SU19 Datasheet The power section is a "boost" converter, with the inductor operating in the continuous mode. In this mode, the duty cycle is dependent on the ratio between input and output voltages.Also,the input current haslow switching frequency ripple,which means that the line noise is low. Furthermore, the output voltage must be higher than the peak value of the highest expected AC line voltage, and all components must be rated accordingly. SU19 Price| | 1 | < | | tAW | | tWR1 | | | | | | | | | +t | | | | 1 LL,VV r | | | | | | tWP | | | | <-tDW | tDH | q- | | < DATAVALID> | | | | | | | | | | |
SU19 on stock| Symbol | Parameter | SOT23-5L | Unit | | Rthj_case | Thermal Resistance Junction-case | 81 | oC/w | | | | |
| IVIN | VCC Supply Current | VIN = 5V (Below UVLO) Vlw = 8V, 200ffA Pull-Up on VBAT (4.5V) No Bat VIN = 8V, VBAT = 2.5V Trickle Vlw = 8V, VBAT = 3.5V Charge | q q q | 1 5 12 1.0 1.4 2.0 10 17 21 0.5 3.0 5.0 | mA mA mA | | VLKOH | Viw Undervoltage Lockout High | | q | 5.5 6.5 7.5 | V | | VLKOL | Viw Undervoltage Lockout Low | | q | 5.0 6.0 7.0 | V | | IVBAT | VBAT Current | VIN = 5V (Below UVLO), VBAT = 4.2V VIN = 8V, VBAT = 4.25V No Bat VIN = 8V, VBAT = 2.5V Trickle Vlw = 8V, VBAT = 3.5V Charge | q q q | -1 - 0.1 1 40 73 120 -19 -16 -9.5 -2.7 -1.3 -0.5 | ccA mA mA | | VCLAMP | VBAT Clarrip | No Bat (External 200ffA Pull-Up on VBAT) | q | 4.25 4.5 475 | V | | VMAX | High VBAT Threshold | High Going Threshold Low Going Threshold | q q | 4.25 4.51 4.75 4.25 4.50 4.75 | V V | | VMIN | Low VBAT Threshold | High Going Threshold Low Going Threshold | q q | 2.55 2.7 2.85 2.45 2.6 2.75 | V V | | ISENSE | SENSE Pin Current | Charge State, VSENSE = 3V | q | 85 100 115 | | | VC10 | SENSE Pin C/10 0ffset | Charge State, Vcio = (VBAT - VSENSE) | q | ±1 ±2.5 | mV | | | | | | |
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