BQ25180
Linear Battery Charger with Power PathThe BQ25180 is a linear battery charger with power path from Texas Instruments. View the full BQ25180 datasheet below including key specifications, electrical characteristics, absolute maximum ratings.
Official BQ25180 datasheet (PDF) — the source this page was extracted from.
BQ25180 Key Specifications
| Parameter | Value |
|---|---|
| Package Body Size | 1.6mm x 1.1mm |
| Ship Mode Current | 3.2µA |
| Fast Charge Current | 5mA to 1A |
| Sleep Mode Input Iq | 30µA |
| Termination Current | down to 0.5mA |
| Max Discharge Current | 2.5A |
| Shutdown Mode Current | 15nA |
| Communication Interface | I2C |
| Battery FET On-Resistance | 55mΩ |
| Battery-Only Mode Current | 3µA |
| Battery Regulation Voltage | 3.6V to 4.65V in 10mV steps (0.5% accuracy) |
| Input Overvoltage Tolerance | 25V |
| Input Voltage Operating Range | 3.0V to 5.9V |
| System Regulation Voltage (SYS) | 4.4V to 4.9V |
BQ25180 Overview
Part: BQ25180 — Texas Instruments
Type: 1-Cell Linear Battery Charger with Power Path and Ship Mode
Description: I2C-controlled 1-cell, 1-A linear battery charger with power path management, 25-V input tolerance, and ultra-low quiescent current down to 15 nA.
Operating Conditions:
- Supply voltage: 2.7 to 5.5 V
- Battery voltage range: 2.2 to 4.6 V
- Operating junction temperature: -40 to 125 °C
- Input current (IN to SYS): up to 1.1 A
Absolute Maximum Ratings:
- Max supply voltage: 25 V (IN)
- Max continuous current: 1.1 A (IN DC input current), 1.5 A (SYS DC discharge current)
- Max junction/storage temperature: 150 °C
Key Specs:
- Maximum fast charge current: 1 A (configurable from 5 mA)
- Battery regulation voltage accuracy: 0.5% (configurable from 3.6 V to 4.65 V)
- Battery FET ON resistance: 55 mΩ
- SYS discharge current (pulse < 20 ms): 2.5 A max
- Input supply quiescent current: 0.75 mA typ, 1 mA max (VIN = 5 V, VBAT = 3.6 V, charge enabled, ICHG = 0 mA, SYSREG = 4.5 V)
- Input supply quiescent current (pass-through): 0.660 mA typ, 0.850 mA max (SYSREG = Passthrough)
- Input sleep current: 30 μA typ (VIN = 3.6 V, VBAT = 3.7 V)
- Shutdown mode quiescent current: 15 nA typ
Features:
- Power path management for powering system and charging battery simultaneously
- Dynamic power path management for weak adapter handling
- Configurable termination current down to 0.5 mA
- Configurable NTC charging profile thresholds with JEITA support
- One push-button wake-up and hardware reset input (TS/MR pin)
- Integrated protection: input OVP, battery UVLO, short circuit, overcurrent, and thermal regulation/shutdown
Applications:
- TWS headset and charging case
- Smart glasses, AR and VR
- Smart watches and other wearable devices
- Retail automation and payment
- Building automation
Package:
- DSBGA-8 (1.6 mm × 1.1 mm, YBG package)
BQ25180 Features
- 1-A Power path linear battery charger
- -3.0-V to 5.9-V input voltage operating range optimized for battery to battery charging and USB adapter
- -25-V tolerant input voltage
- -Configurable battery regulation voltage with 0.5% accuracy from 3.6 V to 4.65 V in 10-mV steps
- -5-mA to 1-A configurable fast charge current
- -55-mΩ battery FET ON resistance
- -Up to 2.5-A discharge current to support high system loads
- -Configurable termination current down to 0.5 mA
- -Configurable NTC charging profile thresholds including JEITA support
- -Power cycle and advanced reset mechanisms to recover system
- Power path management for powering the system and charging the battery
- -Regulated system voltage (SYS) ranging from 4.4 V to 4.9 V in addition to battery voltage tracking and input pass-though options
- -Configurable input current limit
- -Selectable adapter or battery power for system
- -Dynamic power path management optimizes charging from weak adapters
