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G1132A

Global Semiconductor
Part Number G1132A
Manufacturer Global Semiconductor
Description DIGITAL PWM
Published Apr 14, 2019
Detailed Description G1132A High Precision CC/CV Primary Side PWM Controller ANALOG PWM IC 1. General Description G1132A is a high perform...
Datasheet PDF File G1132A PDF File

G1132A
G1132A

Overview
G1132A High Precision CC/CV Primary Side PWM Controller ANALOG PWM IC 1.
General Description G1132A is a high performance offline PWM Power switch for low power AC/DC charger and adaptor applications.
It operates in primary-side sensing and regulation.
Consequently, Opto-coupler and TL431 could be eliminated.
Proprietary Constant Voltage (CV) and Constant Current (CC) control is integrated as shown in the Fig.
1.
In CC control,the current and output power setting can be adjusted externally by the sense resistor RS at CS pin.
In CV control, multi-mode operations are utilized to achieve high performance and high efficiency.
In addition, good load regulation is achieved by the built-in cable drop compensation.
Device operates in PFM in CC mode as well at large load condition and it operates in PWM with frequency reduction at light/medium load.
G1132A offers power on soft start control and protection coverage with auto-recovery features including Cycle-by-Cycle current limiting, VDD OVP, ...


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