| BIAS |
| V(POR_rising) |
Supply voltage, POR rising threshold |
|
|
3.2 |
4 |
V |
| V(POR_falling) |
Supply voltage, POR falling threshold |
|
2.2 |
3 |
|
V |
| I(Shutdown) |
Device shutdown current |
EN = LOW |
|
5 |
10 |
µA |
| I(Quiescent) |
Device standby current |
PWM = HIGH, EN = HIGH |
0.1 |
0.2 |
0.25 |
mA |
| I(FAULT) |
Device current in fault mode |
EN = HIGH, PWM = HIGH, FAULT externally pulled LOW |
0.1 |
0.2 |
0.25 |
mA |
| LOGIC INPUTS (DIAGEN, PWM, EN) |
| VIL(DIAGEN) |
Input logic-low voltage, DIAGEN |
|
1.045 |
1.1 |
1.155 |
V |
| VIH(DIAGEN) |
Input logic-high voltage, DIAGEN |
|
1.14 |
1.2 |
1.26 |
V |
| VIL(PWM) |
Input logic-low voltage, PWM |
|
1.045 |
1.1 |
1.155 |
V |
| VIH(PWM) |
Input logic-high voltage, PWM |
|
1.14 |
1.2 |
1.26 |
V |
| VIL(EN) |
Input logic-low voltage, EN |
|
|
|
0.7 |
V |
| VIH(EN) |
Input logic-high voltage, EN |
|
2 |
|
|
V |
| IPD(EN) |
EN pin pulldown current |
V(EN) = 12 V |
1.5 |
3.3 |
4.5 |
µA |
| CONSTANT-CURRENT DRIVER |
| I(OUT) |
Device output-current range |
100% duty-cycle |
4 |
|
300 |
mA |
| V(CS_REG) |
Sense-resistor regulation voltage |
TA = 25°C, V(SUPPLY) = 4.5 V to 18 V |
94 |
98 |
102 |
mV |
| TA = –40°C to 125°C, V(SUPPLY) = 4.5 V to 18 V |
93.5 |
98 |
102.5 |
| R(CS_REG) |
Sense-resistor value |
|
|
|
24.5 |
Ω |
| V(DROPOUT) |
Voltage dropout from SUPPLY to OUT |
V(CS_REG) voltage included, current setting = 10 mA |
|
120 |
150 |
mV |
| V(CS_REG) voltage included, current setting = 70 mA |
|
250 |
400 |
| V(CS_REG) voltage included, current setting = 150 mA |
|
430 |
700 |
| V(CS_REG) voltage included, current setting = 300 mA |
|
800 |
1300 |
| DIAGNOSTICS |
| V(OPEN_th_rising) |
LED open rising threshold, V(IN) – V(OUT) |
|
70 |
100 |
135 |
mV |
| V(OPEN_th_falling) |
LED open falling threshold, V(IN) – V(OUT) |
|
235 |
290 |
335 |
mV |
| V(SG_th_falling) |
Channel output V(OUT) short to ground falling threshold |
|
1.14 |
1.2 |
1.26 |
V |
| V(SG_th_rising) |
Channel output V(OUT) short to ground rising threshold |
|
0.82 |
0.865 |
0.91 |
V |
| I(Retry) |
Channel output retry current |
V(OUT) = 0 V |
0.64 |
1.08 |
1.528 |
mA |
| FAULT |
| VIL(FAULT) |
Logic-input low threshold |
|
|
|
0.7 |
V |
| VIH(FAULT) |
Logic-input high threshold |
|
2 |
|
|
V |
| VOL(FAULT) |
Logic-output low threshold |
With 500-µA external pullup |
|
|
0.4 |
V |
| VOH(FAULT) |
Logic-output high threshold |
With 1-µA external pulldown, V(SUPPLY) = 12 V |
5 |
|
7 |
V |
| I(FAULT_pulldown) |
FAULT internal pulldown current |
|
500 |
750 |
1000 |
µA |
| I(FAULT_pullup) |
FAULT internal pullup current |
|
5 |
8 |
12 |
µA |
| THERMAL PROTECTION |
| T(TSD) |
Thermal shutdown junction temperature threshold |
|
|
172 |
|
°C |
| T(TSD_HYS) |
Thermal shutdown junction temperature hysteresis |
|
|
15 |
|
°C |