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TOP204YAI 3 Terminal Off-Line PWM Switch IC Power Integrations

TOP204YAI 3 Terminal Off-Line PWM Switch IC Power Integrations

Manufacturer: Power Integrations
Part Number: TOP204YAI
Package: TO220
Number Leads/Terminals: 3

Price: $11.99
23 available for immediate delivery
Code: T600APF10
Weight: 0.07oz ONZ

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Additional Information

3 Terminal Off-Line PWM Switches ICs
Pulse Width Modulator
TOPSwitch® Family

An off-line switched mode control system needs all of the functions that are included in the TOP207YAI. It has a high voltage N-channel power MOSFET with controlled turn-on gate driver, voltage mode PWM controller with integrated 100 kHz oscillator, high voltage start-up bias circuit, bandgap derived reference, bias shunt regulator/error amplifier for loop compensation and fault protection circuitry. Having all these in one component reduces cost,the number of components needed, along with the size and weight.

Features:
- Built-in start-up and current limit reduce DC losses
- 70% maximum duty cycle minimizes conduction losses
- Low capacitance 700 V MOSFET cuts AC losses
- Only one external capacitor needed for compensation, bypass and start-up/auto-restart functions
- On-chip latching thermal shutdown protects the entire system against overload
- Implements Buck, Boost, Flyback or Forward topology
- Easily interfaces with both opto and primary feedback
- Supports continuous or discontinuous mode of operation

Typical Electrical Characteristics (Source = 0V, TJ=-40 to 125°C unless otherwise noted):

CONTROL FUNCTIONS
Output Frequency (IC = 4 mA, Tj = 25°C): 100 kHz
PWM Gain (IC = 4 mA, Tj = 25°C): -16%/mA
External Bias Current: 2.5mA
Dynamic Impedance (IC = 4 mA, Tj = 25°C): 15Ω

SHUTDOWN/AUTO-RESTART
Control Pin Charging Current (TJ = 25°C, VC = 0V): -1.9mA
Auto-restart Threshold Voltage (S1 Open): 5.7V
Auto-restart Frequency (S1 Open): 1.2Hz

CIRCUIT PROTECTION
Self-protection Current Limit (di/dt = 420 mA/ms, Tj = 25°C): 1.88A to 2.63A
Current Limit Delay (IC = 4 mA): 100ns
Thermal Shutdown Temperature (IC = 4 mA): 145°C
Latched Shutdown Trigger Current: 45mA
Power-up Reset Threshold Voltage (S2 Open): 3.3V

OUTPUT
ON-State Resistance (ID = 300 mA, Tj = 25°C): 2.6Ω
OFF-State Current (Device in Latched Shutdown, IC = 4 mA, VDS = 560 V, TA = 125°C): 500uA max.
Breakdown Voltage (Device in Latched Shutdown, IC = 4 mA, ID = 500 mA, TA = 25°C): 700V min.

SUPPLY
Drain Supply Voltage: 36V min.
Shunt Regulator Voltage (IC = 4 mA): 5.8V

Manufactured by: Power Integrations Inc
Part Number: TOP204YAI

Full Datasheet: TOP204YAI PWM Switch IC