參數(shù)資料
型號(hào)： MAX1939EEI
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change
中文描述： SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO28
封裝： 0.150 INCH, 0.025 INCH PITCH, MO-137, QSOP-28
文件頁(yè)數(shù)： 6/24頁(yè)
文件大?。?/td> 586K
代理商： MAX1939EEI
M
Two-Phase Desktop CPU Core Supply Controllers
with Controlled VID Change
6
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
VCC
= 12V, V
EN
= V
VDD
= 5V, PGND = GNDS = GND, VID_= GND, C
VPOS
= 47pF, C
REF
= 0.1μF, V
ILIM
= 1V,
T
A
= -40
°
C to +85
°
C
,
unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
CS Input Offset Voltage
CS_ = GND
CS_ Input Bias Current
CS_ = GND
VOLTAGE POSITIONING
VPOS Input Offset Voltage
VPOS Gain
From CS_ to FB; V
CS1
, V
CS2
= 0, -100mV; R
VPOS
= 75k
From CS1, CS2 to FB; V
CS1
, V
CS2
= +13mV, -113mV;
R
VPOS
= 75k
TIMER AND DRIVERS
On-Time
LX1 = LX2 = CS1 = CS2 = GND, V
FB
= 1.5V
Minimum Off-Time
DH1 low to DH2 high, and DH2 low to DH1 high
DH_ On-Resistance in Low State
V
BST1
= V
BST2
= 6V, LX1 = LX2 = GND
DH_ On-Resistance in High State
V
BST_
= 6V, LX_ = GND
DL_ On-Resistance in Low State
DL_ On-Resistance in High State
BST_ Leakage Current
V
BST_
= 30V, V
LX_
= 24V
LX_ Leakage Current
V
BST_
= 30V, V
LX_
= 24V
EN AND VID_
Low Level Threshold
High Level Threshold
Pullup Resistance
Internally pulled up to V
DD
PWRGD
PWRGD Upper Trip Level
PWRGD Lower Trip Level
Output Low Level
Output High Leakage
CONTROLLED VID CHANGE
R
TIME
= 120k
R
TIME
= 47k
Rate
R
TIME
= 470k
VID_ Change Frequency Range
PWRGD Blanking Time
V
VDD
= 4.5V to 5.5V
MIN
-5
-5
TYP
MAX
+5
+5
+5
77.5
UNITS
mV
μA
mV
%/V
-5
72.5
VPOS Gain
68
82
%/V
420
260
1.6
50
10
-15
6.17
2.35
23.5
38
125
630
390
3
3
1.7
3
50
50
0.8
200
15
-10
0.4
1
7.25
2.99
29.9
380
350
ns
ns
μA
μA
V
V
k
%
%
V
μA
On-the-Fly VID Change Slew
25mV per step
μs
kHz
μs
Note 1:
Specifications to -40
°
C are guaranteed by design and not production tested.
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