US3036 Ver la hoja de datos (PDF) - Unisem
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US3036 Datasheet PDF : 7 Pages
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US3036
ABSOLUTE MAXIMUM RATINGS
VCC Supply Voltage ............................................................. 20V
F.B Pin Voltage........................................................ -0.3V to 5V
Storage Temperature Range ................................. -65 TO 150°C
Operating Junction Temperature ............................... 0 TO 150°C
PACKAGE INFORMATION
8 PIN PLASTIC SOIC (S)
TOP VIEW
Drv 1
8 SS
Vcc 2
7 CS+
Vfb 3
6 CS-
NC 4
5 Gnd
θJA =160°C/W
ELECTRICAL SPECIFICATIONS
Unless otherwise specified the following specification applies over VCC =5V, and TA =0 to 70°C. Low duty cycle
pulse testing are used which keeps junction and case temperatures equal to the ambient temperature.
PARAMETER
F.B Voltage Initial Accuracy
F.B Voltage Total Variation
F.B Voltage Line Regulation
F.B Input Bias Current
Min On Time
Min Off Time
Supply Current
Maximum Duty Cycle
Minimum Duty Cycle
Gate Drive Rise/Fall Time
C.L Threshold Current
C.S Comp Common Mode
Soft Start Current
UVLO Threshold
SYM TEST CONDITION
VFB TJ =25°C
IFB
ICCSW
DMAX
DMIN
VGATE
ICL
VFB =1.25V
VFB is sq wave with 300 ns on
time and 2 uS off time
VFB is sq wave with 300 ns off
time and 2 uS on time
VFB =1.5V
VFB =1.5V
VFB =1V
Load=1000pF
C.S+ , C.S- from 1.3V to 3.7V
VCS+ = VCS-
VUVLO
MIN
1.237
1.225
-1
TYP
1.250
1.250
0.2
800
MAX
1.262
1.275
+1
UNITS
V
V
%
uA
nS
800
nS
10
mA
100
%
0
%
70
nS
20
uA
0
4.5
V
10
uA
4.25 4.4 4.55
V
4-2
Rev. 1.1
12/4/98
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