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RT9757 - 7A Single Cell Smart Cap Divider and Direct Charge Charger

Datasheet Summary

Description

The RT9757 is a high efficiency and high charge current charger.

The efficiency is up to 98.2% when VBAT = 4V, IBAT = 2A and the maximum charge current is up to 7A in DIV2 mode.

The efficiency is up to 99.1% when VBAT = 4V, IBAT = 1A and the maximum charger current is up to 5A in bypass mode.

Features

  • Integrates Cap Divider Mode (DIV2 Mode) and Direct Charging Mode (Bypass Mode).
  • Supports BC1.2 and UFCS Protocol.
  • External OVPMOS Control and Regulation.
  • High Absolute Maximum Rating of 37V.
  • Fast Reaction Time 100ns and Fast Turn Off Time 100ns.
  • VBAT Voltage Regulation (VBAT REG).
  • IBAT Current Regulation (IBAT REG).
  • Dual-Phase Charge Pump Core.
  • 7A Output Current Capability.
  • Efficiency Up to 98.2% when VBAT = 4V, IBAT = 2A (DIV2 Mode).
  • Effic.

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Datasheet preview – RT9757

Datasheet Details

Part number RT9757
Manufacturer Richtek
File Size 2.01 MB
Description 7A Single Cell Smart Cap Divider and Direct Charge Charger
Datasheet download datasheet RT9757 Datasheet
Additional preview pages of the RT9757 datasheet.

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Full PDF Text Transcription

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RT9757 7A Single Cell Smart Cap Divider and Direct Charge Charger with 8-Channel ADC, USB BC 1.2 Detection and UFCS General Description The RT9757 is a high efficiency and high charge current charger. The efficiency is up to 98.2% when VBAT = 4V, IBAT = 2A and the maximum charge current is up to 7A in DIV2 mode. The efficiency is up to 99.1% when VBAT = 4V, IBAT = 1A and the maximum charger current is up to 5A in bypass mode. The device integrates smart cap divider topology, direct charging mode, external overvoltage protection control, an input reverse blocking NFET and 2-way regulation, a dual-phase charge pump core, 14-way protection, 9-way system alarm, 8-Channel high speed analog-to-digital converter, USB BC 1.2 detection and UFCS protocol.
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