| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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5,545 pcs
|
5545 pcs | On Request | 1 | On Request | On Request | 19+ | On Request | On Request |
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| Clock Sync | |
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| Duty Cycle (Max) | |
| Frequency | |
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| Mounting Type | |
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| Synchronous Rectifier | |
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| Voltage |
The TL3845BP from Texas Instruments is a high-performance current-mode PWM controller. It is designed to facilitate the implementation of off-line or DC-to-DC fixed-frequency current-mode control schemes with minimal external components. This controller operates within a voltage range of 7.6V to 30V and is characterized by its current mode operation up to 500kHz.
Key features include a low start-up current of less than 0.5mA and an internally trimmed reference with undervoltage lockout. The device supports various topologies including Boost, Flyback, and Forward Converter configurations. It operates at a frequency of 100kHz with a maximum duty cycle of 48% and offers frequency control features.
The TL3845BP is housed in an 8-pin DIP package and is designed for through-hole mounting. It operates within an ambient temperature range of 0°C to 70°C, making it suitable for a variety of power management applications. The output type is a transistor driver, configured for positive output.
This controller series is pin-compatible with standard TL284x and TL384x devices, offering improvements such as trimmed oscillator discharge current and specific undervoltage lockout thresholds for different variants. The TL3845B variant features UVLO thresholds of 8.4V (on) and 7.6V (off).
| Qty | Low | High |
|---|---|---|
| 1+ | $0.78 | $0.78 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The TL3845BP operates with an input voltage range from 7.6V to 30V.
The TL3845BP operates over 0°C to 70°C (TA).
The TL3845BP is available in an 8-PDIP (0.300", 7.62mm) through-hole package.
The TL3845BP supports boost, flyback, and forward converter topologies.
The TL3845BP has a fixed 100kHz oscillator frequency, and it can be adjusted for current mode operation up to 500kHz.
The maximum duty cycle is 48%.
The UVLO thresholds are 8.4V (turn-on) and 7.6V (turn-off).