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參數資料
| 型號： | MAX1848EKA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | White LED Step-Up Converter in SOT23 |
| 中文描述： | 0.85 A SWITCHING REGULATOR, 1600 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | SOT-23, 8 PIN |
| 文件頁數： | 3/9頁 |
| 文件大?。?/td> | 323K |
| 代理商： | MAX1848EKA |
M
White LED Step-Up Converter in SOT23
_______________________________________________________________________________________
3
DC ELECTRICAL CHARACTERISTICS (continued)
(V+ = 3V, V
OUT
= 11V, L = 33μH, C
OUT
= 1μF, C
COMP
= 0.15μF, R
SENSE
= 5
, V
CTRL
= 1V,
T
A
=
0
°
C to +85
°
C
, unless otherwise
noted. Typical values are at T
A
= +25
°
C.)
DC ELECTRICAL CHARACTERISTICS
(V+ = 3V, V
OUT
= 11V, L = 33μH, C
OUT
= 1μF, C
COMP
= 0.15μF, R
SENSE
= 5
, V
CTRL
= 1V,
T
A
=
-40
°
C to +85
°
C
, unless otherwise
noted. (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
N-CHANNEL SWITCH
LX On-Resistance
I
LX
= 100mA
1.4
0.01
0.05
500
2.2
2
T
A
= +25
°
C
T
A
= +85
°
C
LX Leakage Current
V
OUT
= V
LX
= 13V
μA
LX Current Limit
Duty cycle = 65%
300
750
mA
PARAMETER
CONDITIONS
MIN
2.6
2.15
2.10
MAX
5.5
2.59
2.56
0.4
2
14.00
13.25
30
1
UNITS
V
Supply Voltage
V+ rising, 40mV hysteresis typical
V+ falling
Not switching, V
CTRL
= V
CS
= V+
Switching, V
CTRL
= V+, V
CS
= GND
V+ rising, 1V hysteresis typical
V+ falling
Undervoltage Lockout Threshold
V
Quiescent Current
mA
12.25
11.25
10
Overvoltage Threshold
V
V
CTRL
> 0.25V
V
CTRL
= GND
OUT Input Bias Current
V
OUT
= 13V
μA
Output Voltage Range
V+ -
V
DIODE
12.25
V
ERROR AMPLIFIER
CTRL to CS Regulation
CS Input Bias Current
CTRL Input Resistance
CTRL Dual Mode Threshold
COMP Pin Resistance to Ground
COMP Output Voltage Swing
OSCILLATOR
Operating Frequency
Maximum Duty Cycle
N-CHANNEL SWITCH
LX On-Resistance
LX Current Limit
V
CTRL
= 2V, V+ = 2.6V to 5.5V
V
CS
= V
CTRL
/13.33
65
85
1
1100
240
50.0
2.4
mV/V
μA
k
mV
k
V
450
100
7.5
0.3
Hysteresis = 25mV typical
Device in shutdown or overvoltage
0.9
85
1.6
97
MHz
%
V
CTRL
= V+, V
CS
= GND
I
LX
= 100mA
Duty cycle = 65%
2.2
850
mA
225
Note 1:
Limits are 100% production tested at T
A
= +25
°
C. Limits over the operating temperature range are guaranteed through cor-
relation using statistical quality control (SQC) methods.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX1848EKA-T | 功能描述:LED照明驅動器 White LED Step-Up RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| MAX1848ETA | 制造商:Maxim Integrated Products 功能描述:HIGH-EFFICIENCY, UNIFORM-BRIGHTNESS, WHITE LE - Rail/Tube |
| MAX1848ETA+ | 制造商:Maxim Integrated Products 功能描述:LED DRVR 3SEGMENT 2.6V TO 5.5V 8PIN SOT-23 - Rail/Tube |
| MAX1848ETA+T | 功能描述:LED照明驅動器 White LED Step-Up RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| MAX1848ETA-T | 功能描述:LED照明驅動器 White LED Step-Up RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
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