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TEXAS INSTRUMENTS  TL3845P  PWM Controller Current 25V-12V supply, 500 kHz, 30V/200mA out, DIP-8

TEXAS INSTRUMENTS TL3845P
Technical Data Sheet (10.06KB) EN See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The TL3845P is a current-mode PWM Controller provides the features that are necessary to implement 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 under-voltage lockout (UVLO), featuring a start-up current of less than 1mA 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.
  • Optimized for Off-line and DC-to-DC converters
  • <1mA Low start-up current
  • Automatic feed-forward compensation
  • Pulse-by-pulse current limiting
  • Enhanced load-response characteristics
  • Under-voltage lockout with hysteresis
  • Double-pulse suppression
  • High-current totem-pole output
  • Internally trimmed band gap reference
This device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

Product Information

Input Voltage:
5.5V
Output Voltage:
30V
Output Current:
200mA
Supply Voltage Min:
12V
Supply Voltage Max:
25V
Controller IC Case Style:
DIP
No. of Pins:
8Pins
Frequency:
500kHz
Operating Temperature Min:
0°C
Operating Temperature Max:
70°C
Packaging:
Each
Product Range:
-
Automotive Qualification Standard:
-
MSL:
-
SVHC:
No SVHC (15-Jun-2015)

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Applications

  • Industrial

Legislation and Environmental

Moisture Sensitivity Level:
-
Country of Origin:
Mexico

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000771

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