This website stores cookies on your computer. These cookies are used to collect information about how you interact with our website and allow us to remember you. We use this information in order to improve and customize your browsing experience and for analytics and metrics about our visitors both on this website and other media. To find out more about the cookies we use, see our Cookie Statement. If you decline, your information won’t be tracked when you visit this website. A single cookie will be used in your browser to remember your preference not to be tracked. Find out more here.
The RT9759 is a high efficiency and high charge current charger. The efficiency is up to 97.8% when VBAT = 4.2V, IBAT = 2.5A and the maximum charge current is up to 8A. The device integrates smart cap divider topology, external over-voltage protection control, an input reverse blocking NFET and 2-way regulation, a dual-phase charge pump core, 15-way protection, 7-way system alarm and 9-Channel high speed analog-to-digital converter. The high speed analog-to-digital converter provides input and output voltage, current and temperature information for the host. The host can monitor the information by I2C serial interface.
External OVP Control and Regulation► High Absolute Maximum Rating of 40V► Fast Reaction Time 100ns and Fast Turn Off Time 100ns► VBAT Voltage Regulation (VBAT REG)► IBAT Current Regulation (IBAT REG)
Input Reverse Blocking NFET ► Block the Reverse Current
Dual-Phase Charge Pump Core► 8A Output Current Capability► Efficiency Up to 97.8% when VBAT = 4.2V, IBAT = 2.5A► 250kHz to 750kHz Variable Switching Frequency Stay Out of Audio Band► Spread Spectrum Technology for EMI Reduction
4-Error Charge Pump Switch Protection► VBUS Voltage Too High Error Protection before Switch (VBUS_HIGH_ERR)► VBUS Voltage Too Low Error Protection before Switch (VBUS_LOW_ERR)► CFLY Short Error Protection Before Switch (CFLY_DIAG)► NFET Over-Current Error Protection During Switch (CON_OCP)
10-Way System Protection► VBUS Over-Voltage Protection (VBUS_OVP)► IBUS Over-Current Protection (IBUS_OCP)► IBUS Under-Current Protection (IBUS_UCP)► VOUT Over-Voltage Protection (VOUT_OVP)► VBAT Over-Voltage Protection (VBAT_OVP)► IBAT Over-Current Protection (IBAT_OCP)► Dropout Over-Voltage Protection (VDR_OVP)► TSBUS Over-Temperature Protection (TBUS_OTP)► TSBAT Over-Temperature Protection (TBAT_OTP)► Junction Over-Temperature Protection (TDIE_OTP)
7-Way System Alarm► VBUS Over-Voltage Alarm (VBUS_OVP_ALM)► IBUS Over-Current Alarm (IBUS_OCP_ALM)► VBAT Over-Voltage Alarm (VBAT_OVP_ALM)► IBAT Over-Current Alarm (IBAT_OCP_ALM)► IBAT Under-Current Alarm (IBAT_UCP-ALM)► TSBUS and TSBAT Over-Temperature Alarm (TBUS_TSBAT_OTP_ALM)► TDIE Over-Temperature Alarm (TDIE_OTP_ALM)
9-Channel 12-bit ADC► High Speed Data Rate for 128 Times Average Per Channel► VBUS, IBUS, VOUT, VBAT, IBAT, TSBUS, TSBAT, TDIE, VAC 9-Channel for Voltage/Current Measurement
Subscribe to receive the latest product news. (Login required)
.
Please check your email box and click validation url.
