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UA1538 Datasheet(PDF) 9 Page - Unisonic Technologies |
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UA1538 Datasheet(HTML) 9 Page - Unisonic Technologies |
9 / 21 page UA1538 LINEAR INTEGRATED CIRCUIT UNISONICTECHNOLOGIESCO.,LTD 9 of 21 www.unisonic.com.tw QW-R109-023,C ELECTRICAL CHARACTERISTICS(Cont.) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT INTERFACE OFF Pin Threshold Voltage VOFTH EI=1.3V VSYS1- 2.0 V OFF Pin Bias Current IOFF OFF=0V 75 95 115 μA START Pin ON Threshold Voltage VSTATH1 VSYS1=VSYS2=0V, CT=2.0V BATT- 1.0 V START Pin OFF Threshold Voltage VSTATH2 VSYS1=VSYS2=0V, CT=2.0V BATT- 0.3 V START Pin Bias Current ISTART START=0V 10 13 20 16 30 19 μA CLK Pin Threshold Voltage "H" VCLKTHH 2.0 V CLK Pin Threshold Voltage "L" VCLKTHL 0.8 V CLK Pin Bias Current ICLK CLK=3.2V 10 μA DEAD TIME DEAD Pin Impedance RDEAD 52 65 78 kΩ DEAD Pin Output Voltage VDEAD 0.78 0.88 0.98 V STARTER CIRCUIT Starter Switching Voltage VSTNM VSYS1=VSYS2=0→3.2V, START=0V 2.3 2.5 2.7 V Starter Switching Hysteresis Width VSNHS START=0V 130 200 300 mV Discharge Release VDIS 1.63 1.83 2.03 V EMPTY DETECTION EMP Detection Voltage 1 VEMPT1 VSEL=0V 2.1 2.2 2.3 V EMP Detection Voltage 2 VEMPT2 ISEL=- 2µA 1.7 1.8 1.9 V EMP Detection Hysteresis Voltage 1 VEMHS1 VSEL=0V 25 50 100 mV EMP Detection Hysteresis Voltage 2 VEMHS2 ISEL=- 2µA 25 50 100 mV EMP Pin Output Voltage VEMP IO=1mA, BSEN=1V 0.5 V EMP Pin Output Leak Current IEMPL BSEN=2.4V 1.0 μA BSEN Pin Input Resistance RBSEN VSEL=0V 17 23 27 kΩ BSEN Pin Leak Current IBSENL VSYS1=VSYS2=0V, BSEN=4.5V 1.0 V SEL Pin Detection Voltage VSELTH VSELTH=BATT-SEL BSEN=2.0V 1.5 V SEL Pin Detection Current ISELT -2 μA RESET CIRCUIT VSYS1 RESET Threshold Voltage Ratio HSRT Comparison with error amplifier threshold voltage 85 90 95 % RESET Detection Hysteresis Width VRSTHS 25 50 100 mV RESET Pin Output Voltage VRST Io=1mA, VSYS1=VSYS2=2.8V 0.5 V RESET Pin PULL UP Resistance RRST 72 90 108 kΩ AMUTE Pin Output Voltage 1 VAMT1 Io=-1mA, VSYS1=VSYS2=2.8V BATT -0.4 BATT V AMUTE Pin Output Voltage 2 VAMT2 Io=-1mA,START=0V, VSYS1=VSYS2=0V BATT -0.4 BATT V AMUTE Pin Pull Down Resistance RAMT 77 95 113 kΩ |
Similar Part No. - UA1538_11 |
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Similar Description - UA1538_11 |
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