AW33905FCR

AW33901/AW33902/AW33905 AW33909/AW33910 Sep. 2018 V1.2 Over-Voltage Protection Load Switch FEATURES GENERAL DESCRIPTION  Highly reliable1.2mm × 1.2mm FCQFN-9 package    Integrated low Rdson nFET switch: typical 30m 5A continuous current capability Default Over-Voltage Protection (OVP) threshold  AW33901: 5.95V  AW33902: 6.2V  AW33905: 6.8V  AW33909: 9.98V  AW33910: 10.5V OVP threshold adjustable range: 4V to 20V Input maximum voltage rating: 32VDC Fast turn-off response: typical 50ns Over-Temperature Protection (OTP) Under-Voltage Lockout (UVLO) The AW339XX features an ultra-low 30m (typ.) Rdson nFET load switch. When input voltage exceeds the OVP threshold, the switch is turned off very fast to prevent damage to the protected downstream devices. The IN pin is capable of withstanding fault voltages up to 32VDC.      The default OVP threshold is 5.95V (AW33901), 6.2V (AW33902), 6.8V (AW33905), 9.98V (AW33909) and 10.5V (AW33910). The OVP threshold can be adjusted from 4V to 20V through external OVLO pin. The device features an open-drain output ACOK, when VIN_UVLO VIN_UVLO to ACOK low 30 ms tON Switch turn-on time RL = 100, CL = 22F, VOUT from 10% VIN to 90% VIN 2 ms tOFF Switch turn-off time CL = 0F, RL = 100, VIN > VIN_OVLO to VOUT stop rising, VIN rise at 10V/s 50 ns tDEB tSTART TIMING DIAGRAM OVP trip level VIN tDEB tDEB VOUT tON VACOK tON tOFF tSTART tSTART Figure 6 Timing diagram www.awinic.com.cn 9 Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW33901/AW33902/AW33905 AW33909/AW33910 Sep. 2018 V1.2 TYPICAL CHARACTERISTICS Table 1 Table of Figures INDEX Figure No Rdson vs. Output Current FIGURE 7 Rdson vs. Temp. (IOUT = 1A) FIGURE 8 Rdson vs. Input Voltage (IOUT = 1A) FIGURE 9 Input Supply Current vs. Supply Voltage FIGURE 10 Normalized Internal OVP Threshold FIGURE 11 External OVP Threshold FIGURE 12 Power-up (COUT = 1F, 100mA load) FIGURE 13 Power-up (COUT = 100F, 100mA load) FIGURE 14 OVP Response (AW33905) FIGURE 15 400V Surge Response (AW33905 with 12V TVS) FIGURE 16 VIN = 5V, VOVLO = 0V, CIN = 0.1F, COUT = 1F, and TA = 25°C unless otherwise specified. 40.0 50.0 35.0 Rdson(mΩ) Rdson(mΩ) 45.0 40.0 35.0 30.0 30.0 25.0 20.0 25.0 0 1 2 3 4 5 -40 Output Current(A) Figure 7 Rdson vs. Output Current www.awinic.com.cn -15 10 35 60 85 Temperature(℃) Figure 8 Rdson vs. Temp. (IOUT = 1A) 10 Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW33901/AW33902/AW33905 AW33909/AW33910 Sep. 2018 V1.2 TYPICAL CHARACTERISTICS (CONTINUED) VIN = 5V, VOVLO = 0V, CIN = 0.1F, COUT = 1F, and TA = 25°C unless otherwise specified. 40.0 Input Supply Current (A) 400 Rdson(mΩ) 35.0 30.0 25.0 350 –40° C 300 25° C 85° C 250 200 150 100 50 20.0 0 0 4 8 12 16 20 0 5 10 Input Voltage(V) 20 25 30 35 Input Voltage (V) Figure 9 Rdson vs. Input Voltage (IOUT = 1A) Figure 10 Input Supply Current vs. Supply Voltage 1.10 External OVP Threshold Voltage Normalized Threshold Voltage 15 Normalized to TA = 25° C 1.05 1.00 0.95 0.90 1.22 1.21 1.20 1.19 1.18 -40 -15 10 35 Temperature (°C) 60 85 -40 Figure 11 Normalized Internal OVP Threshold -15 10 35 Temperature (°C) VIN 5V / div C1 C1 VOUT 5V / div 20ms / div IOUT 500mA / div C4 20ms / div Figure 13 Power-up (COUT = 1F, 100mA load). www.awinic.com.cn ACOK 2V / div C3 IOUT 100mA / div C4 VOUT 5V / div C2 ACOK 2V / div C3 85 Figure 12 External OVP Threshold VIN 5V / div C2 60 Figure 14 Power-up (COUT = 100F, 100mA load) 11 Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW33901/AW33902/AW33905 AW33909/AW33910 Sep. 2018 V1.2 TYPICAL CHARACTERISTICS (CONTINUED) VIN = 