SLUSF65 October   2023 BQ25185

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Revision History
  6. 5 Description (continued)
  7. 6 Pin Configuration and Functions
  8. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Thermal Information
    4. 7.4 Recommended Operating Conditions
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Typical Characteristics
  9. 8 Detailed Description
    1. 8.1 Overview
      1. 8.1.1 Battery Charging Process
        1. 8.1.1.1 Trickle Charge
        2. 8.1.1.2 Pre-Charge
        3. 8.1.1.3 Fast Charge
        4. 8.1.1.4 ISET Pin Detection
        5. 8.1.1.5 Termination
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Input Voltage Based Dynamic Power Management (VINDPM)
      2. 8.3.2  Dynamic Power Path Management Mode (DPPM)
      3. 8.3.3  Battery Supplement Mode
      4. 8.3.4  Sleep Mode
      5. 8.3.5  SYS Regulation
      6. 8.3.6  ILIM/VSET Control
      7. 8.3.7  Protection Mechanisms
        1. 8.3.7.1 Input Overvoltage Protection
        2. 8.3.7.2 Battery Undervoltage Lockout
        3. 8.3.7.3 Battery Overcurrent Protection
        4. 8.3.7.4 System Overvoltage Protection
        5. 8.3.7.5 System Short Protection
        6. 8.3.7.6 Thermal Protection and Thermal Regulation
        7. 8.3.7.7 Safety Timer
      8. 8.3.8  Pushbutton Wake and Reset Input
        1. 8.3.8.1 Pushbutton Long Button Press Function - Factory mode
      9. 8.3.9  External NTC Monitoring (TS)
        1. 8.3.9.1 TS Biasing and Function
      10. 8.3.10 Status Pins
    4. 8.4 Device Functional Modes
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Input Current and Battery Regulation Voltage - ILIM/VSET
        2. 9.2.2.2 Fast Charge Current- ISET
        3. 9.2.2.3 Recommended Passive Components
      3. 9.2.3 Application Curves
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Third-Party Products Disclaimer
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6 Pin Configuration and Functions

GUID-20230122-SS0I-QGQM-0158-LGLTVTBXH2QH-low.svgFigure 6-1 DLH Package 10-Pin (top view)
Table 6-1 Pin Functions
PinI/O(1)

Description

NameNO.

IN

10

P

DC input power supply. IN is connected to the external DC supply. Bypass IN to GND with at least 1 uF of capacitance using a ceramic capacitor.

SYS

1

P

Regulated system output. Connect at least 10uF ceramic capacitor (at least 1uF of ceramic capacitance with DC bias de-rating) from SYS to GND as close to the SYS and GND pins as possible.

BAT

2

P

Battery connection. Connect to the positive terminal of the battery. Bypass BAT to GND with at least 1uF of ceramic capacitance.

GND

5

-

Ground connection. Connect to the ground plane of the circuit.

ILIM/VSET

7

I/O

Input current limit and battery regulation voltage program input. Refer to ILIM/VSET Control

ISET

8

I/O

Fast charge current program input. We recommend an RC for small charge current values. Prefer to work only with one resistor.

STAT1

9

O

Open drain status output. Can be pulled up to 1- 20kohm resistor. Typical pull up voltage = 1.8V, Max pull up voltage = 5V. Refer to the Status Pins section for more details.

TS/MR

6

I/O

Manual reset input/ NTC thermistor pin. TS/MR is a general purpose input that must be held low for greater than tLPRESS to go into Factory mode. TS/MR may be driven by a momentary push-button or a MOS switch. The TS/MR pin can also have an NTC thermistor connected on to it. Refer to External NTC Montitoring Section (TS) section.

CE

4

I

Charge enable active-low input. Connect CE to a high logic level to disable charging. Connect to a low logic level to enable charging.

STAT2

3

O

Open drain status output. Can be pulled up to 1- 20kohm resistor. Typical pull up voltage = 1.8V, Max pull up voltage = 5V. Refer to the Status Pins section for more details.

(1) I = Input, O = Output, I/O = Input or Output, G = Ground, P = Power.