US3018 查看數據表（PDF） - Unisem
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US3018 Datasheet PDF : 17 Pages
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US3018
ABSOLUTE MAXIMUM RATINGS
V5 supply Voltage ........................................... 7V
V12 Supply Voltage ............................................ 20V
Storage Temperature Range ................................. -65 TO 150°C
Operating Junction Temperature Range .......... 0 TO 125°C
PACKAGE INFORMATION
24 PIN WIDE BODY PLASTIC SOIC (W)
V12 1
VID4 2
VID3 3
VID2 4
VID1 5
VID0 6
PGood 7
V5 8
SS 9
Fault / Rt 10
Fb2 11
Vin2 12
TOP VIEW
24 UGate1
23 Phase1
22 LGate1
21 PGnd
20 OCSet1
19 Vsen1
18 Fb1
17 En
16 Fb3
15 Gate3
14 Gnd
13 Vout2
θJA =80°C/W
ELECTRICAL SPECIFICATIONS
Unless otherwise specified ,these specifications apply over ,V12 = 12V, V5 = 5V and Ta=0 to 70°C. Typical values
refer to Ta =25°C. Low duty cycle pulse testing are used which keeps junction and case temperatures equal to the
ambient temperature.
PARAMETER
SYM TEST CONDITION
MIN TYP MAX UNITS
Supply UVLO Section
UVLO Threshold-12V
Supply ramping up
10
V
UVLO Hysterises-12V
0.4
V
UVLO Threshold-5V
Supply ramping up
4.3
V
UVLO Hysterises-5V
0.3
V
Supply Current
Operating Supply Current
I12
V12
6
mA
I5
V5
20
Switching Controller, Vcore (Vout 1)
VID Section
DAC output voltage (note 1) Vdac
0.99Vs Vs
1.01Vs V
DAC Output Line Regulation
0.1
%
DAC Output Temp Variation
0.5
%
VID Input LO
0.8
V
VID Input HI
2
V
VID input internal pull-up
27
kΩ
resistor to V5
4-2
Rev. 1.4
12/8/00
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