BQ25606 Datasheet, PDF (1/43 Pages) Texas Instruments – Standalone 3.0-A, Single Cell Battery Charger With 40V Over Voltage Protection Controller

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bq25606
bq25606 Standalone 3.0-A, Single Cell Battery Charger
With 40V Over Voltage Protection Controller
SLUSCK6 – MAY 2017
1 Features
•1 High-Efficiency, 1.5-MHz, Synchronous Switch-
Mode Buck Charger
– 92% Charge Efficiency at 2 A from 5-V Input
– Optimized for USB Voltage Input (5 V)
• Supports USB On-The-Go (OTG)
– Boost Converter With Up to 1.2-A Output
– 92% Boost Efficiency at 1-A Output
– Accurate Constant Current (CC) Limit
– Soft-Start Up To 500-µF Capacitive Load
– Output Short Circuit Protection
• Single Input to Support USB Input and High
Voltage Adapters
– Support 3.9-V to 13.5-V Input Voltage Range
With 20-V Absolute Maximum Input Voltage
Rating
– Maximum Power Tracking by Input Voltage
Limit Up to 4.6 V (VINDPM)
– VINDPM Threshold Automatically Tracks
Battery Voltage
– Auto Detect USB SDP, DCP and Non-
Standard Adaptors
• 200nS Fast Turn-Off of Optional External
OVPFET Standing Input Voltage Up to 40V
• High Battery Discharge Efficiency With 19.5-mΩ
Battery Discharge MOSFET
• Narrow VDC (NVDC) Power Path Management
– Instant-On Works with No Battery or Deeply
Discharged Battery
– Ideal Diode Operation in Battery Supplement
Mode
• High Integration Includes All MOSFETs, Current
Sensing and Loop Compensation
• 58-µA Low Battery Leakage Current with System
Voltage Standby
• High Accuracy
– ±0.5% Charge Voltage Regulation
– ±6% at 1.2-A and 1.8-A Charge Current
Regulation
– ±5% at 0.5-A, 1.2-A and 1.8-A Input Current
Regulation
• Safety
– Battery Temperature Sensing for Charge and
Boost Mode
– Thermal Regulation and Thermal Shutdown
– Input UVLO and Overvoltage Protection
2 Applications
• EPOS, Portable Speakers, E-Cigarette
• Portable Internet Devices and Accessory
3 Description
The bq25606 device is a highly-integrated standalone
3.0-A switch-mode battery charge management and
system power path management device for single cell
Li-Ion and Li-polymer battery. The low impedance
power path optimizes switch-mode operation
efficiency, reduces battery charging time and extends
battery life during discharging phase.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
bq25606
VQFN (24)
4.00 mm × 4.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
USB
Optional
VBUS SW
ACDRV BTST
ILIM
ICHG
CE
SYS
BAT
I_{CHG REGN}
+
VSET
TS
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.