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ISL68233IRAZ Datasheet(PDF) 14 Page - Renesas Technology Corp |
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ISL68233IRAZ Datasheet(HTML) 14 Page - Renesas Technology Corp |
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14 / 103 page  ISL68222, ISL68233 2. Specifications R16DS0036EU0100 Rev.1.00 Page 14 of 102 Oct.1.20 Power-On Reset (POR) VCC Brownout Threshold 2.95 V VCCS Rising POR Threshold 1V VCCS Falling POR Threshold 0.9 V Enable Input High Level 2.0 V Enable Input Low Level 0.8 V Configurations Stored in Memory Number of Configuration Write Slots 28 Number of Unique Configurations Stored 16 POR to Initialization POR to Initialization Complete Time 15 ms Output Voltage Characteristics System Accuracy Note 6, closed loop VOUT set-point = 1.00V to 3.05V -0.5 0.5 % Note 6, closed loop VOUT set-point = 0.8V to 0.999V -5 5 mV Note 6, closed loop VOUT set-point = 0.25V to 0.799V -8 +8 mV Voltage Sense Amplifier Open Sense Current Only at VSEN open detection during initialization period 220 µA Input Impedance (VSEN - RGND) 140 kΩ Maximum Common-Mode Input VCC - 0.2 V Differential Input Range (VSEN - RGND) 3.05 V Output Current-Sense and Overcurrent Protection Current-Sense Accuracy SPS configuration -1 1 % Average Overcurrent Threshold Resolution 0.1 A Cycle-by-Cycle Current Limiting Threshold Resolution 0.4 A Digital Droop Droop Resolution 0.01 mV/A Oscillators Accuracy of Switching Frequency Setting ±2 % Switching Frequency Range 0.2 2.0 MHz Soft-Start Rate and VOUT Transition Rate Minimum Soft-Start Ramp Rate Programmable minimum rate 0.01 mV/µs Maximum Soft-Start Ramp Rate Programmable maximum rate 100 mV/µs Soft-Start Ramp Rate Accuracy ±2 % Minimum VOUT Transition Rate 0.01 mV/µs Maximum Fast VOUT Transition Rate 100 mV/µs VOUT Transition Rate Accuracy -4 4 % Recommended operating conditions, VCC = 3.3V, unless otherwise specified. Boldface limits apply across the operating ambient temperature range -40°C to +85°C. (Continued) Parameter Test Conditions Min (Note 7)Typ Max (Note 7)Unit |
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