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Rohm Semiconductor Electronic Components Datasheet

BD99954MWV Datasheet

1 to 4-Cell Li-Ion Battery Manager

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1 to 4-Cell Li-Ion Battery Manager
For Application Processors
BD99954MWV, BD99954GW
General Description
Voltage Measurement for Thermistor.
BD99954 is a Battery Management LSI for 1-4 cell
Lithium-Ion secondary battery, and available in a 40pin
Bias voltage output for the external thermistor.
0.40 mm pitch 5.0 mm x 5.0 mm QFN package and small
41-ball 0.4mm pitch 2.6mm x 3.0mm Wafer-Level CSP
package which is designed to meet high degree demands
SMBus Interface (Clock up friendly I2C) for Host
communication
for space-constraint equipment such as Low profile
Notebook PC, Tablets and other applications.
Embedded OTPROM for initial settings
BD99954 provides a Dual-source Battery Charger, two
port BC1.2 detection and a Battery Monitor with several
Packages
alarm(INT#, PROCHOT#) outputs
Pitch W
xD
xH
Features
Dual-source Battery Charger
UQFN040V5050
UCSP55M3C
6 x 7balls
0.4mm 5.0mm x 5.0mm x 1.0mm
0.4mm 2.6mm x 3.0mm x 0.62mm
High efficiency Step-Up/Down switching charger for
1-4 cell Li-Ion/Li-poly battery
Two separate input sources for USB-VBUS and DC
adapter.
Two port BC1.2 detectors.
JEITA compliant charging profile
Programmable parameters for Preconditioning, Pre-
charge current, and Fast-charge current
Programmable charging voltage
UQFN040V5050
UCSP55M3C
Programmable charge current
Programmable Switching Frequency: 600kHz to
1.2MHz
Support USB BCS 1.2, ACA, ID pin, OTG
USB-VBUS Over Voltage Protection
Over Voltage Battery Protection
Battery Short Circuit Detection
Applications
Ultrabook
Notebook PC
Ultra-mobile PC
Tablet PC
Power Path Management with charge pump gate
driver
Structure
Flexibility power path control
Reverse Buck/Boost Option for USB/USB-PD
Silicon Monolithic Integrated Circuit
Bias voltage output for the external thermistor
Line up matrix
PMON output
Parts No.
Package
PROCHOT# output
Support Inhibit / Autonomous Charging
BD99954MWV
UQFN040V5050
Battery Learn Function
BD99954GW
UCSP55M3C
Input Operating Range: 3.8V to 25V
* Product structure: Silicon monolithic integrated circuit.
Copyright: 2017 ROHM Co., Ltd. All rights reserved.
http://www.rohm.com/
TSZ22111-14-001
** This product is not designed to protect against radioactive rays.
TSZ02201-0B4B0A700040-1-2
1/127
18. Jul. 2017, Rev.001


Rohm Semiconductor Electronic Components Datasheet

BD99954MWV Datasheet

1 to 4-Cell Li-Ion Battery Manager

No Preview Available !

BD99954MWV, BD99954GW
Datasheet
Contents
Notation ....................................................................................................................................................................3
Reference .................................................................................................................................................................3
1. INTRODUCTION ................................................................................................................. 4
2. SIGNAL DESCRIPTION ...................................................................................................... 5
3. PIN CONFIGURATION ........................................................................................................ 6
4. ABSOLUTE MAXIMUM RATING ........................................................................................ 7
5. THERMAL RESISTANCE (NOTE 1) ........................................................................................ 7
6. RECOMMENDED OPERATING CONDITION ..................................................................... 7
7. FUNCTION DESCRIPTIONS............................................................................................... 8
7.1. Block Diagram ............................................................................................................................................8
7.2. External Characteristics for Battery Charger ..........................................................................................9
7.3. DC Input & Over Voltage Protection (OVP) ............................................................................................10
7.4. USB Detection...........................................................................................................................................11
7.5. DC/DC Converter ......................................................................................................................................12
7.6. Charger ......................................................................................................................................................14
7.7. Reverse DC/DC Converter .......................................................................................................................16
7.8. 12-bit ADC .................................................................................................................................................17
7.9. Power On ...................................................................................................................................................18
8. CONTROL SPECIFICATION ............................................................................................. 20
8.1. SMBus Communication ...........................................................................................................................20
8.2. SMBus Protocols......................................................................................................................................20
8.3. Command Code ........................................................................................................................................22
8.4. Battery Charger Commands Description...............................................................................................26
8.5. Extended Commands Description ..........................................................................................................29
8.6. Resister Default Value............................................................................................................................115
9. I/O EQUIVALENT CIRCUIT DIAGRAM .......................................................................... 118
10. ORDERING INFORMATION............................................................................................ 121
11. MARKING DIAGRAMS ................................................................................................... 121
12. PHYSICAL DIMENSION TAPE AND REEL INFORMATION .......................................... 122
13. OPERATIONAL NOTES .................................................................................................. 124
* Product structure: Silicon monolithic integrated circuit.
Copyright: 2017 ROHM Co., Ltd. All rights reserved.
http://www.rohm.com/
TSZ22111-14-001
** This product is not designed to protect against radioactive rays.
TSZ02201-0B4B0A700040-1-2
2/127
18. Jul. 2017, Rev.001


Part Number BD99954MWV
Description 1 to 4-Cell Li-Ion Battery Manager
Maker ROHM
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BD99954MWV Datasheet PDF






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