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PLM5177DCPR Datasheet(PDF) 3 Page - Texas Instruments

Part # PLM5177DCPR
Description  LM5177 80-V Wide VIN Bidirectional 4-Switch Buck-Boost Controller
PDF  54 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

PLM5177DCPR Datasheet(HTML) 3 Page - Texas Instruments

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5 Pin Configuration and Functions
1
BIAS
38
CSB
2
NC
37
CSA
3
VIN
36
SW1
4
EN/UVLO
35
HB1
5
NC
34
HO1
6
IMONOUT
33
NC
7
nFLT
32
LO1
8
NC
31
VCC
9
NC
30
PGND
10
DTRK
29
LO2
11
SYNC
28
NC
12
MODE
27
HO2
13
CFG
26
HB2
14
SLOPE
25
SW2
15
RT
24
NC
16
SS/ATRK
23
ISNSP
17
AGND
22
ISNSN
18
COMP
21
NC
19
FB
20
VOUT
Not to scale
PAD
Figure 5-1. 38-Pin DCP HTSSOP Pin Diagram
Table 5-1. Pin Functions
Pin
Type(1)
Description
Name
No.
AGND
17
G
Analog ground of the device
BIAS
1
I
Optional input to the VCC bias regulator. Powering VCC from an external supply instead of VIN
can reduce power loss at high VIN.
CFG
13
I/O
Device configuration pin. Connect a resistor between the CFG pin to select the device operation
for spread spectrum (DRSS), short circuit protection (hiccup mode), current limit, or current
monitor.
COMP
18
O
Output of the error amplifier. An external RC network connected between COMP and AGND
compensates the regulator of the output voltage feedback loop.
CSA
37
I
Inductor peak current sensor positive input. Connect CSA to the positive side of the external
current sense resistor using a low-current Kelvin connection.
CSB
38
I
Inductor peak current sense negative input. Connect CSB to the negative side of the external
current sense resistor using a low-current Kelvin connection.
DTRK
10
I
Digital PWM input pin for the dynamical output voltage tracking. Do not leave this pin floating. If
this function is not used, connect the pin to VCC or GND.
www.ti.com
LM5177
SNVSBU4A – JUNE 2022 – REVISED OCTOBER 2022
Copyright © 2022 Texas Instruments Incorporated
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3
Product Folder Links: LM5177



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