1212 DUAL USB HIGH-SIDE POWER SWITCH Typical Application Circuit Power Supply 3.3V 5V 7 0.1uF 2 FLG1 1 EN1 3 FLG2 4 EN2 OUT2 GND 6 IN OUT1 AP1212 8 0.1uF D+ Dferrite bead VBUS 33uF GND ferrite bead D+ Dferrite bead VBUS 33uF GND ferrite bead Downstream USB Ports USB Control 5 0.1uF Test Circuit VCC +5V 10K R2 ON OFF R3>=10 10K R1 EN1 FLG1 OUT1 IN C1 0.1uF R4>=10 FLG2 ON OFF EN2 GND OUT2 AP1212 AP1212 Rev. 2 9 of 12 www.diodes.com FEBRUARY 2007 © Diodes Incorporated AP1212 DUAL USB HIGH-SIDE POWER SWITCH Function Description Error Flag An open-drained output of N-channel MOSFET, the FLG output is pulled low to signal the following fault conditions: input undervoltage, output current limit, and thermal shutdown. Supply Filtering A 0.1µF to 1µF bypass capacitor from IN to GND, located near the device, is strongly recommended to control supply transients. Without a bypass capacitor, an output short may cause sufficient ringing on the input (from supply lead inductance) to damage internal control circuitry. Transient Droop Requirements USB applications support dynamic attachment (hot plug-in) of peripherals. A current surge is caused by the input capacitance of downstream device. Ferrite beads are recommended in series with all power and ground connector pins. Ferrite beads reduce EMI and limit the inrush current during hot-attachment by filtering high-frequency signals. Current Limit The current limit threshold is preset internally. It protects the output MOSFET switches from damage due to undesirable short circuit conditions or excess inrush current often encountered during hot plug-in. The low limit of the current limit threshold of the AP1212 allows a minimum current of 0.5A through the MOSFET switches. A current limit condition will signal the error flag. Thermal Shutdown When the chip temperature exceeds 140ºC for any reason other than over current fault of either one of the two MOSFET switches, the thermal shutdown function turns off both MOSFET switches and signals the error flag. A hysteresis of 10ºC prevents the MOSFETs from turning back on until the chip temperature drops to below 130ºC. Short Circuit Transient Bulk capacitance provides the short-term transient current needed during a hot-attachment event. With a 33µF, 16V tantalum or 100µF, 10V electrolytic capacitor mounted close to downstream connector per port should provide transient drop protection. Printed Circuit Layout The power circuitry of USB printed circuit boards requires a customized layout to maximize thermal dissipation and to minimize voltage drop and EMI. AP1212 Rev. 2 10 of 12 www.diodes.com FEBRUARY 2007 © Diodes Incorporated AP1212 DUAL USB HIGH-SIDE POWER SWITCH Marking Information SOP-8L (Top View) 8 Logo Part Number 5 Enable Type H : Active High L : Active Low L : Lead Free G : Green ID code: internal Xth week: 01~52 Year: "01" =2001 "02" =2002 ~ AP12 12 X YY WW X X 1 SOP-8L 4 Device AP1212XS Package SOP-8L Identification Code AP1212 Package Information Package Type: SOP-8L 3.70/4.10 5.79/6.20 0.08/0.25 0.254 0.38/1.27 Gauge Plane Seating Plane Detail "A" 7°~9° 1.30/1.50 1.75max. 0.20typ 7°~9° 0.35max. 45° Detail "A" 3.70/4.10 1.27typ 4.80/5.30 0.3/0.5 AP1212 Rev. 2 11 of 12 www.diodes.com FEBRUARY 2007 © Diodes Incorporated AP1212 DUAL USB HIGH-SIDE POWER SWITCH IMPORTANT NOTICE Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages. LIFE SUPPORT Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the President of Diodes Incorporated. AP1212 Rev. 2 12 of 12 www.diodes.com FEBRUARY 2007 © Diodes Incorporated