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参数资料
| 型号： | MAX8648ETE+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 3/15页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WT/RGB BCKLGT 16TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 恒定电流： | 是 |
| 拓扑： | PWM，切换式电容器（充电泵） |
| 输出数： | 6 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | RGB，白色 LED |
| 频率： | 1MHz |
| 电源电压： | 1.7 V ~ 5.5 V |
| 输出电压： | 5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN（3x3） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
Ultra-Efficient Charge Pumps for
Six White/RGB LEDs in 3mm x 3mm Thin QFN
ELECTRICAL CHARACTERISTICS (continued)
(V VDD = V IN = 3.6V, V GND = 0V, T A = -40°C to +85°C, unless otherwise noted. Typical values are at T A = +25°C.) (Note 1)
PARAMETER
SDA Output Low Voltage
CONDITIONS
I SDA = 3mA, for acknowledge (Note 2)
MIN
TYP
0.03
MAX
0.40
UNITS
V
I 2 C Clock Frequency
400
kHz
Bus Free Time Between START and
STOP (t BUF )
(Note 2)
1.3
μs
Hold Time Repeated START Condition
(t HD_STA )
SCL Low Period (t LOW )
SCL High Period (t HIGH )
Setup Time Repeated START
Condition (t SU_STA )
SDA Hold Time (t HD_DAT )
SDA Setup Time (t SU_DAT )
Setup Time for STOP Condition
(t SU_STO )
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
0.6
1.3
0.6
0.6
0
100
0.6
0.1
0.2
0.2
0.1
-0.01
50
0.1
μs
μs
μs
μs
μs
ns
μs
SERIAL-PULSE LOGIC (EN_) (MAX8648)
Logic-Input High Voltage
Logic-Input Low Voltage
V IN = 2.7V to 5.5V
V IN = 2.7V to 5.5V
1.4
0.4
V
V
Logic-Input Current
V IL = 0V or V IH = 5.5V
T A = +25°C
T A = +85°C
-1
0.01
0.1
+1
μA
See Figure 3 and the Shutdown Mode section; EN_
EN Low Shutdown Delay t SHDN
needs to be longer than 4ms to ensure LED is
4
ms
powered off
t LO (Figure 3)
t HI (Figure 3)
1
1
500
μs
μs
Initial t HI (Figure 3)
First EN_ high pulse
120
μs
CHARGE PUMP
Switching Frequency
Soft-Start Time
1
0.5
MHz
ms
Charge-Pump Regulation Voltage
(V IN - V NEG )
4.3
5.0
V
Open-Loop NEG Output Resistance
(V NEG - 0.5 x V IN ) / I NEG
2.5
5
Ω
NEG Discharge Resistance in
Shutdown or When the Charge Pump
All LEDs off, EN_ = GND
10
k Ω
is Inactive
LED1–LED6 CURRENT REGULATOR
Current Setting Range
Through an I 2 C or serial-pulse interface
0.1
24.0
mA
Current Accuracy
V LED_ = 0.5V for
charge-pump inactive,
V LED_ = -0.9V,
V NEG_ = -1.4V
24mA setting, T A = +25°C
24mA setting, T A = -40°C
to derating function start
temperature (Note 2)
1.6mA setting, T A = +25°C
-2
-5
-15
±1
±5
+2
+5
+15
%
_______________________________________________________________________________________
3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8648EVKIT+ | 制造商:Maxim Integrated Products 功能描述:MAX8648 EVAL KIT - Rail/Tube |
| MAX8649AEWE+T | 功能描述:直流/直流开关调节器 1.8A Step-Down Regulator RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX8649BEWE+T | 功能描述:直流/直流开关调节器 1.8A Step-Down Regulator RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX8649EVKIT+ | 制造商:Maxim Integrated Products 功能描述:1.8A STEP-DOWN REGULATOR W/DIFFERENTIAL REMOTE SENSE IN 2MM - Boxed Product (Development Kits) |
| MAX8649EWE+ | 制造商:Maxim Integrated Products 功能描述:1.8A STEP-DOWN REGULATOR W/DIFFEREN - Rail/Tube |
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