4.5 V to 60 V Wide-Input Synchronous PWM Buck Controller
Product details
Parameters
Package | Pins | Size
Features
- Wide Input Voltage Range from 4.5 V to 60 V
- 600 mV Reference Voltage with 1% Accuracy
- Programmable UVLO and Hysteresis
- Voltage Mode Control With Voltage Feed Forward
- Programmable Frequency Between 100 kHz and 600 kHz
- Bi-directional -Frequency Synchronization With Master/Slave Option
- Low-side FET Sensing Overcurrent Protection and High-Side FET Sensing Short-Circuit Protection With Integrated Thermal Compensation
- Programmable Closed Loop Soft-Start
- Supports Pre-Biased Outputs
- Thermal Shutdown at 165°C with Hysteresis
- Voltage Tracking
- Powergood
- ENABLE with 1-µA Low Current Shutdown
- 8.0-V and 3.3-V LDO Output
- Integrated Bootstrap Diode
- 20-Pin 3.5 mm × 4.5 mm VQFN (RGY) Package
- Create a Custom Design with WEBENCH Tools
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Description
TPS40170 is a full-featured, synchronous PWM buck controller that operates at an input voltage between 4.5 V and 60 V and is optimized for high-power density, high-reliability DC-DC converter applications. The controller implements voltage-mode control with input voltage feed-forward compensation that enables instant response to input voltage change. The switching frequency is programmable from 100 kHz to 600 kHz.
The TPS40170 has a complete set of system protection and monitoring features such as programmable undervoltage lockout (UVLO), programmable overcurrent protection (OCP) by sensing the low-side FET, selectable short-circuit protection (SCP) by sensing the high-side FET and thermal shutdown. The ENABLE pin allows for system shutdown in a low-current (1 µA typical) mode. The controller supports pre-biased output, provides an open-drain PGOOD signal, and has closed-loop soft-start, output voltage tracking and adaptive dead-time control.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The Cranking simulator generates preprogrammed cranking pulses, resembling typical pulse as seen on Car-Battery during cranking (e.g. during start-stop operation). Other pulses can be configured via source-code change, which makes it applicable for any supply-voltage profile in the range of 2.18V.
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Features
- 3 pre-programmed typical cranking pulses
- Other pulses individually programmable via firmware-change
- up to 50W output power
- Adjustable repetition rate
- Continuous or single-shot operation
Description
Features
- Wide-Input Voltage Range from 4.5V to 60V
- 600mV Reference Voltage with 1% Accuracy
- Programmable UVLO and Hysteresis
- Voltage Mode Control With Voltage Feed Forward
- Programmable Frequency Between 100 kHz and 600 kHz
- Low-side FET Sensing Overcurrent Protection and High-side FET Sensing Short-circuit (...)
Description
The TPS40170EVM-597 is a fully assembled and tested circuit for evaluating the TPS40170 synchronous step-down controller with two NexFET devices CSD18537NQ5A and CSD18563Q5A. The TPS40170EVM-597 operates from a 10V to 36V input (24V nominal) and provides a 5V output up to 10A.
Features
- Designed with low gate charge (Qg) NexFET devices to minimize power losses
- Wide 4.5 V to 36 V input voltage range
- Integrated high-side and low-side N channel FET drivers
- Voltage mode control with voltage feed forward
- Low-side FET sensing Over-current Protection and high-side FET sensing Short-circuit (...)
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Reference designs
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| VQFN (RGY) | 20 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
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