aoz1401 Alpha & Omega Semiconductor, aoz1401 Datasheet
aoz1401
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aoz1401 Summary of contents
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... The thermal shutdown feature adds another layer of protection. The fault status indicator provides status information about fault conditions to the host. The AOZ1401 is available in a 2mm x 2mm 8-pin DFN package and is rated over a -40°C to +85°C ambient temperature range. Typical Application ...
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... GND pin must be connected to ground at all times. Rev. 1.0 July 2010 Package DFN-8 for additional information. VIN OUT 1 8 GND 2 7 ILIM AOZ1401DI NC VBAT 3 6 FAULTB ENB 4 5 Top View (DFN 2x2) Description www.aosmd.com AOZ1401DI Environmental RoHS Compliant Page ...
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... VIN (with respect to GND) OUT(with respect to GND) ILIM, FAULTB, ENB, VBAT (with respect to GND) VIN OUT FAULTB Conditions Min. 3 www.aosmd.com AOZ1401DI Rating –0.3V to 30V –0.3V to 12V –0. 2.0A 2.0A 15mA –40°C to 150°C –65°C to 150°C 300°C 2kV 200V Max ...
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... ILIM Ω ENB = HI 25k ILIM ENB = LO OUT ENB = LO ENB = LO ENB = ENB = LO ENB = LO Ω ENB = LO 25k ILIM ENB = LO ENB = LO ENB = LO, VIN > 4.4V ENB = LO, VIN > 4.4V ENB = LO www.aosmd.com AOZ1401DI Min. Typ. Max. Units 2.6 2.7 2.8 V 260 400 500 µ µA 300 mV V 5.67 5 ...
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... Input OVP Comp Bias Gen Rev. 1.0 July 2010 Test Conditions ENB = 0V ENB = 1. 5mA SINK FAULTB Driver OCP Control Logic Battery OVP Comp Figure 1. Simplified Block Diagram www.aosmd.com AOZ1401DI Min. Typ. Max. Units 20 °C 0 0 µA 15 µA 0 µA OUT ...
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... Rev. 1.0 July 2010 VIN VOUT FAULTB Figure 3. OVP at Power-On, V VIN VOUT IOUT FAULTB = 5V to 12V, Figure 5. Recovery from OVP VIN VOUT IOUT FAULTB Figure 7. OCP, R Shows Current Limiting and Soft-stop www.aosmd.com AOZ1401DI = 7. Switches from 6.6Ω to 3.3Ω, OUT Page ...
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... Figure 11. Drop-out Voltage vs. Temperature 1800 1600 1400 Increasing 1200 Decreasing 1000 800 600 400 200 110 130 www.aosmd.com AOZ1401DI Figure 9. Battery OVP and Counter 4V Vin 5V Vin -30 - 110 Temp (°C) Ilim(mA RLim (KOhm) Figure 13. ILim vs. RLim ...
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... Figure 15. Battery Over Voltage Protection vs. Temperature 500 Leakage 450 400 350 300 250 200 150 100 110 130 Figure 17. Supply Current vs. Input Voltage www.aosmd.com AOZ1401DI Increasing Decreasing - 110 130 Temp (° Vin (V) ...
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... Incr OCP counter Yes ENB = Hi Turn off FET Count <15 FAULTB = Low ? Incr BAT counter Turn off FET FAULTB = Low www.aosmd.com AOZ1401DI Any state If VIN <V (UVLO Power Down Any state If ENB = Hi Reset Go to Reset Wait t ON(OCP Reset Page ...
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... Theory of Operation The AOZ1401DI is an integrated Li+ charger protection IC that protects against input over-voltage, input over- current, and battery over-voltage conditions. When the device detects an input over-voltage condition, it turns off the internal MOSFET, preventing damage of the charger. When the device detects a battery over-voltage condition, it also turns off the internal MOSFET to prevent battery from being over-charged ...
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... Rev. 1.0 July 2010 PCB Layout Guidelines AOZ1401DI uses DFN 2x2 package with a thermal PAD. The thermal PAD should be thermally coupled with the PCB ground plane for good thermal performance, This will require a copper pad directly under the IC in most applications ...
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... REF. D 2.00 BSC D1 1.35 1.50 1.60 E 2.00 BSC E1 0.75 0.90 1.00 e 0.50 BSC L 0.20 0.30 0.40 R 0.20 aaa 0.15 bbb 0.10 ccc 0.10 ddd 0.08 www.aosmd.com AOZ1401DI E Pin #1 ID Option 1 L Pin #1 ID Option 2 Chamfer 0.2 x 45° Dimensions in inches Min. Nom. Max. A 0.028 0.030 0.031 A1 0.000 0.001 0.002 b 0.007 0.010 0.012 c 0.008 REF. D 0.079 BSC D1 ...
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... 1.50 1.00 8.00 1.75 ±0.10 +0.10/-0 +0.25/-0 +0.30/-0. ø180.00 60.0 8.4 13.0 ±0.50 ±0.50 ±0.20 +1.5/-0.0 Components Tape Orientation in Pocket www.aosmd.com AOZ1401DI Feeding Direction 3.50 4.00 4.00 2.00 0.254 ±0.05 ±0.10 ±0.10 ±0.10 ±0. 1.5 13.5 3.0 ±0.50 Min. Min. Leader Tape 500mm Min. Page ...
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... A critical component in any component of a life support, device, or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system affect its safety or effectiveness. www.aosmd.com AOZ1401DI Assembly Location Code Option Code Assembly Lot Code Page ...