MAP3622 – 2-CH Average Current Control Buck Controller for LED Backlight
Datasheet Version 1.0
MAP3622
2-CH Average Cu...
MAP3622 – 2-CH Average Current Control Buck Controller for LED Backlight
Datasheet Version 1.0
MAP3622
2-CH Average Current Control Buck Controller for LED Backlight
General Description
Features
MAP3622 is a 2 channel average-mode current control buck controller for LED backlight application. It does not require an additional dimming
MOSFET and utilizes constant off-time control and average current control feedback without external loop compensation or high-side current sensing.
MAP3622 features ±1% CS
voltage accuracy and has dedicated Independent analog dimming input up to 3.3V. It can be powered from 8.5V ~ 18V supply.
MAP3622 provides
MOSFET DS short (FLT output), sense resistor short protection, SCP and UVLO.
MAP3622 is available 16 leads SOIC with Halogenfree (fully RoHS compliant).
8.5V to 18V Input
Voltage Range Average-Mode Current Control Mixed Programmable Constant Off-time Up to 3.3V Independent Analog Dimming 1% CS
Voltage Accuracy Independent Direct PWM Dimming Input Fault Output
-
MOSFET Drain-Source Short Short Circuit Protection Sense Resistor Short Protection UVLO 16 Leads SOIC Package with Halogen-free
Applications
High Brightness white LED backlighting for LCD TVs General LED lighting applications
Ordering Information
Part Number MAP3622SIRH
Top Marking
MAP3622
Ambient Temperature Range
-40℃ to +85℃
1
Typical Application
Package 16Leads SOIC
RoHS Status Halogen Free
VCC
MODE ADIM1 ADIM2 PWM1 PWM2
MAP3622 TOFF1 TOF...