Manufacturer Part #
UC3843BN
UC3843B Series 30 V 17 mA High Performance Current Mode PWM Controller - DIP-8
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| Mfr. Name: | STMicroelectronics | ||||||||||
| Standard Pkg: | Product Variant Information section Available PackagingPackage Qty:50 per Tube Mounting Method:Through Hole | ||||||||||
| Date Code: | 1509 | ||||||||||
Product Specification Section
STMicroelectronics UC3843BN - Product Specification
Shipping Information:
Item cannot ship to certain countries. See List
Item cannot ship to following countries:
ECCN:
EAR99
PCN Information:
N/A
File
Date
Part Status:
Active
Active
STMicroelectronics UC3843BN - Technical Attributes
Attributes Table
| Mounting Method: | Through Hole |
Features & Applications
The UC3843BN is 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 0.5 A.
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. The output stage, suitable for driving N-Channel MOSFETs, is low in the offstate.
Features:
- Trimmed Oscillator for Precise frequency Control
- Oscillator Frequency Guaranteed at 250 Hz
- Current Mode Operation to 500 kHz
- Automatic Feed Forward Copensation
- Latching PWM for Cycle-by-cycle Current Limiting
- Internally Trimmed Reference with Undervoltage lockout
- High Current totem pole output Undervoltage Lockout With Hystersis
- Low Start-up and Operating Current
Pricing Section
Global Stock:
4
USA:
4
On Order:
0
Factory Lead Time:
14 Weeks
Quantity
Web Price
1
$0.45
100
$0.43
300
$0.415
1,000
$0.40
3,000+
$0.37
Product Variant Information section
Available Packaging
Package Qty:
50 per Tube
Mounting Method:
Through Hole
