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please explain what IC1 does.
johnkuky

johnkuky

@copilot please explain what IC1 does.
1y

copilot

IC1 Explanation
The BQ24070RHLR is a highly integrated Li-ion and Li-polymer battery charge management IC from Texas Instruments, primarily designed to charge single-cell Li-ion or Li-polymer batteries. Here's a breakdown of its primary functions and features:
  1. Charge Management:
    • It manages the charging of a battery by regulating the charging current and voltage, ensuring that the battery is charged safely and efficiently.
  2. Power Path Management:
    • The IC can supply power to a system while simultaneously charging the battery. This dual operation is managed through its power path management feature, which ensures that the load is powered directly from the input source when available, reducing the charging time of the battery.
  3. Dynamic Power Path Management (DPPM):
    • It includes DPPM to adjust the charging current to prevent the input source from overloading, effectively balancing the system load and charging current.
  4. Battery Detection and Preconditioning:
    • The IC has capabilities for battery detection and preconditions deeply discharged batteries with a low trickle charge current before applying the full charging current.
  5. Three Status Indicator Outputs:
    • Provides signals at the STAT1, STAT2, and ~PG pins for indicating the charging status and power good conditions.
  6. Thermal Management:
    • It incorporates thermal regulation and protection features to prevent overheating during charging.
  7. Input Voltage Range:
    • The IC typically operates with an input voltage of up to 6.5V, which is suitable for USB or adapter power inputs.
  8. Programmable Features:
    • Offers adjustable charging parameters such as charge current and termination current through external resistors connected to the ISET1 and ISET2 pins.
Key Pin Functions in Your Project:
  • IN: Input power supply pin.
  • BAT: Battery connection pin.
  • OUT: Output pin to supply power to the system.
  • ISET1/ISET2: Programming pins to set charge current.
  • CE: Chip enable pin, which is used to enable or disable charging.
Overall, the BQ24070RHLR is designed to provide high performance, safe battery charging with minimal external components. Let me know if you need more details on any specific function or pin!
1y
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2
VOUT
VIN
VOUT
BAT
BAT
C1
Capacitance
1uF
MODE
TEMP
R3
Resistance
SET1 Ω
STAT1
C3
Capacitance
32uF
PG
C5
Capacitance
10uF
CE
TEMP
R4
Resistance
DPPM Ω
R1
Resistance
TMR Ω
STAT2
C6
Capacitance
0.1uF
C7
Capacitance
DPPM F
STAT2
TEMP
R2
Resistance
SET2 Ω
MODE
PG
CE
IC1
C4
Capacitance
0.1uF
STAT1
C2
Capacitance
0.1uF
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BQ24070 Module

BQ24070 Module thumbnail
This is a BQ24070 li ion charging module created according to the manufacturer's recommendations. The board has a connector with pins for setting modes and 3 power connectors #reusable #module #bms #texas-instruments #sublayout

Properties

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M

Pricing & Availability

Distributor

Qty 1

LCSC

$2.43

Mouser

$2.68

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