SLUSCM3K
June 2016 – July 2020
BQ77904
,
BQ77905
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Device Comparison
6
Pin Configuration and Functions
Pin Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Timing Requirements
7.7
Typical Characteristics
8
Detailed Description
8.1
Overview
8.1.1
Device Functionality Summary
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Protection Summary
8.3.2
Fault Operation
8.3.2.1
Operation in OV
8.3.2.2
Operation in UV
8.3.2.3
Operation in OW
8.3.2.4
Operation in OCD1
8.3.2.5
Operation in OCD2
8.3.2.6
Operation in SCD
8.3.2.7
Overcurrent Recovery Timer
8.3.2.8
Load Removal Detection
8.3.2.9
Load Removal Detection in UV
8.3.2.10
Operation in OTC
8.3.2.11
Operation in OTD
8.3.2.12
Operation in UTC
8.3.2.13
Operation in UTD
8.3.3
Protection Response and Recovery Summary
8.3.4
Configuration CRC Check and Comparator Built-In-Self-Test
8.3.5
Fault Detection Method
8.3.5.1
Filtered Fault Detection
8.3.6
State Comparator
8.3.7
DSG FET Driver Operation
8.3.8
CHG FET Driver Operation
8.3.9
External Override of CHG and DSG Drivers
8.3.10
Configuring 3-S, 4-S, or 5-S Mode
8.3.11
Stacking Implementations
8.3.12
Zero-Volt Battery Charging Inhibition
8.4
Device Functional Modes
8.4.1
Power Modes
8.4.1.1
Power-On Reset (POR)
8.4.1.2
FAULT Mode
8.4.1.3
SHUTDOWN Mode
8.4.1.4
Customer Fast Production Test Modes
9
Application and Implementation
9.1
Application Information
9.1.1
Recommended System Implementation
9.1.1.1
CHG and DSG FET Rise and Fall Time
9.1.1.2
Protecting CHG and LD
9.1.1.3
Protecting CHG FET
9.1.1.4
Using Load Detect for UV Fault Recovery
9.1.1.5
Temperature Protection
9.1.1.6
Adding Filter to Sense Resistor
9.1.1.7
Using a State Comparator in an Application
9.1.1.7.1
Examples
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Design Example
9.2.3
Application Curves
9.3
System Examples
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Documentation Support
12.1.1
Related Links
12.2
Receiving Notification of Documentation Updates
12.3
Support Resources
12.4
Trademarks
12.5
Electrostatic Discharge Caution
12.6
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
PW|20
MPDS362A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sluscm3k_oa
sluscm3k_pm
6
Pin Configuration and Functions
Figure 6-1
PW Package
20-Pin TSSOP
Top View