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| 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 - 110m typical on-resistance - 1.25A maximum short circuit current limit - Independent open-drain fault flag pins - 110A typical on-state supply current - 1A 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) - 8-pin SOP and PDIP packages 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 Pin Assignments (Top View) 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. EN1 1 FLG1 2 FLG2 3 EN2 4 PDIP/SOP AP1212 8 OUT1 7 IN 6 GND 5 OUT2 This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. Rev. 1.0 1/11 Sep.23, 2004 AP1212 Dual USB High-Side Power Switch Ordering Information AP 12 1 2 X X X X Power Switch Enable H: Active-High L: Active-Low Package S:SOP-8 N:PDIP-8L Lead Free Blank : Normal L : Lead Free Package Packing Blank : Tube A: Taping Block Diagram OUT1 Power N-MOSFET IN CS Power N-MOSFET Unit V V mA V V oC oC KV Rev. 1.0 2/11 FLG1 Driver EN1 Charge Pump Thermal Shutdown Charge Pump Current Limit UVLO Current Limit Driver CS EN2 FLG2 OUT2 Absolute Maximum Ratings (Note 1) Symbol VIN VFLG IFLG VOUT VEN TST TLEAD ESD Rating Parameter Supply Voltage Fault Flag Voltage Fault Flag Current Output Voltage Control Input Range Storage Temperature Lead Temperature Note 3 Rating +7 +7 50 +7 -0.3 to VIN +2 -65 to +150 260 4 Anachip Corp. www.anachip.com.tw Sep.23, 2004 AP1212 Dual USB High-Side Power Switch Operating Ratings (Note 2) Symbol VIN TA JA JA Parameter Supply Voltage Ambient Operating Temperature Thermal Resistance SOP Thermal Resistance PDIP Rating +2.7 to +5.5 -40 to +85 120 100 Unit V oC oC/W oC/W Electrical Characteristics (Under the conditions of V Symbol ICC VIT IEN CEN RDS(ON) TOND TR TOFFD TF ILEAK IOUT IOS ILIM TTS RFO IFOH UVLO 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 IN =+5V and TA=25oC, unless otherwise specified.) Conditions switch off, OUT = open (Note 4) all switches on, OUT = open (Note 4) (Note 4) VEN =0V to 5.5V VIN =2.7V ~ 5.5V, IOUT =500mA, each switch RL =10 each output RL =10 each output RL =10 each output RL =10 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 A A V A pF m S mS S S A A A A oC oC 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 A V V Note 1. Exceeding the absolute maximum rating may damage the device. Note 2. The device is not guaranteed to function outside its operating rating. Note 3. Devices are ESD sensitive. Handling precautions are recommended. Human body model, 1.5k in series with 100pF. Note 4. Off is VEN0.8Vand on is VEN2.4V for the AP1212H. Off is VEN2.4V and on is VEN0.8V for the AP1212L. Anachip Corp. www.anachip.com.tw 3/11 Rev.1.0 Sep.23, 2004 AP1212 Dual USB High-Side Power Switch Typical Performance Characteristics On-Resistance vs. Supply Voltage 120 116 ON-RESISTANCE (m) ON-RESISTANCE (m) 160 150 140 130 120 110 100 90 80 70 On-Resistance vs. Temperature 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=10 RL=10 T=25 C O 60 -40 -20 0 20 40 O 60 80 100 SUPPLY VOLTAGE (V) TEMPERATURE ( C) Turn-On Rise Time vs. Supply Voltage 1.4 1.2 1.0 RISE TIME (mS) 0.8 0.6 0.4 0.2 0.0 2.5 3.0 3.5 4.0 4.5 1.4 1.2 Turn-On Rise Time vs. Temperature RISE TIME (mS) 85 C -40 C 25 C O O O 1.0 0.8 0.6 0.4 0.2 0.0 -40 -20 0 VSUPPLY=5V VSUPPLY=3.3V RL=10 CL=47 F 5.0 5.5 SUPPLY VOLTAGE (V) RL=10 CL=47 F 20 40 O 60 80 100 TEMPERATURE ( C) On-Current vs. Supply Voltage 220 200 180 160 CURRENT ( A) 140 120 100 80 60 40 20 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 200 180 On-Current vs. Temperature 25 C CURRENT ( A) O 160 140 120 100 80 60 40 20 0 -40 -20 0 VSUPPLY=5V -40 C 85 C O O VSUPPLY=3.3V 20 40 O 60 80 100 SUPPLY VOLTAGE (V) TEMPERATURE ( C) Anachip Corp. www.anachip.com.tw 4/11 Rev.1.0 Sep.23, 2004 AP1212 Dual USB High-Side Power Switch Typical Performance Characteristics (Continued) Off-Current vs. Supply Voltage 350 300 250 CURRENT (nA) 350 Off-Current vs. Temperature 300 250 200 150 100 50 0 85 C O CURRENT (nA) 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 O -50 -40 -20 0 20 40 O 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 