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CS5304 Datenblatt(PDF) 6 Page - ON Semiconductor |
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CS5304 Datenblatt(HTML) 6 Page - ON Semiconductor |
6 / 19 page CS5304 http://onsemi.com 6 ELECTRICAL CHARACTERISTICS (0°C < TA < 70°C; 0°C < TJ < 125°C; 4.7 V < VCCL < 14 V; 8.0 V < VCCH < 20 V; CGATE(H) = 3.3 nF, CGATE(L) = 3.3 nF, RROSC = 53.6 k, CCOMP = 0.1 mF, CREF = 0.1 mF, DAC Code 10000, CVCC = 1.0 mF, ILIM ≥ 1.0 V; unless otherwise specified.) Characteristic Unit Max Typ Min Test Conditions Voltage Feedback Error Amplifier VFB Bias Current, (Note 2) 0.9 V < VFB < 1.8 V 5.5 6.0 6.5 mA COMP Source Current COMP = 0.5 V to 2.0 V; VFB = 1.6 V; DAC = 00000 15 30 60 mA COMP Sink Current COMP = 0.5 V to 2.0 V; VFB = 1.8 V; DAC = 00000 15 30 60 mA COMP Discharge Threshold Voltage − 0.20 0.27 0.34 V Transconductance −10 mA < ICOMP < +10 mA − 32 − mmho Output Impedance − − 2.5 − MW Open Loop DC Gain Note 3. 60 90 − dB Unity Gain Bandwidth 0.01 mF COMP Capacitor − 400 − kHz PSRR @ 1.0 kHz − − 70 − dB COMP Max Voltage VFB = 1.65 V COMP Open; DAC = 00000 2.4 2.7 − V COMP Min Voltage VFB = 1.8 V COMP Open; DAC = 00000 − 0.1 0.2 V Hiccup Latch Discharge Current − 2 5.0 10 mA PWM Comparators Minimum Pulse Width Measured from CSx to GATE(H), V(VFB) = V(CSREF) = 0 V, V(COMP) = 0.5 V, 60 mV step applied between VCSX and VCREF − 350 515 ns Channel Startup Offset V(CS1) = V(CS2) = V(CS3) = V(VFB) = V(CSREF) = 0 V; Measure V(COMP) when GATE1(H), 2(H), 3(H) switch high 0.3 0.4 0.5 V GATE(H) and GATE(L) High Voltage (AC) (Note 3). Measure VCCLX − GATE(L) or VCCHX − GATE(H) − 0 1.0 V Low Voltage (AC) (Note 3). Measure GATE(L) or GATE(H) − 0 0.5 V Rise Time GATE(H)x 1.0 V < GATE < 8.0 V; VCCHX = 10 V − 35 80 ns Rise Time GATE(L)x 1.0 V < GATE < 8.0 V; VCCLX = 10 V − 35 80 ns Fall Time GATE(H)x 8.0 V > GATE > 1.0 V; VCCHX = 10 V − 35 80 ns Fall Time GATE(L)x 8.0 V > GATE > 1.0 V; VCCLX = 10 V − 35 80 ns GATE(H) to GATE(L) Delay GATE(H) < 2.0 V, GATE(L) > 2.0 V 30 65 110 ns GATE(L) to GATE(H) Delay GATE(L) < 2.0 V, GATE(H) > 2.0 V 30 65 110 ns GATE Pull−down Force 100 mA into GATE Driver with VCCHX = VCCLX = 2.0 V − 1.2 1.6 V 2. The VFB Bias Current changes with the value of RROSC per Figure 4. 3. Guaranteed by design. Not tested in production. |
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