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UC3846N Datasheet(PDF) 3 Page - Texas Instruments

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Part No. UC3846N
Description  Current Mode PWM Controller
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
Logo TI1 - Texas Instruments

UC3846N Datasheet(HTML) 3 Page - Texas Instruments

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UC1846, UC1847, UC2846
UC2847, UC3846, UC3847
www.ti.com
SLUS352C – JANUARY 1997 – REVISED DECEMBER 2015
5 Pin Configuration and Functions
J or N, DW Packages
16-Pin CDIP or PDIP, SOIC
Top View
FN or FK Packages
20-Pin PLCC or LCCC
Top View
Pin Functions
PIN
I/O
DESCRIPTION
PLCC, LCC
DIL, SOIC NO.
NAME
NO.
1
2
C/S SS
I
Current limit/soft-start programming
2
3
VREF
O
5.1-V reference voltage output
3
4
C/S –
I
Current sense comparator inverting input
4
5
C/S +
I
Current sense comparator non-inverting input
5
7
E/A +
I
Error amplifier inverting input
6
8
E/A –
I
Error amplifier inverting input
7
9
COMP
I/O
Error amplifier output and input to the PWM comparator
8
10
CT
I
Oscillator frequency programming capacitor pin
9
12
CR
I
Oscillator frequency programming resistor pin
10
13
Sync
I/O
Synchronization out from master controller or input of slave controller
11
14
A Out
O
PWM drive signal output A, Pin11 and P14 are complementary
12
15
GND
G
All signals are referenced to this node
13
17
VC
I
Bias supply input for output stage
14
18
B Out
O
PWM drive signal output B, Pin11 and P14 are complementary
15
19
VIN
I
Bias supply input
16
20
Shutdown
I
External shutdown signal input
1, 6, 11, 16
N/C
Copyright © 1997–2015, Texas Instruments Incorporated
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Product Folder Links: UC1846 UC1847 UC2846 UC2847 UC3846 UC3847


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