ISL9203

Features: • Pb-Free Available (RoHS Compliant)• Complete Charger for Single-Cell Li-ion Batteries• Very Low Thermal Dissipation• Integrated Pass Element and Current Sensor• No External Blocking Diode Required• 1% Voltage Accuracy• Programmable Current Limi...

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ISL9203 Picture
SeekIC No. : 004380702 Detail

ISL9203: Features: • Pb-Free Available (RoHS Compliant)• Complete Charger for Single-Cell Li-ion Batteries• Very Low Thermal Dissipation• Integrated Pass Element and Current Sensor...

floor Price/Ceiling Price

Part Number:
ISL9203
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/21

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Product Details

Description



Features:

• Pb-Free Available (RoHS Compliant)
• Complete Charger for Single-Cell Li-ion Batteries
• Very Low Thermal Dissipation
• Integrated Pass Element and Current Sensor
• No External Blocking Diode Required
• 1% Voltage Accuracy
• Programmable Current Limit up to 1.5A
• Charge Current Thermal Foldback
• Accepts Multiple Types of Adapters
• Guaranteed to Operate at 2.65V After Start Up
• Ambient Temperature Range: -20°C to 70°C
• Thermally-Enhanced DFN Packages



Application

• Handheld Devices including Medical Handhelds
• PDAs, Cell Phones and Smart Phones
• Portable Instruments, MP3 Players
• Self-Charging Battery Packs
• Stand-Alone Chargers
• USB Bus-Powered Chargers



Pinout

  Connection Diagram

Pin Descriptions
VIN (Pin1)
VIN is the input power source. Connect to a wall adapter.
FAULT (Pin 2)
FAULT is an open-drain output indicating fault status. This pin is pulled to LOW under any fault conditions. Any time a FAULT condition happens, it will reset the counter of the charger.
STATUS (Pin 3)
STATUS is an open-drain output indicating charging and inhibit states. The STATUS pin is pulled LOW when the charger is charging a battery. It will be forced to high impedence when the charge current drops to IMIN. This high
impedence mode will be latched until a recharge cycle or a new charge cycle starts.
TIME (Pin 4)
The TIME pin determines the oscillation period by connecting a timing capacitor between this pin and GND.The oscillator also provides a time reference for the charger.
GND (Pin 5)
GND is the connection to system ground.
EN (Pin 6)
EN is the enable logic input. Connect the EN pin to LOW to disable the charger or leave it floating to enable the charger.
V2P8 (Pin 7)
This is a 2.8V reference voltage output. This pin outputs a 2.8V voltage source when the input voltage is above POR
threshold, otherwise it outputs zero. The V2P8 pin can be used as an indication for adapter presence.
IREF (Pin 8)
This is the programming input for the constant charging current. It maintains at 0.8V when the charger is in normal
operation.
VSEN (Pin 9)
VSEN is the remote voltage sense pin. Connect this pin as close as possible to the battery pack positive connection. If
the VSEN pin is floating, its voltage drops to zero volt and the charger operates in the Trickle mode.
VBAT (Pin 10)
VBAT is the connection to the battery. Typically a 10F Tantalum capacitor is needed for stability when there is no
battery attached. When a battery is attached, only a 0.1F ceramic capacitor is required.



Specifications

Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to 7V
Output Pin Voltage (BAT, VSEN, V2P8) . . . . . . . . . . -0.3 to 5.5V
Signal Input Voltage (TIME, IREF). . . . . . . . . . . . . . -0.3 to 3.2V
Output Pin Voltage (STATUS, FAULT) . . . . . . . . . . . . . -0.3 to 7V
Charge Current . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . 1.6A
ESD Rating
Human Body Model (Per MIL-STD-883 Method 3015.7)  . .1500V
Machine Model (Per EIAJ ED-4701 Method C-111) . . . . . . .150V



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