Texas Instruments TPS2116 Datasheet
TPS2116
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SLVSFG1 – JANUARY 2021
SLVSFG1 – JANUARY 2021
TPS2116
TPS2116 1.6 V to 5.5 V, 2.5-A Low IQ Power Mux with Manual and Priority Switchover
1 Features
• Input voltage range: 1.6 V to 5.5 V
• Maximum continuous current: 2.5 A
• On-resistance: 40 mΩ (typical)
• VIN2 standby current: 50 nA (typical)
• Quiescent current: 1.2 uA (typical)
• Switchover modes:
– Priority mode
– Manual mode
• Controlled output slew rate:
– 1.3 ms (typical) at 3.3 V
• Reverse Current Blocking when VOUT > VIN
• Thermal shutdown
2 Applications
• Backup battery systems
• E-Meters
• Motor Drives
• Building Automation
3 Description
The TPS2116 is a power mux device with a voltage
rating of 1.6 V to 5.5 V and a maximum current rating
of 2.5 A. The device uses N-channel MOSFETs to
switch between supplies while providing a controlled
slew rate when voltage is first applied.
Due to its low quiescent of 1.2 uA (typical) and low
standby current of 50 nA (typical), the TPS2116 is
ideal for systems where a battery is connected to one
of the inputs. These low currents extend the life and
operation of the battery when in use.
The TPS2116 can be configured for two different
switchover behaviors depending on the application.
Automatic priority mode prioritizes the supply
connected to VIN1 and switches over to the
secondary supply (VIN2) when VIN1 drops. Manual
mode allows the user to toggle a GPIO or enable
signal to switch between channels.
Device Information
PART NUMBER PACKAGE BODY SIZE (NOM)
TPS2116 SOT (8) 2.1 mm x 1.6 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
(1)
Basic Application
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
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intellectual property matters and other important disclaimers. ADVANCE INFORMATION for preproduction products; subject to change
without notice.
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TPS2116
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Table of Contents
1 Features............................................................................1
2 Applications..................................................................... 1
3 Description.......................................................................1
4 Revision History.............................................................. 2
5 Pin Configuration and Functions...................................3
6 Specifications.................................................................. 4
6.1 Absolute Maximum Ratings ....................................... 4
6.2 ESD Ratings .............................................................. 4
6.3 Recommended Operating Conditions ........................4
6.4 Thermal Information ...................................................4
6.5 Electrical Characteristics ............................................5
6.6 Switching Characteristics ...........................................6
6.7 Typical Characteristics................................................7
7 Detailed Description........................................................8
7.1 Overview..................................................................... 8
7.2 Functional Block Diagram........................................... 8
7.3 Feature Description.....................................................8
7.4 VINx Collapse Rate.....................................................9
4 Revision History
DATE REVISION NOTES
January 2021 * Initial release.
7.5 Output Voltage Drop................................................... 9
7.6 Device Functional Modes............................................9
8 Application and Implementation.................................. 11
8.1 Application Information..............................................11
8.2 Typical Application.................................................... 11
8.3 Application Limitations.............................................. 12
9 Power Supply Recommendations................................13
10 Layout...........................................................................14
10.1 Layout Guidelines................................................... 14
10.2 Layout Example...................................................... 14
11 Device and Documentation Support..........................15
11.1 Documentation Support.......................................... 15
11.2 Receiving Notification of Documentation Updates..15
11.3 Trademarks............................................................. 15
11.4 Electrostatic Discharge Caution..............................15
11.5 Glossary..................................................................15
12 Mechanical, Packaging, and Orderable
Information.................................................................... 15
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5 Pin Configuration and Functions
Figure 5-1. DRL Package 8-Pin SOT Top View
PIN
NAME NO.
GND 1 - Device ground.
VOUT 2, 7 O Output power.
VIN1 3 I Channel 1 input power.
PR1 4 I
MODE 5 I
VIN2 6 I Channel 2 input power.
