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R7731AGE The R7731AGE is a PWM controller from Richtek, designed for offline flyback converter applications. It operates within a 12V to 25V supply voltage range.
Mfr Part #:

R7731AGE

Available from 2 distributors
Mfr Name: Richtek
Richtek
The R7731AGE is a PWM controller from Richtek, designed for offline flyback converter applications. It operates within a 12V to 25V supply voltage range.
✓ Total Stock: 26,182 pcs
$ Price Range: $0.75

R7731AGE Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
24,102 pcs
On Request
24102 pcs On Request 1 On Request On Request 21+ On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
2,080 pcs
On Request
2080 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

R7731AGE Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Duty Cycle
Fault Protection
Frequency
Halogen Free
Internal Switch(s)
Mounting Type
Operating Temperature
Output Isolation
SVHC Present
Supplier Device Package
Supply Voltage
Topology
Voltage
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R7731AGE Description

Short technical summary and product information.

The R7731AGE is a high-performance, low-cost current mode PWM controller with burst triple mode for green mode power saving. It integrates functions such as soft start, Under Voltage LockOut (UVLO), Leading Edge Blanking (LEB), Over Temperature Protection (OTP), and internal slope compensation. This controller is suitable for AC/DC power applications requiring higher efficiency and a low component count.

 

Key electrical specifications include a supply voltage range of 12V to 25V, a switching frequency of 65kHz, and a duty cycle of 75%. It features a very low start-up current of less than 30µA and a driver capability of ±200mA. The device offers multiple fault protections, including current limiting, over load, over temperature, and over voltage protection.

 

Packaged in a SOT-23-6 surface mount package, the R7731AGE operates within an ambient temperature range of -40°C to 85°C. Its topology is flyback with isolated output. The controller is designed to provide a cost-effective solution for various power applications.

 

Applications for the R7731AGE include adaptors, battery chargers, ATX standby power, set-top boxes, DVD and CD(R) players, TV/monitor standby power, and PC peripherals.

R7731AGE Quick Information

Product Type: PWM Controller
Canonical Name: R7731AGE PWM Controller
Subcategory: Offline Switchers

R7731AGE Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

R7731AGE Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

R7731AGE Features

  • Low start-up current under 30µA.
  • Integrated soft start and UVLO.
  • Burst triple mode for green operation.
  • Comprehensive fault protection features.
  • SOT-23-6 surface mount package.

R7731AGE Applications

  • Adaptors and battery chargers.
  • ATX standby power supplies.
  • Set-top boxes and DVD players.
  • TV and monitor standby power.
  • PC peripheral power supplies.

R7731AGE FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the R7731AGE?

The supply voltage range is 12V to 25V, with startup UVLO thresholds of 10V and 14V.

What package does the R7731AGE come in?

The R7731AGE is available in a SOT-23-6 surface mount package.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C.

What is the switching frequency of the R7731AGE?

The switching frequency is 65kHz.

What is the maximum duty cycle?

The maximum duty cycle is 75%.

What protection features does the R7731AGE include?

It includes current limiting, over load, over temperature, and over voltage protection.

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