TPA7252/TPA7253(3PEAK思瑞浦)
- The device combines a dual operational amplifier and afixed 2.5-V shunt voltage reference, which are often usedin the control circuitry of power supplies.The operational amplifier A has the non-inverting inputinternally tied to the shunt re
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The device combines a dual operational amplifier and afixed 2.5-V shunt voltage reference, which are often usedin the control circuitry of power supplies.The operational amplifier A has the non-inverting inputinternally tied to the shunt reference which is used forthe voltage control loop. The operational amplifier B isindependent of the current control loop.The device has a 220-μA power supply excluding thecurrent in the reference, and the minimum working currentfor the reference is 50 μA, which can be used in low-powerapplications.
Features
• Operational Amplifier
– Supply Voltage: 3 V to 36 V
– Low Supply Current: Maximum 220 μA
– Input Rail to −VS, Rail-to-Rail Output
– Excellent High-Frequency PSRR+: 65 dB at 100kHz
– Offset Voltage of TPA7252/7252A: ±4 mV Maximumat 25°C
– Offset Voltage of TPA7253/7253A: ±2 mV Maximumat 25°C
• Voltage Reference
– 2.5-V Output, Stable with No Load to 1-μF Load
– TPA7252/7253: 1% Initial Accuracy
– TPA7252A/7253A: 0.4% Initial Accuracy
• −40°C to 125°C Operation Temperature Range
Applications
• Power Module
• Adapter
• Led Lighting
Features
• Operational Amplifier
– Supply Voltage: 3 V to 36 V
– Low Supply Current: Maximum 220 μA
– Input Rail to −VS, Rail-to-Rail Output
– Excellent High-Frequency PSRR+: 65 dB at 100kHz
– Offset Voltage of TPA7252/7252A: ±4 mV Maximumat 25°C
– Offset Voltage of TPA7253/7253A: ±2 mV Maximumat 25°C
• Voltage Reference
– 2.5-V Output, Stable with No Load to 1-μF Load
– TPA7252/7253: 1% Initial Accuracy
– TPA7252A/7253A: 0.4% Initial Accuracy
• −40°C to 125°C Operation Temperature Range
Applications
• Power Module
• Adapter
• Led Lighting
