AAT4290 SKYWORKS | Alldatasheet

Document overview

  • Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
  • PDF pages: 16

Technical content

Features

  • 1.8V to 5.5V Input Voltage Range
  • 5 or 3 Independent Load Switches
  • S 2Cwire Interface
  • 1.1  RDS(ON) Per Switch
  • Low Quiescent Current - 4.5 μA Typical - 0.1 μA in Shutdown
  • -40°C to +85°C Temperature Range
  • 8-Pin SC70JW Package

Applications

  • Cell Phones
  • I/O Expansion
  • Multiple Low Power Switching
  • Personal Communication Devices
  • Portable Electronic Devices Typical Application OUT1 AAT4290 OUT2 OUT3 OUT4 OUT5 IN EN/SET GND COUT1 COUT2 COUT3 COUT4 COUT5CIN INPUT EN/SET GND OUT1 OUT2 OUT3 OUT4 OUT5 GND

Figure 1. Typical Application Circuit.

2 7 OUT2 P-channel MOSFET drain. 3 6 OUT1 P-channel MOSFET drain. states of the MOSFETs. See Table 1 and Table 2 for output settings. 6 N/A OUT5 P-channel MOSFET drain. 7 N/A OUT4 P-channel MOSFET drain. 8 8 OUT3 P-channel MOSFET drain. Figure 2. AAT4290/4291 Pinout − 8-pin SC70JW

I/O Expander Load Switches with Serial Control Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202221B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • February 17, 2013 1. Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at co nditions 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  resistor to each pin. 3. Mounted on the board. 4. Derate 4.4mW/°C above 25°C. Absolute Maximum Ratings1 Symbol Description Value Units VIN IN to GND -0.3 to 6.0 V VOUT OUT to GND -0.3 to V IN + 0.3 V VEN/SET EN/SET to GND -0.3 to 6.0 V IMAX Maximum Continuous Switch Current 250 mA TSTORAGE Storage Temperature Range -65 to 150 °C VESD ESD Rating - HBM2 4000 V Thermal Characteristics Symbol Description Value Units JA Thermal Resistance3 225 °C/W PD Maximum Power Dissipation (TA = 25°C)4 440 mW

I/O Expander Load Switches with Serial Control Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202221B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • February 17, 2013 4 1. The AAT4290/91 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is a ssured by design, characterization, and cor- relation with statistical process controls.

Electrical Characteristics

VIN = 5.0V, 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 1.8 5.5 V IQ Quiescent Current VIN = 5.5V, EN/SET = VIN, IOUT = 0, All Switches ON 4.5 8 μA IQ(OFF) Off Supply Current EN/SET = 0, V IN = 5.5V, VOUT Open 1 μA ISD(OFF) Off Switch Current EN/SET = 0, V IN = 5.5V, VOUTn = 0 0.1 1 μA VUVLO Under-Voltage Lockout V IN Falling 1.2 V VUVLO(hys) Under-Voltage Lockout Hysteresis 250 mV RDS(ON) On Resistance VIN = 1.8V, TA = 25°C 2.5 3.8 VIN = 4.2V, TA = 25°C 1.2 1.8 VIN = 5.0V, TA = 25°C 1.1 1.7 TCRDS On Resistance Temperature Coeffi cient 2800 ppm°C AAT4290-1 and AAT4291-1 TD(ON) Output Turn-On Delay Time V IN = 5V, RLOAD = 500, COUT = 0.1μF4 0 n s TR Turn-On Rise Time V IN = 5V, RLOAD = 500, COUT = 0.1μF 270 ns TD(OFF) Turn-Off Delay Time V IN = 5V, RLOAD = 500 40 ns EN/SET VEN(L) Enable Threshold Low V IN = 1.8V 0.4 V VEN(H) Enable Threshold High V IN = 5.5V 1.6 V TLO EN/SET Low Time V EN/SET < 0.4V 100 ns THI Minimum EN/SET High Time VIN ≤ 2.5V 500 nsVIN > 2.5V 250 TO EN/SET Off Timeout 2.6 4.0 μs TLAT EN/SET Latch Timeout 2.6 4.0 μs ISINK EN/SET Input Leakage V EN/SET = 5.5V 0.01 1 μA

