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參數(shù)資料
| 型號： | MAX1552 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Complete Power IC for Low-Cost PDAs |
| 中文描述： | 完備的電源芯片，用于低成本PDA |
| 文件頁數(shù)： | 3/12頁 |
| 文件大小： | 324K |
| 代理商： | MAX1552 |
M
Complete Power IC for
Low-Cost PDAs
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= V
SWIN
= V
ENSD
= V
ENC2
= V
ENLCD
= 4.0V,
T
A
= 0
°
C to +85
°
C
, unless otherwise noted. Typical values are at T
A
= +25
°
C.)
PARAMETER
LCD
LX Voltage Range
LX Current Limit
L1 = 10μH
LX On-Resistance
LX Leakage Current
V
LX
= 28V
Maximum LX On-Time
V
LFB
> 1.1V
Minimum LX Off-Time
V
LFB
< 0.8V (soft-start)
LFB Feedback Threshold
LFB Input Bias Current
V
LFB
= 1.3V
SW Off-Leakage Current
SW = GND, V
SWIN
= 5.5V, ENLCD = GND
SW PMOS On-Resistance
SW PMOS Peak Current Limit
SW PMOS Average Current Limit
Soft-Start Time
C
SW
= 1μF
LOGIC IN AND OUT
EN_ Input Low Level
V
IN
= 3.0V to 5.5V
EN_ Input High Level
V
IN
= 3.0V to 5.5V
EN_ Input Leakage Current
RS
,
LBO
Output Low Level
Sinking 1mA, V
IN
= 2.5V
RS
,
LBO
Output High Leakage
V
OUT
= 5.5V
THERMAL PROTECTION
Thermal-Shutdown Temperature
Rising temperature
Thermal-Shutdown Hysteresis
CONDITIONS
MIN
TYP
MAX
UNITS
28
275
2
14
1.2
6.0
1.27
100
1
V
210
8
0.8
4.0
1.23
250
1.7
11
1
5
1.25
5
0.01
1
750
300
0.13
mA
μA
μs
μs
V
nA
μA
mA
mA
ms
0.4
1
0.4
1
V
V
μA
V
μA
1.4
0.01
0.25
160
15
°
C
°
C
ELECTRICAL CHARACTERISTICS
(V
IN
= V
SWIN
= V
ENSD
= V
ENC2
= V
ENLCD
= 4.0V,
T
A
= -40
°
C to +85
°
C
, unless otherwise noted.) (Note 1)
PARAMETER
GENERAL
IN, SWIN Voltage Range
Operating
RS
and Complete Shutdown Threshold
V
IN
falling
RS
Release and Restart Threshold
V
IN
rising
LBO
and Sleep Threshold
V
IN
falling
LBO
Release and Restart to Full On
V
IN
rising
IN, SWIN Operating Current
—
All On
V
LFB
= 1.3V
IN Operating Current
—
All On Except LCD
ENLCD = GND
ENLCD = ENC2 = ENSD = GND,
LDO loads = 0μA
IN, SWIN Operating Current
—
Shut Down
V
SWIN
= V
IN
= 2.925V
CONDITIONS
MIN
MAX
UNITS
3.1
2.96
3.36
3.525
3.725
5.5
3.04
3.44
3.675
3.875
125
110
V
V
V
V
V
μA
μA
IN Operating Current
—
MAIN and COR1 On
65
μA
10
μA
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