MP2639BGR-Z
The MP2639BGR-Z is an electronic component from Monolithic Power Systems. View the full MP2639BGR-Z datasheet below including key specifications, pinout, electrical characteristics, absolute maximum ratings.
Manufacturer
Monolithic Power Systems
Category
Battery Management
Package
26-PowerVFQFN
Lifecycle
Production (Last Updated: 2 years ago)
Key Specifications
| Parameter | Value |
|---|---|
| Battery Chemistry | Lithium Ion/Polymer |
| Battery Pack Voltage | 4.5V |
| Charge Current (Max) | 3A |
| Current - Charging | Constant - Programmable |
| Fault Protection | Over Current, Over Temperature, Over Voltage, Short Circuit |
| Height - Seated (Max) | 1 mm |
| Length | 4 mm |
| Lifecycle Status | Production (Last Updated: 2 years ago) |
| Manufacturer Lifecycle Status | ACTIVE (Last Updated: 2 years ago) |
| Max Operating Temperature | 125 °C |
| Max Supply Voltage | 16 V |
| Min Operating Temperature | -40 °C |
| Min Supply Voltage | 4 V |
| Mounting Type | Surface Mount |
| Nominal Supply Voltage (DC) | 5 V |
| Number of Cells | 1 |
| Number of Channels | 1 |
| Number of Circuits | 1 |
| Number of Terminals | 26 |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Package / Case | 26-PowerVFQFN |
| Programmable Features | Timer |
| REACH SVHC | Yes |
| RoHS | Compliant |
| Supplier Device Package | 26-QFN (4x4) |
| Temperature Grade | Automotive |
| Input Voltage (Max) | 16V |
| Width | 4 mm |
Overview
The MP2639B is a highly integrated, flexible switch-mode battery charging management device for a single-cell Li-ion and Li-Polymer battery used in a wide range of portable applications.
The MP2639B works in three modes: charge mode, discharge mode, and sleep mode. (See Table 1)
When the input power supply is available, the MP2639B operates as a switching charger to charge a 1S battery from a wide input power range of 5V to 16V, which can cover a USB PD voltage level. The MP2639B automatically detects the battery voltage and charges the battery in three phases: pre-charge, constant charge, and constant voltage charge. Other features include charge termination and autorecharge.
When the input is absent, the MP2639B can provide a wide boost voltage to IN by adjusting the feedback voltage at FB. When working with the PD controller, the MP2639B can support a USB PD standard output voltage level.
To guarantee safe operation, the MP2639B limits the die temperature to a preset value of 120°C. Other safety features include input overvoltage protection, battery over-voltage protection, thermal shutdown, battery temperature monitoring, and a programmable timer to prevent prolonged charging of a dead battery.
Features
- 4.5V to 16V Input Voltage Range
- Up to 5A Programmable Charge Current
- Integrated Both Input-Current-Based and Input-Voltage-Based Power Management Functions
- 4.35V Charge Voltage with 0.5% Accuracy
- Up to 16V Programmable Boost Output Voltage
- Up to 3A Programmable Boost Output Current
- Negative Temperature Coefficient Pin for Temperature Monitoring
- Discharge Mode Load Trace Compensation
- Programmable Timer Back-Up Protection
- Thermal Regulation and Thermal Shutdown
- Integrated Short-Circuit Protection for Boost Mode
- Internal Battery Reverse Leakage Blocking
- 4 LEDs Battery Level and Status Indication
- 4mmx4mm QFN-26 Package
Applications
- Power Station Applications
- Mobile Internet Devices
- USB PD Power Banks
All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For MPS green status, please visit MPS website under Quality Assurance.
'MPS' and 'The Future of Analog IC Technology' are Registered Trademarks of Monolithic Power Systems, Inc.
ADAM (Analog Digital Adaptive Modulation), AAM (….) are Trademarks of Monolithic Power Systems, Inc.
Pin Configuration
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | BATT | - | Battery terminal. |
| 2 | LX | - | Connection node between inductor and the internal block switch. |
| 3 | IN | - | Input power pin. |
| 4 | SW | - | Switching node. |
| 5 | PGND | - | Power ground. Connect the exposed pad and PGND to the same ground plane. |
| 6 | BST | - | Bootstrap. Connect a BST capacitor between BST and SW node. |
| 7 | P-----B----- | - | Push button input. Connect a push button from P-----B----- to AGND, internally pulled up by a resistor. When P-----B----- is pushed for less than 2.5s, the discharge function is enabled and latched when MODE is high. If discharging is enabled, pushing the button for longer than 2.5s can disable the discharge. Otherwise, discharging remains and LED1-4 are enabled for 5s. |
| 8 | MODE | - | Charge or discharge mode selection. Pull logic LOW to make the MP2639B to work in charge mode; pull logic HIGH to make it work in discharge mode. |
| 9 | VCC | - | Internal circuit power supply. Bypass to AGND with a 1 μF ceramic capacitor. VCC CANNOT float or carry a load higher than 20mA. |
| 10 | AGND | - | Analog ground. |
| 11 | TMR | - | Oscillator period timer. Connect a timing capacitor between TMR and AGND to set the oscillator period. Short TMR to AGND to disable the timer function. |
| 12 | NC | - | Connecting NC to AGND is recommended. |
| 13 | LED1 | - | Fuel gauge. LED1 works with LED2, LED3, LED4 to achieve the voltage-based fuel gauge indication. |
| 14 | LED2 | - | Fuel gauge. LED2 works with LED1, LED3, LED4 to achieve the voltage-based fuel gauge indication. |
| 15 | LED3 | - | Fuel gauge. LED3 works with LED1, LED2, LED4 to achieve the voltage-based fuel gauge indication. |
| 16 | LED4 | - | Fuel gauge. LED4 works with LED1, LED2, LED3 to achieve the voltage-based fuel gauge indication. |
| 17 | FB | - | Voltage feedback input in discharge mode. |
| 18 | VLIM | - | Input voltage limit setting in charge mode. |
| 19 | VNTC | - | Pull-up bias voltage of the NTC resistive divider. |
| 20 | NTC | - | Battery temperature sense input. |
| 21 | IB | - | Current output for the battery current monitor. Using IB for a light-load monitor in discharge mode is recommended. |
| 22 | OLIM | - | Discharge output current limit setting. Connect an external resistor to AGND to program the system current. |
| 23 | ISET | - | Charge current set. Connect an external resistor to AGND to program the charge current. |
| 24 | ILIM | - | Input current limit set. Connect an external resistor to AGND to program the input current. |
| 25 | ACOK---------------- | - | Valid input supply indicator. an open-drain output. ACOK---------------- is pulled LOW when the input voltage is recognized as a good source. |
| 26 | CHGOK---------------------- | - | Charging completion indicator. Logic LOW indicates charge mode. The pin becomes an open drain once the charging has completed or is suspended. |
Electrical Characteristics
VIN = 5V, TA = 25°C, unless otherwise noted.
