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参数资料
| 型号： | AOZ1977AI |
| 厂商： | Alpha & Omega Semiconductor Inc |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR BCKLGT 16SOIC |
| 标准包装： | 3,000 |
| 系列： | EZBoost™ |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 无 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 高亮度 LED（HBLED） |
| 频率： | 50kHz ~ 300kHz |
| 电源电压： | 8 V ~ 30 V |
| 输出电压： | 16V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
AOZ1977
Ordering Information
Part Number
AOZ1977AI
Ambient Temperature Range
-40 °C to +85 °C
Package
SOIC-16
Environmental
Green Product
AOS Green Products use reduced levels of Halogens, and are also RoHS compliant.
Please visit www.aosmd.com/web/quality/rohs_compliant.jsp for additional information.
Pin Configuration
VIN
VDD
GATE
GND
CS
AUTO
OSC
SYNC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
FB
ISET
COMP
DBRT
OVP
DPWM
VREF
ILIM
SOIC-16
(Top View)
Pin Description
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin Name
VIN
VDD
GATE
GND
CS
AUTO
OSC
SYNC
ILIM
VREF
DPWM
OVP
DBRT
COMP
ISET
FB
Pin Function
Input supply pin.
Internal 8 V linear regulator output pin for date driver. Connect a minimum 0.22 ? F ceramic
capacitor from VDD to ground.
External boost NMOS gate controller pin. Connect to the gate of external NMOS switch.
Ground pin.
NMOS switch current sense pin.
Auto restart mode control for protection. Connect appropriate capacitor to set desired Auto restart
time or connect to GND for latch off.
Frequency set pin. Connect OSC to ground via a resistor to set the switching frequency.
Frequency synchronous pin. Connect SYNC to external clock for desired switching frequency or
connect to multiple controllers for phase locked frequency synchronization .
Current limit set pin.
Reference voltage.
Fault and dimming control output pin. DPWM = High for LED connect. DPWM = Low for LED
disconnect. Connect to the gate of external NMOS switch.
Over-voltage feedback input pin . Use a voltage divider to set the boost regulator output
over-voltage protection threshold.
PWM brightness control input. DBRT controls the LED brightness by turning the LED on and off
using a PWM signal. The brightness is proportional to the PWM duty cycle.
Compensation pin. COMP is the output of the internal error amplifier. For loop compensation
connect a RC network from COMP to ground.
LED current set pin. Connect ISET to VREF resistor divider to set the LED current level.
Feedback input pin. Connect to sense resistor at LED string.
Rev. 2.1 May 2012
www.aosmd.com
Page 2 of 16
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相关代理商/技术参数 |
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| AOZ1978 | 制造商:AOSMD 制造商全称:Alpha & Omega Semiconductors 功能描述:Dual Channel High Voltage LED Driver IC |
| AOZ1995MI | 制造商:Alpha & Omega Semiconductor 功能描述:IC DISPLAY DRIVER |
| AOZ2002PI | 功能描述:Linear Voltage Regulator IC Positive Adjustable 1 Output Adj to 0.8V 2A 8-SO Exposed Pad 制造商:alpha & omega semiconductor inc. 系列:- 包装:带卷（TR） 零件状态:有效 稳压器拓扑:正，可调式 电压 - 输出:可调至 0.8V 电流 - 输出:2A 电压 - 跌落（典型值）:0.18V @ 2A 稳压器数:1 电压 - 输入:1.3 V ~ 5.5 V 电流 - 限制（最小值）:2.2A 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商器件封装:8-SO 裸露焊盘 标准包装:3,000 |
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| AOZ2003PI | 制造商:Alpha & Omega Semiconductor 功能描述:IC REG LDO ADJ 3A 8SO |
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