0
登录后你可以
  • 下载海量资料
  • 学习在线课程
  • 观看技术视频
  • 写文章/发帖/加入社区
会员中心
创作中心
发布
  • 发文章

  • 发资料

  • 发帖

  • 提问

  • 发视频

创作活动
AAT4687IJQ-1-T1

AAT4687IJQ-1-T1

  • 厂商:

    SKYWORKS(思佳讯)

  • 封装:

    SC70JW10

  • 描述:

    IC BATT PROT LI-ION 10SC70JW

  • 数据手册
  • 价格&库存
AAT4687IJQ-1-T1 数据手册
DATA SHEET AAT4687: Over-Voltage Protection Switch Applications Description  Cell phones The AAT4687 OVPSwitch™ is a member of the Skyworks Application Specific Power MOSFET (ASPM™) product family. It is a P-channel MOSFET power switch with precise over-voltage protection control, designed to protect low-voltage systems against high-voltage faults up to +28 V. If the input voltage exceeds the programmed over-voltage threshold, the P-channel MOSFET switch is turned off to prevent damage to the output load circuits. The AAT4687 is available with an internally programmed over-voltage trip point or as an adjustable version programmed by two external resistors.  Digital still cameras  GPS  MP3 players  Personal data assistants (PDAs)  USB hot-swap/live-insertion devices Features  Over-voltage protection up to 28 V  Fixed or adjustable over-voltage protection threshold  3 V under-voltage lockout threshold  Fast OVP response:  0.7 s typical to over-voltage transient  Low operation quiescent current:  30 A typical  1 A max in shutdown (disabled)  Thermal shutdown protection  100 m typical (130 m Max.) RDS(ON) at 5 V The AAT4687 includes an under-voltage lockout (UVLO) protection circuit, which puts the device into sleep mode at low input voltages, consuming less than 1 A of current. The AAT4687 also includes an enable pin (EN) to enable or disable the device and an OVP, OTP fault indicator (FLT). The AAT4687 is offered in a small 10-pin, 2.2 mm  2.0 mm SC70JW package, and is specified for operation over the 40 °C to +85 °C ambient temperature range. A typical application circuit is shown in Figure 1. The pin configurations are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1.  OVP, OTP fault indicator  1.8 A maximum continuous current VIO + 5 V VIN 3 V ~ 28 V  Temperature range: 40 °C to +85 °C  SC70JW (10-pin, 2.2 mm  2.0 mm) package (MSL1, 260 ºC per JEDEC J-STD-020) IN OVP R2 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. VOUT COUT 1 μF AAT4687 R1 CIN 1 μF OUT EN FLT GND Fault Flag tc220 Figure 1. AAT4687 Typical Application Circuit Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201962C • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 3, 2014 1 DATA SHEET • AAT4687 OVER-VOLTAGE PROTECTION SWITCH OVP GND FLT EN IN 1 10 2 9 3 8 4 7 5 6 N/C GND FLT EN IN GND GND GND OUT OUT (a) Adjustable Version 1 10 2 9 3 8 4 7 5 6 (b) Fixed Version GND GND GND OUT OUT tc221 Figure 2. AAT4687 Pinout – 10-Pin, 2.2 mm  2.0 mm SC70JW (Top View) Table 1. AAT4687 Signal Descriptions Pin Number Adjustable Fixed 1 N/C Name Description OVP Over-voltage protection threshold input (adjustable only). In the fixed version, this pin is not connected. GND Ground connection pin. FLT Over-voltage or over-temperature fault reporting output pin. Open drain. FLT goes low when input voltage exceeds the over-voltage threshold or an over-temperature fault occurs. An external pull up resistor to VIO (6.5 V max) should be added. EN Enable input pin, active low. An internal pull-down resistor is connected on this pin. Connect to ground for normal operation. Connect to high (6.5 V Max) to shut down the device, which then draws less than 1 A of current. 