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UA1538G-QM1-Y Fiches technique(PDF) 8 Page - Unisonic Technologies |
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UA1538G-QM1-Y Fiches technique(HTML) 8 Page - Unisonic Technologies |
8 / 21 page UA1538 LINEAR INTEGRATED CIRCUIT UNISONICTECHNOLOGIESCO.,LTD 8 of 21 www.unisonic.com.tw QW-R109-023,C ELECTRICAL CHARACTERISTICS(Cont.) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT H-BRIDGE DRIVER PART MUTE2 OFF Threshold Voltage VM2OFF IN2=1.8V 0.8 V MUTE34 ON Threshold Voltage VM34ON IN3=IN4=1.8V 0.8 V MUTE34 OFF Threshold Voltage VM34OFF IN3=IN4=1.8V 2.0 V VREF ON Threshold Voltage VREFON IN1=IN2=IN3=IN4=1.8V 1.2 V VREF OFF Threshold Voltage VREFOFF IN1=IN2=IN3=IN4=1.8V 0.8 V BRAKE1 Brake Current IBRAKE1 Current difference between BRAKE pin "H" time and "L" time. 4 7 10 mA PWM POWER SUPPLY DRIVING PSW Sink Current IPSW IN1=2.1V 10 13 17 mA HVCC Level Shift Voltage VSHIF IN1=1.8V, HVCC-OUT1F 0.35 0.45 0.55 V HVCC Leak Current IHLK HVcc=9.0V, VSYS1=VSYS2=BATT=0V 0 5 μA PWM Amp Transfer Gain GPWM IN1=1.8V, HVCC=1.2 ~ 1.4V 1/60 1/50 1/40 1/kΩ DC-DC CONVERTER Error Amp VSYS1 Threshold Voltage VS1TH 3.05 3.20 3.35 V EO Pin Output Voltage "H" VEOH EI=0.7V, Io=-100µA 1.4 1.6 V EO Pin Output Voltage "L" VEOL EI=1.3V, Io=100µA 0.3 V SHORT CIRCUIT PROTECTION SPRT Pin Voltage VSPR EI=1.3V 0 0.1 V EO=H SPRT Pin Current1 ISPR1 EI=0.7V 6 10 16 μA OFF=L SPRT Pin Current2 ISPR2 EI=1.3V, OFF=0V 12 20 32 μA SPRT Pin Current3 Over-Voltage ISPR3 EI=1.3V, BATT=9.5V 12 20 32 μA SPRT Pin Impedance RSPR 175 220 265 kΩ SPRT Pin Threshold Voltage VSPTH EI=0.7V, CT=0V 1.10 1.20 1.30 V Over-Voltage Protection Detect VHVPR BSEN Pin Voltage 7.5 9.0 V TRANSISTOR DRIVING SW Pin Output Voltage1 "H" VSW1H BATT=CT=1.5V, VSYS1=VSYS2=0V, IO=-2mA Starting Time 0.78 0.98 1.13 V SW Pin Output Voltage2 "H" VSW2H CT=0V, Io=-10mA,EI=0.7V, SPRT=0V 1.00 1.50 V SW Pin Output Voltage2 "L" VSW2L CT=2.0V, Io=10mA 0.30 0.45 V SW Pin Oscillating Frequency1 fSW1 CT=470pF, VSYS1=VSYS2=0V Starting Time 65 80 95 kHz SW Pin Oscillating Frequency2 fSW2 CT=470pF, CLK=0V 60 70 82 kHz SW Pin Oscillating Frequency3 fSW3 CT=470pF 88.2 kHz SW Pin Minimum Pulse Width TSWMIN CT=470pF, EO=0.5V→0.7V Sweep 0.01 0.60 μs Pulse Duty Start DSW1 CT=470pF,VSYS1=VSYS2=0V 40 50 60 % Max. Pulse Duty At Self-Running DSW2 CT=470pF, EI=0.7V, CLK=0V 70 80 90 % Max. Pulse Duty At CLK Synchronization DSW3 CT=470pF, EI=0.7V 65 75 85 % |
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