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| 型号： | MAX1904EAI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/33页 |
| 文件大小： | 0K |
| 描述： | IC CNTRLR PWR SPLY LN 28-SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,000 |
| 应用： | 控制器，笔记本电脑电源系统 |
| 输入电压： | 4.2 V ~ 30 V |
| 输出数： | 4 |
| 输出电压： | 2.5 V ~ 5 V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 带卷 (TR) |
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500kHz Multi-Output, Low-Noise Power-Supply
Controllers for Notebook Computers
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 15V, both PWMs on, SYNC = V L , V L load = 0, REF load = 0, SKIP = 0, T A = -40 ° C to +85 ° C , unless otherwise noted.) (Note 7)
PARAMETER
V+ Standby Supply Current
V+ Standby Supply Current in Dropout
V+ Shutdown Supply Current
CONDITIONS
V+ = 5.5V to 30V, both SMPSs off, includes
current into SHDN
V+ = 4.2V to 5.5V, both SMPSs off, includes
current into SHDN
V+ = 4.0V to 30V, SHDN = 0
MIN
TYP
MAX
60
200
10
UNITS
μA
μA
μA
Both SMPSs enabled,
(Note 3)
4
Quiescent Power Consumption
FB3 = FB5 = 0,
CSL3 = CSH3 = 3.5V,
mW
FAULT DETECTION (MAX1901/MAX1902)
CSL5 = CSH5 = 5.3V
MAX1901/MAX1904
4
Overvoltage Trip Threshold
Output Undervoltage Threshold
Output Undervoltage Lockout Time
With respect to unloaded output voltage
With respect to unloaded output voltage
From each SMPS enabled, with respect to
f OSC
4
60
5,000
10
80
7,000
%
%
clks
RESET
RESET Trip Threshold
RESET Delay Time
With respect to unloaded output voltage,
falling edge; typical hysteresis = 1%
With respect to f OSC
-7
27,000
-4
37,000
%
clks
INPUTS AND OUTPUTS
Feedback-Input Leakage Current
Logic Input-Low Voltage
Logic Input-High Voltage
Logic Output-Low Voltage
Logic Output-High Current
FB3, FB5; SECFB = 2.6V
RUN/ON3, SKIP , TIME/ON5 (SEQ = REF),
SHDN , STEER, SYNC
RUN/ON3, SKIP , TIME/ON5 (SEQ = REF),
SHDN , STEER, SYNC
RESET , I SINK = 4mA
RESET = 3.5V
2.4
1
50
0.6
0.4
nA
V
V
V
mA
TIME/ON5 Input Trip Level
TIME/ON5 Source Current
TIME/ON5 On-Resistance
SEQ = 0 or V L
TIME/ON5 = 0, SEQ = 0 or V L
TIME/ON5; RUN/ON3 = 0, SEQ = 0 or V L
2.4
2.5
2.6
3.5
80
V
μA
?
Gate-Driver On-Resistance
High or low (Note 6)
SSOP package 7
QFN package 8
?
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Each of the four digital soft-start levels is tested for functionality; the steps are typically in 20mV increments.
High duty-factor operation supports low input-to-output differential voltages, and is achieved at a lowered operating frequency
(see the Dropout Operation section).
MAX1902 only.
Off mode for the 12V linear regulator occurs when the SMPS that has flyback feedback (V DD ) steered to it is disabled. In situa-
tions where the main outputs are being held up by external keep-alive supplies, turning off the 12OUT regulator prevents a leak-
age path from the output-referred flyback winding, through the rectifier, and into V DD .
Since the reference uses V L as its supply, the reference ’ s V+ line-regulation error is insignificant.
Production testing limitations due to package handing require relaxed maximum on-resistance specifications for the thin
QFN package. The SSOP and thin QFN package contain the same die, and the thin QFN package imposes no additional
resistance incircuit.
Specifications from to 0 ° C to -40 ° C are guaranteed by design, not production tested.
6
_______________________________________________________________________________________
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相关代理商/技术参数 |
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| MAX1904EAI-TG074 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX1904ETJ | 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 |
| MAX1904ETJ+ | 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 |
| MAX1904ETJ+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 |
| MAX1904ETJ-T | 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 |
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