LM5170PHPR
ActiveDC/DC CNTRLR DUAL-OUT INVERTING/STEP UP/STEP DOWN 500KHZ 48-PIN HTQFP EP T/R
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LM5170PHPR
ActiveDC/DC CNTRLR DUAL-OUT INVERTING/STEP UP/STEP DOWN 500KHZ 48-PIN HTQFP EP T/R
Technical Specifications
Parameters and characteristics for this part
| Specification | LM5170PHPR |
|---|---|
| Clock Sync | True |
| Control Features | Soft Start, Power Good, Enable, Frequency Control |
| Frequency - Switching [Max] | 500 kHz |
| Frequency - Switching [Min] | 50 kHz |
| Function | Step-Up/Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Phases | 2 |
| Output Type | Transistor Driver |
| Package / Case | 48-PowerTQFP |
| Supplier Device Package | 48-HTQFP (7x7) |
| Topology | Buck-Boost |
| Voltage - Supply (Vcc/Vdd) [Max] | 85 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 6 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 10.47 | |
| 10 | $ 9.46 | |||
| 25 | $ 9.02 | |||
| 100 | $ 7.83 | |||
| 250 | $ 7.48 | |||
| 500 | $ 6.82 | |||
| Digi-Reel® | 1 | $ 10.47 | ||
| 10 | $ 9.46 | |||
| 25 | $ 9.02 | |||
| 100 | $ 7.83 | |||
| 250 | $ 7.48 | |||
| 500 | $ 6.82 | |||
| Tape & Reel (TR) | 1000 | $ 5.45 | ||
| Texas Instruments | LARGE T&R | 1 | $ 8.02 | |
| 100 | $ 6.53 | |||
| 250 | $ 5.14 | |||
| 1000 | $ 4.36 | |||
Description
General part information
LM5170-Q1 Series
The LM5170-Q1 controller provides the essential high voltage and precision elements of a dual-channel bidirectional converter for automotive 48-V and 12-V dual battery systems. It regulates the average current flowing between the high voltage and low voltage ports in the direction designated by the DIR input signal. The current regulation level is programmed through analog or digital PWM inputs.
Dual-channel differential current sense amplifiers and dedicated channel current monitors achieve typical current accuracy of 1%. Robust 5-A half-bridge gate drivers are capable of driving parallel MOSFET switches delivering 500 W or more per channel. The diode emulation mode of the synchronous rectifiers prevents negative currents but also enables discontinuous mode operation for improved efficiency with light loads. Versatile protection features include cycle-by-cycle current limiting, overvoltage protection at both HV and LV ports, MOSFET failure detection and overtemperature protection.
The LM5170-Q1 controller provides the essential high voltage and precision elements of a dual-channel bidirectional converter for automotive 48-V and 12-V dual battery systems. It regulates the average current flowing between the high voltage and low voltage ports in the direction designated by the DIR input signal. The current regulation level is programmed through analog or digital PWM inputs.
Documents
Technical documentation and resources
