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参数资料
| 型号： | MAX8645YETI+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 4/14页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WHITE BCKLGT 28-TQFN |
| 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： | 线性（LDO），切换式电容器（充电泵） |
| 输出数： | 8 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 1MHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 输出电压： | 5.5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-WFQFN 裸露焊盘 |
| 供应商设备封装： | 28-TQFN-EP（4x4） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
1x/1.5x/2x White LED Charge Pumps with
Two LDOs in 4mm x 4mm TQFN
ELECTRICAL CHARACTERISTICS (continued)
(V IN = 3.6V, V GND = V PGND = 0V, ENM1 = ENM2 = ENF = IN, R SETM = R SETF = 6.8k Ω , P1 = P2 = unconnected, C REF = 0.01μF,
T A = -40°C to +85°C, unless otherwise noted. Typical values are at T A = +25°C.) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Soft-Start Done Time
100
μs
Dropout Voltage
I LDO_ = 200mA (Note 4)
120
320
mV
Load Regulation
Power-Supply Rejection
Δ V OUT / Δ V IN
Output Noise Voltage (RMS)
V IN = 3.7V, 100μA < I LDO_ < 200mA
10Hz to 10kHz, C LDO_ = 1μF, I LDO_ = 10μA
10Hz to 100kHz, C LDO_ = 1μF, I LDO_ = 10mA
-60
40
1.3
%
dB
μV RMS
Note 1: All devices are 100% production tested at T A = +25°C. Limits over the operating temperature range are guaranteed by
design.
Note 2: LED dropout voltage is defined as the M_ or F_ to GND voltage at which current into M_ or F_ drops 10% from the value at
M_ or F_ = 0.2V.
Note 3: (Greater of 2.7V or (V LDO_ + 0.5V)) ≤ V IN ≤ 5.5V.
Note 4: LDO dropout voltage is defined as V IN - V OUT when V OUT is 100mV below the value of V OUT measured when V IN =
V OUT(NOM) + 1V. Since the minimum input voltage is 2.7V, this specification is only meaningful when V OUT(NOM) > 2.5V.
Typical Operating Characteristics
(V IN = V EN_ = 3.6V, circuit of Figure 2, T A = +25°C, unless otherwise noted.)
100
EFFICIENCY vs. Li+ BATTERY
VOLTAGE DRIVING SIX MAIN LEDs
100
EFFICIENCY vs. Li+ BATTERY
VOLTAGE DRIVING FLASH LED MODULE
180
BATTERY CURRENT vs. SUPPLY VOLTAGE
DRIVING SIX MAIN LEDs
90
90
80mA TOTAL
160mA TOTAL
150
I LED = 15mA
V IN FALLING
V IN RISING
80
80
120
70
60
15mA/LED
4.5mA/LED
70
60
90
60
I LED = 4.5mA
I LED = 1.5mA
50
40
1.5mA/LED
50
40
400mA TOTA L
30
0
2.7
3.0
3.3
3.6
3.9
4.2
2.7
3.0
3.3
3.6
3.9
4.2
2.7
3.0
3.3
3.6
3.9
4.2
Li+ BATTERY VOLTAGE (V)
Li+ BATTERY VOLTAGE (V)
SUPPLY VOLTAGE (V)
4
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8645YEVKIT | 制造商:Maxim Integrated Products 功能描述:1X/1.5X/2X CHARGE PUMP WITH 6 LEDS - Rail/Tube 制造商:Rochester Electronics LLC 功能描述: |
| MAX8646ETG+ | 功能描述:直流/直流开关调节器 6A 2MHz Step-Down Regulator w/Switch 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 |
| MAX8646ETG+T | 功能描述:直流/直流开关调节器 6A 2MHz Step-Down Regulator w/Switch 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 |
| MAX8646EVKIT+ | 功能描述:直流/直流开关调节器 Evaluation Kit for the MAX8646 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 |
| MAX8647ETE+ | 功能描述:LED照明驱动器 Charge Pump for 6 White/RGB LEDs RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
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