| Symbol | Parameter | Test Condition | Min | Typ. | Max | Unit |
| SUPPLY VOLTAGE |
| Vcc | Operating Supply Voltage | | | | 19.5 | V |
| OVER VOL' | -AGE PROTECTION COMPARATOR |
| Vthr | Rising Threshold Voltage | | Vref -20mV | 5.1 | Vref +20mV | V |
| V3Hys | Hysteresis | | 180 | 250 | 320 | mV |
| 13 | Input Bias Current | | | 0.05 | 1 | CA |
| td | Propagation delay to output | VOVP = Vtrir +100mV | | 1 | 2 | |
| OVER CURRENT PROTECTION COMPARATOR |
| Vth | Threshold Voltage | | | | +30 | mV |
| td | Propagation delay to Output | VOCP = Vtrir -0.2V | | 0.4 | 0.9 | ccS |
| lipk | Current Source Generator | VIPK = -O.1V onlyfor L4981A | 65 | 85 | 105 | cCA |
| IL | Leakage Current | VIPK = -O.1V onlyfor L4981B | | | 5 | cCA |
| CURRENT AMPLIFIER SECTION |
| Voffset | Input Offset Voltage | VMULT OUT = VSENSE = 3.5V | | | +l | mV |
| 19bias | Input Bias Current | VSENSE= OV | -500 | 50 | 500 | nA |
| | Open Loop Gain | 1.1V " VCA OUT " 6V | 70 | 100 | | dB |
| SVR | Supply Voltage Rejection | 12V " Vcc " 19V VMULT OUT = 3.5V VSENSE = 3.5V | 68 | 90 | | dB |
| V5H | Output High Voltage | VMULT OUT = 200mV ICA OUT = -0.5mA, VIAC = OV | 6.2 | | | V |
| V5L | Output Low Voltage | VMULT OUT = -200rriV ICA OUT = 0.5mA, VIAC = OV | | | 0.9 | V |
| 15 | Output Source Current | VMULT OUT = 200mV, | 2 | 10 | | mA |
| 15 | Output Sink Current | VIAC = OV, VCA-OUT = 3.5V | 2 | 10 | | mA |
| OUTPUT SECTION |
| V20L | Output Voltage Low | ISINK = 250mA | | 0.5 | 0.8 | V |
| V20H | Output Voltage High | ISOURCE = 250mA Vcc = 15V | 1 1 5 | 12 5 | | V |
| tr | Output Voltage Rise Time | COUT= 1nF | | 50 | 150 | ns |
| tf | Output Voltage Fall Time | COUT= 1nF | | 30 | 100 | ns |
| VGDRV | Voltage Clamp | ISOURCE = OmA | 13 | 16 | 19 | V |
| TOTAL STANDBY CURRENT SECTION |
| 119start | Supply Current before start up | Vcc= 14V | | 0.3 | 0.5 | mA |
| 1190n | Supply Current after turn on | VIAC = OV, VCOSC = 0, Pin17 = Open | | 8 | 12 | mA |
| 119 | Operating Supply Current | Pin20= 1nF | | 12 | 16 | mA |
| Vcc | Zener Voltage | (*) | 20 | 25 | 30 | v |
| UNDER VOLTAGE LOC KOUT SECTION |
| Vth ON | Turn on Threshold | | 14.5 | 15.5 | 16.5 | V |
| Vth OFF | Turn off Threshold | | 9 | 10 | 1 1 | V |
| | Programmable Turn-on Threshold | Pin 15 to Vcc = 220K Pin15 to GND = 33K | 10.6 | 12 | 13.4 | V |
| LOAD FEED FORWARD |
| ILFF | Bias Current | V6= 1.6V | | 70 | 140 | CA |
| V6= 5.3V | | 200 | 300 | CA |
| Vi | Input Voltage Range | | 1.6 | | 5.3 | V |
| | | | | | |