HGSEMI

OB2269N

60kHz~70kHz 12V~23V Flyback DIP-8 AC DC Converters, Offline Switchers

DIP-8RoHSActive

Manufacturer: HGSEMI
Manufacturer part #: OB2269N
Store part #: C42421629
Package / case: DIP-8
Category: AC DC Converters, Offline Switchers
Packaging: Tube-packed

Datasheet (PDF)

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1,925 in stock

#C42421629

Stock & price checked 6 days ago

Quantity	Unit price	Pack price
5+	₹24.16	₹120.80
50+	₹21.19	₹1,059.50
150+	₹19.92	₹2,988.00
500+	₹18.34	₹9,170.00
2,500+	₹17.64	₹44,100.00
5,000+	₹17.21	₹86,050.00

Quantity (min 5, multiples of 5)

5 × ₹24.16

₹120.80

excl. GST

₹142.54 incl. 18% GST

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Dispatch in 7–10 working days
GST invoice with every order
Standard pack: 50 per tube

OB2269N

₹120.80 for 5 + GST

Specifications

Operating Temperature: -20℃~+85℃
Frequency - Switching: 60kHz~70kHz
Voltage - Supply: 12V~23V
Topology: Flyback
Features: Light load efficient mode;EMI optimization (spread spectrum);Leading edge blanking;Slope compensation;Under-voltage lockout;Over Voltage Protection;Overtemperature protection (OTP);Over Current Protection;Under Voltage Protection
Duty Cycle(Max): 80%
Working Mode: PWM Modulation
Feedback System: Secondary-Side Feedback

Packaging & compliance

RoHS: RoHS
Lifecycle: Active
Packaging: Tube-packed
Standard pack: 50 / Tube
Sold per: Piece
Minimum order: 5 (multiples of 5)
Unit weight: 1.08 g

Overview

The OB2269 integrates a highly integrated current-mode PWM control IC, optimized for high-performance, low standby power, and cost-effective offline flyback converter applications. During normal operation, the PWM switching frequency is externally programmable and can be fine-tuned within a narrow range. Under no-load or light-load conditions, the IC operates in an extended "Burst Mode" to minimize switching losses, achieving lower standby power consumption and higher conversion efficiency. The low startup current and low operating current of VDD contribute to reliable power-on startup and low standby design. Internal slope compensation improves large-signal stability and reduces subharmonic oscillation that may occur at high PWM duty cycle outputs. Leading-edge blanking on the current sense input eliminates signal glitches caused by snubber diode reverse recovery, helping to reduce the number of external components and system cost in applications. The OB2269 provides comprehensive protection features with automatic self-recovery, including cycle-by-cycle current limiting (OCP), overload protection (OLP), VDD undervoltage lockout (UVLO), over-temperature protection (OTP), and overvoltage protection (OVP). The gate drive output is clamped at 18V to protect the power MOSFET. In the OB2269, the OCP threshold slope is internally optimized to achieve constant output power limiting over the universal AC input range. Excellent EMI performance is achieved through internal frequency dithering and soft-switching control of the totem-pole gate drive output. Tonal energy below 22KHz is minimized in the design, eliminating audio noise. The OB2269 is available in SOP-8, MSOP-8, and DIP-8 packages.

Applications

Offline AC/DC flyback converter
AC/DC adapter
Set-top box power supply
Auxiliary power supply
Open-frame switching power supply

Key features

Extended burst mode control for improved efficiency and minimum standby power design
Soft-start at power-up to reduce MOSFET stress
Audio-noise-free operation
Externally programmable PWM switching frequency
Low VDD startup and operating current
Frequency dithering for minimized EMI
Leading-edge blanking for current sensing
Internal synchronous slope compensation
Low VIN/VDD startup current (6.5uA) and low operating current (2.0mA)
Comprehensive protection with auto-recovery - VDD undervoltage lockout with hysteresis (UVLO)
Cycle-by-cycle overcurrent protection
Overload protection (OLP)
Over-temperature protection (OTP)
VDD overvoltage protection (OVP)
Available in DIP-8, SOP-8, MSOP-8 packages