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CS5212EDR14 Fiches technique(PDF) 4 Page - ON Semiconductor |
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CS5212EDR14 Fiches technique(HTML) 4 Page - ON Semiconductor |
4 / 16 page CS5212 http://onsemi.com 4 ELECTRICAL CHARACTERISTICS (continued) (–40 °C < TA < 85°C (CS5212E); 0°C < TA < 70°C (CS5212G); –40°C < TJ < 125°C; 3.1 V < VCC < 3.5 V; 3.1 V < VC < 7.0 V; 4.5 V < BST < 20 V; CGATE(H) = CGATE(L) = 3.3 nF; ROSC = 51 k; CCOMP = 0.1 µF, unless other- wise specified.) Characteristic Unit Max Typ Min Test Conditions GATE(H) and GATE(L) Rise Time VC = BST = 7.0 V, Measure: 0.7 V < GATE(L) < 6.3 V, 0.7 V < GATE(H) < 6.3 V – 40 80 ns Fall Time VC = BST = 7.0 V, Measure: 0.7 V < GATE(L) < 6.3 V, 0.7 V < GATE(H) < 6.3 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 K Ω 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 µA IS– Bias Current 0 V < IS– < VCC –1.0 0.1 1.0 µA 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 µA 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 0.35 0.40 0.45 V Artificial Ramp Duty Cycle = 90% 40 70 100 mV VFFB Bias Current VFFB = 0 V – 0.1 1.0 µA VFFB Input Range Note 3. – – 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 k 120 150 180 kHz ROSC Voltage – 1.21 1.25 1.29 V General Electrical Specifications VCC Supply Current COMP = 0 V (no switching) – 5.0 8.0 mA BST/VC Supply Current COMP = 0 V (no switching) – 2.0 3.0 mA Start Threshold GATE(H) Switching, COMP Charging 2.7 2.8 2.9 V Stop Threshold GATE(H) Not Switching, COMP Not Charging 2.6 2.7 2.8 V Hysteresis Start–Stop 75 100 125 mV Sense Ground Current Note 4. – 0.15 1.00 mA 3. GBD. 4. Recommended maximum operating voltage between the three grounds is 200 mV. |
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