参数资料
| 型号： | MAX8751ETJ+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 11/27页 |
| 文件大小： | 0K |
| 描述： | IC CNTRLR CCFL INV 32-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： | 30 ~ 80 kHz |
| 电流 - 电源： | 3.2mA |
| 电源电压： | 6 V ~ 28 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页当前第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页
Fixed-Frequency, Full-Bridge CCFL
Inverter Controller
Pin Description (continued)
PIN
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
—
NAME
GH2
LX2
IN
V CC
LX1
GH1
BST1
GL1
PGND1
GND
PCOMP
COMP
IFB
PS2
ISEC
PAD
DESCRIPTION
Gate-Driver Output for High-Side MOSFET NH2
Gate-Driver Return for GH2. LX2 is the input to the primary current-limit and zero-crossing
comparators. The controller senses the voltage across the low-side MOSFET NL2 (LX2 - GND) for
primary overcurrent condition and zero-crossing detection.
Supply Input. Input to the internal 5.3V linear regulator that powers the device. Bypass IN to GND with
a 0.1μF ceramic capacitor.
5.3V/20mA Linear Regulator Output. Supply voltage for the device including the low-side gate drivers
GL1 and GL2. Bypass V CC with a 1.0μF ceramic capacitor to GND.
Gate Driver Return for GH1. LX1 is the input to the primary current-limit and zero-crossing
comparators. The controller senses the voltage across the low-side MOSFET NL1 (LX1 - GND) for
primary overcurrent condition and zero-crossing detection.
Gate Driver Output for High-Side MOSFET NH1
High-Side Gate-Driver GH1 Supply Input. The MAX8751 includes an integrated boost diode. Connect
a 0.1μF capacitor between LX1 and BST1 to complete the bootstrap circuit.
Gate-Driver Output for Low-Side MOSFET NL1
Power Ground. PGND is the return for the GL1 gate driver.
System Ground
Compensation Node of the Phase-Lock Loop. Connect a 0.1μF capacitor between PCOMP and GND
to compensate the PLL.
Transconductance Error-Amplifier Output. A compensation capacitor of 0.01μF connected between
COMP and GND stabilizes the controller. The rise and fall time of the lamp-current envelope in DPWM
operation is also determined by the COMP capacitor.
Lamp Current-Feedback Input. The IFB sense signal is internally full-wave rectified. The average
value of the rectified signal is regulated to 790mV (typ) by controlling the on-time of the high-side
MOSFET. An open-lamp fault is generated if the IFB is continuously below 790mV (typ) for a period
set by TFLT. See the Lamp-Out Protection and Setting the Fault-Delay Time sections for details.
Phase-Shift Select Input for Slave. For details, see the Slave Operation (HFCK, LFCK, PSCK, DPWM)
section.
Transformer Secondary Current-Feedback Input. When the average voltage on ISEC exceeds the
internal overcurrent threshold, the controller turns on an internal current sink, discharging the COMP
capacitor. An RC current-sense network connected between the low-voltage end of the transformer
secondary and the ground allows setting the maximum secondary current during short-circuit fault.
Exposed Backside Pad. Connect PAD to GND.
______________________________________________________________________________________
11
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| MAX8751EVKIT | 功能描述:电源管理IC开发工具 MAX8751 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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| MAX8752ETA+ | 制造商:Maxim Integrated Products 功能描述:TFT LCD DC-DC CNVRTR 8TDFN EP - Rail/Tube |
| MAX8752ETA+T | 功能描述:LCD 驱动器 TFT LCD Step-Up DC/DC Converter RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
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