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| ADP1822 |
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ADP1822 Rev. B | Page 3 of 24 SPECIFICATIONS VVCC = VPVCC = VSHDN = VFREQ = VTRKN = 5 V, SYNC = MAR = MSEL = GND. All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC). TA = 25°C, unless otherwise specified. Table 1. Parameter Conditions Min Typ Max Unit POWER SUPPLY Input Voltage 3.0 5.5 V Undervoltage Lockout Threshold VVCC rising 2.5 2.7 2.9 V Undervoltage Lockout Hysteresis VVCC 0.1 V Quiescent Current IVCC + IVCC, not switching 1 2 mA Shutdown Current SHDN = GND 10 μA Power Stage Supply Voltage 1.0 24 V ERROR AMPLIFER FB Regulation Voltage TA = −40°C to +85°C 594 600 606 mV FB Input Bias Current –100 +1 +100 nA Error Amplifier Open-Loop Voltage Gain 70 dB COMP Output Sink Current 600 μA COMP Output Source Current 110 μA PWM CONTROLLER PWM Peak Ramp Voltage 1.25 V DL Minimum On Time FREQ = VCC (300 kHz) 140 170 200 ns SOFT START SS Pull-Up Resistance SS = GND 95 kΩ SS Pull-Down Resistance VSS = 0.6 V 1.65 2.5 4.2 kΩ OSCILLATOR Oscillator Frequency FREQ = GND, TA = −40°C to +85°C 250 310 375 kHz FREQ = VCC, TA = −40°C to +85°C 470 570 720 kHz Synchronization Range FREQ = GND 300 600 kHz FREQ = VCC 600 1200 kHz SYNC Minimum Pulse Width 80 ns CURRENT SENSE CSL Threshold Voltage Relative to PGND −30 0 +30 mV CSL Output Current VCSL = 0 V, TA = −40°C to +85°C 42 50 54 μA Current Sense Blanking Period 160 ns GATE DRIVERS DH Rise Time CGATE = 3 nF, VDH = VIN, VBST − VSW = 5 V 16 ns DH Fall Time CGATE = 3 nF, VDH = VIN, VBST − VSW = 5 V 12 ns DL Rise Time CGATE = 3 nF, VDL = VIN 19 ns DL Fall Time CGATE = 3 nF, VDL = 0 V 13 ns DL Low to DH High Dead Time 33 ns DH Low to DL High Dead Time 42 ns VOLTAGE MARGINING High Output Voltage Margin Resistance MUP to FB, VMAR = VMSEL = 5 V 20 Ω Low Output Voltage Margin Resistance MDN to FB, VMAR = 5 V, VMSEL = 0 V 20 Ω TRACKING Tracking Comparator Input Offset –200 +200 mV Tracking Comparator Delay 100 ns Tracking Comparator Common-Mode Input Voltage Range 0 VVCC V TRKP Pull-Up Resistance Pull-up to VCC 200 kΩ |
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