AAT4610A SKYWORKS

Document overview

  • Manufacturer or author: Provided By www.digicamel.com(free datasheet download site)
  • PDF pages: 11

Technical content

Features

  • Input Voltage Range: 2.4V to 5.5V
  • Programmable Over-Current Threshold
  • Fast Transient Response: ▪ 400ns Response to Short Circuit
  • Low Quiescent Current ▪ 9 μA Typical ▪ 1 μA Max with Switch Off
  • 145m Ω Typical RDS(ON)
  • Only 2.5V Needed for ON/OFF Control
  • Under-Voltage Lockout
  • Thermal Shutdown
  • 4kV ESD Rating
  • UL Approved—File No. E217765
  • 5-Pin SOT23 or 8-Pin SC70JW Package
  • Temperature Range: -40°C to +85°C

Applications

  • Hot Swap Supplies
  • Notebook Computers
  • Peripheral Ports
  • Personal Communication Devices UL Recognized Component Typical Application AAT4610A ON/(ON) IN SET INPUT GND GND GND OUT SOT23-5 OUTPUT ON (ON) 0.47μFRSET1μF

Current Limited Load Switch Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201917A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 3, 2012 Pin Descriptions Pin Number Symbol FunctionSOT23-5 SC70JW-8 1 5 OUT P-channel MOSFET drain. Connect a 0.47 μF capacitor from OUT to GND. 2 6, 7, 8 GND Ground connection. 3 1 SET Current limit set input. A resistor from SET to ground sets the current limit for the switch. 42 ON Enable input. Two versions are available, active-high and active-low. See Order- ing Information for details. 5 3, 4 IN P-channel MOSFET source. Connect a 1 μF capacitor from IN to GND. Pin Configuration SOT23-5 SC70JW-8 (Top View) (Top View) GND IN ONSET OUT 1 3 4 ON IN IN GND GND GND OUT SET 1

Current Limited Load Switch Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201917A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 3, 2012 Absolute Maximum Ratings1 TA = 25°C, unless otherwise noted. Symbol Description Value Units VIN IN to GND -0.3 to 6 V VON ON(ON) to GND -0.3 to V IN + 0.3 V VSET, VOUT SET, OUT to GND -0.3 to V IN + 0.3 V IMAX Maximum Continuous Switch Current 2 A TJ Operating Junction Temperature Range -40 to 150 °C TLEAD Maximum Soldering Temperature (at Leads) 300 °C VESD ESD Rating2 - HBM 4000 V Thermal Characteristics3 Symbol Description Value Units JA Thermal Resistance (SOT23-5 or SC70JW-8) 150 °C/W PD Power Dissipation (SOT23-5 or SC70JW-8) 667 mW 1. Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at c onditions other than the operating conditions specified is not implied. Only one Absolute Maximum Rating should be applied at any one time. 2. Human body model is a 100pF capacitor discharged through a 1.5k Ω resistor into each pin. 3. Mounted on a demo board.

Current Limited Load Switch Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201917A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 3, 2012

Electrical Characteristics

VIN = 5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are T A = 25°C. Symbol Description Conditions Min Typ Max Units VIN Operation Voltage 2.4 5.5 V IQ Quiescent Current VIN = 5V, ON (ON) = Active, IOUT = 0 9 25 μA IQ(OFF) Off Supply Current ON (ON) = Inactive, VIN = 5.5V 1 μA ISD(OFF) Off Switch Current ON (ON) = Inactive, VIN = 5.5V, VOUT = 0 0.01 1 μA VUVLO Under-Voltage Lockout Rising Edge, 1% Hysteresis 1.8 2.4 V RDS(ON) On Resistance VIN = 5.0V, TA = 25°C 145 180 mΩVIN = 4.5V, TA = 25°C 150 VIN = 3.0V, TA = 25°C 190 230 TCRDS On Resistance Temperature Coeffi cient 2800 ppm/°C ILIM Current Limit R SET = 6.8kΩ 0.75 1 1.25 A ILIM(MIN) Minimum Current Limit 130 mA VON(L) ON (ON) Input Low Voltage V IN = 2.7V to 5.5V1 0.8 V ION(SINK) ON (ON) Input Leakage V ON = 5.5V 0.01 1 μA TRESP Current Limit Response Time V IN = 5V 0.4 μs TOFF Turn-Off Time V IN = 5V, RL = 10Ω 41 2 μs TON Turn-On Time V IN = 5V, RL = 10Ω 12 200 μs TSD Over-Temperature Threshold V IN = 5V TJ Increasing 125 °CTJ Decreasing 115 1. For VIN outside this range, consult Typical ON (ON) Threshold curve.

