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参数资料
| 型号： | MAX1904 |
| 厂商： | Maxim Integrated Products, Inc. |
| 英文描述： | 500kHz Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers |
| 中文描述： | 500kHz、多路输出、低噪声、电源控制器，用于笔记本电脑 |
| 文件页数： | 2/33页 |
| 文件大小： | 649K |
| 代理商： | MAX1904 |
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M
500kHz Multi-Output, Low-Noise Power-Supply
Controllers for Notebook Computers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
V+ to GND..............................................................-0.3V to +36V
PGND to GND.....................................................................±0.3V
V
L
to GND ................................................................-0.3V to +6V
BST3, BST5 to GND ..............................................-0.3V to +36V
CSH3, CSH5 to GND................................................-0.3V to +6V
FB3 to GND..............................................-0.3V to (CSL3 + 0.3V)
FB5 to GND...............................................-0.3V to (CSL5 +0.3V)
LX3 to BST3..............................................................-6V to +0.3V
LX5 to BST5..............................................................-6V to +0.3V
REF, SYNC, SEQ, STEER,
SKIP
,
TIME/ON5, SECFB,
RESET
to GND ........-0.3V to (V
L
+ 0.3V)
V
DD
to GND............................................................-0.3V to +20V
RUN/ON3,
SHDN
to GND.............................-0.3V to (V+ + 0.3V)
12OUT to GND ..........................................-0.3V to (V
DD
+ 0.3V)
DL3, DL5 to PGND........................................-0.3V to (V
L
+ 0.3V)
ELECTRICAL CHARACTERISTICS
(V+ = 15V, both PWMs on, SYNC = V
L
, V
L
load = 0, REF load = 0,
SKIP
= 0,
T
A
= 0
°
C to +85
°
C
, unless otherwise noted. Typical
values are at T
A
= +25
°
C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DH3 to LX3 ..............................................-0.3V to (BST3 + 0.3V)
DH5 to LX5 ..............................................-0.3V to (BST5 + 0.3V)
V
L
, REF Short to GND ................................................Momentary
12OUT Short to GND..................................................Continuous
REF Current...........................................................+5mA to -1mA
V
L
Current.........................................................................+50mA
12OUT Current . .............................................................+200mA
V
DD
Shunt Current............................................................+15mA
Continuous Power Dissipation (T
A
= +70
°
C)
28-Pin SSOP (derate 9.52mW/
°
C above +70
°
C) ......762mW
32-Pin Thin QFN (derate 21.3mW/
°
C above +70
°
C) ..1702mW
Operating Temperature Range ...........................-40
°
C to +85
°
C
Storage Temperature Range ............................-65
°
C to +160
°
C
Lead Temperature (soldering, 10s) ................................+300
°
C
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
MAIN SMPS CONTROLLERS
Input Voltage Range
4.2
30.0
V
3V Output Voltage in Adjustable Mode
V+ = 4.2V to 30V, CSH3 - CSL3 = 0,
CSL3 tied to FB3
2.42
2.5
2.58
V
3V Output Voltage in Fixed Mode
V+ = 4.2V to 30V, 0 < CSH3 - CSL3
< 80mV, FB3 = 0
3.20
3.39
3.47
V
5V Output Voltage in Adjustable Mode
V+ = 4.2V to 30V, CSH5 - CSL5 = 0,
CSL5 tied to FB5
2.42
2.5
2.58
V
5V Output Voltage in Fixed Mode
V+ = 5.3V to 30V, 0 < CSH5 - CSL5
< 80mV, FB5 = 0
4.85
5.13
5.25
V
Output Voltage Adjust Range
Adjustable-Mode Threshold Voltage
Load Regulation
Line Regulation
Either SMPS
Dual-mode comparator
Either SMPS, 0 < CSH_ - CSL_ < 80mV
Either SMPS, 5.2V < V+ < 30V
CSH3 - CSL3 or CSH5 - CSL5
SKIP
= V
L
or V
DD
< 13V or SECFB < 2.44V
SKIP
= 0, not tested
REF
0.5
5.5
1.1
V
V
%
-2
0.03
100
-100
25
%/V
80
-50
10
120
-150
40
Current-Limit Threshold
mV
Idle Mode Threshold
mV
Soft-Start Ramp Time
From enable to 95% full current limit with
respect to f
OSC
(Note 1)
SYNC = V
L
SYNC = 0
512
clks
450
283
500
333
550
383
Oscillator Frequency
kHz
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1904BEAI | 制造商:Maxim Integrated Products 功能描述: |
| MAX1904BEAI+ | 功能描述:DC/DC 开关控制器 500kHz Multi-Output Power-Supply Ctlr RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1904BEAI+T | 功能描述:DC/DC 开关控制器 500kHz Multi-Output Power-Supply Ctlr RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1904EAI | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX1904EAI+ | 功能描述:DC/DC 开关控制器 500kHz Multi-Output Power-Supply Ctlr RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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