Texas Instruments LSF0108 Handleiding
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LSF0108 Channel Auto-Bidirectional Multi-Voltage Level Translator for Open-Drain
and Push-Pull Applications
1 Features
•Provides bidirectional voltage translation with no
direction pin
•Supports up to 100-MHz up translation and greater
than 100-MHz down translation at
≤ 30 pF capacitive load and up To 40-MHz up or
down translation at 50 pF capacitive load
•Allows bidirectional voltage-level translation
between
–0.65 V ↔ 1.8/2.5/3.3/5 V
–0.95 V ↔ 1.8/2.5/3.3/5 V
–1.2 V ↔ 1.8/2.5/3.3/5 V
–1.8 V ↔ 2.5/3.3/5 V
–2.5 V ↔ 3.3/5 V
–3.3 V ↔ 5 V
•Low standby current
•5-V tolerance I/O port to support TTL
•Low R
ON
provides less signal distortion
•High-impedance I/O pins for EN = Low
•Flow-through pinout for easy PCB trace routing
•Latch-up performance >100 mA per JESD 17
•–40°C to 125°C operating temperature range
2 Applications
•GPIO, MDIO, PMBus, SMBus, SDIO, UART, I
2
C,
and other interfaces in telecom infrastructure
•Enterprise systems
•Communications equipment
•Personal electronics
•Industrial applications
3 Description
The LSF family of devices supports bidirectional
voltage translation without the need for DIR pin which
minimizes system effort (for PMBus, I
2
C, SMBus, and
so forth). The LSF family of devices supports up to
100-MHz up translation and greater than 100-MHz
down translation at ≤ 30 pF capacitive load and up to
40-MHz up or down translation at 50 pF capacitive
load which allows the LSF family to support more
consumer or telecom interfaces (MDIO or SDIO).
LSF family supports 5-V tolerance on I/O port which
makes it compatible with TTL levels in industrial and
telecom applications. The LSF family is able to set
up different voltage translation levels on each channel
which makes it very flexible.
Package Information
PART NUMBERPACKAGE
(1)
BODY SIZE (NOM)
LSF0108
RKS (VQFN, 20)4.50 mm × 2.50 mm
PW (TSSOP, 20)4.40 mm × 6.50 mm
DGS (VSSOP, 20)3.00 mm × 5.10 mm
(1)For all available packages, see the orderable addendum at
the end of the data sheet.
Vref_A
Vref_B
2
19
3
4
5
6
20
EN
18
17
16
15
1
GND
A1
A2
A3
A4
B1
B2
B3
B4
SW
7
8
9
10
14
13
12
11
A5
A6
A7
A8
B5
B6
B7
B8
SW
SW
SW
SW
SW
SW
SW
Functional Block Diagram
LSF0108
SDLS966M – DECEMBER 2013 – REVISED MAY 2023
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | LSF0108 |
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