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參數(shù)資料
| 型號： | MAX1561ETA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 顯示驅(qū)動器 |
| 英文描述： | High-Efficiency, 26V Step-Up Converters for Two to Six White LEDs |
| 中文描述： | LED DISPLAY DRIVER, DSO8 |
| 封裝： | 3 X 3 MM, 0.80 MM PITCH, DFN-8 |
| 文件頁數(shù)： | 3/10頁 |
| 文件大?。?/td> | 245K |
| 代理商： | MAX1561ETA |
M
High-Efficiency, 26V Step-Up Converters
for Two to Six White LEDs
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= 3V, V
OUT
= 20V, C
OUT
= 0.1μF, C
COMP
= 0.15μF, R
SENSE
= 7.5
, V
CTRL
= 1.5V, Figure 1,
T
A
= 0
°
C to +85
°
C
, unless other-
wise noted. Typical values are at T
A
= +25
°
C.)
Note 1:
V
D1
is the diode forward-voltage drop of diode D1 in Figure 1.
Note 2:
Time from CTRL going below the dual-mode threshold to IC shutdown.
Note 3:
Specifications to -40
°
C are guaranteed by design and not production tested.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
N-CHANNEL SWITCH
LX On-Resistance
I
LX
= 190mA
1.45
0.01
1
700
2.25
5
T
A
= +25
°
C
T
A
= +85
°
C
LX Leakage Current
V
LX
= 28V, CTRL = GND
μA
LX Current Limit
Duty cycle = 90%
450
950
mA
ELECTRICAL CHARACTERISTICS
(V
IN
= 3V, V
OUT
= 20V, C
OUT
= 0.1μF, C
COMP
= 0.15μF, R
SENSE
= 7.5
, V
CTRL
= 1.5V, Figure 1,
T
A
= -40
°
C to +85
°
C
, unless other-
wise noted.) (Note 3)
PARAMETER
CONDITIONS
MIN
2.6
2.10
TYP
MAX
5.5
2.55
0.55
29
30
1
25.5
UNITS
V
V
mA
V
Supply Voltage
UVLO Threshold
Quiescent Current
OVLO Threshold
V
IN
rising or falling
No switching
V
OUT
rising
V
OUT
= 26V, V
CTRL
> 0.24V
V
OUT
= V
IN
, CTRL = GND
(Note 1)
26
10
OUT Input Bias Current
μA
Output Voltage Range
ERROR AMPLIFIER
CTRL to CS Regulation
CTRL Input Resistance
CTRL Dual-Mode Threshold
(V
IN
- V
D1
)
V
V
CTRL
= 1V, V
IN
= 2.6V to 5.5V
V
CTRL
≤
1.0V
0.093
240
100
6
13
32
0.107
780
240
11
22
85
V
k
mV
MAX1561
MAX1599
CTRL Shutdown Enable Delay
(Note 2)
ms
CS-to-COMP Transconductance
OSCILLATOR
V
COMP
= 1.0V
μS
MAX1561
MAX1599
CTRL = IN, CS = GND
0.75
0.37
91
1.25
0.63
Operating Frequency
MHz
Maximum Duty Cycle
N-CHANNEL SWITCH
LX On-Resistance
LX Current Limit
%
2.25
950
mA
Duty cycle = 90%
450
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