I/O Expander Load Switches with Serial Control Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202221B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • February 17, 2013 Typical Characteristics Unless otherwise noted, VIN = 5V, CIN = 1μF, COUTX = 0.1μF, TA = 25°C. Quiescent Current vs. Temperature -40 -20 0 20 40 60 80 100 Temperature (°°C) IQ (μA) 2.5 3.5 4.5 5.5 VIN = 5.0V VIN = 3.3V Quiescent Current vs. Input Voltage Input Voltage (V) IQ (μμA) 1.5 2.5 3.5 4.5 5.5 VIH and VIL vs. Input Voltage Input Voltage (V) VIH and VIL (V) VIL VIH 0.5 0.6 0.7 0.8 0.9 1.1 1.2 1.3 1.4 RDS(ON) vs. Input Voltage Input Voltage (V) RDS(ON) (ΩΩ) 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 IO1-5 = 100mA RDS1 RDS2 RDS5 RDS3 RDS4 RDS(ON) vs. Temperature Temperature (°°C) RDS(ON) (W) -40 -20 0 20 40 60 80 100 0.7 0.8 0.9 1.1 1.2 1.3 VIN = 5.0V IO1-5 = 50mA RDS1 RDS2 RDS3 RDS4 RDS5 RDS(ON) vs. Temperature 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 -40 -20 0 20 40 60 80 100 Temperature (°°C) RDS(ON) (W) VIN = 5.0V IO1-5 = 100mA RDS3 RDS4 RDS5 RDS1 RDS2

I/O Expander Load Switches with Serial Control Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202221B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • February 17, 2013 6 Typical Characteristics Unless otherwise noted, VIN = 5V, CIN = 1μF, COUTX = 0.1μF, TA = 25°C. EN/SET Latch Timeout vs. Temperature -40 -20 0 20 40 60 80 100 Temperature (°°C) Latch Timeout, tLAT (μs) 2.2 2.4 2.6 2.8 3.2 3.4 VIN = 5.0V VIN = 3.3V EN/SET Off Timeout vs. Temperature -40 -20 0 20 40 60 80 100 Temperature (°°C) Off Timeout, tO (μs) 2.2 2.4 2.6 2.8 3.2 3.4 VIN = 3.3V VIN = 5.0V EN/SET Timeout vs. Input Voltage Input Voltage (V) Timeout (μμs) 2.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 Off Timeout tO Latch Timeout tLAT Turn-On Characteristic (VIN = 5V, RL1 = RL2 = 50ΩΩ; CO1 = CO2 = 0.1μF) Time (2μs/div) EN/SET (5V/div) VO1 (5V/div) VO2 (5V/div) Turn-On Characteristic (VIN = 5V; RL1 = RL2 = 50ΩΩ; CO1 = CO2 = 0.1μF) Time (2μs/div) EN/SET (5V/div) VO1 (5V/div) VO2 (5V/div) Turn-On Characteristic (VIN = 5V; RL1 = RL2 = 50ΩΩ; CO1 = CO2 = 0.1μF) Time (2μs/div) EN/SET (5V/div) VO1 (5V/div) VO2 (5V/div)

I/O Expander Load Switches with Serial Control Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202221B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • February 17, 2013 Typical Characteristics Unless otherwise noted, VIN = 5V, CIN = 1μF, COUTX = 0.1μF, TA = 25°C. Turn-On Characteristic (VIN = 5V; RL1 = RL2 = 50ΩΩ; CO1 = CO2 = 0.1μF) Time (2μs/div) EN/SET (5V/div) VO1 (5V/div) VO2 (5V/div) Turn-Off Characteristic (VIN = 5V; RL1 = RL2 = 50ΩΩ; CO1 = CO2 = 0.1μF) Time (2μs/div) EN/SET (5V/div) VO1 (5V/div) VO2 (5V/div) Transition of Outputs (VIN = 5V; RL1 = RL2 = 50ΩΩ; CO1 = CO2 = 0.1μF) Time (2μs/div) EN/SET (5V/div) VO1 (5V/div) VO2 (5V/div) Time (5μμs/div) EN/SET (5V/div) VO1 (5V/div) VO2 (100mV/div, AC coupled) Turn-On Transient Characteristic (VIN = 5V; RL1 = RL2 = 50Ω)

Table 1: AAT4290 Output Settings. Table 2: AAT4291 Output Settings. to deliver higher power to a given load. order by adding more clock bursts. Figure 4. Timing Diagram.

