参数资料
| 型号： | MAX8709BETI+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 9/24页 |
| 文件大小： | 0K |
| 描述： | IC CNTRLR CCFL HI EFF 28-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | CCFL 控制器 |
| 频率： | 25 ~ 300 kHz |
| 电流 - 电源： | 1.5mA |
| 电流 - 输出： | 500mA |
| 电源电压： | 4.6 V ~ 28 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 28-WFQFN 裸露焊盘 |
| 供应商设备封装： | 28-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
High-Efficiency CCFL Backlight
Controller with SMBus Interface
Pin Description (continued)
PIN
26
27
28
NAME
CCV
BATT
V CC
FUNCTION
Voltage-Loop Compensation Pin. CCV is the output of the voltage-loop transconductance amplifier (GMV)
that regulates the maximum average secondary transformer voltage. The CCV voltage controls the time
interval during which the full bridge applies the input voltage (BATT) to the transformer primary. The CCV
capacitor also sets the rise time and fall time of the lamp current in DPWM. Connect CCV to GND with a
6.8nF capacitor. CCV is internally discharged to GND in shutdown.
MAX8709B Supply Input. Input to the internal 5.3V linear regulator (V CC ) that provides power to the
device. Bypass BATT to GND with a 0.1μF capacitor.
5.3V Linear-Regulator Output. V CC is the supply voltage for the MAX8709B. Bypass V CC to GND with a
0.47μF ceramic capacitor. V CC can also be connected to BATT if V BATT < 5.5V.
V IN
7V TO 24V
C1
4.7 μ F
BATT
V CC
25V
C8
0.1 μ F
GND
LOT
V DD
BST2
D1
C7
0.47 μ F
BST1
REF
C9
0.1 μ F
R4
100k Ω
MAX8709B
GH1
C6
0.1 μ F
NH1
NH2
C2
1 μ F
T1
1:93
CCFL
ILIM
LX1
C5
R5
100k Ω
LX2
0.1 μ F
GL1
NL1
NL2
C10
0.01 μ F
CCV
CCI
PGND
GL2
C3
15pF
3kV
C11
0.1 μ F
SMBSUS
GH2
SUS
VFB
SMBDATA
SMBCLK
SDA
SCL
ISEC
IFB
R3
40.2 Ω
1%
C4
22nF
R2
2k Ω
R1
150 Ω
1%
Figure 1. Typical Operating Circuit of the MAX8709B
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9
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8709ETI | 功能描述:显示驱动器和控制器 RoHS:否 制造商:Panasonic Electronic Components 工作电源电压:2.7 V to 5.5 V 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Reel |
| MAX8709ETI+ | 功能描述:显示驱动器和控制器 CCFL Backlight Controller w/SMBus RoHS:否 制造商:Panasonic Electronic Components 工作电源电压:2.7 V to 5.5 V 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Reel |
| MAX8709ETI+T | 功能描述:显示驱动器和控制器 CCFL Backlight Controller w/SMBus RoHS:否 制造商:Panasonic Electronic Components 工作电源电压:2.7 V to 5.5 V 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Reel |
| MAX8709ETI-T | 功能描述:显示驱动器和控制器 RoHS:否 制造商:Panasonic Electronic Components 工作电源电压:2.7 V to 5.5 V 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Reel |
| MAX8709EVKIT | 功能描述:显示开发工具 MAX8709 Eval Kit RoHS:否 制造商:4D Systems 产品:4Display Shields 工具用于评估:?OLED-160-G1, ?OLED-160-G2 接口类型:Serial 工作电源电压:5 V |
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