5 IN Power input pin. Connect 1 F capacitor from IN to GND. 6, 7 OUT 2, 8, 9, 10 3 4 Output. Connect a 0.1 F ~ 47 F capacitor from OUT to GND. Electrical and Mechanical Specifications Typical performance characteristics of the AAT4687 are shown in Figures 3 through 20 The absolute maximum ratings of the AAT4687 are provided in Table 2, the thermal information is listed in Table 3, and electrical specifications are provided in Table 4. Table 2. AAT4687 Absolute Maximum Ratings (Note 1) Parameter Symbol Minimum Maximum Units 0.3 +30 V IN to GND VIN OVP to GND VOVP 0.3 +6.5 V FLT, EN to GND VFLT, VEN 0.3 +6.5 V OUT to GND VOUT 0.3 VIN + 0.3 V Maximum continuous switch current IMAX 1.8 A Operating junction temperature range TJ 40 150 ºC Storage temperature TSTG 40 150 ºC Maximum soldering temperature (at leads) TLEAD 300 ºC Note 1: Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other parameters set at or below their nominal value. Exceeding any of the limits listed may result in permanent damage to the device. Table 3. AAT4687 Thermal Information Parameter Symbol Value Units Maximum thermal resistance (Note 1) JA 160 ºC/W Maximum power dissipation (Note 1, Note 2) PD 625 mW Note 1: Mounted on an FR4 board. Note 2: Derate 6.25 mW/°C above 25 °C. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 2 June 3, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201962C DATA SHEET • AAT4687 OVER-VOLTAGE PROTECTION SWITCH CAUTION: Although this device is designed to be as robust as possible, electrostatic discharge (ESD) can damage this device. This device must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times. Table 4. AAT4687 Electrical Specifications (Note 1) (VIN = 5 V, TA = –40 C to +85C, Unless Otherwise Noted, Typical Values are TA = 25 C) Parameter Symbol Input over-voltage protection range VIN_MAX Normal operating input voltage range VIN Operation quiescent current IQ Test Condition Min Typical Max Units 28 V 14 V 30 60 A 1 A 3.0 3.3 V 3 VIN = 5 V, EN = 0 V, IOUT = 0 A Shutdown supply current ISD(OFF) EN = VIN, VIN = 5.5 V, VOUT = 0 V Under-voltage lockout threshold VUVLO Rising edge Under-voltage lockout threshold hysteresis VUVLO_HYS 0.1 V Adjustable Over-voltage lockout threshold, OVP pin VOVP_TH Over-voltage lockout threshold hysteresis, OVP pin VOVP_HYS Rising edge 1.084 1.1 1.117 V 23 mV 6.5 V 2.1 % of VOVPT Fixed Over-voltage lockout threshold, IN pin (Note 2) VOVPT Over-voltage lockout threshold hysteresis, IN pin VOVP_HYS Rising edge MOSFET Switch PMOS On-resistance RDS(ON) IOUT = 1500 mA, TA = 25 °C Switch Off-leakage ID(OFF) EN = VIN 100 130 m 1 A 0.4 V Logic EN input low voltage VEN(L) EN input high voltage VEN(H) 1.6 EN input leakage IEN VEN = 5.5 V or 0 V FLT output voltage low FLTOL IFLT = 1 mA FLT output leakage current FLTIOL V 0.5 2.0 A 0.4 V 1 A 15 ms Timing FLT blanking time tBLK_FLT From de-assertion of OV 5 10 FLT assertion delay time from over-voltage (OV) tD_FLT From assertion of OV Over-voltage release time tRLS_OV VIN = 5 V, VOVP fall from 1.13 V to 1.07 V in 1 ns Over-voltage response time tRESP_OV VIN = 5V, VOVP rise from 1.07 V to 1.13 V in 1 ns 0.7 s Turn on delay time tON VIN = 5V; ROUT = 10 ; COUT = 1 F 10 ms Turn on rise time tR VIN = 5V; ROUT = 10 ; COUT = 1 F 1 ms Turn off delay time tOFF VIN = 5V; ROUT = 10 ; COUT = 1 F 9 ms Turn off fall time tF VIN = 5V; ROUT = 10 ; COUT = 1 F 4.5 ms s 1 5 10 15 ms Thermal Protection Shutdown temperature TSHDN 150 °C Over-temperature shutdown hysteresis THYS 20 °C Note 1: Performance is guaranteed only under the conditions listed in this table. Note 2: Fixed OVP Threshold Voltage Version is available from 5 V to 14 V at 50 mV step. