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參數(shù)資料
| 型號： | MAX1938EEI |
| 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 |
| 文件頁數(shù)： | 3/24頁 |
| 文件大?。?/td> | 586K |
| 代理商： | MAX1938EEI |
M
Two-Phase Desktop CPU Core Supply Controllers
with Controlled VID Change
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 12V, V
EN
= V
VDD
= 5V, PGND = GNDS = GND = 0, VID_ = GND, C
VPOS
= 47pF, C
REF
= 0.1μF, V
ILIM
= 1V,
T
A
= 0
°
C to
+85
°
C
, unless otherwise noted. Typical values are at T
A
= +25
°
C.)
PARAMETER
CONDITIONS
FAULT PROTECTION
V
DD
Undervoltage Lockout
(UVLO) Threshold
V
DD
UVLO Hysteresis
VLG UVLO Threshold
Rising or falling VLG
VLG UVLO Hysteresis
Thermal Shutdown
Rising temperature, typical hysteresis = 15
°
C
Rising edge
Reference UVLO Threshold
Falling edge
MAX1937/MAX1938
Output Overvoltage Fault
Threshold
MAX1939
MIN
TYP
MAX
UNITS
Rising or falling V
DD
4.00
4.25
4.45
V
80
4.25
40
160
1.600
1.584
2.00
2.250
mV
V
mV
°
C
4.00
1.97
2.215
4.45
2.03
2.285
V
Rising and falling
V
Output UVLO Threshold
Rising and falling percentage of the nominal
regulation voltage
65
70
75
%
CURRENT LIMIT
PGND to CS_, V
ILIM
= 1.5V
PGND to CS_, V
ILIM
= 1V
PGND to CS_, V
ILIM
= 0.5V
CS_ = GND
CS_ = GND
135
90
45
-3
-5
-3
72.5
150
100
50
75.0
165
110
55
+3
+5
+3
77.5
Current-Limit Threshold
mV
CS Input Offset Voltage
CS_ Input Bias Current
VOLTAGE POSITIONING
VPOS Input Offset Voltage
VPOS Gain
mV
μA
mV
%/V
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
VPOS Gain
68
75
82
%/V
TIMER AND DRIVERS
On-Time
Minimum Off-Time
LX1 = LX2 = CS1 = CS2 = GND, V
FB
= 1.5V
DH1 low to DH2 high, and DH2 low to DH1 high
420
260
525
325
60
60
85
70
630
390
ns
ns
MAX1937/MAX1938
MAX1939
MAX1937/MAX1938
MAX1939
DH_ low to DL_ high
Break-Before-Make Time
DL_ low to DH_ high
ns
相關PDF資料 |
PDF描述 |
|---|---|
| MAX1939 | Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change |
| MAX1939EEI | Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change |
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| MAX1951ESA | PLASTIC ENCAPSULATED DEVICES |
| MAX1952 | PLASTIC ENCAPSULATED DEVICES |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1938EEI-T | 功能描述:DC/DC 開關控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| MAX1938EEI-TG069 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX1938EVKIT | 功能描述:電源管理IC開發(fā)工具 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX1939EEI | 功能描述:DC/DC 開關控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| MAX1939EEI-T | 功能描述:DC/DC 開關控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
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