: Approximately 1A in standard printer power supply applications.
If Pin 4 (VCC) doesn't reach its "startup threshold" (often due to a failed startup resistor), the IC won't turn on.
– The reference ground terminal for the internal control circuitry.
| Parameter | Symbol | Min | Typ | Max | Unit | Description | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | | VDS | - | - | 30 | V | Maximum voltage across the internal MOSFET | | Drain Current | ID | - | - | 8 | A | Continuous drain current capability | | Gate-Source Voltage | VGS | -20 | - | +20 | V | Allowable voltage at the gate terminal | | On-Resistance | RDS(on) | - | 0.0025 | - | Ω | Very low resistance when the switch is on, ensuring high efficiency | | Input Capacitance | Ciss | - | 5 | - | pF | Extremely low, allowing for high switching speeds | | Output Power Range | Pout | 20 | - | 30 | W | Suitable power delivery for small to medium electronics | | Switching Frequency | fsw | - | - | - | kHz | Typical for PWM topologies (exact value in the datasheet) |
Check the feedback loop (Pin 7) and capacitor associated with the Soft-Start (Pin 8). str-z2062 datasheet
When line voltage is introduced, the primary rectifier bridge charges the main bulk filter capacitor to roughly
The STR-Z2062 is most famously known for its role in the power supply boards of popular laser printers. It is a critical component for repairing "dead" printers or boards with fluctuating power. Garg Computers HP LaserJet Series : M1005, 1200, 1150, 1300, 3015, 3020, 3030, and 3380. Canon Series : LBP 1210. Replacement and Repair Notes Compatibility
: Built-in Overcurrent Protection (OCP), Overvoltage Protection (OVP), and Thermal Shutdown (TSD).
: Determine how you plan to use the STR-Z2062. This could be in a power supply, a motor control system, or another application. : Approximately 1A in standard printer power supply
When a printer fails to turn on or experiences fluctuating power, the is often the culprit.
Features circuitry to prevent voltage drops or overload, ensuring stable power delivery to sensitive printer electronics. Typical Applications
Check the high-value startup resistors connected from the main DC filter capacitor to Pin 4. These often fail open-circuit.
: Pulse-Width Modulation (PWM) with current-mode control | Parameter | Symbol | Min | Typ
A full schematic can be found in the official STR-Z2062 datasheet (pages 7-9).
: When an IC like this fails, it's common for nearby resistors (like R502) or capacitors (like C510) to be damaged as well.
Typically rated for power envelopes up to 100 Watts within closed frames. Typical Pinout Profile and Block Layout
STR-Z2062 SANKEN Integrated Circuits (ICs) - Jotrin Electronics