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201962C • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 3, 2014 3 DATA SHEET • AAT4687: SINGLE CELL LI+ SWITCH MODE BATTERY CHARGER Typical Performance Characteristics (VIN = 5 V, TA = –40 C to +85C, Unless Otherwise Noted, Typical Values are TA = 25 C) 90 40 Quiescent Current (μA) Quiescent Current (μA) 80 70 60 50 40 30 35 30 25 20 10 3 4 5 6 7 8 9 10 11 12 13 15 -40 14 tc223 tc222 20 -15 85 0.42 3 2.4 1.8 1.2 tc224 0.6 4 6 8 10 12 14 16 18 20 22 24 26 0.35 0.28 0.21 0.14 0.07 0.00 -40 28 tc225 3.6 Shutdown Supply Current (μA) 4.2 Shutdown Supply Current (μA) 60 Figure 4. Operation Quiescent Current vs Temperature (VIN = 5 V, No Load) Figure 3. Operation Quiescent Current vs Supply Voltage -15 10 35 60 85 Temperature (°C) Supply Voltage (V) Figure 5. Shutdown Supply Current vs Supply Voltage Figure 6. Shutdown Supply Current vs Temperature (VIN = 6.5 V) 0.014 160 On-Resistance (mΩ) 0.012 0.010 0.008 0.006 0.004 140 120 100 80 0.000 2 4 6 8 10 12 14 16 18 20 22 24 26 Supply Voltage (V) Figure 7. Switch Off Leakage vs Supply Voltage 28 60 -40 tc227 0.002 tc226 Switch Off Leakage Current (μA) 35 Temperature (°C) Supply Voltage (V) 0 2 10 -15 10 35 60 85 Temperature (°C) Figure 8. PMOS On-Resistance vs Temperature (VIN = 5 V, ILOAD = 1 A) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201962C • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 3, 2014 9 DATA SHEET • AAT4687 OVER-VOLTAGE PROTECTION SWITCH 13 OVP (1 V/div) 12 11 tBLK_FLT (ms) VOUT (2 V/div) IOUT (500 mA/div) 10 9 tc228 7 -40 tc229 8 FLT (5 V/div) -15 Figure 9. FLT Blanking Time (VIN = 5 V, COUT = 1 F, OVP Transient from 1.2 V to 0.8 V, ROUT = 10 ) 85 13 UVLO_Hi UVLO_Low 12 tRLS_OV (ms) 3.30 3.10 2.90 11 10 9 tc230 2.70 -15 10 35 60 8 -40 85 tc231 UVLO Threshold (V) 60 Figure 10. FLT Blanking Time vs Temperature 3.50 -15 10 35 60 85 Temperature (°C) Temperature (°C) Figure 12. Over-Voltage Release Time vs Temperature (VIN = 5 V, COUT = 1 F, ROUT = 10 ) Figure 11. Under-Voltage Lockout Threshold vs Temperature 800 1.12 OVP_Threshold_Hi OVP_Threshold_Low 1.11 750 1.10 tRESP_OV (ns) OVP Threshold (V) 35 Temperature (°C) Time (2 ms/div) 2.50 -40 10 1.09 1.08 700 650 1.07 600 1.05 -40 -15 10 35 60 85 Temperature (°C) Figure 13. Over-Voltage Lockout Threshold vs Temperature 550 -40 tc233 tc232 1.06 -15 10 35 60 85 Temperature (°C) Figure 14. Over-Voltage Response Time vs Temperature Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201962C • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 3, 2014 5 1.4 1.4 1.3 1.3 1.2 1.2 VEN(L) (V) 1.1 1.1 1 1 0.8 3 4 5 6 7 8 9 10 11 12 13 −40 °C 25 °C 85 °C 0.9 tc234 −40 °C 25 °C 85 °C 0.9 0.8 3 14 4 5 6 7 8 9 10 11 12 13 14 Supply Voltage (V) Supply Voltage (V) Figure 16. EN Input Low Voltage vs Supply Voltage Figure 15. EN Input High Voltage vs Supply Voltage 5.0 V VOUT (2 V/div) VOUT (2 V/div) tc235 VEN(H) (V) DATA SHEET • AAT4687 OVER-VOLTAGE PROTECTION SWITCH 0V EN (2 V/div) 0V EN (2 V/div) tc236 tc237 0V Time (2 ms/div) Time (2 ms/div) Figure 18. Turn Off Delay Time (VIN = 5 V, ROUT = 10 ) Figure 17. Turn On Delay Time (VIN = 5 V, ROUT = 10 ) VIN (5 V/div) OVP (1 V/div) OVP (1 V/div) 0.7 μs VOUT (100 mV/div) VOUT (2 V/div) tc238 tc239 FLT (5 V/div) FLT (5 V/div) Time (5 μs/div) Figure 19. Over-Voltage Protection Response Time (500 ns/div) Figure 20. Over-Voltage Response Time (VIN = 5 V, OVP Transient from 0.8 V to 1.2 V) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 6 June 3, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201962C