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CS5211EDR14G Datasheet(PDF) 4 Page - ON Semiconductor |
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CS5211EDR14G Datasheet(HTML) 4 Page - ON Semiconductor |
4 / 13 page CS5211 http://onsemi.com 4 ELECTRICAL CHARACTERISTICS (−40°C < TA < 85°C; −40°C < TJ < 125°C; 4.5 V < VCC, VC < 14 V; 7.0 V < BST < 20 V; CGATE(H) = CGATE(L) = 3.3 nF; ROSC = 51 k; CCOMP = 0.1 mF, unless otherwise specified.) (Note 2) Characteristic Test Conditions Min Typ Max Unit Error Amplifier VFB Bias Current VFB = 0 V − 0.1 1.0 mA COMP Source Current VFB = 0.8 V 15 30 60 mA COMP SINK Current VFB = 1.2 V 15 30 60 mA Open Loop Gain − − 98 − dB Unity Gain Bandwidth C = 0.1 mF − 50 − kHz PSRR @ 1.0 kHz − − 70 − dB Output Transconductance − − 32 − mmho Output Impedance − − 2.5 − MW Reference Voltage −0.1 V < SGND < 0.1 V, COMP = VFB, Measure VFB to SGND 0.977 0.992 1.007 V COMP Max Voltage VFB = 0.8 V 2.5 3.0 − V COMP Min Voltage VFB = 1.2 V − 0.1 0.2 V GATE(H) and GATE(L) High Voltage (AC) GATE(L), GATE(H) 0.5 nF < CGATE(H) = CGATE(L) < 10 nF VC − 0.5 BST − 0.5 − − V Low Voltage (AC) GATE(L) or GATE(H) 0.5 nF < CGATE(H); CGATE(L) < 10 nF − − 0.5 V Rise Time VC = BST = 10 V, Measure: 1.0 V < GATE(L) < 9.0 V, 1.0 V < GATE(H) < 9.0 V − 40 80 ns Fall Time VC = BST = 10 V, Measure: 1.0 V < GATE(L) < 9.0 V, 1.0 V < GATE(H) < 9.0 V − 40 80 ns GATE(H) to GATE(L) Delay GATE(H) < 2.0 V, GATE(L) > 2.0 V 40 70 110 ns GATE(L) to GATE(H) Delay GATE(L) < 2.0 V, GATE(H) > 2.0 V 40 70 110 ns GATE(H)/(L) Pull−Down Resistance to PGND 20 50 115 KW Overcurrent Protection OVC Comparator Offset Voltage 0 V < IS+ < VCC, 0 V < IS− < VCC 54 60 66 mV IS+ Bias Current 0 V < IS+ < VCC −1.0 0.1 1.0 mA IS− Bias Current 0 V < IS− < VCC −1.0 0.1 1.0 mA COMP Discharge Threshold − 0.20 0.25 0.30 V COMP Discharge Current in OVC Fault Mode COMP = 1.0 V 2.0 5.0 8.0 mA PWM Comparator Transient Response COMP = 0 − 1.5 V, VFFB, 20 mV overdrive − 100 200 ns PWM Comparator Offset VFB = VFFB = 0 V; Increase COMP until GATE(H) starts switching 0.425 0.475 0.525 V Artificial Ramp Duty Cycle = 90% 40 70 100 mV VFFB Bias Current VFFB = 0 V − 0.1 1.0 mA VFFB Input Range (Note 4) − − 1.1 V Minimum Pulse Width − − − 200 ns Oscillator Switching Frequency ROSC = 18 k 600 750 900 kHz Switching Frequency ROSC = 51 k 240 300 360 kHz Switching Frequency ROSC = 115 kW 120 150 180 kHz ROSC Voltage − 1.21 1.25 1.29 V 2. Guaranteed by design. Not tested in production. |
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