BQ24170RGYR ,1.6-MHz Synchronous Switch-Mode Li-Ion and Li-Polymer Stand-alone Battery Charger 24-VQFN -40 to 85Features – ±4% Input Current Regulation• <15-μA Battery Current With Adapter Removed1• 1.6-MHz Sync ..
BQ24170RGYT ,1.6-MHz Synchronous Switch-Mode Li-Ion and Li-Polymer Stand-alone Battery Charger 24-VQFN -40 to 85features Dynamic Power Management (DPM) to reduce the charge current when the input powerlimit is r ..
BQ24171RGYR ,JEITA Compliant Stand-Alone Switch-Mode Li-Ion and Li-Polymer Battery Charger 24-VQFN -40 to 85Features 2 Applications1• JEITA-Compatible Battery Temperature Sensing • Tablet PCs• 1.6-MHz Synchr ..
BQ24172RGYR ,1.6-MHz Synchronous Switch-Mode Li-Ion and Li-Polymer Stand-alone Battery Charge 24-VQFN -40 to 85Features – ±4% Input Current Regulation• <15-μA Battery Current With Adapter Removed1• 1.6-MHz Sync ..
BQ24185YFFR ,Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance 25-DSBGA -40 to 85FEATURES • Integrated Power FETs for Up to 1.5A ChargeRate2• Charge Faster than Linear Chargers Fro ..
BQ24192IRGER ,I2C Controlled 4.5A Single Cell USB/Adaptor Charger w/ Narrow VDC Power Path 24-VQFN -40 to 85Features• High Efficiency 4.5-A Switch Mode Charger – Integrated Current Sensing– 92% Charge Effici ..
BUK9608-55A ,N-channel TrenchMOS logic level FET
BUK9608-55A ,N-channel TrenchMOS logic level FETApplications 12 V and 24 V loads Motors, lamps and solenoids Automotive and general purpose powe ..
BUK9608-55A ,N-channel TrenchMOS logic level FET
BUK9609-40B ,TrenchMOS (tm) logic level FETApplications■ Automotive systems ■ 12 V loads■ Motors, lamps and solenoids ■ General purpose power ..
BUK9609-55A ,TrenchMOS(TM) logic level FETApplications■ Automotive and general purpose power switching:◆ 12 V and 24 V loads◆ Motors, lamps a ..
BUK9609-75A ,N-channel TrenchMOS logic level FET
BQ24170RGYR-BQ24170RGYT
1.6-MHz Synchronous Switch-Mode Li-Ion and Li-Polymer Stand-alone Battery Charger
L:3.3mH
12-VAdapter
VBATSW
0.047m
ACP
CIN
2.2µ
ISET
CMSRC
PVCCACN
RIN
BATDRV0.1m
C11: 0.1µ
C12: 0.1µ
C4:10µ
R12
4.02 k Q2R14
1 k
0.1m32.4k
AVCC
ACSET
100k
22.1k
VREF
VBAT
bq24170 : 10 mAC
R11
4.02 k:10 mSR
VREF
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bq24170, bq24172SLUSAD2C –NOVEMBER 2010–REVISED APRIL 2015
bq2417x 1.6-MHz Synchronous Switched-Mode Li-Ion and Li-Polymer Stand-Alone Battery
Charger With Integrated MOSFETs and Power Path Selector Features – ±4% Input Current Regulation <15-μA Battery Current With Adapter Removed 1.6-MHz Synchronous Switched-Mode Charger
with 4-A Integrated N-MOSFETs • <1.5-mA Input Current With Adapter Present and
Charge Disabled• Upto 94% Efficiency 30-V Input Rating with Adjustable Overvoltage
2 ApplicationsProtection Tablet PCs– 4.5-Vto 17-V Input Operating Voltage Range Portable Data Capture Terminals• Battery Charge Voltage Portable Printers– bq24170: 1-,2-,or 3-Cell with 4.2 V/Cell Medical Diagnostics Equipment– bq24172: Adjustable Charge Voltage Battery Bay Chargers• High Integration Battery Backup Systems– Automatic Power Path Selector Between
Adapter and Battery
3 Description– Dynamic Power Management The bq2417x deviceisa highly integrated stand-– Integrated 20-V Switching MOSFETs alone Li-Ion and Li-Polymer switched-mode battery Integrated Bootstrap Diode charger with two integrated N-channel power
MOSFETs. The device offersa constant-frequency– Internal Digital Soft Start synchronous PWM controller with high-accuracy• Safety regulation of input current, charge current, and Thermal Regulation Loop Throttles Back voltage. The bq2417x closely monitors the battery
Currentto LimitTJ= 120°C pack temperatureto allow charge onlyina preset
temperature window. The bq24170 charges one, two,– Thermal Shutdown or three cells (selected by CELL pin), and the– Battery Thermistor Sense Hot/Cold Charge bq24172is adjustable forupto three series Li+ cells.Suspend and Battery Detect Adjustable Input Overvoltage Protection
Device Information(1)– Cycle-by-Cycle Current Limit• Accuracy– ±0.5% Charge Voltage Regulation
(1) Forall available packages, see the orderable addendumat– ±4% Charge Current Regulation
the endofthe data sheet.
Typical Application Schematic
