参数资料
型号: MAX1902EAI+
厂商: Maxim Integrated Products
文件页数: 5/33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: 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: 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: 管件
500kHz Multi-Output, Low-Noise Power-Supply
Controllers for Notebook Computers
ELECTRICAL CHARACTERISTICS
(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
CONDITIONS
MIN
TYP
MAX
UNITS
MAIN SMPS CONTROLLERS
Input Voltage Range
4.2
30.0
V
3V Output Voltage in Adjustable Mode
3V Output Voltage in Fixed Mode
5V Output Voltage in Adjustable Mode
5V Output Voltage in Fixed Mode
Output Voltage Adjust Range
Adjustable-Mode Threshold Voltage
Current-Limit Threshold
Oscillator Frequency
Maximum Duty Factor
SYNC Input Frequency Range
V+ = 4.2V to 30V, CSH3 - CSL3 = 0,
CSL3 tied to FB3
V+ = 4.2V to 30V, 0 < CSH3 - CSL3
< 80mV, FB3 = 0
V+ = 4.2V to 30V, CSH5 - CSL5 = 0,
CSL5 tied to FB5
V+ = 5.3V to 30V, 0 < CSH5 - CSL5
< 80mV, FB5 = 0
Either SMPS
Dual-mode comparator
CSH3 - CSL3 or CSH5 - CSL5
SKIP = V L or V DD < 13V or SECFB < 2.44V
SYNC = V L
SYNC = 0
SYNC = V L
SYNC = 0 (Note 2)
2.42
3.20
2.42
4.85
REF
0.5
80
-50
450
283
95
97
400
2.58
3.47
2.58
5.25
5.5
1.1
120
-150
550
383
583
V
V
V
V
V
V
mV
kHz
%
kHz
FLYBACK CONTROLLER
V DD Regulation Threshold
SECFB Regulation Threshold
V DD Shunt Threshold
V DD Shunt Sink Current
Falling edge (Note 3)
Falling edge (MAX1901/MAX1904)
Rising edge, hysteresis = 1% (Note 3)
V DD = 20V (Note 3)
13
2.44
18
10
14
2.60
20
V
V
V
mA
12V LINEAR REGULATOR (Note 3)
12OUT Output Voltage
Quiescent V DD Current
13V < V DD < 18V, 0mA < I LOAD < 100mA
V DD = 18V, run mode, no 12OUT load
11.65
12.50
100
V
μA
INTERNAL REGULATOR AND REFERENCE
V L Output Voltage
V L Undervoltage Lockout-Fault Threshold
V L Switchover Threshold
REF Output Voltage
REF Load Regulation
REF Sink Current
REF Fault Lockout Voltage
V+ Operating Supply Current
SHDN = V+, RUN/ON3 = TIME/ON5 = 0,
5.4V < V+ < 30V, 0 < I LOAD < 50mA
Falling edge, hysteresis = 1%
Rising edge of CSL5, hysteresis = 1%
No external load (Note 5)
0 < I LOAD < 50μA
0 < I LOAD < 5mA
Falling edge
V L switched over to CSL5, 5V SMPS on
4.7
3.5
4.2
2.45
10
1.8
5.1
3.7
4.7
2.55
12.5
100.0
2.4
50
V
V
V
V
mV
μA
V
μA
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