ZHCSMP6A November 2020 – December 2021 TPS7H4010-SEP
PRODUCTION DATA
- 1 特性
- 2 应用
- 3 说明
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
-
7 Detailed Description
- 7.1 Overview
- 7.2 Functional Block Diagram
- 7.3
Feature Description
- 7.3.1 Synchronous Step-Down Regulator
- 7.3.2 Auto Mode and FPWM Mode
- 7.3.3 Fixed-Frequency Peak Current-Mode Control
- 7.3.4 Adjustable Output Voltage
- 7.3.5 Enable and UVLO
- 7.3.6 Internal LDO, VCC_UVLO, and BIAS Input
- 7.3.7 Soft Start and Voltage Tracking
- 7.3.8 Adjustable Switching Frequency
- 7.3.9 Frequency Synchronization and Mode Setting
- 7.3.10 Internal Compensation and CFF
- 7.3.11 Bootstrap Capacitor and VBOOT-UVLO
- 7.3.12 Power-Good and Overvoltage Protection
- 7.3.13 Overcurrent and Short-Circuit Protection
- 7.3.14 Thermal Shutdown
- 7.4 Device Functional Modes
-
8 Application and Implementation
- 8.1 Application Information
- 8.2
Typical Application
- 8.2.1 Design Requirements
- 8.2.2
Detailed Design Procedure
- 8.2.2.1 Output Voltage Setpoint
- 8.2.2.2 Switching Frequency
- 8.2.2.3 Input Capacitors
- 8.2.2.4 Inductor Selection
- 8.2.2.5 Output Capacitor Selection
- 8.2.2.6 Feed-Forward Capacitor
- 8.2.2.7 Bootstrap Capacitors
- 8.2.2.8 VCC Capacitor
- 8.2.2.9 BIAS
- 8.2.2.10 Soft Start
- 8.2.2.11 Undervoltage Lockout Setpoint
- 8.2.2.12 PGOOD
- 8.2.3 Application Curves
- 9 Power Supply Recommendations
- 10Layout
- 11Device and Documentation Support
- 12Mechanical, Packaging, and Orderable Information
封装选项
请参考 PDF 数据表获取器件具体的封装图。
机械数据 (封装 | 引脚)
- RNP|30
- KGD|0
散热焊盘机械数据 (封装 | 引脚)
- RNP|30
订购信息
8.2 Typical Application
The TPS7H4010-SEP requires only a few external components to perform high-efficiency power conversion, as shown in Figure 8-1.
Figure 8-1 TPS7H4010-SEP Basic SchematicThe TPS7H4010-SEP also integrates many practical features to meet a wide range of system design requirements and optimization, such as UVLO, programmable soft-start time, start-up tracking, programmable switching frequency, clock synchronization and a power-good flag. Note that for ease of use, the feature pins do not require an additional component when not in use. They can be either left floating or shorted to ground. Please refer to Pin Configuration and Functions section for details.
A comprehensive schematic with all features utilized is shown in Figure 8-2.
Figure 8-2 TPS7H4010-SEP Comprehensive Schematic With All
Features UtilizedThe external components must fulfill not only the needs of the power conversion, but also the stability criteria of the control loop. The TPS7H4010-SEP is optimized to work with a range of external components. For quick component selection, Table 8-1 can be used.
| fSW (kHz) | VOUT (V) | L (µH) | COUT (µF)(1) | RFBT (kΩ) | RFBB (kΩ) | RT (kΩ) |
|---|---|---|---|---|---|---|
| 350 | 1 | 2.2 | 500 | 100 | OPEN | 115 |
| 500 | 1 | 1.5 | 400 | 100 | OPEN | 78.7 or open |
| 1000 | 1 | 0.68 | 200 | 100 | OPEN | 39.2 |
| 2200 | 1 | 0.47 | 100 | 100 | OPEN | 17.4 |
| 350 | 3.3 | 4.7 | 200 | 100 | 43.5 | 115 |
| 500 | 3.3 | 3.3 | 150 | 100 | 43.5 | 78.7 or open |
| 1000 | 3.3 | 1.8 | 88 | 100 | 43.5 | 39.2 |
| 2200 | 3.3 | 1.2 | 44 | 100 | 43.5 | 17.4 |
| 350 | 5 | 6.8 | 120 | 100 | 25 | 115 |
| 500 | 5 | 4.7 | 88 | 100 | 25 | 78.7 or open |
| 1000 | 5 | 3.3 | 66 | 100 | 25 | 39.2 |
| 2200 | 5 | 2.2 | 44 | 100 | 25 | 17.4 |
| 350 | 12 | 15 | 66 | 100 | 9.1 | 115 |
| 500 | 12 | 10 | 44 | 100 | 9.1 | 78.7 or open |
| 1000 | 12 | 6.8 | 22 | 100 | 9.1 | 39.2 |
| 350 | 24 | 22 | 40 | 100 | 4.3 | 115 |
| 500 | 24 | 15 | 30 | 100 | 4.3 | 78.7 or open |