ZHCSP18A November 2021 – June 2022 TPS22953-Q1 , TPS22954-Q1
PRODUCTION DATA
- 1 特性
- 2 應(yīng)用
- 3 說(shuō)明
- 4 Revision History
- 5 Device Comparison Table
- 6 Pin Configuration and Functions
-
7 Specifications
- 7.1 Absolute Maximum Ratings
- 7.2 ESD Ratings
- Recommended Operating Conditions
- 7.3 Thermal Information
- 7.4 Electrical Characteristics
- 7.5 Electrical Characteristics – VBIAS = 5 V
- 7.6 Electrical Characteristics – VBIAS = 3.3 V
- 7.7 Electrical Characteristics – VBIAS = 2.5 V
- 7.8 Switching Characteristics – CT = 1000 pF
- 7.9 Switching Characteristics – CT = 0 pF
- 7.10 Typical DC Characteristics
- 7.11 Typical Switching Characteristics
- 8 Parameter Measurement Information
-
9 Detailed Description
- 9.1 Overview
- 9.2 Functional Block Diagram
- 9.3
Feature Description
- 9.3.1 On and Off Control (EN Pin)
- 9.3.2 Voltage Monitoring (SNS Pin)
- 9.3.3 Power Good (PG Pin)
- 9.3.4 Supervisor Fault Detection and Automatic Restart
- 9.3.5 Manual Restart
- 9.3.6 Thermal Shutdown
- 9.3.7 Reverse Current Blocking (TPS22953-Q1 Only)
- 9.3.8 Quick Output Discharge (QOD) (TPS22954-Q1 Only)
- 9.3.9 VIN and VBIAS Voltage Range
- 9.3.10 Adjustable Rise Time (CT Pin)
- 9.3.11 Power Sequencing
- 9.4 Device Functional Modes
- 10Application and Implementation
- 11Power Supply Recommendations
- 12Layout
- 13Device and Documentation Support
- 14Mechanical, Packaging, and Orderable Information
封裝選項(xiàng)
機(jī)械數(shù)據(jù) (封裝 | 引腳)
- DQC|10
散熱焊盤(pán)機(jī)械數(shù)據(jù) (封裝 | 引腳)
- DQC|10
訂購(gòu)信息
10.1.1 Input to Output Voltage Drop
The input to output voltage drop in the device is determined by the RON of the device and the load current. The RON of the device depends upon the VIN and VBIAS conditions of the device. Refer to the RON specification of the device in the Electrical Characteristics table of this data sheet. After the RON of the device is determined based upon the VIN and VBIAS voltage conditions, use Equation 5 to calculate the input to output voltage drop.
where
- ΔV is the voltage drop from IN to OUT
- ILOAD is the load current
- RON is the On-Resistance of the device for a specific VIN and VBIAS
An appropriate ILOAD must be chosen such that the IMAX specification of the device is not violated.