5V, VOVLO = 0V, CIN = 0.1F, COUT = 1F, and TA = 25°C unless otherwise specified. VIN 5V / div C1 C2 VOUT 5V / div C3 ACOK 2V / div Figure 15 OVP Response (AW33905) IIN 100A / div C2 VOUT 5V / div C3 1ms / div www.awinic.com.cn VIN 10V / div C1 20us / div Figure 16 400V Surge Response (AW33905 with 12V TVS) 12 Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW33901/AW33902/AW33905 AW33909/AW33910 Sep. 2018 V1.2 DETAILED FUNCTIONAL DESCRIPTION Device Operation If the input voltage is between UVLO and OVP threshold, the internal charge pump begins to work after debounce time, the gate of the nFET switch will be slowly charged high till the switch is fully on. ACOK will be driven low about 30ms after VIN valid, indicating the switch is on with a good power input. If the input voltage exceeds the OVP trip level, the switch will be turned off in about 50ns. If input voltage falls below UVLO threshold, or over-temperature happens, the switch will also be turned off. Over-Voltage Protection If the input voltage exceeds the OVP rising trip level, the switch will be turned off in about 50ns. The switch will remain off until VIN falls below the OVP falling trip level. OVP Threshold Adjustment If the default OVP threshold is used, OVLO pin must be grounded. If OVLO pin is not grounded, and by connecting external resistor divider to OVLO pin as shown in the typical application circuit, between IN and GND, the OVP threshold can be adjusted as following: VIN_OVLO = R1+R2 VOVLO_TH R2 The adjustment range is 4V to 20V. When the OVLO pin voltage VOVLO exceeds VOVLO_SEL (0.26V typical), VOVLO is compared with the reference voltage VOVLO_TH (1.2V typical) to judge whether input supply is over-voltage. It is recommended that the total resistance of R1 and R2 is less than 100kΩ.For example, if we select R1 = 51kΩ and R2 = 12.4kΩ, then the new OVP threshold calculated from the above formula is 6.14V. ACOK Output The device features an open-drain output ACOK, it should be connected to the system I/O rail through a pullup resistor. If the device is enabled and VIN_UVLO260°C Time within 5°C of actual peak temp 20-40 sec Ramp-down rate Max. 6°C /sec Time from 25°C to peak temp Max. 8min NOTE 1: All data are compared with the package-top temperature, measured on the package surface; NOTE 2: AW339XX adopted the Pb-Free assembly. www.awinic.com.cn 19 Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW33901/AW33902/AW33905 AW33909/AW33910 Sep. 2018 V1.2 REVISION HISTORY Vision Date V0.9 November 2017 Change Record Datasheet V0.9 Released. 1. Added AW33901 part number. V1.0 December,2017 2. Added Typical Characteristics. 3. Added Tape and Reel information. 4. Added Solder Mask Details. 1. Modified Reel information. V1.1 February,2018 2. Modified POD information. 3. Modified Solder Mask Details. V1.2 www.awinic.com.cn September, 2018 Storage Temperature Modified 20 Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD AW33901/AW33902/AW33905 AW33909/AW33910 Sep. 2018 V1.2 DISCLAIMER Information in this document is believed to be accurate and reliable. However, Shanghai AWINIC Technology Co., Ltd (AWINIC Technology) does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. AWINIC Technology reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. Customers shall obtain the latest relevant information before placing orders and shall verify that such information is current and complete. This document supersedes and replaces all information supplied prior to the publication hereof. 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