AP1202LSLA

AP1202 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 - 0.75A 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) - 8-pin SOP and PDIP packages General Description The AP1202 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 AP1202 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 650mA, 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 AP1202 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. 0.4 1/11 Feb.10, 2004 AP1202 Dual USB High-Side Power Switch Ordering Information AP 12 0 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 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 Unit V V mA V V oC oC KV Anachip Corp. www.anachip.com.tw 2/11 Rev 0.4 Feb.10, 2004 AP1202 Dual USB High-Side Power Switch Operating Ratings (Note 2) Symbol VIN TA ΘJA ΘJA Parameter Supply Voltage Ambient Operating Temperature Thermal Resistance SOIC Thermal Resistance DIP Rating +2.7 to +5.5 -40 to +85 120 100 Unit V oC oC/W oC/W Electrical Characteristics (Under Operating Conditions) 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; TA=25oC; unless noted. 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 =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), 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 oC oC 0.8 -1 1.7 ± 0.01 1 110 30 1 0.5 0.5 10 10 10 0.7 0.90 0.6 0.50 0.60 0.6 0.75 140 130 10 15 0.01 2.5 2.3 25 40 1 Ω Ω µA 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 recommended. Human body model, 1.5k in series with 100pF. Note 4. Off is VEN≦0.8Vand on is VEN≧2.4V for the AP1202H. Off is VEN≧2.4V and on is VEN≦0.8V for the AP1202L. Anachip Corp. www.anachip.com.tw 3/11 Rev 0.4 Feb.10, 2004 AP1202 Dual USB High-Side Power Switch Typical Performance Characteristics On-Resistance vs. Supply Voltage 120 116 ON-RESISTANCE (mΩ) ON-RESISTANCE (mΩ) 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=10Ω RL=10Ω 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 Turn-On Rise Time vs. Temperature 1.2 1.0 25 C O VSUPPLY=5V 85 C -40 C O O RISE TIME (mS) 0.8 0.6 0.4 0.2 0.0 -40 -20 0 20 40 O VSUPPLY=3.3V RL=10Ω CL=47μ F 60 80 100 TEMPERATURE ( C) RL=10Ω CL=47μ F 5.0 5.5 SUPPLY VOLTAGE (V) On-Current vs. Supply Voltage 220 200 180 160 CURRENT (μ 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 (μ 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 0.4 Feb.10, 2004 AP1202 Dual USB High-Side Power Switch Typical Performance Characteristics (Continued) Off-Current vs. Supply Voltage 350 300 250 CURRENT (nA) 350 O Off-Current vs. Temperature 300 250 200 150 100 50 0 85 C 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 1.0 Short-Circuit Current-Limit vs. Temperature 1.0 25 C CURRENT-LIMIT (A) 0.8 O 0.8 -40 C 0.6 O CURRENT-LIMIT (A) VSUPPLY=5V 0.6 85 C 0.4 O 0.4 VSUPPLY=3.3V 0.2 0.2 0.0 2.5 3.0 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 0.4 Feb.10, 2004 AP1202 Dual USB High-Side Power Switch Typical Performance Characteristics (Continued) Current-Limit Threshold vs. Supply Voltage 1.0 CURRENT-LIMIT THRESHOLD (A) 1.0 Current-Limit Threshold vs. Temperature 0.8 -40 C CURRENT-LIMIT (A) O 0.8 VSUPPLY=5V VSUPPLY=3.3V 0.6 85 C 25 C O O 0.6 0.4 0.4 0.2 0.2 0.0 2.5 3.0 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) 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 0.4 Feb.10, 2004 AP1202 Dual USB High-Side Power Switch Functional Characteristics Turn-On/Turn-Off (AP1202L) Turn-On (AP1202L) VEN VIN=5V CL=47µF RL=35Ω VEN VIN=5V CL=47µF RL=35Ω VFLG VFLG Output Turn-On Rise Time VOUT 140 mA Inrush Current 140 mA VOUT IOUT TIME (10mS/div.) Turn-Off (AP1202L) Inrush Current IOUT TIME (200µS/div.) Enabled Into Short (AP1202L) VEN VEN VFLG VIN=5V CL=47µF RL=35Ω VFLG VIN=5V VOUT 140 mA VOUT Short-Circuit Current IOUT TIME (2mS/div.) Current-Limit Response (AP1202L) IOUT TIME (500µS/div.) Current-Limit Response (AP1202L) VEN VEN VFLG VIN=5V CL=47µF VFLG VIN=5V CL=47µF VOUT Current-Limit Threshold Short-Circuit Current VOUT Current-Limit Threshold Short-Circuit Current IOUT Thermal Shutdown Hysteresis (10OC) IOUT TIME (50µS/div.) TIME (50mS/div.) Anachip Corp. www.anachip.com.tw 7/11 Rev 0.4 Feb.10, 2004 AP1202 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 AP1202 8 0.1uF 33uF Downstream USB Ports D+ DVBUS GND USB Control 5 0.1uF 33uF D+ DVBUS GND Test Circuit 10K R1 10K R2 ON OFF 10Ω R3 EN1 FLG1 FLG2 ON OFF EN2 OUT1 IN GND OUT2 0.1uF C1 10Ω R4 VCC +5V AP1202 Anachip Corp. www.anachip.com.tw 8/11 Rev 0.4 Feb.10, 2004 AP1202 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 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 AP1202 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 signal the error flag. A hysteresis of 10ºC prevents the MOSFETs from turning back on until the chip temperature drops to below 130ºC. 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 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. Marking Information (Top View) 8 Logo Part Number 5 AC AP1202 X YY WW X X 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 ~ 1 PDIP/SOP 4 Anachip Corp. www.anachip.com.tw 9/11 Rev 0.4 Feb.10, 2004 AP1202 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 0.4 Feb.10, 2004 AP1202 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 θ 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 8O 0O 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 0.4 Feb.10, 2004