I/O Expander Load Switches with Serial Control Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202221B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • February 17, 2013 Evaluation Board Description AAT4290 Evaluation Board The AAT4290IJS-1-DB3 Evaluation Board is used to test the performance of the AAT4290. This section describes the evaluation board and its accompanying user inter- face. In addition, a brief Getting Started section is included to help the user begin operating the evaluation board. A schematic of the complete circuit is shown in Figure 7. VDD1 GP52 GP43 GP34 GP2 5GP1 6GP0 7VSS 8 PIC12F675 1μF 1kΩ 1kΩ 1kΩ 330Ω 12 34 5

0 SW1

0 SW2

0 SW3

EN/SET4 GN D 5OU T5 6OU T4 7OU T3 8 AAT4290 330Ω 330Ω R6 R10 330Ω 330Ω Out5 Out4 Out3 Out2 Out1 Green 1 2 3 JP 1 DC- DC+ GND GND GND DC+ 1 2 3 100kΩ GND 20MHz X122pF 22pF GND GND C6 C7 C8C5 0.1μF TP TP TP TP TP 0.1μF 0.1μF 0.1μF 0.1μF Figure 7: AAT4290IJS-1-DB3 Evaluation Board Schematic. Getting Started The AAT4290IJS-1-DB3 evaluation board is typically mounted on a battery pack. The battery pack holds three AAA size, conventional alkaline batteries. A jumper is inline with the battery supply for connecting/disconnect- ing power. There is an additional jumper labeled ON SRL OFF, which provides access to EN/SET. Ensure that the jumper is in the ON SRL position for normal operation. To apply power to the board, ensure the jumper is at the ON MCU position. The red LED1 should illuminate indi- cating that power has been connected. The AAT4290 may be operated from an external power source. The batteries should be removed from the bat- tery pack. External power may be applied to the DC+ and DC- points on the board. The external power source should be set from 1.8V to 5.5V before the AAT4290 is turned on by moving the jumper on J1 to the “ON MCU” position. There are three buttons on the board (SW1, SW2, and SW3) that enable and disable the ON and OFF state for the five output channels. Once a button (or a combina- tion of buttons) is toggled, the corresponding LED for

I/O Expander Load Switches with Serial Control Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202221B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • February 17, 2013 12 OUT1 to OUT5 will turn ON or OFF accordingly, depend- ing on the previous state. This indicates that the selected state has been submitted through the EN/SET line to the AAT4290. Detailed operations are listed in Table 3. Toggling SW1 and SW3 at once, activates the auto- cycling state through the Table 1 "AAT4290 Output Settings". In other words, the microcontroller will submit a burst of edges, pause, and submit another burst of edges and so on. It will start by submitting 31 edges, next submit 30 edges, etc.; next, submit 1 edge and then start over. All LEDs should blink five times before the sequence of autocycling. By toggling all three but- tons together, all LEDs should turn off. The AAT4290 outputs can be probed via the test points near the output capacitors (C4 to C8). The evaluation board layer detail is provided in Figures 8 and 9. Table 4 provides the component list for the AAT4290 evaluation board. Button(s) Pushed Description SW1 Toggle on/off of output Channel 1. SW2 Toggle on/off of output Channel 2. SW3 Toggle on/off of output Channel 3. SW1 + SW2 Toggle on/off of output Channel 4. SW2 + SW3 Toggle on/off of output Channel 5. SW1 + SW3 Auto cycling. All outputs blinks (on and off) fi ve times and enter binary-increment mode. Auto cycling repeats three times. SW1 + SW2 + SW3 Reset. All outputs turn off. Table 3: User Interface Functionality. Figure 8: Top Layer (not to scale). Figure 9: Bottom Layer (not to scale).

