AP1212

AP1212

Document overview

• Manufacturer or author: Diodes Incorporated
• PDF pages: 12

Technical content

DUAL USB HIGH-SIDE POWER SWITCH AP1212 Rev. 8 1 of 12 NOVEMBER 2010 D S 3 1 0 1 9 www.diodes.com © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN PLEASE USE AP2146 OR AP2156

• Compliant to USB specifications
• Dual independent switches control
• 2.7V to 5.5V input voltage
• 500mA minimum continuous current per port
• 110m Ω typical on-resistance
• 1.25A maximum short circuit current limit
• Independent open-drain fault flag pins
• 110μ A typical on-state supply current
• 1 μA 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)
• USB hubs
• Hot plug-in power supplies
• Battery-charger circuits 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. Typical Application Circuit USB Control 3.3V 5V Power Supply 0.1uF IN FLG1 EN1 FLG2 EN2 OUT1 OUT2 GND 0.1uF 33uF 33uF0.1uF GND VBUS GND VBUS Downstream USB Ports AP1212 ferrite bead ferrite bead ferrite bead ferrite bead Features General Description

Applications

DUAL USB HIGH-SIDE POWER SWITCH AP1212 Rev. 8 2 of 12 NOVEMBER 2010 D S 3 1 0 1 9 www.diodes.com © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN PLEASE USE AP2146 OR AP2156 AP 1212 X S X - 13 Package 13 : Tape & ReelS : SOP-8L Lead Free L : Lead Free Enable H : Active High L : Active Low G : Green Packing Device Package Code Packaging (Note 2) 13” Tape and Reel Quantity Part Number Suffix AP1212XSL-13 S SOP-8L 2500/Tape & Reel -13 AP1212XSG-13 S SOP-8L 2500/Tape & Reel -13 Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html . 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. EN1 EN2 FLG1 FLG2

5 OUT2

( Top View ) Pin Name Description EN1 EN2 Enable: Logic-compatible enable input. (H: active high, L: active low). Do not float. FLG1 FLG2 Fault Flag: Active-low, open-drain output. Indicates over current, UVLO, and thermal shutdown. GND Supply return. IN Supply Input: Output MOSFET drain. Also supplies IC’s internal circuitry. Connect to positive supply. OUT1 OUT2 Switch Output: Output MOSFET source. Typically connect to switched side of load.

Ordering Information

DUAL USB HIGH-SIDE POWER SWITCH AP1212 Rev. 8 3 of 12 NOVEMBER 2010 D S 3 1 0 1 9 www.diodes.com © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN PLEASE USE AP2146 OR AP2156 Block Diagram Charge Pump Charge Pump Driver CurrentLimit UVLO CurrentLimit Driver CS CS OUT1 IN OUT2 FLG1 EN1 EN2 FLG2 Power N-MOSFET Power N-MOSFET Thermal Shutdown Thermal Shutdown Test Circuit (Note 3) EN1 FLG1 FLG2 EN2 OUT1 IN GND OUT2 ON OFF ON OFF 10K R2 10K R1 VCC +5V R3>=10 R4>=10 0.1uF AP1212 Notes: 3. Before EN is asserted, a delay of 10ms minimum from when the supply voltage, Vcc, becomes stable must be allowed.

DUAL USB HIGH-SIDE POWER SWITCH AP1212 Rev. 8 4 of 12 NOVEMBER 2010 D S 3 1 0 1 9 www.diodes.com © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN PLEASE USE AP2146 OR AP2156 Absolute Maximum Ratings (Note 4) Symbol Parameter Rating Unit ESD HBM Human Body Model ESD Protection (Note 5) 500 V ESD MM Machine Model ESD Protection (Note 5) 150 V VIN Supply Voltage +7 V VFLG Fault Flag Voltage +7 V IFLG Fault Flag Current 50 mA VOUT Output Voltage +7 V VEN Control Input Range -0.3 to VIN +2 V TST Storage Temperature -65 to +150 °C MSL Moisture Sensitivity Level 3 - Recommended Operating Conditions (Note 6) Symbol Parameter Min Max Unit VIN Supply Voltage 2.7 5.5 V TA Operating Ambient Temperature -40 125 oC Notes: 4. Exceeding the absolute maximum rating may damage the device. 5. Devices are ESD sensitive. Handling precautions are recommended. Human Body model, tested per JEDEC 22-A114. Machine mode l, tested per JEDEC 22-A115. 6. The device is not guaranteed to function outside its operating rating.

