ABLIC S-8473AAA-I8T1U

The S-8473 Series is Wireless Power Receiver Control IC, which is configured with an overvoltage detection circuit, a charge current control circuit, a VBAT voltage detection circuit, a UVLO circuit, high temperature / low temperature detection circuit, etc. This IC has a charge function to a small lithium-ion rechargeable battery.

• Power supply voltage: VDD = 2.2 V to 5.0 V
• Current consumption during charge operation: ISS1 = 250 μA typ.
• VBAT pin current consumption during power-down: lPDN = 1.0 μA max.
• UVLO detection voltage: VUVLO- = 2.0 V typ.
• Charge function to a small lithium-ion rechargeable battery Charge current: lLIM = 33 mA typ. Precharge current: |PRE = 3.3 mA typ. Precharge completion voltage: 2.4 V to 3.4 V (50 mV step) Charge completion voltage: 4.0 V to 4.5 V (50 mV step) Recharge start voltage: 3.6 V to 4.45 V Recharge start voltage = charge completion voltage − charge hysteresis voltage (The charge hysteresis voltage can be selected from a range of 0.05 V to 0.40 V in 50 mV step.) Short-circuit detection voltage: 1.5 V to 2.0 V (50 mV step) Charge timer function: The charge operation stops after the elapse of 4.0 hours. ([Cc] = 4.7 nF) The time is settable by connecting an external capacitor to the CT pin.
• High temperature / low temperature protection function: Available by connecting a thermistor to the TH pin.
• Status display function: Available by connecting an external LED to the STATUS pin. During charge operation: Lighting During charge operation stop: Lights-out During error detection: Blinking
• Operation temperature range: Ta = -40°C to +85°C
• Lead-free (Sn 100%), halogen-free.

• Device for wireless power
• Small-sized wireless charge system