97% efficiency, 125W, Wide input Synchronous 4-Switch Buck-Boost Battery Charger Reference Design PMP10594 (ACTIVE)

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Key Document

Description

PMP10594 is a synchronous 4-switch buck-boost converter reference design which utilizes the LM5175 controller for battery charger applications. The output voltage set point can be adjusted by a PWM signal over the range of 7.1V to 9.2V. I2C programming allows independent control of the average input current and charge current. Full scale input current limiting is 6A, while charge current is programmable to 12.5A. The LM5175 average current loop sets a maximum output current of 20A, which should never engage under normal circumstances. Additional pulse-by-pulse current limiting is inherent in the current-mode controller, making this a very robust design. A battery disconnect switch is used to provide trickle charging if the battery voltage is less than 6V.

Features
  • 115W maximum output power
  • 97% peak efficiency
  • PWM adjustable output voltage
  • 12C programmable iniput and charge currents
  • Synchronizable to external clock

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Parametrics
 PMP10594.1
(Output Voltage 1)
Vin (Min) (V)4.5
Vin (Max) (V)22.5
Vout (Nom) (V)9.2
Iout (Max) (A)12.5
Output Power (W)115
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBuck Boost- 4 Switch

TI Devices (9)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD25402Q3A  -20V, P ch NexFET MOSFET™, single SON 3x3, 8.9mOhm  MOSFETs  Sample & Buy Not Available
CSD87330Q3D  30V, Nch synchronous buck NexFET MOSFET™, SON3x3 PowerBlock, 20A  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
CSD87353Q5D  30V, Nch synchronous buck NexFET MOSFET™, SON5x6 PowerBlock, 40A  MOSFETs  Sample & Buy Not Available
INA199  26V, bi-directional, zero-drift, low-/high-side, voltage output current sense amplifier  Current sense amplifiers  Sample & Buy View Design Kits & Evaluation Modules
LM431  2%, 1%, or 0.5% accuracy, adjustable precision Zener shunt regulator  Voltage references  Sample & Buy Not Available
LM5175  42V Wide Vin 4-Switch Synchronous Buck-Boost Controller  Buck-boost & inverting  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G34  Single Buffer Gate  Buffer/driver  Sample & Buy Not Available
TLV272  550-uA/Ch 3-MHz Rail-to-Rail Output Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TPL0102-100  256-Taps Dual-Channel Digital Potentiometer With I2C Interface and Nonvolatile Memory  Data converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD25402Q3A VSONP (DNH)| 8 Download
CSD87330Q3D LSON-CLIP (DQZ)| 8 Download -
CSD87353Q5D LSON-CLIP (DQY)| 8 Download Download
INA199 Download Download
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LM431 Download Download
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LM5175 Download Download
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SN74LVC1G34 Download -
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TLV272 Download Download
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TPL0102-100 Download -
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 2583 06 Dec 2017
Design files (6)
Title Type Size (KB) Date
ZIP 306 06 Dec 2017
ZIP 963 06 Dec 2017
PDF 1098 06 Dec 2017
PDF 151 06 Dec 2017
PDF 104 06 Dec 2017
PDF 243 06 Dec 2017

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