High Efficiency, Synchronous 3A Buck Charger for 1 cell Li-ion Battery with NVDC Power Path Management
SC89601D
The SC89601D is a 1.5MHz highly integrated switch-mode buck charger for 1 cell Li-ion battery applications and NVDC system power path management, which separates the system load and charge current, also the system can power up with deep depletion battery. System can get the power from VBUS, VBAT or both. It supports 3.9-13.5V input voltage, up to 3A charging current and provides battery charge management functions including trickle charge, constant current charge, constant voltage charge, charge termination, auto recharge and charging status indication. The SC89601D supports flexible charge current option, the user can program the current and all other charger spec by I2C. With the charger management function, the IC can be used to charge 1 cell Li-ion battery. The SC89601D supports USB OTG with up to 1.2A output with PFM/PWM mode. Meanwhile, the SC89601D supports USB BC1.2 and non-standard adapters. The SC89601D supports input current and voltage limit, input under voltage and over voltage protections, internal cycle by cycle current limit, battery short circuit protection, and output over voltage protection. It also offers charging safety timer and over temperature protection to ensure safety under different abnormal conditions. The SC89601D integrated all MOSFETs, current sensing, loop compensation and I2C interface. The SC89601D is available in QFN(24)-4*4 package.
The SC89601D is a 1.5MHz highly integrated switch-mode buck charger for 1 cell Li-ion battery applications and NVDC system power path management, which separates the system load and charge current, also the system can power up with deep depletion battery. System can get the power from VBUS, VBAT or both. It supports 3.9-13.5V input voltage, up to 3A charging current and provides battery charge management functions including trickle charge, constant current charge, constant voltage charge, charge termination, auto recharge and charging status indication. The SC89601D supports flexible charge current option, the user can program the current and all other charger spec by I2C. With the charger management function, the IC can be used to charge 1 cell Li-ion battery. The SC89601D supports USB OTG with up to 1.2A output with PFM/PWM mode. Meanwhile, the SC89601D supports USB BC1.2 and non-standard adapters. The SC89601D supports input current and voltage limit, input under voltage and over voltage protections, internal cycle by cycle current limit, battery short circuit protection, and output over voltage protection. It also offers charging safety timer and over temperature protection to ensure safety under different abnormal conditions. The SC89601D integrated all MOSFETs, current sensing, loop compensation and I2C interface. The SC89601D is available in QFN(24)-4*4 package.
Product Details
Design / Development
Technical Documentation
Applications
Product Details
Design / Development
Parameters
Value
EVM Model
SC89601D EVM
Key Part Number
SC89601D
Input Voltage
3.9V-13.5V
Number of Battery Sections
1
Maximum charging current
3A
Max OTG Discharging Current
1.2A
Technical Documentation
Parameter NameParameter Value
VIN range3.9-13.5V
Abs. VIN (max)21V
Battery Cell #1s
MOSInt
Charge Current (max)3A
TopologyBuck
OTG Voltage Range3.9-5.4V
Prog. OTG VoltageI2C prog
Max. OTG Current1.2A
Parameter NameParameter Value
Rec’d app. Power Level15W typ. For 1S
I2C Ctrl√
Prog. IlimI2C&Res prog
NTC√ Jeita
Safety Timer√
Power√
FeaturesThermal Regulation
OTG output from VBUS
/Qon
PackageQFN4x4
Parameter NameParameter Value
VIN range3.9-13.5V
Abs. VIN (max)21V
Battery Cell #1s
MOSInt
Charge Current (max)3A
TopologyBuck
OTG Voltage Range3.9-5.4V
Prog. OTG VoltageI2C prog
Max. OTG Current1.2A
Rec’d app. Power Level15W typ. For 1S
I2C Ctrl√
Prog. IlimI2C&Res prog
NTC√ Jeita
Safety Timer√
Power√
FeaturesThermal Regulation
OTG output from VBUS
/Qon