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MAX1707

更新时间： 2024-01-08 03:55:21
品牌 Logo 应用领域
美信 - MAXIM 闪光灯泵
页数 文件大小 规格书
15页 793K
描述
Light-Management IC with Efficient 1x/1.5x/2x Charge Pump for Backlight/Flash/RGB LEDs

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MAX1707 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Obsolete零件包装代码：QFN
包装说明：4MM X 4MM , TQFN-24针数：24
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.91
接口集成电路类型：LIQUID CRYSTAL DISPLAY DRIVERJESD-30 代码：S-PQCC-N24
JESD-609代码：e0长度：4 mm
湿度敏感等级：1功能数量：1
端子数量：24封装主体材料：PLASTIC/EPOXY
封装代码：HVQCCN封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：245
认证状态：Not Qualified座面最大高度：0.8 mm
表面贴装：YES端子面层：Tin/Lead (Sn/Pb)
端子形式：NO LEAD端子节距：0.5 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：4 mmBase Number Matches：1

MAX1707 数据手册

 浏览型号MAX1707的Datasheet PDF文件第4页浏览型号MAX1707的Datasheet PDF文件第5页浏览型号MAX1707的Datasheet PDF文件第6页浏览型号MAX1707的Datasheet PDF文件第8页浏览型号MAX1707的Datasheet PDF文件第9页浏览型号MAX1707的Datasheet PDF文件第10页 
Light-Management IC with Efficient 1x/1.5x/2x  
Charge Pump for Backlight/Flash/RGB LEDs  
Pin Description  
PIN  
NAME  
FUNCTION  
Power-Supply Voltage Input. Connect PIN to IN. Connect a 4.7µF ceramic capacitor from PIN to  
PGND. The input voltage range is 2.7V to 5.5V. PIN is high impedance during shutdown.  
1
PIN  
Analog Supply Voltage Input. Connect IN to PIN. The input voltage range is 2.7V to 5.5V. IN is high  
impedance during shutdown.  
2
3
4
IN  
Ground. Connect GND to system ground and the ground side of the input bypass capacitor as close  
to the IC as possible.  
GND  
Logic-Input Supply Voltage. Connect V  
to the logic supply driving SDA, SCK, and STB. Connect a  
DD  
V
DD  
0.1µF ceramic capacitor from V  
to GND.  
DD  
5
6
M4  
M3  
M2  
M1  
F4  
2
LED Cathode Connections. Current flowing into these pins is based on the internal I C dimming  
registers. The charge pump regulates the lowest LED cathode voltage to 0.15V. Grounding any of  
these pins forces output overvoltage protection mode causing OUT to pulse on and off at  
approximately 5V. To avoid constantly operating in overvoltage protection mode, any unused LED  
cathode connection (M_, S_, or F_) must be connected to OUT. This disables the corresponding  
current regulator. These pins are high impedance in shutdown.  
7
8
9
10  
11  
12  
13  
14  
15  
F3  
F2  
M1 through M4 are for main display backlights.  
S1 through S3 are for subdisplay backlights or one RGB LED indicator.  
F1 through F4 are for LED flash.  
F1  
S3  
S2  
S1  
Any combination of M_, S_, and F_ can be connected together to drive higher current LEDs.  
Strobe Logic Input. Drive STB low to turn on the flash LEDs (F1, F2, F3, F4) at the current specified in  
the internal strobe register. Drive STB high to turn off the flash LEDs. Connect to V  
are turned on/off only by the I C interface.  
if the flash LEDs  
16  
STB  
DD  
2
2
17  
18  
SCK  
SDA  
I C Clock Input. Data is read on the rising edge of SCK.  
2
I C Data Input. Data is read on the rising edge of SCK.  
Transfer Capacitor 1 Negative Connection. Connect a 1µF ceramic capacitor from C1N to C1P. C1N  
is shorted to IN during shutdown.  
19  
20  
21  
22  
23  
C1N  
C1P  
Transfer Capacitor 1 Positive Connection. Connect a 1µF ceramic capacitor from C1N to C1P. During  
shutdown, if V  
> V , C1P is shorted to OUT. If V  
< V , C1P is shorted to IN.  
OUT IN  
OUT  
IN  
Power Ground. Charge-pump switching ground. Connect to GND and EP as close to the IC as  
possible.  
PGND  
OUT  
C2P  
Output. Connect a 10µF ceramic capacitor from OUT to PGND. The anodes of all the LEDs connect  
to OUT. OUT is pulled to ground through an internal 5kΩ resistor in shutdown.  
Transfer Capacitor 2 Positive Connection. Connect a 1µF ceramic capacitor from C2N to C2P. During  
shutdown, if V  
> V , C2P is shorted to OUT. If V  
< V , C2P is shorted to IN.  
OUT IN  
OUT  
IN  
Transfer Capacitor 2 Negative Connection. Connect a 1µF ceramic capacitor from C2N to C2P. C2N  
is shorted to IN during shutdown.  
24  
—
C2N  
EP  
Exposed Paddle. Connect to GND and PGND directly under the IC.  
_______________________________________________________________________________________  
7
1...45678910...15

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