Controller

TL2845P Datasheet PDF – PWM Controller

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Part Number: TL2845P

Function: CURRENT-MODE PWM CONTROLLER

Package: DIP 8 Pin Type

Manufacturer: Texas Instruments

Pinouts:

TL2845P datasheet

 

Description

The TL2845P, TL284x and TL384x series of control integrated circuits provide the features that are necessary toimplement off-line or dc-to-dc fixed-frequency current-mode control schemes, with a minimum number of external components. Some of the internally implemented circuits are an undervoltage lockout (UVLO), featuring a start-up current of less than 1 mA, and a precision reference trimmed for accuracy at the error amplifier input. Other internal circuits include logic to ensure latched operation, a pulse-width modulation (PWM) comparator (that also provides current-limit control), and a totem-pole output stage designed to source or sink high-peak current. The output stage, suitable for driving N-channel MOSFETs,is low when it is in the off state.

Features

1. Optimized for Off-Line and dc-to-dc Converters

2. Low Start-Up Current (<1 mA)

3. Automatic Feed-Forward Compensation

4. Pulse-by-Pulse Current Limiting

5. Enhanced Load-Response Characteristics

6. Undervoltage Lockout With Hysteresis

7. Double-Pulse Suppression

8. High-Current Totem-Pole Output

9. Internally Trimmed Bandgap Reference

10. 500-kHz Operation

11. Error Amplifier With Low Output Resistance

12. Designed to Be Interchangeable With UC2842 and UC3842 Series

 

TL2845P Datasheet PDF Download


TL2845P pdf

Other data sheets are available within the file:

TL2842D, TL2842D-8, TL2842DR, TL2842DR-8, TL2842

TPS2546 Datasheet PDF – USB Charging Port Controller

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Part Number: TPS2546

Function: USB Charging Port Controller and Power Switch with Load Detection

Package: Available in 16-Pin QFN (3×3) Package

Manufacturer: Texas Instruments

Pinouts:

TPS2546 datasheet

 

Description

The TPS2546 is a USB charging port controller and power switch with an integrated USB 2.0 high-speed data line (D+/D–) switch. TPS2546 provides the electrical signatures on D+/D– to support charging schemes listed under device feature section.

TI tests charging of popular mobile phones, tablets and media devices with the TPS2546 to ensure compatibility with both BC1.2 compliant and non-BC1.2 compliant devices.

Block Diagram :

 

components

Features

1. Supports Sleep-Mode Charging and Mouse/Keyboard Wakeup

2. Automatic SDP/CDP Switching for Devices That Do Not Connect to CDP Ports

3. Load Detection for Power Supply Control in S4/S5 Charging and Port Power Management in All Charge Modes

4. Compatible With USB 2.0 and 3.0 Power Switch Requirements

 

Applications:

1. USB Ports (Host and Hubs)

2. Notebook and Desktop PCs

3. Universal Wall-Charging Adapters

TPS2546 Datasheet PDF Download


TPS2546 pdf

Other data sheets are available within the file: 2546, TPS2546RTER, TPS2546RTET