Electrical Characteristics: 0˚C < TA < 70˚C; 0˚C < TJ < 125˚C; 8V < VCC < 14V;
2.8V DAC Code (VID4=VID2=VID1=VID0=1, VID3= 0), CGATE(H) = CGATE(L) = 3.3nF, COFF = 330pF, CSS= 0.1µF; Unless otherwise stated.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ꢀ PWM Comparator: continued
Minimum Pulse Width
(Blanking Time)
Drive VFB 1.2 to 5V upon
50
150
250
ns
GATE(H) rising edge (> VCC -1V),
measure GATE(H ) pulse width
ꢀ COFF
Normal Off-Time
Extended Off-Time
VFB = 2.7V
VSS = VFB = 0V
1.0
5.0
1.6
8.0
2.3
12.0
µs
µs
ꢀ Time-Out Timer
Time-Out Time
VFB = 2.7V, Measure
GATE(H ) Pulse Width
10
30
30
50
50
70
µs
%
Fault Duty Cycle
VFB = 0V
ꢀ Enable Input
ENABLE Threshold
Shutdown delay (Note 1)
Pull-up Current
GATE(H) Switching
ENABLE-to-GATE(H) < 2V
ENABLE = 0V
0.8
1.15
3
7
1.30
V
µs
µA
V
3
1.30
15
3
Pull-up Voltage
No load on ENABLE pin
1.8
Input Resistance
ENABLE = 5V,
R = (5V-VPULLUP)/IENABLE
10
20
50
kΩ
ꢀꢀ Voltage Identification DAC
Accuracy (all codes except 11111) Measure VFB = COMP (COFF = 0V)
-1
+1
%
VID4 VID3 VID2 VID1 VID0
25˚C ≤ TJ ≤ 125˚C; VCC = 12V
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
0
0
1
1
0
3.505
3.406
3.307
3.208
3.109
3.010
2.911
2.812
2.713
2.614
2.515
2.416
2.317
2.218
2.119
2.069
2.020
1.970
1.921
1.871
1.822
1.772
1.723
1.673
1.624
3.540
3.440
3.340
3.240
3.140
3.040
2.940
2.840
2.740
2.640
2.540
2.440
2.340
2.240
2.140
2.090
2.040
1.990
1.940
1.890
1.840
1.790
1.740
1.690
1.640
3.575
3.474
3.373
3.272
3.171
3.070
2.969
2.868
2.767
2.666
2.565
2.464
2.363
2.262
2.161
2.111
2.060
2.010
1.959
1.909
1.858
1.808
1.757
1.707
1.656
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
1
0
1
0
1
0
1
0
0
0
1
1
0
0
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
0
1
0
1
0
1
0
1
0
1
4
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
