Chipower CE9401
The CE9401 provides a constant current drive for 1W or 3W LED applications. It is a high efficiency boost converter that operates from 1 or 2 NiMH or alkaline cells and generates 350mA/1A of constant current with up to 4V of compliance. The LED current can be programmed by the external current sense resistor, RSET, connected between the feedback pin (FB) and ground.| Part No. | CE9401 |
|---|---|
| Datasheet | CE9401 Download |
| Manufacturer | Chipower |
| Description | Single Cell 350mA / Dual Cell 1A LED Driver |
| Buy | Stock & Price |
FEATURES
:● 350mA/1A Constant Current Output
● 2.8V to 4V Output Compliance
● 1- or 2-Cell NiMH or Alkaline Input
● Low RDS(ON) : 100mΩ (Typ.)
● 95mV Feedback Voltage
● 1MHz Switching Frequency
● Uses small, Low Profile External Components
● Ceramic Capacitor Compatible
● LED Power Efficiency: up to 90%
● Current Accuracy: 5% (VIN=3.6V to 1.8V@VF=3.7V)
● Low Start-Up Voltage: 0.9V(ILED =270mA)
● Low Hold Voltage:0.75V(ILED =200mA)
● Open LED Output Limited to 5.1V
● Over-Current Protection
● Over Temperature Protection
● Pb-Free Package
●
APPLICATIONS
:● Portable Lighting
● Rechargeable Flashlight
● ORDER INFORMATION Operating free air temperature range Package -40~+85℃ SOT-23-6 -40~+85℃ SOP8-PP -40~+85℃ DFN3X3-10 V0.7 1(23) Device No. CE9401AE CE9401AES CE9401AFC10 Single Cell 350mA, Dual Cell 1A LED Driver
● TYPICAL APPLICATION CIRCUITS CE9401 Series Figure1. Single Cell Minimum Component LED Driver Figure 2. Efficiency vs VIN at VLED=3.5V
● PIN CONFIGURATION: SOT-23-6 Top View V0.7 SOP8-PP Top View 2(23) DFN3X3-10 Top View Single Cell 350mA, Dual Cell 1A LED Driver CE9401 Series SOT-23-6 PIN NO.
