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UCC28950TPWRQ1 Datasheet(PDF) 8 Page - Texas Instruments

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Part # UCC28950TPWRQ1
Description  Phase-Shifted Full-Bridge Controller With Synchronous Rectification
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

UCC28950TPWRQ1 Datasheet(HTML) 8 Page - Texas Instruments

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UCC28950
DCM
RSUM
RT
TMIN
DELEF
DELCD
DELAB
SS/EN
COMP
EA-
EA+
VREF
24
23
22
21
20
19
18
17
16
15
14
13
ADELEF
ADEL
CS
SYNC
OUTF
OUTE
OUTD
OUTC
OUTB
OUTA
VDD
GND
UCC28950-Q1
SLUSAG4A – APRIL 2011 – REVISED JULY 2012
www.ti.com
DEVICE INFORMATION
Plastic 24-pin TSSOP (PW)
PIN FUNCTIONS
PIN
I/O
FUNCTION
NUMBER
NAME
1
VREF
O
5-V, ±1.5%, 20-mA reference voltage output
2
EA+
I
Error amplifier non-inverting input
3
EA–
I
Error amplifier inverting input
4
COMP
I/O
Error amplifier output and input to the PWM comparator
5
SS/EN
I
Soft-start programming, device enable and hiccup-mode protection circuit
6
DELAB
I
Dead-time delay programming between OUTA and OUTB
7
DELCD
I
Dead-time delay programming between OUTC and OUTD
8
DELEF
I
Delay-time programming between OUTA to OUTF, and OUTB to OUTE
9
TMIN
I
Minimum duty-cycle programming in burst mode
10
RT
I
Oscillator frequency set. Master- or slave-mode setting
11
RSUM
I
Slope compensation programming. Voltage-mode or peak-current-mode setting
12
DCM
I
DCM threshold setting
Delay-time programming between primary-side and secondary-side switches, tAFSET
13
ADELEF
I
and tBESET.
Dead-time programming for the primary switches over CS voltage range, tABSET and
14
ADEL
I
tCDSET.
15
CS
I
Current sense for cycle-by-cycle overcurrent protection and adaptive delay functions
16
SYNC
I/O
Synchronization out from master controller to input of slave controller
17
OUTF
O
0.2-A sink/source synchronous switching output
18
OUTE
O
0.2-A sink/source synchronous switching output
19
OUTD
O
0.2-A sink/source primary switching output
20
OUTC
O
0.2-A sink/source primary switching output
21
OUTB
O
0.2-A sink/source primary switching output
22
OUTA
O
0.2-A sink/source primary switching output
23
VDD
I
Bias supply input
24
GND
Ground. All signals are referenced to this node.
8
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Copyright © 2011–2012, Texas Instruments Incorporated
Product Folder Link(s): UCC28950-Q1


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