I/O Expander Load Switches with Serial Control Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202221B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • February 17, 2013 Component Part# Description Manufacturer U1 AAT4290 I/O Expander Load Switch with Serial Control; SC70JW-8 package Skyworks U2 PIC12F675 8-bit CMOS, FLASH-based μC; 8-Pin PDIP package Microchip SW1 – SW3 PTS645TL50 Switch Tact, SPST, 5mm ITT Industries R1 – R3 Chip Resistor 1K, 5%, 1/4W; 1206 Vishay R4 Chip Resistor 100K, 5%, 1/4W; 0805 Vishay R5 Chip Resistor 330K, 5%, 1/4W; 1206 Vishay R6-R10 Chip Resistor 330K, 5%, 1/4W; 0603 Vishay JP1 Chip Resistor 0 Ω, 5%; 0805 Vishay C1 ECJ-2YB1A105K 1 μF, 10V, X5R, 10%; 0805 Panasonic-ECG C2, C3 VJ0805A220KXAA 22pF, 50V, NPO, 10%; 0805 Vishay C4-C8 (optional) GRM188R71C104KA01D 0.1 μF, 16V, 10%; 0603 Murata J1, J2 PRPN401PAEN Con. Header, 2mm zip Sullins Electronics X1 X439-ND Quartz crystal 20MHz HC-49US ECS Inc LED1 CMD15-21SRC/TR8 Red LED; 1206 Chicago Miniature Lamp OUT1-OUT5 CMD15-21UGC/TR8 Green LED; 1206 Chicago Miniature Lamp Table 4: AAT4290 Evaluation Board Component Listing. AAT4291 Evaluation Board This section discusses the AAT4291 evaluation board and the application of the AAT4291 as an RGB LED driver. Advanced RGB LED control is realized without having to use multiple discrete MOSFET switches controlled by multiple I/O pins from the system processor. Only one digital I/O pin is needed for complete, independent brightness control of each of the R, G, and B LEDs. Using RGB LEDs to generate various colors presents unique challenges. Among them is a requirement to pulse width modulate (PWM) three independent LED cur- rents to accurately control the brightness for each LED color. The AAT4291 is well suited for this. Using only one GPIO pin from the system processor, a high PWM rate can be achieved with complete brightness control for each LED. A schematic of the complete circuit is shown in Figure 10. Getting Started The evaluation board comes with a battery pack attached. In this configuration, VIN is supplied from three standard “AAA” alkaline batteries. Under new con- ditions for the batteries, the input voltage is generally 4.7V ~ 4.8V and falls off depending on the degree of discharge and load conditions. If desired, the batteries can be removed and an independent, DC supply can be used. There are five buttons on the board. Their functions are as follows:

  • SW1: Increments through the eight Output Setting states (Table 2).
  • SW2: Increments B_LED duty cycle.
  • SW3: Increments G_LED duty cycle.
  • SW4: Increments R_LED duty cycle.
  • SW5: Brings EN/SET low (shuts down the AAT4291 device). Notes: 1. Buttons 1 through 4 will automatically increment if held down. 2. Buttons 2 through 4 are set up so that a user can independently control the corresponding R, G, or B LED brightness. This is done by incrementing the PWM duty cycle through the following states: 0%, The PIC microcontroller toggles the EN/SET line high and low at 500kHz. The rise and fall times of the EN/SET signal are small relative to the period,so T HI and TLO are roughly 1μs (see Figure 10). T HI and TLO depend on the μC's internal RC oscillator, so the 1 μs reference is an approximate figure and subject to the precision of the RC oscillator. Figure 11 shows the typical EN/SET signal. The evaluation board layer detail is provided in Figures 12 through 14. Table 5 provides the component list for the AAT4290 evaluation board.

I/O Expander Load Switches with Serial Control Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202221B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • February 17, 2013 14 VOUT GND2 GND3 GND4 SHDN 5C- 6VIN C+ 8 AAT3110-4.5 IN NC NC EN/SET

4 GND 5OUT1

60.4 249 249 10μF 10μF 1μF J1 100K VDD GP5 GP4 GP3

4 GP2 5GP1 6GP0 7

60.4 R10 249 R11 249 R12 RED D2R GREEN D2G BLUE D2B VIN VIN VIN GND

1615 SMD 1615 SMD

10μF 0.1μF VIN 234 234 Figure 10: AAT4291IJS-1 Evaluation Board Schematic. Figure 11: Typical EN/SET Signal.

I/O Expander Load Switches with Serial Control Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 202221B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • February 17, 2013 16 Copyright © 2012, 2013 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. 1. XYY = assembly and date code. 2. Sample stock is generally held on part numbers listed in BOLD.

Ordering Information

Package Marking 1 Part Number (Tape and Reel)2 SC70JW-8 HSXYY AAT4290IJS-1-T1 SC70JW-8 HCXYY AAT4291IJS-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

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.