VDD and VGG SUPPLY |
VGG(OPERATING) |
VGG voltage, operating |
VDD = 14 V, IVGG = 2.0 mA |
13 |
14 |
15 |
V |
VGG(DISABLED) |
VGG voltage, PWM disabled |
VDD = 12 V, IVGG = 15 μA, IFB = 350 μA |
15 |
16 |
17 |
V |
ΔVGG |
Rise in VGG clamping voltage during UVLO, GM, or Fault |
VGG(DISABLED) – VGG(OPERATING) |
1.75 |
2.00 |
2.15 |
V |
IVGG(SREG) |
VGG shunt regulator current |
VGG = VGG(DISABLED) -100 mV, VDD = 12 V |
|
6 |
10 |
μA |
ΔVGG(SREG) |
VGG shunt load regulation |
10 μA ≤ IVGG ≤ 5 mA, IFB = 350 μA |
|
125 |
200 |
mV |
VGG(LREG) |
VGG LDO regulation voltage |
VDD = 20 V, IVGG = – 2 mA |
|
13 |
|
V |
VGG(LREG, DO) |
VGG LDO Dropout Voltage |
VDD – VGG, VDD = 11 V, IVGG = – 2 mA |
1.5 |
2 |
2.5 |
V |
VDD(ON) |
UVLO turn-on threshold |
|
9.7 |
10.2 |
10.7 |
V |
VDD(OFF) |
UVLO turn-off threshold |
|
7.55 |
8 |
8.5 |
V |
ΔVDD(UVLO) |
UVLO hysteresis |
|
1.9 |
2.2 |
2.5 |
V |
IVDD(OPERATING) |
Operating current |
VDD = 20 V |
2.5 |
3 |
3.7 |
mA |
IVDD(GM) |
Idle current between bursts |
IFB = 350 μA |
|
550 |
900 |
μA |
IVDD(UVLO) |
Current for VDD < UVLO |
VDD = VDD(ON) – 100 mV, increasing |
|
225 |
310 |
μA |
RDS,ON(VDD) |
VDD Switch on resistance, DRV to VDD |
VGG = 12 V, VDD = 7V, IDRV = 50 mA |
|
4 |
10 |
Ω |
VDD(FAULT RESET) |
VDD for fault latch reset |
|
5.6 |
6 |
6.4 |
V |
MODULATION |
tS(HF) (1) |
Minimum switching period, frequency modulation (FM) mode |
IFB = 0 μA, (1) |
7.125 |
7.5 |
7.875 |
μs |
tS(LF) (1) |
Maximum switching period, reached at end of FM modulation range |
IFB = IFB, CNR3 – 20 μA, (1) |
31 |
34 |
38 |
μs |
IDRVpk(max) |
Maximum peak driver current over amplitude modulation(AM) range |
IFB = 0 μA, RCL = 33. 2 kΩ |
2.85 |
3 |
3.15 |
A |
IFB = 0 μA, RCL = 100 kΩ |
0.80 |
0.90 |
1.0 |
IDRVpk(min) |
Minimum peak driver current reached at end of AM modulation range |
IFB, CNR2 + 10 μA, RCL = 33.2 kΩ |
0.7 |
0.85 |
1.1 |
A |
IFB, CNR2 + 10 μA, RCL = 100 kΩ |
0.2 |
0.33 |
0.5 |
KP |
Maximum power constant |
IDRVpk(max) = 3 A |
0.54 |
0.60 |
0.66 |
W/μH |
IDRVpk(absmin) |
Minimum peak driver independent of RCL or AM control |
RCL = OPEN |
0.3 |
0.45 |
0.6 |
A |
tBLANK(Ilim) |
Leading edge current limit blanking time |
IFB = 0 μA, RCL = 100 kΩ, 1.2-A pull-up on DRV |
120 |
220 |
450 |
ns |
VCL |
Voltage of CL pin |
IFB = 0 μA |
2.94 |
3 |
3.06 |
V |
IFB = (IFB,CNR3 – 20 μA) (1) |
0.95 |
1.00 |
1.10 |
IFB,CNR1 (4) |
IFB range for FM modulation |
IFB increasing, tS = tS(LF), IDRVpk = IDRVpk(max) |
145 |
165 |
195 |
μA |
IFB,CNR2 – IFB,CNR1 (4) |
IFB range for AM modulation |
tS = tS(LF), IDRVpk ranges from IDRVpk(max) to IDRVpk(min) |
