| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
4,000 pcs
|
4000 pcs | On Request | 1 | On Request | On Request | 19+ | On Request | On Request | |
|
2,048 pcs
|
2048 pcs | On Request | 1 | On Request | On Request | 1340+ | On Request | On Request | |
|
1,012 pcs
|
1012 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Manufacturer Name | |
| Clock Sync | |
| Control Features | |
| Duty Cycle (Max) | |
| Frequency | |
| Function | |
| Mounting Type | |
| Number of Outputs | |
| Operating Temperature | |
| Output Configuration | |
| Output Phases | |
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| Supplier Device Package | |
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| Synchronous Rectifier | |
| Topology | |
| Voltage |
The TL3845BDR-8 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.
Key electrical specifications include an operating voltage range of 7.6V to 30V and a maximum duty cycle of 48%. The device operates at a frequency of 100kHz, with a capability for current mode operation up to 500kHz. It features a low start-up current of less than 0.5mA and a trimmed oscillator discharge current of 8.3mA typical. Undervoltage lockout thresholds are typically 8.4V (on) and 7.6V (off).
This controller is suitable for applications such as switching regulators of any polarity and transformer-coupled DC/DC converters. It is housed in an 8-SOIC package and supports surface mount mounting type. The operating temperature range is 0°C to 70°C.
The TL3845BDR-8 integrates features like an undervoltage lockout, a precision trimmed reference, latched operation logic, a PWM comparator for current-limit control, and a high-current totem-pole output stage designed for driving N-channel MOSFETs.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.15 | $0.15 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating voltage range is 7.6V to 30V.
It comes in an 8-SOIC surface mount package.
The operating temperature range is 0°C to 70°C.
The switching frequency is 100kHz to 500kHz.
The maximum duty cycle is 48% (datasheet) or 50% (manufacturer page).
The UVLO thresholds are 8.4V (on) and 7.6V (off) for standard devices, and 16V (on) and 10V (off) for B versions.
The start-up current is less than 0.5mA.