R5601T Series
Lithium-Ion/ Lithium Polymer Battery Management Analog Front-End
NO.EA-356-190910
OVERVIEW
The R5601T is a battery management IC designed for use with a microcontroller and features and analog front-end
with overcurrent protection for multi-cell Li-ion/ Li-polymer battery packs. The R5601T supports battery packs
consisting of up to 5 cells in series. The R5601T provides a cell selection switch, a decoder that selects the cell to be
monitored based on input signals from external devices, an amplifier that outputs the monitored battery voltage, an
additional amplifier that monitors charge and discharge currents based on the voltage at both ends of external
resistors and then converts the current values to voltage and outputs the voltage values, a low-current voltage
regulator that provides voltage to the MCU, a thermal shutdown circuit, an alert output pin that notifies external
devices of any errors, and various logic circuits. The R5601T is offered in a 16-pin TSSOP-16 package.
FEATURES
• High-voltage Process·································· Absolute Maximum Rating: 32 V
• Low Current Consumption ··························· Normal Mode: Typ. 36 µA
Low Consumption Mode: Typ. 6.5 µA
(Only VR and wakeup function operating)
Standby Mode: Max. 2.0 µA
• High-accuracy Voltage Monitor ····················· Gain: 0.6 Input-referred Voltage Error: ±9 mV
Output-referred Voltage Error: ±5.4 mV
• High-accuracy Current Monitor ····················· R5601TxxxAA Gain: 10 ±1.0%, 40 ±2.0%
R5601TxxxAC Gain: 5 ±0.8%, 10 ±1.0%
• Short-circuit Current Detection ······················ The detector threshold/ time are settable using I2C interface.
Detector Threshold: 0.10, 0.15, 0.20, 0.40 V
Delay Time: 50, 100, 200, 400, 800 µs
• External Reference Voltage Output················ 3.0000 V ±3.5 mV
Temp. Characteristics: ±30 ppm/°C (0 ≤ Ta ≤ 50°C, Ta ≈ Tj)
• Voltage Regulator Output Voltage·················· 3.3 V, Output Voltage Accuracy: 1.5% (−20°C to 60°C)
Output Current Limit: Min. 30 mA
• Thermal Shutdown ····································· can be enabled or disabled by using I2C interface
• Built-in FET Switch ····································· FET Switch can be set with MCU using I2C interface
• Alert Output ·············································· provides a notification to MCU when detecting an event
• Low-Power Mode······································· disables some of the internal function by the MCU control
• Standby Mode ··········································· sets the IC to standby mode by inputting an external signal
to reduce the consumption current.
• Wake-up Function ······································ sets the IC to normal mode when detecting a discharging current
to reduce the consumption current.
• I2C Interface ·············································· using an I2C allows to control the IC with MCU
• Package··················································· TSSOP-16 (0.65 mm pitch)
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