STMicroelectronics UC3845BD1013TR 1 PWM Controller, 500 kHz 30 V 8-Pin, SO-8

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Units
Per unit
Per Tape*
20 - 180$0.959$19.18
200 - 480$0.911$18.22
500 - 980$0.845$16.90
1000 - 1980$0.777$15.54
2000 +$0.748$14.96

*price indicative

Packaging Options:
RS Stock No.:
151-980
Distrelec Article No.:
304-37-487
Mfr. Part No.:
UC3845BD1013TR
Brand:
STMicroelectronics
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Brand

STMicroelectronics

Product Type

PWM Controller

Maximum Switching Frequency

500kHz

Start-up Supply Current

0.5mA

Supply Current

17mA

Output Voltage

5 V

Output Current

1A

Number of Outputs

1

Minimum Supply Voltage

7V

Package Type

SO-8

Pin Count

8

Maximum Supply Voltage

30V

Maximum Duty Cycle

100%

Minimum Operating Temperature

-40°C

Maximum Operating Temperature

150°C

PWM Controller Type

Current Mode

Standards/Approvals

RoHS

Series

UC

Automotive Standard

No

COO (Country of Origin):
MA
The STMicroelectronics Controller, it belongs to family of control ICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include a trimmed oscillator for precise DUTY CYCLE CONTROL under voltage lockout featuring start-up current less than 0.5mA, a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which also provides current limit control, and a totem pole output stage designed to source or sink high Peak current.

High current totem pole output

Undervoltage lockout with hysteresis

Low start-up and operating current

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