参数资料
| 型号： | MAX8741EAI+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/34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 |
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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 = 0°C to +85°C , unless otherwise noted. Typical
values are at T A = +25°C.)
PARAMETER
Maximum Duty Factor
CONDITIONS
SYNC = V L
SYNC = 0 (Note 2)
MIN
95
96.5
TYP
97
98
MAX
UNITS
%
SYNC Input High Pulse Width
SYNC Input Low Pulse Width
SYNC Rise/Fall Time
Not tested
Not tested
Not tested
200
200
200
ns
ns
ns
SYNC Input-Frequency Range
400
583
kHz
Current-Sense Input Leakage Current
V+ = V L = 0,
CSL3 = CSH3 = CSL5 = CSH5 = 5.5V
0.01
10
μA
FLYBACK CONTROLLER
V DD Regulation Threshold
SECFB Regulation Threshold
DL Pulse Width
V DD Shunt Threshold
Falling edge (MAX8742)
Falling edge (MAX8741)
V DD < 13V or SECFB < 2.44V
Rising edge, hysteresis = 1% (MAX8742)
13
2.44
18
0.75
14
2.60
20
V
V
μs
V
V DD Shunt Sink Current
V DD Leakage Current
V DD = 20V (MAX8742)
V DD = 5V, off mode (Note 3)
10
30
mA
μA
12V LINEAR REGULATOR (MAX8742)
12OUT Output Voltage
12OUT Current Limit
Quiescent V DD Current
13V < V DD < 18V, 0 < I LOAD < 120mA
12OUT forced to 11V, V DD = 13V
V DD = 18V, run mode, no 12OUT load
11.65
12.10
150
50
12.50
100
V
mA
μA
INTERNAL REGULATOR AND REFERENCE
V L Output Voltage
SHDN = V+, RUN/ON3 = TIME/ON5 = 0,
5.4V < V+ < 30V, 0mA < I LOAD < 50mA
4.7
5.1
V
V L Undervoltage-Lockout Fault Threshold
V L Switchover Threshold
REF Output Voltage
REF Load Regulation
Falling edge, hysteresis = 1%
Rising edge of CSL5, hysteresis = 1%
No external load (Note 4)
0 < I LOAD < 50μA
0 < I LOAD < 5mA
3.5
4.2
2.45
3.6
4.5
2.5
3.7
4.7
2.55
12.5
100.0
V
V
V
mV
REF Sink Current
10
μA
REF Fault-Lockout Voltage
V+ Operating Supply Current
V+ Standby Supply Current
V+ Standby Supply Current in Dropout
V+ Shutdown Supply Current
Falling edge
V L switched over to CSL5, 5V SMPS on
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
1.8
5
30
50
4
2.4
50
60
200
10
V
μA
μA
μA
μA
Quiescent Power Consumption
Both SMPSs enabled,
FB3 = FB5 = 0,
CSL3 = CSH3 = 3.5V,
CSL5 = CSH5 = 5.3V
MAX8742
MAX8741
2.5
1.5
4
4
mW
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3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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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