参数资料
型号: MIC3289-24YD6 TR
厂商: Micrel Inc
文件页数: 4/15页
文件大小: 0K
描述: IC LED DRIVR WHITE BCKLGT TSOT-6
标准包装: 1
恒定电流:
拓扑: PWM,升压(升压)
输出数: 1
内部驱动器:
类型 - 主要: 背光,闪灯/白光
类型 - 次要: 白色 LED
频率: 1MHz ~ 1.35MHz
电源电压: 2.5 V ~ 6.5 V
安装类型: 表面贴装
封装/外壳: SOT-23-6 细型,TSOT-23-6
供应商设备封装: TSOT-23-6
包装: 标准包装
工作温度: -40°C ~ 125°C
产品目录页面: 1082 (CN2011-ZH PDF)
其它名称: 576-3041-6
θ JA 2mm × 2mm MLF -8L ..................................93 ° C/W
Micrel, Inc.
Absolute Maximum Ratings (1)
Supply voltage (V IN ) .....................................................7.5V
Switch voltage (V SW ) ..................................... –0.3V to 27V
Digital Control Voltage (V DC ).............................. –0.3 to V IN
FB Voltage (V FB ) .............................................................6V
Switch Current (I SW ) ........................................................2A
Ambient Storage Temperature (T S ) ......... –65 ° C to +150 ° C
ESD Rating, Note 3 ..................................................... 2KV
MIC3289
Operating Ratings (2)
Supply Voltage (V IN ) …………………..…… ..... 2.5V to 6.5V
Output Voltage (V OUT ) …………….…................(V IN to V OVP )
Junction Temperature Range (T J ) ……......-40 ° C to +125 ° C
Package Thermal Impedance
?
θ JA TSOT23-6 ..................................................235 ° C/W
T A =25 C, V IN = 3.6V, V OUT = 10V, I OUT = 20mA, unless otherwise noted. Bold values indicate -40 ° C ≤ T J ≤ 125 ° C.
Electrical Characteristics (4)
o
Symbol
V IN
Parameter
Supply Voltage Range
Condition
Min
2.5
Typ
Max
6.5
Units
V
V UVLO
I VIN
I SD
Under-voltage Lockout
Quiescent Current
Shutdown Current (DC pin
low )
V FB >500mV
V DC = 0V for > 2ms.
1.8
2.1
1.4
0.01
2.4
5
1
V
mA
μ A
V FB
I FB
Feedback Voltage
Feedback Input Current
(+/-5%)
V FB = 250mV
237
250
450
263
mV
nA
Line Regulation
Load Regulation
2.5V ≤ V IN ≤ 4.5V
5mA ≤ I OUT ≤ 20mA
0.5
0.5
%
%
D MAX
Maximum Duty Cycle
85
90
%
I SW
V DC
Switch Current Limit
DC pin thresholds
V IN = 3.6V
High
Low
500
1.1
750
1200
0.4
mA
V
DC Pin Hysteresis
20
mV
I DC
t shutdown
t MODE_UP
t MODE_DO
DC Pin Current
Shutdown Pulse Width
Count UP mode pulse width
Count Down mode pulse
V DC = 3.6V
V IN = 2.8V to 5.5V
V DC = Low
V IN = 2.8V to 5.5V
V DC = Low
V IN = 2.8V to 5.5V
1260
100
420
5
10
160
500
μ A
μs
μs
μs
WN
width
V DC = Low
t start_up
Turn-on Delay Time
V IN = 2.8V to 5.5V
140
μs
t prog_low
t prog _ high
t delay
T prog_setup
Programming pulse width
low
Programming pulse width
high
Minimum Delay for mode
change
First Pulse Window for
Preprogramming
V IN = 2.8V to 5.5V
V IN = 2.8V to 5.5V
V IN = 2.8V to 5.5V
V DC = High
V IN = 2.8V to 5.5V
1
1
140
35
32
32
50
μs
μs
μs
μs
f SW
Oscillator Frequency
1
1.2
1.35
MHz
June 2007
4
M9999-061807
(408) 944-0800
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