參數(shù)資料
型號(hào)： MAX8901B
廠(chǎng)商： Maxim Integrated Products, Inc.
英文描述： Highest Efficiency Supply for 2 to 6 Series WLEDs in a 2mm x 2mm TDFN Package
中文描述： 效率最高的2至6只串聯(lián)WLED供電電源，2mm x 2mm TDFN封裝
文件頁(yè)數(shù)： 3/15頁(yè)
文件大?。?/td> 310K
代理商： MAX8901B
M
Highest Efficiency Supply for 2 to 6
Series WLEDs in a 2mm x 2mm TDFN Package
_______________________________________________________________________________________
3
Note 1:
Specifications to -40°C are guaranteed by design and characterization and are not production tested.
PARAMETER
SYMBOL
CONDITIONS
MIN
-1
-3
TYP
MAX
+1
+3
UNITS
%
%
T
A
= +25
°
C
T
A
= -40
°
C to +85
°
C
Serial Dimming
Full-Scale LED Current Accuracy
I
LED
= 24.75mA
(MAX8901B)
PWM Frequency for PWM
Dimming Control
f
PWM
MAX8901A
100
kHz
CS to COMP Transconductance
40
60
80
μS
Soft-Start Interval
t
SOFT-
START
C
COMP
= 0.022μF (Figure 1)
10
ms
Thermal Shutdown
OSCILLATOR
Operating Frequency
Maximum Duty Cycle
n-CHANNEL SWITCH
160
°
C
f
SW
D
MAX
700
90
750
92
800
kHz
%
V
CS
= 0.4V
T
A
= +25
°
C
T
A
= +85
°
C
0.1
0.1
0.7
0.70
5
LX Leakage Current
I
LXLKG
V
LX
= 27V
μA
n-Channel Switch On-Resistance
n-Channel Current Limit
R
LX
I
LIM
1.4
0.77
Ω
A
0.63
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= V
ON
= V
OVP
= 3.6V, V
PGND
= V
GND
= 0V, COMP, CS, and LX are unconnected, T
A
= -40°C to +85°C, unless otherwise noted.
Typical values are at T
A
= +25°C.) (Note 1)
1
0
2
3
4
5
28
29
30
31
32
SHUTDOWN
t
SHDN
1.33ms (typ)
2/33
1/33
3/33
4/33
5/33
6/33
28/33
29/33
30/33
31/33
32/33
32/33
SHUTDOWN
FULL
FULL
I
LED_
t
SOFT-START
t
HI_INIT
> 40
μ
s
t
LO
t
HI
> 500ns
500ns TO 500
μ
s
STEP
33
ON
Figure 1. MAX8901B Timing Diagram
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX8901BETA+ 制造商:Maxim Integrated Products 功能描述:HIGHEST EFFICIENCY SUPPLY FOR 2 TO 6 SERIES WLEDS IN A - Rail/Tube
MAX8901BETA+CAR 功能描述:LED照明驅(qū)動(dòng)器 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(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
MAX8901BETA+T 功能描述:LED照明驅(qū)動(dòng)器 Supply for 2 to 6 Series WLEDs 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(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
MAX8901BETA+TCAR 功能描述:LED照明驅(qū)動(dòng)器 Highest Efficiency Supply for 2 to 6 Series WLEDs in a 2mm x 2mm TDFN Package 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(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
MAX8901BETA+TCH8 功能描述:LED照明驅(qū)動(dòng)器 Supply for 2 to 6 Series WLEDs 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(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
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