- Ultra low quiescent current modes
- -15-nA Shutdown mode
- -3.2-μA Ship mode with button press wake
- -3 μA in Battery Only mode
- -30-μA input adapter Iq in Sleep mode
- One push-button wake-up and reset input
- Integrated fault protection
- -Input overvoltage protection (V IN_OVP )
- -Battery undervoltage protection (VBUVLO)
- -Battery short protection (BATSC)
- -Battery overcurrent protection (BATOCP)
- -Input current limit protection (ILIM)
- -Thermal regulation (TREG) and thermal shutdown (TSHUT)
- -Battery thermal fault protection (TS)
- -Watchdog and safety timer fault
- -System short protection
- -System overvoltage protection
BQ25180 Applications
BQ25180 Pin Configuration
Figure 6-1. YBG Package 8-Pin DSBGA (Top View)
Table 6-1. Pin Functions
| PIN - NAME | PIN - NO. | I/O (1) | DESCRIPTION |
|---|---|---|---|
| IN | A2 | P | DC Input Power Supply. IN is connected to the external DC supply. Bypass IN to GND with at least 1 μF of capacitance using a ceramic capacitor. |
| SYS | B2 | P | Regulated System Output. Connect at least 10-μF ceramic capacitor (at least >1 μF of ceramic capacitance with DC bias derating) from SYS to GND as close to the SYS and GND pins as possible. |
| BAT | C2 | P | Battery Connection. Connect to the positive terminal of the battery. Bypass BAT to GND with at least 1 μF of ceramic capacitance. |
| GND | D2 | - | Ground connection. Connect to the ground plane of the circuit. |
| SCL | B1 | I/O | I 2 C Interface Clock. Connect SCL to the logic rail through a 10-kΩ pullup resistor. |
| SDA | C1 | I/O | I 2 C Interface Data. Connect SDA to the logic rail through a 10-kΩ pullup resistor. |
| /INT | A1 | O | INT is an open-drain output that signals fault interrupts. When a fault occurs, a 128-μs active low pulse is sent out as an interrupt for the host. INT is enabled/disabled using the MASK_INT bit in the control register. Can be pulled up to the logic rail through a 1-kΩ to 20-kΩ resistor. |
| TS/MR | D1 | I/O | Manual Reset Input/ NTC thermistor pin. TS/MR is a general purpose input that must be held low for greater than t LPRESS to go into Ship mode or perform a hardware reset. It can also be used to detect shorter button press durations such as t WAKE1 and t WAKE2 TSMR may be driven by a momentary push-button or a MOS switch. The TSMR pin can also have an NTC thermistor connected on to it. |
- (1) I = Input, O = Output, I/O = Input or Output, G = Ground, P = Power.
Table 6-1. Pin Functions
BQ25180 Electrical Characteristics
VIN = 5V, VBAT = 3.6V. -40°C < TJ < 125°C unless otherwise noted. Typical data at TJ = 25°C
| PARAMETER | PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|---|
| INPUT CURRENTS | INPUT CURRENTS | INPUT CURRENTS | INPUT CURRENTS | INPUT CURRENTS | INPUT CURRENTS | INPUT CURRENTS |
| I Q_IN | Input supply quiescent current | VBAT = 3.6V, VIN = 5V, Charge enabled, ICHG = 0mA, SYSREG = 4.5V | 0.75 | 1 | mA | |
| I Q_IN | Input supply quiescent current | VBAT = 3.6V, VIN = 5V, Charge enabled, ICHG = 0mA, SYSREG = Passthrough | 0.660 | 0.850 | mA | |
| I SLEEP_IN | SLEEP input current | VIN = 3.6V, VBAT = 3.7V | 30 | μA | ||
| I Q_BAT | Battery quiescent current | V IN <V UVLO or floating, Watchdog disabled, Push button disabled, I2C functional. VBAT =3.6V T J = 25°C | 3 | 3.5 | μA | |
| I Q_BAT | Battery quiescent current | V IN <V UVLO , VBAT =3.6V, Push-button function enabled, 0°C < T J < 85°C | 4 | 5 | μA | |
| I BAT_SHUT DOWN | Battery discharge current in Ship Mode | VIN = 0V, Ship Mode, VBAT = 3.6V, Adapter Sense wake enabled. | 15 | nA | ||
| I BAT_SHIP | Battery discharge current in Ship Mode | VBAT = 3.6V, Push button function enabled (average current), 0°C < T J < 85°C | 3.2 | 4.5 | μA | |