DUAL USB HIGH-SIDE POWER SWITCH AP1212 Rev. 8 5 of 12 NOVEMBER 2010 D S 3 1 0 1 9 www.diodes.com © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN PLEASE USE AP2146 OR AP2156

Electrical Characteristics

(Under the conditions of VIN =+5V and TA =25oC, unless otherwise specified) Symbol Parameter Conditions Min Typ. Max Unit ICC Supply Current Switch off, OUT = open (Note 7) 0.50 5 µA All switches on, OUT = open (Note 7) 110 160 µA VIT Enable Input Threshold (Note 7) 0.8 1.7 2.40 V IEN Enable Input Current V EN = 0V to 5.5V -1 ±0.01 1 µA CEN Enable Input Capacitance 1 pF RDS(ON) Switch Resistance VIN = 2.7V ~ 5.5V, IOUT = 500mA, each switch 110 140 mΩ TOND Output Turn-On Delay RL = 10Ω each output 30 µS TR Output Turn-On Rise Time RL = 10Ω each output 1 mS TOFFD Output Turnoff Delay RL = 10Ω each output 0.5 10 µS TF Output Turnoff Fall Time RL = 10Ω each output 0.5 10 µS ILEAK Output Leakage Current Each output (output disabled) 10 µA IOUT Continuous Load Current Each output 0.6 A IOS Short-circuit Current Limit Each output (enable into load), VOUT = 0V 0.8 1.0 1.25 A ILIM Current-Limit Threshold Ramped load applied to enabled output 1.0 1.2 1.4 A TTS Over-temperature Shutdown Threshold TJ increasing 140 °C TJ decreasing 130 °C RFO Error Flag Output Resistance VIN = 5V, IL = 10mA 10 25 Ω VIN = 3.3V, IL = 10mA 15 40 Ω IFOH Error Flag Off Current V FLAG = 5V 0.01 1 µA UVLO UVLO Threshold VIN = increasing 2.5 V VIN = decreasing 2.3 V θJA Thermal Resistance Junction-to-Ambient SOP-8L 165 °C/W θJC Thermal Resistance Junction-to-Case SOP-8L 26 °C/W

DUAL USB HIGH-SIDE POWER SWITCH AP1212 Rev. 8 6 of 12 NOVEMBER 2010 D S 3 1 0 1 9 www.diodes.com © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN PLEASE USE AP2146 OR AP2156 Typical Performance Characteristics 100 104 108 112 116 120 RL=10ohm T=25℃ On-Resistance vs. Supply Voltage ON-RESISTANCE (ms) SUPPLY VOLTAGE (V) -40 - 20 0 20 40 60 80 100 100 120 110 130 150 140 160 VSUPPLY=3.3V VSUPPLY =5V RL=10ohm On-Resistance vs. Temperature ON-RESISTANCE (ms) TEMPERATURE (O C ) 0.2 0.0 0.4 0.8 1.0 1.2 1.4 CL=47 uF RL=10ohm O C O C -40O C Turn-On Rise Time vs. Supply Voltage RISE TIME (mS) SUPPLY VOLTAGE (V) 0.6 -40 -20 0 20 40 60 80 100 0.2 0.0 0.4 0.6 0.8 1.0 1.2 1.4 RL=10ohm CL=47uF VSUPPLY=3.3V VSUPPLY =5V Turn-On Rise Time vs. Temperature RISE TIME ( mS ) TEMPERATURE (OC) 100 120 140 160 180 200 220 O C O C -40 O C On-Current vs. Supply Voltage CURRENT (≤gA) SUPPLY VOLTAGE (V) -40 -20 0 20 40 60 80 1000 100 120 140 160 180 200 VSUPPLY=3.3V VSUPPLY=5V On-Current vs. Temperature CURRENT (≤gA) TEMPERATURE ( O

DUAL USB HIGH-SIDE POWER SWITCH AP1212 Rev. 8 7 of 12 NOVEMBER 2010 D S 3 1 0 1 9 www.diodes.com © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN PLEASE USE AP2146 OR AP2156 Typical Performance Characteristics (Continued) -50 100 150 200 250 300 350 O C O C -40 O C Off-Current vs. Supply Voltage CURRENT (nA) SUPPLY VOLTAGE (V) -40 -20 0 20 40 60 80 100 -50 100 150 200 250 300 350 VSUPPLY=3.3V VSUPPLY=5V Off-Current vs. Temperature CURRENT (nA) TEMPERATURE ( O 1.0 1.2 1.4 1.6 1.8 2.0 VEN FALLING VEN RISING T=25 O C Enable Threshold vs. Supply Voltage ENABLE THRESHOLD (V) SUPPLY VOLTAGE (V) -40 -20 0 20 40 60 80 100 1.0 1.2 1.4 1.6 1.8 2.0 VIN=5V VEN FALLING VEN RISING Enable Threshold vs. Temperature ENABLE THRESHOLD (V) TEMPERATURE ( O 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 O C O C -40 O C Short-Circuit Current-Limit vs. Supply Voltage CURRENT-LIMIT (A) SUPPLY VOLTAGE (V) - 4 0 - 2 00 2 04 06 08 0 1 0 0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 VSUPPLY=3.3V VSUPPLY=5V Short-Circuit Current-Limit vs. Temperature CURRENT-LIMIT (A) TEMPERATURE ( O

