NJU7620 Series
Step-Up/Flyback Switching Regulator IC with Constant Current Control

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ECAD Model: Learn more
  • Standard
  • RoHS
Package1
Package1

Description

The NJU7620 is a low voltage operation high-speed switching regulator control IC for step-up and flyback converter, with a constant current control. It incorporates a totem pole output, which can drive an external MOS-FET easily. It also incorporates error amplifier and current sense amplifier, which can allow the constant voltage/current control for output voltage. Therefore the NJU7620 is suitable for a LED driving and other CCCV applications up to 10W.The NJU7620 is available in a small and thin 8-lead MSOP(TVSP) package.

Spec

Standard
Input Voltage Range 2.2 V to 8 V (9 V)
Operating Temperature Range -40°C to 85°C
Supply Current Typ. 800 µA
Output Voltage Range 2.2 V to - V
Output Voltage Accuracy ± 1.5 %
Oscillator Frequency 300kHz to 1MHz
Maximum Duty Cycle 90% typ.
Package MSOP8(TVSP8)
Control PWM switching control
Function Soft-Start Function Internal (16ms typ. or adjustable)
Dead Time Control
Constant Current Control

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Protections / Functions

TSD ILX OCP OVP UVLO OVLO Reverse Shutdown Soft Start SSCG PGOOD Auto Discharge Anti-ringing Sequencing Max Duty Ext. Phase LED Adjust

Functional Description

TSD Thermal Shutdown Function
ILX LX Current Limit Function
OCP Overcurrent Protection
OVP Overvoltage Protection
UVLO Undervoltage Lockout Protection
OVLO Overvoltage Lockout Protection
Reverse Reverse Current Protection Circuit
Shutdown Shutdown Function
Soft Start Soft Start Function
SSCG Spread Spectrum Clock Generator Function
PGOOD Power Good Output
Auto Discharge Auto Discharge Function
Anti-ringing Anti-ringing Switch Function
Sequencing Start-up Sequencing Control
Max Duty Maximum Duty Cycle
Ext. Phase Externally Adjustable Phase Compensation
LED Adjust LED High-speed Dimming Control

Functional Description

TSD Thermal Shutdown Function
ILX LX Current Limit Function
OCP Overcurrent Protection
OVP Overvoltage Protection
UVLO Undervoltage Lockout Protection
OVLO Overvoltage Lockout Protection
Reverse Reverse Current Protection Circuit
Shutdown Shutdown Function
Soft Start Soft Start Function
SSCG Spread Spectrum Clock Generator Function
PGOOD Power Good Output
Auto Discharge Auto Discharge Function
Anti-ringing Anti-ringing Switch Function
Sequencing Start-up Sequencing Control
Max Duty Maximum Duty Cycle
Ext. Phase Externally Adjustable Phase Compensation
LED Adjust LED High-speed Dimming Control

Search for similar products under conditions below.

Category:DC/DC Switching Regulators

Topology Boost,Fly-Back
VIN
min (V)
2.2
VIN
max (V)
8
VOUT
min (V)
2.2
ISS
(µA)
800

Technical Documents

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Quality & Packages

  • Refer to the datasheets for the details on the product.
  • The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.

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