US3022
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
28 PIN WIDE BODY PLASTIC SOIC (W)
TOP VIEW
1
2
28
27
26
25
24
23
22
21
20
19
18
17
16
15
Drive2
Vsen5
Vref
V12
UGate
Phase
LGate
PGnd
OCSet
Vsen1
Fb
3
4
VID3
5
VID2
6
VID1
7
VID0
8
PGood
Vsen2
Drive5
Select
SS
9
V5
10
11
12
13
14
Vsen3
Drive3
Gnd
Fault / Rt
Vsen4
Vaux
Drive4
qJA =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
UVLO Hysterises-12V
UVLO Threshold-5V
UVLO Hysterises-5V
Supply Current
Supply ramping up
10
V
V
V
V
0.6
4.4
0.3
Supply ramping up
Operating Supply Current
V12
V5
6
30
mA
Switching Controllers; Vcore (Vsen 1) and AGP (Vsen 2)
VID Section (Vcore only)
DAC output voltage (note 1)
DAC Output Line Regulation
DAC Output Temp Variation
VID Input LO
0.99Vs Vs
1.01Vs
0.8
V
0.1
0.5
%
%
V
VID Input HI
2
V
VID input internal pull-up
resistor to V5
Vsen2 Voltage
27
1.5
3.3
kW
V
V
Select<0.8V
Select>2V
Rev. 1.0
11/2/99
4-2
UNISEM [ UNISEM ]