DATA SHEET • AAT4687 OVER-VOLTAGE PROTECTION SWITCH Fixed Option (metal programable) IN OUT FLT OVP Sense and Control OVP EN GND tc240 Figure 21. AAT4687 Functional Block Diagram Functional Description The AAT4687 provides up to 28 V over-voltage protection when powering low-voltage systems such as cell phones, MP3 players, and PDAs or when charging Lithium-Ion batteries from a poorly regulated supply. The AAT4687 is inserted between the power supply or charger source and the load to be protected. The AAT4687 IC includes a low-resistance P-channel MOSFET, under-voltage lockout protection, over-voltage monitor, fast shut-down circuitry, and a fault output flag. In normal operation, the P-channel MOSFET acts as a slew-rate controlled load switch, connecting and disconnecting the power supply from IN to OUT. A low-resistance MOSFET is used to minimize the voltage drop between the voltage source and the load and to reduce power dissipation. When the voltage on the input exceeds the over-voltage protection trip voltage (internally set in the fixed voltage version or externally by a voltage divider to the OVP pin for the adjustable version), the device immediately turns off the internal P-channel FET, disconnecting the load from the input and preventing damage to downstream components. Simultaneously, the fault flag is raised, alerting the system to a problem. If an over-voltage condition is applied at the time of the device enable, then the switch will remain OFF. A functional block diagram is shown in Figure 21. Figure 22 shows the timing diagram. Under-Voltage Lockout (UVLO) The AAT4687 has a fixed 3.0 V under-voltage lockout level (UVLO). When the input voltage is less than the UVLO level, the MOSFET is turned off. Hysteresis of 100 mV is included to ensure circuit stability. Over-Voltage Protection (OVP) The AAT4687 adjustable version has a 1.1 V ±1.5% over­voltage trip threshold on the OVP pin. With a resistor divider on the OVP pin from IN to GND, the over-voltage trip point can be adjusted anywhere within the input voltage range (see Table 5). Once the over-voltage trip level is triggered, the PMOS switch controller will turn off the PMOS in less than 0.7 s. In the AAT4687 fixed version, the resistor divider is internally integrated with the input voltage trip point at 6.5 V. The fixed version of the AAT4687 does not have a connection to the internal OVP circuitry, and Pin 1 is designed to be left unconnected. Over-Temperature Protection (OTP) If the ambient temperature of the device exceeds TSHDN, the OVP switch is turned off, and the pin is driven low. The OVP switch recovers automatically when the junction temperature falls below (TSHDN  20 °C). Fault Indicator (FLT) The output is an active-low open-drain fault reporting output. A pull-up resistor should be connected from FLT to the logic I/O voltage of the host system. FLT is asserted immediately if an over-voltage or over-temperature fault occurs. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201962C • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 3, 2014 7 DATA SHEET • AAT4687 OVER-VOLTAGE PROTECTION SWITCH VOVPT IN VOVPT tD_FLT tBLK_FLT FLT tRESP_OV tRLS_OV OUT 50% EN tOFF tON OUT 90% 50% 10% 90% 50% 10% tF tR tc244 Figure 22. AAT4687 Timing Diagram Enable Control (EN) EN is an active-low enable input. EN is driven low, connected to ground, or left floating for normal device operation. Taking EN high turns off the MOSFET. In case of an over-voltage or UVLO condition, toggling EN does not override the