DESCRIPTION
The LT®3796 is a DC/DC controller designed to regulate a constant-current or constant-voltage and is ideal for driving LEDs. It drives a low side external N-channel power MOSFET from an internal regulated 7.7V supply. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Two ground referred voltage FB pins serve as the input for several LED protection features, and also allow the converter to operate as a constant-voltage source.

FEATURES
3000:1 True Color PWM™ Dimming
Wide Input Voltage Range: 6V to 100V
Current Monitoring Up to 100V
High Side PMOS Disconnect and PWM Switch Driver
Constant-Current and Constant-Voltage Regulation
Dual Current Sense Amplifiers with Reporting
C/10 Detection for Battery and SuperCap Charging
Linear Current Sense Threshold Programming
Short-Circuit Protection
Adjustable Frequency: 100kHz to 1MHz
Frequency Synchronization
Programmable Open LED Protection with VMODE Flag
Programmable Undervoltage Lockout with Hysteresis
Soft-Start with Programmable Fault Restart Timer
Low Shutdown Current: <1μA
Available in 28-Lead TSSOP Package

APPLICATIONS
High Power LED, High Voltage LED
Battery and SuperCap Chargers
Accurate Current Limited Voltage Regulators