US3027
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
Drive2
1
Fix
2
VID4
3
VID3
4
VID2
5
VID1
6
VID0
7
PGood
8
SD
9
Vsen2
10
Select
11
SS
12
Fault / Rt
13
Vsen4
14
28
V12
27
UGate
26
Phase
25
LGate
24
PGnd
23
OCSet
22
Vsen1
21
Fb
20
V5
19
Vsen3
18
Drive3
17
Gnd
16
NC
15
Drive4
θ
JA
=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
0.6
V
UVLO Threshold-5V
Supply ramping up
4.4
V
UVLO Hysterises-5V
0.3
V
Supply Current
Operating Supply Current
V12
6
mA
V5
30
Switching Controllers; Vcore (Vsen 1) and AGP (Vsen 2)
VID Section (Vcore only)
DAC output voltage (note 1)
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
resistor to V5
27
kΩ
Vsen2 Voltage
Select<0.8V
1.5
V
Select>2V
3.3
V
4-2
Rev. 1.3
12/8/00
UNISEM [ UNISEM ]