| Parameter | Symbol | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Input Power Characteristics | Input Power Characteristics | Input Power Characteristics | Input Power Characteristics | Input Power Characteristics | Input Power Characteristics | Input Power Characteristics |
| Input under-voltage threshold | V IN_UVLO | V IN falling | 3.8 | V | ||
| UVLO threshold hysteresis | V IN rising | 300 | mV | |||
| Input over-voltage threshold | V IN_OVLO | V IN rising | 19.5 | V | ||
| Input over-voltage threshold hysteresis | V IN falling | 640 | mV | |||
| DC/DC Converter | DC/DC Converter | DC/DC Converter | DC/DC Converter | DC/DC Converter | DC/DC Converter | DC/DC Converter |
| Input quiescent current | I IN_Q | MODE = Low, charge termination | 2.5 | mA | ||
| USB suspend mode current | I IN_SUSP | MODE = High, P ----- B ----- is not enabled. | 2.5 | mA | ||
| VCC LDO output | V VCC | V IN =5V | 4.4 | 4.5 | 4.6 | V |
| VCC LDO output | V VCC | MODE=LOW, V IN =0, , V BATT =3.5V | 3.5 | V | ||
| High side N-FET on resistance | R ON_Q1 | T A =25°C | 17 | 35 | m Ω | |
| Low side N-FET on resistance | R ON_Q2 | T A =25°C | 25 | 35 | m Ω | |
| Reverse blocking N-FET on resistance | R ON_RB | T A =25°C | 12 | 15 | m Ω | |
| Peak current limit for high- side N-FET | I HS_PK | CC mode | 6.7 | 8 | A | |
| Peak current limit for high- side N-FET | I HS_PK | Pre mode | 2.2 | 4 | A | |
| Peak current limit for low-side N-FET | I LS_PK | Discharge mode | 7.6 | 9.2 | A | |
| Operating frequency | F SW | 1150 | 1300 | 1450 | kHz | |
| Battery Charger | Battery Charger | Battery Charger | Battery Charger | Battery Charger | Battery Charger | Battery Charger |
| Pre-charge threshold | V BATT_PRE | 2.8 | 3.0 | 3.2 | V | |
| Pre-charge threshold hysteresis | 220 | mV | ||||
| Pre-charge current | I PRE | As the percentage of I CC | 12.5% | |||
| Pre-charge current | I PRE | If I CC < 1.7A | 240 | mA | ||
| Constant charge current | I CC | R ISET = 215k Ω | 0.94 | 1.04 | 1.14 | A |
| Constant charge current | I CC | R ISET = 86.6k Ω | 2.28 | 2.43 | 2.55 | A |
| Constant charge current | I CC | R ISET = 47.5k Ω | 4.1 | 4.35 | 4.6 | A |
| Termination charge voltage | V BATT_REG | 4.33 | 4.35 | 4.37 | V | |
| Termination charge current | I TERM | As the percentage of I CC If I CC <1.7A | 5 | 10 228 | 17.5 | % mA |
Absolute Maximum Ratings
| Parameter | Limit |
|---|---|
| IN | -0.3V to +20V |
| SW | -0.3V (-2V for 50ns) to +20V |
| BATT | -0.3V to +5.5V |
| BST to SW………… | -0.3V to +5.5V |
| All Other Pins to AGND | -0.3V to +5.5V |
| Continuous Power Dissipation | (T A =+25 ° C) (3) ...................................................................2.97W |
| Junction Temperature | 150 ° C |
| Lead Temperature (Solder) | 260 ° C Storage Temperature…. ..........-65°C to +150 ° C |
| Recommended Operating Conditions (4) | |
| IN to PGND………………………… | 4V to 16V |
| BATT to PGND | 3V to 4.5V |
| Operating Junction Temp. (T J ) .-40 ° C to +125 ° C |
Typical Application
Table 1: Operation Mode Table
Table 1: Operation Mode Table
| MODE Pin | Operation Mode | Active SW | Topology |
|---|---|---|---|
| High | Discharge Mode (1) | Q2 | Step-up |
| Low | Charge Mode | Q1 | Step-down |
Note: (1) MODE=high and pushing P B to start the discharge.
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