DUAL USB HIGH-SIDE POWER SWITCH AP1212 Rev. 8 8 of 12 NOVEMBER 2010 D S 3 1 0 1 9 www.diodes.com © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN PLEASE USE AP2146 OR AP2156 Typical Performance Characteristics (Continued) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 O C O C -40 O C Current-Limit Threshold vs. Supply Voltage CURRENT-LIMIT THRESHOLD (A) SUPPLY VOLTAGE (V) - 4 0 - 2 00 2 04 06 08 0 1 0 0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 VSUPPLY=3.3V VSUPPLY=5V Current-Limit Threshold vs. Temperature CURRENT-LIMIT (A) TEMPERATURE ( O -40 -20 0 20 40 60 80 100 0.0 0.5 1.0 1.5 2.0 2.5 3.0 VIN FALLING VIN RISING UVLO Threshold vs. Temperature UVLO THRESHOLD (V) TEMPERATURE ( O

DUAL USB HIGH-SIDE POWER SWITCH AP1212 Rev. 8 9 of 12 NOVEMBER 2010 D S 3 1 0 1 9 www.diodes.com © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN PLEASE USE AP2146 OR AP2156 Typical Performance Characteristics (Continued) Turn-On/Turn-Off (AP1212H) Turn-On (AP1212H) TIME (10mS/div.) TIME (200μS/div.) Turn-Off (AP1212H) Enabled Into Short (AP1212H) TIME (2mS/div.) TIME (500μS/div.) Current-Limit Response (AP1212H) Current-Limit Response (AP1212H) TIME (50mS/div.) TIME (20μS/div.) IOUT VEN VFLG VOUT IOUT VIN=5V CL=47μF RL=35Ω Inrush Current 140 mA Inrush Current VEN VFLG VOUT VIN=5V CL=47μF RL=35Ω Output Turn-On Rise Time 140 mA 140 mA VIN=5V CL=47μF RL=35Ω VEN VFLG VOUT IOUT VIN=5V Short-Circuit Current VEN VFLG V I Hysteresis (10OC) VIN=5V CL=47μF Current-Limit Threshold Short-Circuit Current Thermal Shutdown VEN VOUT VIN=5V CL=47μF Current-Limit Threshold Short-Circuit Current VEN VFLG VOUT I

DUAL USB HIGH-SIDE POWER SWITCH AP1212 Rev. 8 10 of 12 NOVEMBER 2010 D S 3 1 0 1 9 www.diodes.com © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN PLEASE USE AP2146 OR AP2156 Functional Description Error Flag An open-drained output of N-channel MOSFET, the FLG output is pulled low to signal the following fault conditions: input under voltage, output current limit, and thermal shutdown. 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. Enable Before EN is asserted, a delay of 10ms minimum from when the supply voltage, Vcc, becomes stable must be allowed. 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. 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.

DUAL USB HIGH-SIDE POWER SWITCH AP1212 Rev. 8 11 of 12 NOVEMBER 2010 D S 3 1 0 1 9 www.diodes.com © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN PLEASE USE AP2146 OR AP2156 (1) SOP-8L ( Top View ) AP1212 X YY WW X X Logo Part Number WW : Week : 01~52; 52 YY : Year : 08, 09,10~ L : Lead Free X : Internal Code represents 52 and 53 week H : Active High L : Active Low G : Green Package Information (All Dimensions in mm) (1) Package Type: SOP-8L 1.27typ 0.3/0.5 7°~9° 4.85/4.95 3.85/3.95 5.90/6.10 0.15/0.25 7°~9° 0.62/0.82 0.10/0.20 Gauge Plane 0.254 Seating Plane 0.35max. 45° Detail "A" Detail "A" 1.30/1.50 1.75max. Land Pattern Recommendation (Unit: mm) 6x-1.27 8x-1.55 8x-0.60 5.4 0°/8° Marking Information

DUAL USB HIGH-SIDE POWER SWITCH AP1212 Rev. 8 12 of 12 NOVEMBER 2010 D S 3 1 0 1 9 www.diodes.com © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN PLEASE USE AP2146 OR AP2156 IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products desc ribed herein 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 Diodes Incorporated website, harmless against all damages. Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthoriz ed sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fee s arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support dev ices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright © 2009, Diodes Incorporated www.diodes.com