35 |
45 |
65 |
μA |
IFB,CNR3 – IFB,CNR2 (4) |
IFB range for Green Mode (GM) modulation |
IFB increasing until PWM action is disabled entering a burst-off state |
45 |
70 |
90 |
μA |
IFB, GM-HYST (4) |
IFB hysteresis during GM modulation to enter burst on and off states |
IFB decreasing from above IFB,CNR3 |
10 |
25 |
40 |
μA |
VFB |
Voltage of FB pin |
IFB = 10 μA |
0.34 |
0.7 |
0.84 |
V |
ZERO CROSSING DETECTION |
ZCD(TH) |
ZCD zero crossing threshold |
ZCD high to low generates switching period (tS has expired) |
5 |
20 |
50 |
mV |
ZCD(CLAMP) |
ZCD low clamp voltage |
IZCD = –10 μA |
-220 |
-160 |
-100 |
mV |
ZCD(START) |
ZCD voltage threshold to enable the internal start timer |
Driver switching periods generated at start timer rate |
0.1 |
0.15 |
0.2 |
V |
tDLY(ZCD) |
Delay from zero crossing to Driver turn-on |
150-Ω pull-up to 12-V on DRV |
|
150 |
|
ns |
tWAIT(ZCD) |
Wait time for zero crossing detection |
Driver turn-on edge generated following tS with previous zero crossing detected |
2 |
2.4 |
2.8 |
μs |
tST |
Starter time-out period |
ZCD = 0 V |
150 |
240 |
300 |
DRIVER |
RDS(on)(DRV) |
Driver on-resistance |
IDRV = 4.0 A |
|
90 |
190 |
mΩ |
IDRV(OFF) |
Driver off-leakage current |
DRV = 12 V |
|
1.5 |
20 |
μA |
RDS(on)(HSDRV) |
High-side driver on-resistance |
IDRV = –50 mA |
|
6 |
11 |
Ω |
IDRV(DSCH) |
DRV bulk discharge current |
VDD open, DRV= 12 V, Fault latch set |
2 |
2.8 |
3.6 |
mA |
OVERVOLTAGE FAULT |
ZCD(OVP) |
Overvoltage fault threshold at ZCD |
Fault latch set |
4.85 |
5 |
5.15 |
V |
tBLANK(OVP) |
ZCD blanking and OVP sample time from the turn-off edge of DRV |
|
0.6 |
1 |
1.7 |
μs |
IZCD(bias) |
ZCD Input bias current |
ZCD = 5 V |
-0.1 |
-0.05 |
0.1 |
μA |
OVERLOAD FAULT |
IFB(OL) |
Current to trigger overload delay timer |
|
0 |
1.5 |
3 |
μA |
tOL |
Delay to overload fault |
IFB = 0 A continuously |
200 |
250 |
325 |
ms |
tRETRY |
Retry delay in retry mode or after shutdown command |
RMOT = 76 kΩ |
|
750 |
|
ms |
RMOT(TH) |
Boundary RMOT between latch-off and retry modes |
See (2) |
100 |
120 |
150 |
kΩ |
SHUTDOWN THRESHOLD |
MOT(SR) |
Shutdown-Retry threshold |
MOT high to low |
0.7 |
1 |
1.3 |
V |
IMOT |
MOT current when MOT is pulled low |
MOT = 1 V |
–600 |
–450 |
–300 |
μA |
MAXIMUM ON TIME |
tMOT |
Latch-OFF |
RMOT = 383 kΩ |
3.43 |
3.83 |
4.23 |
μs |
Shutdown-retry |
RMOT = 76 kΩ |
3.4 |
3.8 |
4.2 |
MOT |
MOT voltage |
|
2.7 |
3 |
3.3 |
V |
THERMAL SHUTDOWN |
TSD (3) |
Shutdown temperature |
TJ, temperature rising (3) |
|
165 |
|
°C |
TSD_HYS (3) |
Hysteresis |
TJ, temperature falling, degrees below TSD (3) |
|
15 |
|
°C |