TYPE | DESCRIPTION |
---|
Mounting Style | Through Hole |
Number of Pins | 18 Pin |
Case/Package | DIP-18 |
Number of Outputs | 2 Output |
Rise Time | 300 ns |
Switching Frequency | 500 kHz |
Maximum Duty Cycle | 49 % |
Fall Time | 100 ns |
Operating Temperature (Max) | 150 ℃ |
Operating Temperature (Min) | -55 ℃ |
TYPE | DESCRIPTION |
---|
Product Lifecycle Status | Active |
Packaging | Tube |
Operating Temperature | -55℃ ~ 125℃ (TJ) |
Key Features: • 8 to 35 volt operation • 5V low drift 1% bandgap reference • 1Hz to 500KHz oscillator range • Dual 100mA source/sink • Digital current limiting • Double pulse suppression • Programmable deadtime • Improved undervoltage lockout • Single pulse metering • Programmable soft-start • Wide current limit common mode range • TTL/CMOS compatible logic ports • Symmetry correction capability • Guaranteed 6 unit synchronization • Shoot thru currents less than 100mA • Improved shutdown delay • Improved rise and fall time The SG1526B is a high-performance pulse width modulator for switching power supplies which offers improved functional and electrical characteris-tics over the industry-standard SG1526. A direct pin-for-pin replacement for the earlier device with all its features, it incorporates the following enhance-ments: a bandgap reference circuit for improved regulation and drift characteristics, improved undervoltage lockout, lower temperature coeffi-cients on oscillator frequency and current-sense threshold, tighter toler-ance on softstart time, much faster SHUTDOWN response, improved double-pulse supperession logic for higher speed operation, and an im-proved output driver design with low shoot-through current, and faster rise and fall times. This versatile device can be used to implement single-ended or push-pull switching regulators of either polarity, both transformer-less and transformer-coupled. The SG1526B is specified for operation over the full military ambient temperature range of -55°C to 150°C. The SG2526B is characterized for the industrial range of -25°C to 150°C, and the SG3526B is designed for the commercial range of 0C to 125C.
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