PWM Control Type DC/DC Converter IC for AC/DC Driver - BD7673AG

BD7673AG is a PWM controller type DC/DC converter for AC/DC that provides an optimum system for all products that requires an electrical outlet. This product supports both isolated and non-isolated devices. IC enables simple design of low-power electrical converters. With switching MOSFET and current detection resistor as external devices, it enables more freedom in design. Since the peak current control is utilized, peak current is controlled in each cycle, application excels wide bandwidth and transient response. BD7673AG includes various protective functions such as soft start function, burst unction, per-cycle over current limiter, VCC overvoltage protection and overload protection. An external latch pin (COMP pin) is provided, so that latch stopping (OFF) can be set by external signals. This function is available as overheating protection and over output voltage protection. The PWM switching frequency is fixed at 65 kHz. A frequency hopping function is included which contributes to low EMI.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number
Unit Quantity
Minimum Package Quantity
Packing Type
BD7673AG-GTR Active SSOP6 3000 3000 Taping Yes
Controller Type PWM
Vin1(Min.)[V] 8.5
Vin1(Max.)[V] 25.0
SW frequency(Max.)[KHz] 65.0
Vcc OVP Latch
Channel 1
Light Load mode Yes
Soft Start Yes
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
  •  ・ PWM frequency of 65kHz
     ・ PWM current mode method
     ・ Low circuit current when UVLO is ON
     (12μA at VCC=12V)
     ・ Low circuit current without load
    (Burst operation when load is light)
     ・ Built-in SW frequency hopping function
     ・ 250nsec leading-edge blanking
     ・ VCC UVLO / OVP
     ・ Per-cycle over current protection circuit
     ・ Soft start
     ・ Output overload protection (latch protection)
     ・ External latch function for COMP pin
     (Over heating protection function)
Other New/Updated Products Relating to Power Management
PART NUMBER Product Name Package Datasheet Distribution Inventory
BD7672BG PWM Control Type DC/DC Converter IC for AC/DC Driver SSOP6   Buy Sample
BD7679G PWM Control Type DC/DC Converter IC for AC/DC Driver SSOP6   Buy Sample
New Products:
Technical Data
Application Note

Thermal Resistance