| POWER-PATH MANAGEMENT AND INPUT | POWER-PATH MANAGEMENT AND INPUT | POWER-PATH MANAGEMENT AND INPUT | POWER-PATH MANAGEMENT AND INPUT | POWER-PATH MANAGEMENT AND INPUT | POWER-PATH MANAGEMENT AND INPUT | POWER-PATH MANAGEMENT AND INPUT |
| V IN_OP | Input voltage operating range | 3 | 5.5 | V | ||
| V IN_UVLO Z | Exit IN undervoltage lock-out | IN rising | 3 | V | ||
| V IN_UVLO | Enter IN undervoltage lock-out | IN falling | 2.7 | V | ||
| V IN_LOWV | IN voltage to start charging | IN rising | 3 | 3.15 | V | |
| V IN_LOWV Z | IN voltage to stop charging | IN falling | 2.95 | 3.1 | V | |
| V IN_PORZ | IN voltage threshold to enter shipmode | IN falling | 1.09 | 1.3 | 1.66 | V |
| V SLEEPZ | Exit sleep mode threshold | IN rising, VIN - VBAT, VBAT= 4V | 100 | 135 | 185 | mV |
| V SLEEP | Sleep mode threshold hysteresis | IN falling, VIN - VBAT, VBAT= 4V | 72 | mV | ||
| V IN_OVP | VIN overvoltage rising threshold | IN rising | 5.5 | 5.7 | 5.9 | V |
| V IN_OV_H YS | IN overvoltage hysteresis | IN falling | 125 | mV | ||
| I BAT_OCP | BATOCP(Reverse OCP only) | VBAT = 3.6V, IBAT_OCP= 00 | 0.5 | A | ||
| I BAT_OCP | BATOCP(Reverse OCP only) | VBAT = 3.6V, IBAT_OCP= 01 | 1 | A | ||
| I BAT_OCP | BATOCP(Reverse OCP only) | VBAT = 3.6V, IBAT_OCP= 10 | 1.5 | A | ||
| I BAT_OCP | BATOCP(Reverse OCP only) | VBAT = 3.6V, IBAT_OCP= 11 | Disabled | A | ||
| VBSUP1 | Enter supplement mode threshold | VBAT = 3.6V, VBAT > V BUVLO , VSYS< VBAT-VBSUP1 | 40 | mV | ||
| VBSUP2 | Exit supplement mode threshold | V BAT > V BUVLO , VSYS>VBAT-VBSUP2 | 20 | mV |
VIN = 5V, VBAT = 3.6V. -40°C < TJ < 125°C unless otherwise noted. Typical data at TJ = 25°C
BQ25180 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted) (1)
| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| Input Voltage | IN | -0.3 | 25 | V |
| Voltage | All other pins | -0.3 | 5.5 | V |
| Input Current (DC) | IN | 1.1 | A | |
| SYS Discharge Current(DC) | SYS | 1.5 | A | |
| SYS Discharge Current (tpulse <20ms) | SYS | 2.5 | A | |
| Output Sink Current | /INT | 20 | mA | |
| T J | Junction temperature | -40 | 150 | °C |
| T stg | Storage temperature | -65 | 150 | °C |
BQ25180 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
| MIN | NOM | MAX | UNIT | ||
|---|---|---|---|---|---|
| VBAT | Battery Voltage Range | 2.2 | 4.6 | V | |
| VIN | Input Voltage Range | 2.7 | 5.5 | V |
BQ25180 Thermal Information
| THERMAL | METRIC | BQ25180 YBG (DSBGA) - 8 PIN | UNIT |
|---|---|---|---|
| R θJA | Junction-to-ambient thermal resistance (EVM (2) ) | 65 | °C/W |
| R θJA | Junction-to-ambient thermal resistance (JEDEC (1) ) | 107.1 | °C/W |
| R θJC(top) | Junction-to-case (top) thermal resistance | 0.9 | °C/W |
| R θJB | Junction-to-board thermal resistance | 30.3 | °C/W |
| Ψ JT | Junction-to-top characterization parameter | 0.3 | °C/W |
| Ψ JB | Junction-to-board characterization parameter | 30.3 | °C/W |
| R θJC(bot) | Junction-to-case (bottom) thermal resistance | N/A | °C/W |
BQ25180 Typical Application
A typical application of the BQ25180 consists of the device configured as an I 2 C controlled single cell Li-ion battery charger and power path manager or battery applications such as smart watches and wireless headsets. A battery thermistor may be connected to the TS pin to allow the device to monitor the battery temperature and control charging as desired.
The system designer may connect the TS/MR pin input to a push button to send interrupts to the host as a button is pressed or to allow the application end user to reset the system.
Variants on the same datasheet
These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.
| Part Number | Manufacturer | Package |
|---|---|---|
| BQ25180YBGR | Texas Instruments | 8-XFBGA, DSBGA |
| BQ25180YBGR.A | Texas Instruments | DSBGA-8 1.6x1.1mm |
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