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U8021 数据表(PDF) 5 Page - Unisonic Technologies |
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U8021 数据表(HTML) 5 Page - Unisonic Technologies |
5 / 6 page U8021 Preliminary CMOS IC UNISONICTECHNOLOGIESCO.,LTD 5 of 6 www.unisonic.com.tw QW-R502-A13.a ELECTRICAL CHARACTERISTICS (Unless specified: VCC= 5V~16V, VFB=VOUT, VBST-VPN=5V~8.2V, TA=-25°C~85°C) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT General VCC Supply Voltage VCC 4 16 V VCC Quiescent Current IQVCC VCC=12V, VBST-VPN=8.2V 5 7 mA VCC Under Voltage Lockout UVVCC VHYST=100mV 4 V BST to PN Supply Voltage VBST_PN 4 10 V BST Quiescent Current IQBST VCC=12V, VBST-VPN=8.2V 3 mA Internal LDO LDO Output VDRV 8.6V<VCC<16V 8 V Dropout Voltage VDROP 4V<VCC<8.6V 0.4 V Linear Section Reference Voltage VOL LDFB=VOL, TA=25°C, VCC=12V 0.65 0.75 0.85 V Load Regulation IO=0~1A, VIN=3.3V, VCC=12V 0.4 % Line Regulation VIN=3.2V~3.4V, VCC=12V 0.4 % VCC Supply Rejection VIN=3.3V, VCC=10V~14V 0.4 % Gate Sourcing Current VGATE=6.5V 1 mA Gate Sinking Current VGATE=6.5V 1 mA LDFB Input Bias Current LDFB=.5V -0.2 -1.0 uA Soft Start Time VIN=3.3V, VCC=12V TA=25°C 1.5 ms Switching Section Reference Voltage VREF TA=25°C, VCC=12V 0.495 0.500 0.505 V Load Regulation IO=0.2~4A 0.4 % Line Regulation VCC=10V~14V 0.4 % Operating Frequency FS 500 600 700 KHz Ramp Amplitude (Note 2) Vm 0.8 V Maximum Duty Cycle (Note 2) DMAX 97 % Minimum On-Time (Note 2) TON_MIN 125 ns DH Rising/Falling Time tSRC_DH 6V Swing at CL=3.3nF, VBST-VPN=8.2V 40 ns tSINK_DH 25 DL Rising/Falling Time tSRC_DL 6V Swing at CL=3.3nF, VDRV=8.2V 30 ns tSINK_DL 40 DH, DL Nonoverlapping Time 30 ns Voltage Error Amplifier Output Source Current 0.9 mA Output Sink Current 0.9 mA Notes: 1. This device is ESD sensitive. Use of standard ESD handling precautions is required. 2. Guaranteed by design, not tested in production. |
类似零件编号 - U8021 |
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类似说明 - U8021 |
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