fault condition and the switch remains off. Device Operation On initial power-up, if VIN < VUVLO or if VOVP > VOVP_TH (1.1 V), the PMOS is held off. If VUVLO < VIN, VOVP < VOVP_TH, and EN is low, the device enters startup after a 10 ms internal delay. and the sensitive devices, they are insulated from the voltage spike, and the input supply is disconnected in 0.7 s. Figure 23 shows the over-voltage protection response time test circuit, with R1 = 487 k, R2 = 110 k, COUT = 1 F and ROUT = 10 . Figure 24 is the typical over-voltage response time curve. The input voltage is rapidly increased from 5 V to 12 V by a voltage surge or voltage spike. The voltage at the OVP pin is also increased until it reaches the over-voltage trip point. At this point, the FLT pin is pulled low and the output voltage starts to fall. Figure 25 shows a zoom-in scope capture of the OVP response time; the output is disconnected from the input in as little as 0.7 s. Application Information Adjustable Version - Over-Voltage Protection Resistors Over-Voltage Protection The over-voltage protection threshold is programmed with two resistors: R1 and R2. To limit current flow through the external resistor string while maintaining good noise immunity, use smaller resistor values, such as 10 k for R2. Using a larger value further reduces system current, but also increases the impedance of the OVP node, making it more sensitive to external noise and interference. A suggested value for R2 is 110 k. In the case of R2 = 110 k and VOVP_TH = 1.1 V, R1 can be approximated by the following formula: The AAT4687 over-voltage protection circuit provides fast protection against transient voltage spikes and short duration spikes of high voltage from the power supply lines. The AAT4687 can quickly disconnect the input supply from the load and avoid damage to sensitive components. In portable product applications, removing the battery pack during charging can create large transients, and a high voltage spike can occur which can damage other electronic components (such as the battery charger) in the product. A "hot plug" of the AC/DC wall adapter into the AC outlet can create and release a voltage spike from the transformer. As a result, some sensitive components within the product can be damaged. Whe the AAT4687 is placed between the power lines   V  V R1   OVPT  1   R2   OVPT  1  110  VOVP _ TH  . 1 1     Where the voltage is in V, resistance in k. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 8 June 3, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201962C DATA SHEET • AAT4687 OVER-VOLTAGE PROTECTION SWITCH SCOPE +12 V LOAD AAT4687 VIN +5 V 1 2 3 4 OVP 8 7 6 5 GND 10 GND VOUT Fault tc241 Figure 23. Over-Voltage Protection Response Time Test Circuit Table 5 summarizes resistor values for various over-voltage settings. Use 1% tolerance metal film resistors for programming the desired OVP setting. VIN (5 V/div) OVP (1 V/div) VOUT (2 V/div) Table 5. Recommended OVP Setting for the Adjustable Version tc238 FLT (5 V/div) Time (5 μs/div) Figure 24. Typical Over-Voltage Response Time OVP (1 V/div) 0.7 μs VOUT (100 mV/div) R2 (k) R1 (k) VOVPT Setting (V) 110 387 5.0 110 487 6.0 110 536 6.5 110 787 9.0 110 1000 11.0 110 1300 14.0 110 1540 16.5 110 1780 19.0 110 2050 21.5 110 2320 24.0 110 2550 26.5 tc239 FLT (5 V/div) Time (500 ns/div) Figure 25. Typical Over-Voltage Response (Zoom View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201962C • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 3, 2014 9 DATA SHEET • AAT4687 OVER-VOLTAGE PROTECTION