Current Limited Load Switch Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201917A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 3, 2012 Typical Characteristics Unless otherwise noted, VIN = 5V, TA = 25°C. Quiescent Current vs. Temperature -40 -20 0 20 40 60 80 100 120 Temperature (°C) Quiescent Current (μA) Quiescent Current vs. Input Voltage 01 23456 Input Voltage (V) Quiescent Current (μA) Output Current vs. Output Voltage (RSET = 16kΩ) 0.2 0.4 0.6 01 23 45 Output Voltage (V) Output Current (A) RDS(ON) vs. Temperature 100 120 140 160 180 200 220 240 -40 -20 0 20 40 60 80 100 120 Temperature (˚˚C) RDS(ON) (mΩ) Input = 3V Input = 5V Off-Supply Current vs. Temperature 0.01 0.1 -40 -20 0 20 40 60 80 100 1 20 Temperature (°C) Off-Supply Current (μA) Off-Switch Current vs. Temperature Temperature (°°C) Off-Switch Current (μA) 0.001 0.01 0.1 -40 -20 0 20 40 60 80 100 120

Current Limited Load Switch Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201917A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 3, 2012 Typical Characteristics Unless otherwise noted, VIN = 5V, TA = 25°C. Turn-On vs. Temperature (RLOAD = 10Ω; CLOAD = 0.47μF) - 4 0 - 2 00 2 04 06 08 01 0 0 Temperature (°C) Turn-On Time (μs) VIN = 3V VIN = 5V Turn-Off vs. Temperature (RLOAD = 10Ω; CLOAD = 0.47μF) -40 -20 0 20 40 60 80 100 Temperature (°C) Turn-Off Time (μs) VIN = 3V VIN = 5V Turn-On (RL = 10Ω; CL = 0.47μF) - 1 0 - 5 0 5 1 0 1 52 0 2 53 0 3 54 0 4 5 5 0 Time (μs) Voltage (V) OutputON Turn-Off (RL = 10ΩΩ; CL = 0.47μF) - 1 0 - 50 5 1 01 5 2 02 5 3 03 5 4 04 55 0 Time (μs) Voltage (V) OutputON Short-Circuit Through 0.3Ω Time (μs) Input and Output Voltage (V) -4 Output Current (A) Input Voltage Output Current Output Voltage VIH VIH VIL and VIL vs. VIN 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.20 VIN (V)

Current Limited Load Switch Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201917A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 3, 2012 Typical Characteristics Unless otherwise noted, VIN = 5V, TA = 25°C. RSET vs. ILIM 100 0.1 10 1 ILIM (A) RSET (kΩ) RSET Coefficient vs. ILIM 0 0.5 1 1.5 2 ILIM (A) RSET ILIM Product (kV) Current Limit vs. Temperature -50 - 25 0 25 50 75 100 Temperature ( °C) Current Limit (%) RSET =22.1k VIN - VOUT= 0 .5V

Current Limited Load Switch Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201917A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 3, 2012 Functional Block Diagram Current Limit 1.2V Reference Under- Voltage Lockout Over-Temperature Protection OUT SET GND RSET ON (ON) IN

Application Information

In most applications, the variation in I LIM must be taken into account when determining R SET. The ILIM variation is due to processing variations from part to part, as well as variations in the voltages at IN and OUT, plus the operat- ing temperature. See charts “Current Limit vs. Temperature” and “Output Current vs. V OUT.” Together, these three factors add up to a ±25% tolerance (see ILIM specification in Electrical Characteristics section). Figure 1 illustrates a cold device with a statistically higher cur- rent limit and a hot device with a statistically lower cur- rent limit, both with R SET equal to 10.5k Ω. While the chart, "RSET vs. ILIM” indicates an ILIM of 0.7A with an RSET of 10.5kΩ, this figure shows that the actual current limit will be at least 0.525A and no greater than 0.880A. To determine RSET, start with the maximum current drawn by the load and multiply it by 1.33 (typical I LIM = mini- mum ILIM / 0.75). This is the typical current limit value. Next, refer to “RSET vs. ILIM” and find the RSET that corre- sponds to the typical current limit value. Choose the largest resistor available that is less than or equal to it. For greater precision, the value of R SET may also be cal- culated using the ILIM RSET product found in the chart “RSET Coefficient vs. ILIM.” The maximum current is derived by multiplying the typical current for the chosen R SET in the chart by 1.25. A few standard resistor values are listed in Table 1. Current Limit Using10.5kΩ 0.2 0.4 0.6 0.8 1.2 01 2345 VOUT (V) ILIM (A) 0.88A 0.525A Device with high current limit at -40°C Device with low current limit at 85°C Figure 1: Current Limit Using 10.5k Ω.

