ZHCSBU3B
November 2013 – May 2024
TPS61162A
,
TPS61163A
PRODUCTION DATA
1
1
特性
2
应用
3
说明
4
Pin Configuration and Functions
Pin Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
5.6
EasyScale Timing Requirements
5.7
Typical Characteristics
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagram
6.3
Feature Description
6.3.1
Boost Converter
6.3.2
IFBx Pin Unused
6.3.3
Enable and Start-up
6.3.4
Soft Start
6.3.5
Full-Scale Current Program
6.3.6
Brightness Control
6.3.7
Undervoltage Lockout
6.3.8
Overvoltage Protection
6.3.9
Overcurrent Protection
6.3.10
Thermal Shutdown
6.4
Device Functional Modes
6.4.1
One-Wire Digital Interface (EasyScale Interface)
6.4.2
PWM Control Interface
6.5
Programming
6.5.1
EasyScale Programming
7
Application and Implementation
7.1
Application Information
7.2
Typical Application
7.2.1
Design Requirements
7.2.2
Detailed Design Procedure
7.2.2.1
Inductor Selection
7.2.2.2
Schottky Diode Selection
7.2.2.3
Compensation Capacitor Selection
7.2.2.4
Output Capacitor Selection
7.2.3
Application Curves
7.2.4
Additional Application Circuits
7.3
Power Supply Recommendations
7.4
Layout
7.4.1
Layout Guidelines
7.4.2
Layout Example
8
Device and Documentation Support
8.1
Device Support
8.2
Related Links
8.3
Community Resources
8.4
Trademarks
9
Revision History
10
Mechanical, Packaging, and Orderable Information
1
特性
2.7V 至 6.5V 输入电压
集成型 1.5A/40V 金属氧化物半导体场效应晶体管 (MOSFET)
1.2MHz 开关频率
双电流阱,每个高达 30mA 的电流吸收能力
1% 的典型电流匹配和精度
可选 26.5V/37.5V OVP 阈值
TPS61162A:26.5V OVP
TPS61163A:37.5V OVP
自适应升压输出至 WLED 电压
极低电压余量控制 (90mV)
灵活的数字和脉宽调制 (PWM) 亮度控制
单线制控制接口 (
EasyScale™
)
PWM 调光控制接口
高达 100:1 PWM 调光比
高达 9 位的调光分辨率
效率高达 90%
内置软启动
轻负载下采用 PFM 模式
过压保护
内置 WLED 开路/短路保护
热关断
支持 4.7µH 电感器应用