Power Switch. G1135 Datasheet

G1135 Switch. Datasheet pdf. Equivalent

Part G1135
Description High Precision CC/CV Primary-Side PWM Power Switch
Feature G1135 High Precision CC/CV Primary-Side PWM Power Switch ANALOG PWM IC 1. General Description G11.
Manufacture Global Semiconductor
Datasheet
Download G1135 Datasheet

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G1135
G1135
High Precision CC/CV Primary-Side PWM Power Switch
ANALOG PWM IC
1. General Description
G1135 is a high performance offline PWM Power
switch for low power AC/DC charger and adaptor
application. It operates in primary side 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.
G1135 offers power on soft start control and
protection coverage with auto-recovery features
including Cycle-by-Cycle current limiting, VDD
OVP, VDD clamp and UVLO. Excellent EMI
performance is achieved with frequency jitter
technique.
Features
5% CV and CC Regulation at Universal
AC input
Primary-side Regulation Without TL431
and Opto-coupler
Built-in High-Voltage Power MOS
Programmable CV and CC Regulation
Adjustable Constant Current and Output
Power Setting
Built-in Secondary Constant Current
Control with Primary Side Feedback
Built-in Primary winding inductance
compensation
Programmable cable drop compensation
Built-in Leading Edge Blanking (LEB)
Power on Soft-start
Built-in adaptive current peak regulation
Cycle-by-Cycle Current Limiting
VDD Under Voltage Lockout with
Hysteresis (UVLO)
VDD OVP and VDD Clamp
Pb-free SOP7 & DIP7
Applications
Cell Phone Charger
Digital Cameras Charger
LED Driver
Small Power Adaptor
Auxiliary Power for PC, TV etc.
Linear Regulator/RCC Replacement
Fig.1. Typical CC/CV Curve
G1135 is offered in both SOP7 and DIP7
package.
Global Semiconductor Co., LTD.
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G1135
G1135
High Precision CC/CV Primary-Side PWM Power Switch
2. Products Information
2.1 Pin configuration
(a) DIP7 Package
(b) SOP7 Package
Fig.2. G1135 Pin Configuration
Pin Name
VDD
COMP
INV
CS
DRAIN
GND
I/O Description
P Power Supply
I Loop Compensation for CV Stability
The Voltage feedback from auxiliary winding. Connected to
resistor divider from auxiliary winding reflecting output
I
voltage. PWM duty cycle is determined by EA output and
current sense signal at pin 4.
Current sense input. Connected to primary current sensing
I
resistor.
HV MOSFET Drain Pin. The Drain pin is connected to the
O
primary lead of the transformer
P Ground
2.2 Output Power Table
Product
G1135P
G1135F
Package
DIP7
SOP7
85~264VAC
Adapter1
12W
8W
85~264VAC
Open Frame
15W
10W
Notes:
1. Maximum practical continuous power in an Adapter design with sufficient drain pattern as a heat sink, at
50ambient. Higher output power is possible with extra added heat sink or air circulation to reduce
thermal resistance.
Rev. 2.0
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