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SC820ULTRT Datasheet(PDF) 3 Page - Semtech Corporation |
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SC820ULTRT Datasheet(HTML) 3 Page - Semtech Corporation |
3 / 22 page SC820 3 Exceeding the above specifications may result in permanent damage to the device or device malfunction. Operation outside of the parameters specified in the Electrical Characteristics section is not recommended. NOTES: (1) Tested according to JEDEC standard JESD22-A114D. (2) Operating Voltage is the input voltage at which the charger is guaranteed to begin operation. These ranges, VT ADsel-R Max to V OVP-F Min for the VAD input, V UVLR Max to V OVP-F Min for the VUSB input, apply to charging sources operating in voltage regulation. Charging sources operating in current limit may be pulled below these ranges by the charging load. Maximum operating voltage is the maximum Vsupply as defined in EIA/JEDEC Standard No. 78, paragraph 2.11. (3) Calculated from package in still air, mounted to 3 x 4.5 (in), 4 layer FR4 PCB with thermal vias under the exposed pad per JESD51 standards. Absolute Maximum Ratings VAD and VUSB (V) . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +30.0 BAT, IPRGM, IPUSB (V) . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6.5 STATB, ENB (V) . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to V BAT +0.3 VAD Input Current (A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 . 5 VUSB Input Current (A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 . 5 BAT, IPRGM, IPUSB Short-to-GND Duration . . . . . Continuous ESD Protection Level(1) (kV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Recommended Operating Conditions Operating Ambient Temperature (°C) . . . . . . . . . -40 to +85 VAD Operating Voltage(2) (V). . . . . . . . . . . . . . . . 4.60 to 8.20 VUSB Operating Voltage(2) (V). . . . . . . . . . . . . . . 4.70 to 8.20 Thermal Information Thermal Resistance, Junction to Ambient(3) (°C/W) . . . . . 68 Maximum Junction Temperature (°C) . . . . . . . . . . . . . . +150 Storage Temperature Range (°C) . . . . . . . . . . . . -65 to +150 Peak IR Reflow Temperature (10s to 30s) (°C) . . . . . . . +260 Test Conditions: V VAD = V VUSB = 4.75V to 5.25V; C VAD = C VUSB = C BAT = 2.2μF; V BAT = 3.7V; Typ values at 25°C; Min and Max at -40°C < T A < 85°C, unless specified. Parameter Symbol Conditions Min Typ Max Units VAD Select Rising Threshold VT ADsel-R 4.30 4.45 4.60 V VAD Deselect Falling Threshold (1) VT ADsel-F V VAD > V BAT 2.70 2.85 3.00 V VUSB Select Rising Threshold VT USBsel-R V VUSB > V BAT 4.20 4.35 V VUSB Deselect Falling Threshold VT USBsel-F V VUSB > V BAT 3.65 4.00 V VUSB Select Hysteresis VT USBsel-H VT USBsel-R - VT USBsel-F 100 mV OVP Rising Threshold VT OVP-R VAD or VUSB input 9.6 V OVP Falling Threshold VT OVP-F VAD or VUSB input 8.2 V OVP Hysteresis VT OVP-H (VT OVP-R - VT OVP-F )50 mV VAD Charging Disabled Quiescent Current Iq VAD_DIS V VUSB = 0V, V ENB = V BAT 23 mA VAD Charging Enabled Quiescent Current Iq VAD_EN V VUSB = 0V, V ENB = 0V, excluding I BAT , I IPRGM , and I IPUSB 23 mA VUSB Charging Disabled Quiescent Current Iq VUSB_DIS V VAD = 0V; V ENB = V BAT 23 mA Electrical Characteristics |
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