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参数资料
| 型号： | MAX17061ETI+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 10/26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： | 75 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 8 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 车载，背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 1MHz |
| 电源电压： | 4.5 V ~ 26 V |
| 输出电压： | 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： | 管件 |
| 工作温度： | -40°C ~ 85°C |
8-String White LED Driver with
SMBus for LCD Panel Applications
Pin Description
PIN
1
2
3
4, 6, 18
5
7
8
9
10
11
12
NAME
FB3
FB4
GND
N.C.
FB5
FB6
FB7
FB8
OSC
PWMI
PWMO
FUNCTION
LED String 3 Cathode Connection. FB3 is the open-drain output of an internal regulator, which controls
current through FB3. FB3 can sink up to 30mA. If unused, connect FB3 to V CC .
LED String 4 Cathode Connection. FB4 is the open-drain output of an internal regulator, which controls
current through FB4. FB4 can sink up to 30mA. If unused, connect FB4 to V CC .
Analog Ground
No Connection
LED String 5 Cathode Connection. FB5 is the open-drain output of an internal regulator, which controls
current through FB5. FB5 can sink up to 30mA. If unused, connect FB5 to V CC .
LED String 6 Cathode Connection. FB6 is the open-drain output of an internal regulator, which controls
current through FB6. FB6 can sink up to 30mA. If unused, connect FB6 to V CC .
LED String 7 Cathode Connection. FB7 is the open-drain output of an internal regulator, which controls
current through FB7. FB7 can sink up to 30mA. If unused, connect FB7 to V CC .
LED String 8 Cathode Connection. FB8 is the open-drain output of an internal regulator, which controls
current through FB8. FB8 can sink up to 30mA. If unused, connect FB8 to V CC .
Oscillator Frequency-Selection Pin. Connect OSC to V CC to set the step-up converter’s oscillator frequency to
1MHz. Connect OSC to GND to set the frequency to 500kHz. Float OSC to set the frequency to 750kHz.
PWM Signal Input. This PWM signal is used for brightness control in PWM mode or DPST mode. This signal
is filtered and its duty cycle is converted into a digital signal to calculate DPWM duty cycle. In PWM mode,
the DPWM duty cycle equals the input PWM duty cycle. In DPST mode, the DPWM duty cycle is the input
PWM duty cycle multiplied by the SMBus brightness command.
Filtered PWM Signal Output. Connect a capacitor between PWMO and GND. The capacitor forms a lowpass
filter with an internal 40k Ω (typ) resistor to filter the PWM signal into an analog signal whose level represents
the duty-cycle information of the input PWM signal.
DPWM Frequency Adjustment Pin. Connect a resistor from FSET to GND to set the internal DPWM frequency:
13
FSET
where: α = 10.638
γ = 58509
f DPWM =
10 9
α × R [ Ω ] + γ
This DPWM signal directly chops WLED current with the calculated duty cycle for brightness control.
14
15
16
17
19
20
21
SDA
SCL
LX2
LX1
PGND2
PGND1
IN
SMBus Serial-Data Input
SMBus Serial-Clock Input
Boost Regulator Internal MOSFET Drain. Connect the inductor and the Schottky diode to LX2 node. LX2
should always be shorted to LX1 externally.
Boost Regulator Internal MOSFET Drain. Connect the inductor and the Schottky diode to LX1 node. LX1
should always be shorted to LX2 externally.
Boost Regulator Power Ground
Boost Regulator Power Ground
Supply Input, 4.5V to 26V. V IN biases the internal 5V linear regulator that powers the device. Bypass IN to
GND directly at the pin with a 0.1μF or greater ceramic capacitor.
10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX17061ETI+ | 功能描述:LED照明驱动器 8-String White LED Driver w/SMBus 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 |
| MAX17061ETI+T | 功能描述:LED照明驱动器 8-String White LED Driver w/SMBus 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 |
| MAX17061EVCMAXQU+ | 功能描述:LED 照明开发工具 Evaluation Kit/Evaluation System for the MAX17061 RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
| MAX17061EVKIT+ | 功能描述:LED 照明开发工具 MAX17061 Eval Kit RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
| MAX17062ETB+ | 制造商:Maxim Integrated Products 功能描述: 制造商:Maxim Integrated Products 功能描述:TFT-LCD STEP-UP DC-DC CONVERTER - Rail/Tube |
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