STMicroelectronics STCC02-ED5

Overview

STCC02-ED5 from STMicroelectronics is a dedicated home appliance control circuit for microwave oven MCU-based systems, integrating 5 V ±10% voltage regulation, MCU reset with 6 ms programmable delay and 45 µs noise filtering, 30 µs filtered zero-voltage synchronization (ZVS), door-closed detection, dual 100 mA relay drivers (fan/magnetron), and a 17 mA buzzer driver - all in a DIP-16 package operating from 7–27 V input.

For engineers reviewing the STCC02-ED5 datasheet, STCC02-ED5 pinout, STCC02-ED5 application, or STCC02-ED5 equivalent, this device serves as a system-level analog/power interface IC that replaces discrete reset, ZVS, relay drive, and safety monitoring functions in microwave control modules - enabling compact, ESD-robust, IEC61000-4-compliant designs with reduced board area and solder joint count.

Technical Context

The STCC02-ED5 implements a thermally optimized 5 V linear regulator (±10% accuracy over −10 to +80 °C, 5–20 mA load) with internal overcurrent limiting and 1.25 V reference. Its reset circuit uses hysteresis (V_H = 4.25 V, V_L = 3.75 V) and external capacitor-programmable delay (T_UP = 6 ms @ C_UP = 47 nF).

The ZVS circuit generates AC-line-synchronized timing via SYN pin with 10–70 µs transition filtering and 0.4–0.9 V threshold; output falls on zero-crossing for NMI triggering. Door closed detection (CDD) provides redundant safety logic by conditioning DS input through 50 kΩ pull-down and spike suppression, feeding both MCU and magnetron enable logic (DS·IN2·FAN1̅).

Key Specifications

Pinout & Package

DIP-16 plastic dual-in-line package (20.0 × 8.5 mm, 3.3 mm height, 1.27 mm lead pitch), compliant with JEDEC MS-001, with tin-lead leads and 1 g unit weight.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar home appliance control applications.

Compared with STCC02-E, STCC02-ED5 offers identical performance but reflects updated ordering nomenclature and traceability; versus STVIP15, it delivers full system integration - reducing design risk, validation scope, and production cost in microwave control applications.

Availability

STCC02-ED5 is available at Aetrix Electronics and suitable for microwave oven power control, home appliance safety monitoring, and compact consumer electronics requiring stable component supply with long-term industrial availability.

Supply support for STCC02-ED5 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, and analog interface solutions for industrial, automotive, and consumer markets.

The STCC02 product line targets cost-sensitive, safety-critical home appliance control systems - integrating power, timing, and safety functions into single-package solutions to replace discrete implementations in microwave ovens and similar cooking appliances.

FAQ

What is the maximum allowable input voltage for continuous operation?

The absolute maximum VIN is 30 V per Table 2, but continuous operation is thermally limited. At 27 V input with 20 mA regulator load and active drivers, dissipation reaches 0.68 W. With R_th(j-a) = 100 °C/W and T_AMB ≤ 80 °C, junction temperature stays below 150 °C - confirming 27 V as the practical maximum for sustained use in ventilated enclosures.

How does the magnetron enable logic prevent unsafe operation?

The STCC02-ED5 enforces hardware-level magnetron activation only when three conditions are simultaneously true: door closed (DS high), fan running (FAN1 active), and MCU command asserted (IN2 high). This Boolean AND (DS·IN2·FAN1̅) is implemented in silicon - eliminating reliance on firmware execution and ensuring fail-safe shutdown within microseconds if any condition fails.

Can the ZVS output drive an MCU's NMI pin directly?

Yes. ZVS provides a clean, filtered, actively driven CMOS-compatible signal with 0.8×V_DD high level and 0.2×V_DD low level. Its 30 µs internal filter and guaranteed <115 µs total propagation delay (rising/falling) meet standard NMI setup/hold requirements for 8-bit and 16-bit MCUs without external conditioning.

Is external decoupling required on the VDD pin?

Yes. A minimum 10 µF low-ESR electrolytic capacitor must be placed within 5 mm of VDD and COM pins to stabilize the 5 V regulator under dynamic MCU load changes. Additional 100 nF ceramic capacitance is recommended in parallel to suppress high-frequency noise from ADC sampling and digital switching.