SWITCH Input Capacitor A 1 F or larger capacitor is typically recommended for CIN. CIN should be located as close to the device VIN pin as practically possible. Ceramic, tantalum, or aluminum electrolytic capacitors may be selected for CIN. There is no specific capacitor equivalent series resistance (ESR) requirement for CIN. However, for higher current operation, ceramic capacitors are recommended for CIN due to their inherent capability over tantalum capacitors to withstand input current surges from low impedance sources such as batteries in portable devices. Capacitors are typically manufactured in different voltage ratings. If the maximum possible surge voltage is known, select capacitors with a voltage rating at least 5 V higher than the maximum possible surge voltage. Otherwise, 50 V rated capacitors are generally good for most OVP applications to prevent any surge voltage. Output Capacitor A 0.1 F  47 F output capacitor is required at the output. Likewise, with the output capacitor, there is no specific capacitor ESR requirement. COUT may be increased to accommodate any load transient condition. Thermal Considerations and Maximum Output Current The AAT4687 is designed to deliver a continuous output load current. The limiting characteristic for maximum safe operating output load current is package power dissipation. In order to obtain high operating currents, careful device layout and circuit operating conditions must be taken into account. The following description assumes the load switch is mounted on a printed circuit board utilizing the minimum recommended footprint in the Printed Circuit Board Layout Recommendations section. At any given ambient temperature (TA), the maximum package power dissipation can be determined by the following equation: PD( MAX )  TJ ( MAX )  TA  JA Constants for the AAT4687 are maximum junction temperature (TJ(MAX) = +125 °C) and package thermal resistance (JA = 160 °C/W). Worst-case conditions are calculated at the maximum operating temperature, TA = +85 °C. Typical conditions are calculated under normal ambient conditions where TA = +25 °C. At TA = +85 °C, PD(MAX) = 250 mW. At TA = +25 °C, PD(MAX) = 625 mW. The maximum continuous output current for the AAT4687 is a function of the package power dissipation and the RDS of the MOSFET at TJ(MAX). The maximum RDS of the MOSFET at TJ(MAX) is calculated by increasing the maximum room temperature. For maximum current, refer to the following equation: I OUT ( MAX )  PD( MAX ) RDS The maximum allowable output current for the AAT4687 is 1.8 A. If the output current exceeds 1.8 A, the device is damaged. Printed Circuit Board Layout Recommendations For proper thermal management and to take advantage of the low RDS(ON) of the AAT4687, certain circuit board layout rules should be followed:  VIN and VOUT should be routed using wider than normal traces, and GND should be connected to a ground plane.  To maximize package thermal dissipation and power handling capacity of the AAT4687 SC70JW-10 package, the ground plane area connected to the ground pins should be as large as possible.  For best performance, CIN and COUT should be placed close to the package pins. Evaluation Board Description The AAT4687 Evaluation Board is used to test the performance of the AAT4687. An Evaluation Board schematic diagram is provided in Figure 26. Layer details for the Evaluation Board are shown in Figure 27. The Evaluation Board has additional components for easy evaluation, and the bill of materials required for the system is shown in Table 6. Package Information Package dimensions for the 10-pin SC70JW package are shown in Figure 28. Tape and reel dimensions are shown in Figure 29. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 10 June 3, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201962C DATA SHEET • AAT4687: SINGLE CELL LI+ SWITCH MODE BATTERY CHARGER +5 V DS Red LED VIN U1 AAT4687 R1 499 kΩ C1 1 μF 5 8 9 10 1 IN GND GND GND OVP FLT OUT OUT EN GND 3 7 6 4 2 VOUT R 1.5 kΩ C3 C2 1 μF R2 110 kΩ JP1 Enable tc242 Figure 26. AAT4687 Evaluation Board Schematic Table 6. AAT4687 Evaluation Board Bill of Materials Component Part number Description Manufacturer U1 AAT4687 Over-voltage protection switch Skyworks R1 RC0603FR-07499KL Resistor 499 k 1/10W 1% 0603 SMD Yageo R2 RC0603FR-07110KL Resistor 110 k 1/10W 1% 0603 SMD Yageo R3 RC0603FR-071K5L Resistor 1.5 k 1/10W 1% 0603 SMD Yageo C1 GRM31MR71H105K Ceramic capacitor 1 F 1206 X7R 50V 10% Murata C2 GRM21BR71C105K Ceramic capacitor 1 F 0805 X7R 16V 10% Murata C3 Not populated D1 0805KRCT HB Red LED 0805 (a) Component Side Layout HB (b) Solder Side Layout tc243 Figure 27. AAT4687 Evaluation Board Layer Details Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201962C • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 3, 2014 9 DATA SHEET • AAT4687 OVER-VOLTAGE PROTECTION SWITCH Pin 1 Location 2.20 ± 0.20 1.75 ± 0.10 0.40 BSC 0.225 ± 0.075 Top View 0.45 ± 0.10 0.100 0.05 ± 0.05 0.15 ± 0.05 1.10 MAX 0.85 ± 0.15 2.00 ± 0.20 4°° ± 4°° 2.10 ± 0.30 7°° ± 3°° Side View End View All dimensions in millimeters. tc37 Figure 28 AAT4687 10-pin SC70JW Package Dimensions 4.00 ± 0.10 1.75 ± 0.05 1.30 ± 0.10 2.00 ± 0.05 1.55 ± 0.05 8.00 ± 0.30 3.50 ± 0.05 2.50 ± 0.10 Pin 1 Location 2.40 ± 0.10 0.20 ± 0.03 4.00 ± 0.10 All dimensions are in millimeters. tc38 Figure 29. AAT4687 10-pin SC70JW Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 12 June 3, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201962C DATA SHEET • AAT4687 OVER-VOLTAGE PROTECTION SWITCH Ordering Information Model Name OVP Trip Voltage Adjustable Part Marking (Note 1) 7QXYY Manufacturing Part Number (Note 2) Evaluation Board Part Number AAT4687IJQ-T1 AAT4687IJQ-EVB AAT4687IJQ-6.5-T1 AAT4687IJQ-6.5-EVB AAT4687 over-voltage protection switch 6.5 V Note 1: XYY = assembly and date code. Note 2: Sample stock is generally held on part numbers listed in BOLD. Copyright © 2012-2014 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 for errors or omissions in these materials or the information contained herein. Skyworks may change its documentation, products, services, specifications 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 conflicts, incompatibilities, or other difficulties 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 hereunder, 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, INCLUDING 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 environmental 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 specifications as a result of design defects, errors, or operation of products outside of published parameters or design specifications. 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 specifications or parameters. Skyworks and the Skyworks symbol are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands and names are for identification 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. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 201962C • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 3, 2014 13
AAT4687IJQ-1-T1 价格&库存

很抱歉,暂时无法提供与“AAT4687IJQ-1-T1”相匹配的价格&库存,您可以联系我们找货

免费人工找货