参数资料
型号: AOZ1977AI
厂商: Alpha & Omega Semiconductor Inc
文件页数: 5/16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:
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
Block Diagram
OVP
VIN
Freq
Set
1V
Control
LDO
Driver
LDO
VDD
OSC
Oscillator
Bias
G enerator
OV
Protect
UVLO
SYNC
Freq
Sync
Driver
GATE
Thermal
Detect
Logic
Controller
ILIM
OCP
Driver
DPWM
DBRT
DBRT
Detect
Auto-restart
Isense
CS
Detection
EA
FB
GND
PWM
Control
Amp
1.2V Ref
Buffer
ISET
VREF
AOZ1977
AUTO
Absolute Maximum Ratings
Exceeding the Absolute Maximum Ratings may damage the
device.
COMP
Recommended Operating Conditions
The device is not guaranteed to operate beyond the maximum
Recommended Operating Conditions.
Parameter
VIN to GND
GATE, DPWM to GND
VDD to GND
DBRT, OSC, ISET, COMP, FB, AUTO,
Rating
-0.3 V to +32 V
-0.3 V to +16 V
-0.3 V to +16 V
-0.3 V to +6 V
Parameter
Supply Voltage (V VIN )
Ambient Temperature (T A )
Package Thermal Resistance
SOIC-16 ( ? JA ) (2)
Rating
8 V to 30 V
-40 °C to +85 °C
105 °C/W
SYNC, CS, ILIM, VREF, OVP to GND
Storage Temperature (T S )
ESD Rating (1)
Note:
-65 °C to +150 °C
2 kV
Note:
2. The value of ? JA is measured with the device mounted on a 1-in 2
FR-4 board with 2 oz. Copper, in a still air environment with
T A = 25 °C. The value in any given application depends on the
user ’s specific board design.
1. Devices are inherently ESD sensitive, handling precautions are
required. Human body model rating: 1.5 k ? in series with 100 pF.
Rev. 2.1 May 2012
www.aosmd.com
Page 5 of 16
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