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参数资料
| 型号： | MAX8798EVKIT+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/31页 |
| 文件大小： | 0K |
| 描述： | KIT EVAL FOR MAX8798 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 主要目的： | 特殊用途 DC/DC，LCD 电源 |
| 输出及类型： | 4，非隔离 |
| 功率 - 输出： | 3.56W |
| 输出电压： | 8V，3.2V，21V，-13V |
| 电流 - 输出： | 300mA，150mA，20mA，20mA |
| 输入电压： | 1.8 ~ 6 V |
| 稳压器拓扑结构： | 升压 |
| 频率 - 开关： | 1.2MHz |
| 板类型： | 完全填充 |
| 已供物品： | 板，CD |
| 已用 IC / 零件： | MAX8798 |
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页第11页第12页第13页当前第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页第28页第29页第30页第31页
Internal-Switch Boost Regulator with
Integrated 3-Channel Scan Driver for TFT LCDs
Pin Description (continued)
PIN
20
21
22
23
24
25
26
27
28, 29
30, 31
32
33
34
35
36
—
NAME
BGND
BOOST
OUT
POS
NEG
VCOM
SHDN
IN
LX
PGND
FB
COMP
AGND
GOFF
GON
EP
FUNCTION
Amplifier Ground
Operational Amplifier Supply Input. Connect to V MAIN (Figure 2) and bypass to BGND with a 1 μF or
greater ceramic capacitor.
Adjustable Sink-Current Output. OUT connects to the resistive voltage-divider at the op amp input POS
(between BOOST and GND) that determines the VCOM output voltage. I OUT lowers the divider voltage by
a programmable amount.
Operational Amplifier Noninverting Input
Operational Amplifier Inverting Input
Operational Amplifier Output
Shutdown Control Input. Pull SHDN low to disable the step-up regulator. The VCOM calibrator, op amp,
and scan driver functions remain enabled.
Step-Up Regulator Supply Input. Bypass IN to AGND (pin 34) with a 1μF or greater ceramic capacitor.
Switching Node. Connect inductor/catch diode here and minimize trace area for lowest EMI.
Power Ground. Source connection of the internal step-up regulator power switch.
Feedback Input. Reference voltage is 1.24V nominal. Connect external resistor-divider
midpoint here and minimize trace area. Set V OUT according to: V OUT = 1.24V (1 + R1/R2).
Compensation Input for Error Amplifier. Connect a series RC from COMP to AGND. Typical values are
180k and 470pF.
Ground
Gate-Off Supply. GOFF is the negative supply voltage for the CKV, CKVB, and STVP high-voltage driver
outputs. Bypass to PGND with a minimum of 0.1μF ceramic capacitor.
Gate-On Supply. GON is the positive supply voltage for the CKV, CKVB, and STVP high-voltage driver
outputs. Bypass to V MAIN or PGND with a minimum of 0.1μF ceramic capacitor.
Exposed Backside Pad. Connect to the analog ground plane through multiple vias to enhance thermal
performance.
14
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相关代理商/技术参数 |
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|---|---|
| MAX8798EVKIT+ | 功能描述:显示开发工具 MAX8798 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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