Current Limited Load Switch Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201917A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 3, 2012 Overload Operation Output Voltage (V) 0.25 0.5 0.75 Output Current (A) Output Current Output Voltage 1Ωload is turned on at time = 0 Figure 2: Overload Operation. RSET (kΩ) Current Limit Typ (mA) Device Will Not Current Limit Below (mA) Device Always Current Limits Below (mA) 40.2 200 150 250 30.9 250 188 313 24.9 300 225 375 22.1 350 263 438 19.6 400 300 500 17.8 450 338 563 16.2 500 375 625 14.7 550 413 688 13.0 600 450 750 10.5 700 525 875 8.87 800 600 1000 7.50 900 675 1125 6.81 1000 750 1250 6.04 1100 825 1375 5.49 1200 900 1500 4.99 1300 975 1625 4.64 1400 1050 1750 Table 1: Current Limit RSET Values Example: A USB port requires 0.5A. 0.5A multiplied by 1.33 is 0.665A. From the chart named “RSET vs. ILIM,” RSET should be less than 11k Ω. 10.5kΩ is a standard value that is a little less than 11k Ω but very close. The chart reads approximately 0.700A as a typical I LIM value for the AAT4610A will limit the load current to greater than 0.525A but less than 0.875A. Operation in Current Limit When a heavy load is applied to the output of the AAT4610A, the load current is limited to the value of I LIM determined by R SET (see Figure 2). Since the load is demanding more current than I LIM, the voltage at the output drops. This causes the AAT4610A to dissipate a larger than normal quantity of power, and its die tem- perature to increase. When the die temperature exceeds an over-temperature limit, the AAT4610A will shut down until is has cooled sufficiently, at which point it will startup again. The AAT4610A will continue to cycle on and off until the load is removed, power is removed, or until a logic high level is applied to ON. Enable Input In many systems, power planes are controlled by inte- grated circuits which run at lower voltages than the power plane itself. The enable input ON of the AAT4610A has low and high threshold voltages that accommodate this condition. The threshold voltages are compatible with 5V TTL and 2.5V to 5V CMOS. Reverse Voltage The AAT4610A is designed to control current flowing from IN to OUT. If a voltage is applied to OUT which is greater than the voltage on IN, large currents may flow. This could cause damage to the AAT4610A.

Current Limited Load Switch Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201917A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 3, 2012

Ordering Information

Package Enable Marking 1 Part Number (Tape and Reel)2 SOT23-5 ON (active low) ERXYY AAT4610AIGV-T1 SOT23-5 ON (active high) HXXYY AAT4610AIGV-1-T1 SC70JW-8 ON (active low) FKXYY AAT4610AIJS-T1 SC70JW-8 ON (active high) HXXYY AAT4610AIJS-1-T1 Skyworks Green™ products are compliant with all applicable legislation and are halogen-free. For additional information, refer to Skyworks Definition of Green™ , document number SQ04-0074.

Package Information

SOT23-54°° ±± 4°° 0.15 ±± 0.07 0.45 ±± 0.15 0.10 BSC 1.20 ± 0.25 1.575 ±± 0.125 2.80 ±± 0.20 0.40 ± 0.10 0.60 REF 2.85 ± 0.15

1.90 BSC

0.95 BSC 1.10 ± 0.20 10°° ± 5°° GAUGE PLANE 0.075 ± 0.075

0.60 REF

All dimensions in millimeters. 1. XYY = assembly and date code. 2. Sample stock is generally held on part numbers listed in BOLD.

Current Limited Load Switch Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201917A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 3, 2012 Copyright © 2012 Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility fo r errors or omissions in these materials or the information contained herein. Sky- works may change its documentation, products, services, specifi cations or product descriptions at any time, without notice. Skyworks makes no commitment to update the materials or information and shall have no responsibility whatsoever for confl icts, incompatibilities, or other diffi culties arising from any future changes. No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or information provided here- under, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and Conditions of Sale. THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A PARTICULAR PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. SKYWORKS DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY DAMAGES, IN- CLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury, death, physical or en- vironmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper use or sale. Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifi cations as a result of design defects, errors, or operation of products outside of pub- lished parameters or design specifi cations. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifi cations or parameters. Skyworks, the Skyworks symbol, and “Breakthrough Simplicity” are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands and names are for identifi cation purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference. SC70JW-8 0.225 ± 0.075 0.45 ± 0.10 0.05 ± 0.05 2.10 ± 0.30 2.00 ± 0.20 7° ± 3° 4° ± 4° 0.15 ± 0.05

1.10 MAX

0.100 2.20 ± 0.20 0.048REF 0.50 BSC 0.50 BSC 0.50 BSC All dimensions in millimeters.