O 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 60 80 100 SUPPLY VOLTAGE (V) TEMPERATURE ( C) Short-Circuit Current-Limit vs. Supply Voltage 1.6 1.4 Short-Circuit Current-Limit vs. Temperature 1.6 1.4 CURRENT-LIMIT (A) CURRENT-LIMIT (A) 1.2 1.0 0.8 0.6 0.4 0.2 0.0 2.5 3.0 -40 C O 1.2 1.0 0.8 0.6 0.4 0.2 25 C 85 C O O 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) Anachip Corp. www.anachip.com.tw 5/11 Rev.1.0 Sep.23, 2004 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) Anachip Corp. www.anachip.com.tw 6/11 Rev.1.0 Sep.23, 2004 AP1212 Dual USB High-Side Power Switch Functional Characteristics Turn-On/Turn-Off (AP1212H) Turn-On (AP1212H) VEN VIN=5V CL=47F RL=35 VEN Output Turn-On Rise Time VIN=5V CL=47F RL=35 VFLG VFLG VOUT Inrush Current 140 mA VOUT Inrush Current 140 mA IOUT TIME (10mS/div.) Turn-Off (AP1212H) IOUT TIME (200S/div.) Enabled Into Short (AP1212H) VEN VIN=5V CL=47F RL=35 VEN VFLG VFLG VIN=5V VOUT 140 mA VOUT Short-Circuit Current IOUT TIME (2mS/div.) Current-Limit Response (AP1212H) IOUT TIME (500S/div.) Current-Limit Response (AP1212H) VEN VEN VFLG VFLG VIN=5V CL=47F Current-Limit Short-Circuit Current Threshold VIN=5V CL=47F VOUT VOUT Current-Limit Threshold Short-Circuit Current IOUT Thermal Shutdown Hysteresis (10OC) IOUT TIME (20S/div.) TIME (50mS/div.) Anachip Corp. www.anachip.com.tw 7/11 Rev.1.0 Sep.23, 2004 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 Downstream USB Ports D+ Dfeerite bead VBUS 33uF GND feerite bead D+ Dfeerite bead VBUS 33uF GND feerite bead USB Control 5 0.1uF Test Circuit 10K R1 10K R2 ON OFF 10 R3 EN1 FLG1 FLG2 ON OFF EN2 OUT1 IN GND OUT2 0.1uF C1 10 R4 VCC +5V AP1212 Anachip Corp. www.anachip.com.tw 8/11 Rev.1.0 Sep.23, 2004 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. 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 140C for any reason other than overcurrent fault of either one of the two MOSFET switches, the thermal shutdown function turns off both MOSFET switches and signal the error flag. A hysteresis of 10C prevents the MOSFETs from turning back on until the chip temperature drops to below 130C. Supply Filtering A 0.1F to 1F 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 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 33F, 16V tantalum or 100F, 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. Marking Information (Top View) 8 Logo Part Number 5 Enable Type H: Active High L: Active Low Blank: normal L: Lead Free Package ID code: internal Xth week: 01~52 Year: "01" =2001 "02" =2002 ~ AP1212 X YY WW X X 1 PDIP/SOP 4 Anachip Corp. www.anachip.com.tw 9/11 Rev.1.0 Sep.23, 2004 AP1212 Dual USB High-Side Power Switch Package Information (1) Package Type: PDIP-8L D E-PIN O0.118 inch E1 E 15 (4X) PIN #1 INDENT O0.025 DEEP 0.006-0.008 inch 7 (4X) eB A2 A C L B S e B1 B2 Symbol A A1 A2 B B1 B2 C D E E1 e L eB S Dimensions in millimeters Min. Nom. Max. 5.33 0.38 3.1 3.30 3.5 0.36 0.46 0.56 1.4 1.52 1.65 0.81 0.99 1.14 0.20 0.25 0.36 9.02 9.27 9.53 7.62 7.94 8.26 6.15 6.35 6.55 2.54 2.92 3.3 3.81 8.38 8.89 9.40 0.71 0.84 0.97 A1 Dimensions in inches Min. Nom. Max. 0.210 0.015 0.122 0.130 0.138 0.014 0.018 0.022 0.055 0.060 0.065 0.032 0.039 0.045 0.008 0.010 0.014 0.355 0.365 0.375 0.300 0.313 0.325 0.242 0.250 0.258 0.100 0.115 0.130 0.150 0.330 0.350 0.370 0.028 0.033 0.038 Anachip Corp. www.anachip.com.tw 10/11 Rev.1.0 Sep.23, 2004 AP1212 Dual USB High-Side Power Switch Package Information (Continued) (2) Package Type: SOP-8L E H L VIEW "A" D 7 (4X) A2 A 0.015x45 7 (4X) A1 e B y C VIEW "A" Symbol A A1 A2 B C D E e H L y Dimensions In Millimeters Min. Nom. Max. 1.40 1.60 1.75 0.10 0.25 1.30 1.45 1.50 0.33 0.41 0.51 0.19 0.20 0.25 4.80 5.05 5.30 3.70 3.90 4.10 1.27 5.79 5.99 6.20 0.38 0.71 1.27 0.10 0O 8O Dimensions In Inches Min. Nom. Max. 0.055 0.063 0.069 0.040 0.100 0.051 0.057 0.059 0.013 0.016 0.020 0.0075 0.008 0.010 0.189 0.199 0.209 0.146 0.154 0.161 0.050 0.228 0.236 0.244 0.015 0.028 0.050 0.004 0O 8O Anachip Corp. www.anachip.com.tw 11/11 Rev.1.0 Sep.23, 2004 |
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