AX2535 Datasheet PDF - AXElite
| Part Number | AX2535 | |
| Description | High Precision CC/CV Primary-Side PWM Power Switch | |
| Manufacturers | AXElite | |
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There is a preview and AX2535 download ( pdf file ) link at the bottom of this page. Total 12 Pages | ||
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AX2535
High Precision CC/CV Primary-Side PWM
Power Switch
GENERAL DESCRIPTION
AX2535 is a high performance offline PWM Power switch for low power AC/DC
charger and adapter applications. It operates in primary-side sensing and regulation.
Consequently, the photo-coupler and TL431 could be eliminated. Proprietary Constant
Voltage (CV) and Constant Current (CC) control is integrated as shown in the figure
below.
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.
AX2535 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 by frequency shuffling technique.
High precision constant voltage (CV) and constant current (CC) can be achieved by
AX2535.
VO
± 5%
IO
ICC
Fig.1. CC/CV control characteristic
Axelite Confidential Materials, do not copy or distribute without written consent.
1/12
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AX2535
ELECTRICAL CHARACTERISTICS (CONTINUOUS)
(TA=25°C, VDD=VDDG=16V, unless otherwise specified)
Characteristics
Symbol
Conditions
Min Typ Max Units
Frequency Section
IC Maximum Frequency
System Nominal Switch
Frequency
System Startup Frequency
FMAX (Note)
FNOR
FSTR INV=0V, Comp=5V
55 60 65 KHz
- 50 - KHz
- 14 - KHz
Frequency Shuffling Range ΔF/FREQ
Error Amplifier section
- +/-6 - %
Reference Voltage for EA
VREF
1.97 2 2.03 V
DC Gain of EA
Max. Cable Compensation
Current
Power MOSFET Section
MOSFET Drain-Source
Breakdown Voltage
On Resistance
Gain
ICOMP_MAX INV=2V, Comp=0V
BVDSS
RDS(ON)
Static, Id=0.4A
- 60 - dB
- 37.5 - uA
600 - - V
- 12 15 Ω
Note: FMAX indicates IC internal maximum clock frequency. In system application, the maximum operation
frequency of 60KHz nominal occurs at maximum output power or the transition point from CV to CC
APPLICATION CIRCUIT
AC + +
VO
NP NS + CO
+
VDD GND
COMP GND
INV DRAIN
CS DRAIN
RS
NAUX
5/12
Axelite Confidential Materials, do not copy or distribute without written consent.
Rev.1.0 Aug.02, 2011
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for AX2535 electronic component. |
| Information | Total 12 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ AX2535.PDF Datasheet ] | |
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