参数资料
| 型号： | MAX8741EAI+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/34页 |
| 文件大小： | 0K |
| 描述： | IC CNTRLR PWR SUP 28-SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 46 |
| 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： | 2 |
| 输出电压： | 3.3V，5V，2.5 V ~ 5.5 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： | 管件 |
第1页第2页第3页第4页第5页当前第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页
500kHz Multi-Output Power-Supply Controllers
with High Impedance in Shutdown
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 6)
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,
MAX8742
4
Quiescent Power Consumption
FB3 = FB5 = 0,
CSL3 = CSH3 = 3.5V,
mW
FAULT DETECTION
CSL5 = CSH5 = 5.3V
MAX8741
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
3300
10
80
4700
%
%
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
Ω
Gate-Driver On-Resistance
High or low (Note 5)
SSOP package
QFN package
7
8
Ω
Note 1: Each of the four digital soft-start levels is tested for functionality; the steps are typically in 20mV increments.
Note 2: High duty-factor operation supports low input-to-output differential voltages, and is achieved at a lowered operating frequency
(see the Dropout Operation section).
Note 3: Off mode for the MAX8742 12V linear regulator occurs when the SMPS that has flyback feedback (V DD ) steered to it is disabled.
In situations where the main outputs are being held up by external keep-alive supplies, turning off the 12OUT regulator prevents
a leakage path from the output-referred flyback winding, through the rectifier, and into V DD .
Note 4: Since the reference uses V L as its supply, the reference’s V+ line-regulation error is insignificant.
Note 5: Production testing limitations due to package handling require relaxed maximum on-resistance specifications for the thin
QFN package. The SSOP and thin QFN packages contain the same die, and the thin QFN package imposes no additional
resistance in circuit.
Note 6: Specifications from 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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|---|---|
| MAX8741EAI+ | 功能描述:电流和电力监控器、调节器 500kHz Multi-Out Pwr Supply Controller RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| MAX8741EAI+T | 功能描述:电流和电力监控器、调节器 500kHz Multi-Out Pwr Supply Controller RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| MAX8741EAI-T | 功能描述:电流和电力监控器、调节器 RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| MAX8742EAI | 功能描述:电流和电力监控器、调节器 RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| MAX8742EAI+ | 功能描述:电流和电力监控器、调节器 500kHz Multi-Out Pwr Supply Controller RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
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