ST 8 O Open drain status pin. Pulled low when VIN1 is not being used.
SLVSFG1 – JANUARY 2021
TPS2116
Table 5-1. Pin Functions
I/O DESCRIPTION
Selects between VIN1 and VIN2. When PR1 is high VIN1 is
selected, and when PR1 is low VIN2 is selected.
Device is put into Priority mode when MODE is tied to VIN1 and
manual mode when MODE is pulled up to an external voltage.
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6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)
V
, V
IN1
IN2
V
OUT
VST, V
PR1
V
MODE
I
MAX
I
MAX,PLS
T
J
T
stg
(1) Stresses beyond those listed under Absolute Maximum Rating may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under
Recommended Operating Condition. Exposure to absolute-maximum-rated conditions for extended periods may affect device
reliability.
Input Voltage –0.3 6 V
Output Voltage –0.3 6 V
,
Control Pin Voltage –0.3 6 V
Maximum Current 2.5 A
Maximum Pulsed Current
Max duration 1 ms, Duty cycle of 2%
Junction temperature
Storage temperature –65 150 °C
6.2 ESD Ratings
Human body model (HBM), per ANSI/ESDA/
V
(ESD)
Electrostatic discharge
JEDEC JS-001, all pins
Charged device model (CDM), per JEDEC
specification JESD22-C101, all pins
(1)
MIN MAX UNIT
4 A
Internally
Limited
°C
VALUE UNIT
(1)
±2000
V
(2)
±500
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN NOM MAX UNIT
V
IN1, VIN2
V
OUT
VST,
V
MODE
V
PR1
T
A
Input Voltage 1.6 5.5 V
Output Voltage 0 5.5 V
,
Control Pin Voltage 0 5.5 V
Ambient Temperature –40 105 °C
6.4 Thermal Information
TPS2116
(1)
8-PINS
R
θJA
R
θJC(top)
R
θJB
Ψ
JT
Ψ
JB
THERMAL METRIC
Junction-to-ambient thermal resistance 111.5 °C/W
Junction-to-case (top) thermal resistance 19.4 °C/W
Junction-to-board thermal resistance 35.8 °C/W
Junction-to-top characterization parameter 1.2 °C/W
Junction-to-board characterization parameter 19.1 °C/W
UNITDRL (SOT)
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6.4 Thermal Information (continued)
TPS2116
TPS2116
THERMAL METRIC
(1)
UNITDRL (SOT)
8-PINS
R
θJC(bot)
Junction-to-case (bottom) thermal resistance N/A °C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report.
6.5 Electrical Characteristics
Over operating free-air temperature range and operating voltage range of 1.6V to 5.5V (unless otherwise noted). Typical
specifications are at an input voltage of 3.3V and ambient temperature of 25°C.
PARAMETER TEST CONDITIONS T
Power Consumption
I
STBY,
VIN1
I
STBY,
VIN2
I
Q, VIN1
I
Q, VIN2
I
PR1
I
MODE
I
ST
VIN1 Standby Current
VIN2 Standby Current
VIN1 Quiescent Current
VIN2 Quiescent Current
PR1 pin leakage –40°C to 105°C 0.03 uA
MODE pin leakage –40°C to 105°C 0.03 uA
ST pin leakage –40°C to 105°C 0.03 uA
Performance
VIN2 powers VOUT
VIN1 > VIN2 + 0.1 V
VIN2 powers VOUT
VIN1 + 0.1 V < VIN2
VIN1 powers VOUT
VIN2 > VIN1 + 0.1 V
VIN1 powers VOUT
VIN2 + 0.1 V < VIN1
VIN1 powers VOUT
VIN1 > VIN2 + 0.1 V
VIN1 powers VOUT
VIN1 + 0.1 V < VIN2
VIN2 powers VOUT
VIN2 > VIN1 + 0.1 V
VIN2 powers VOUT
VIN2 + 0.1 V < VIN1
A
25°C 1.2 uA
–40°C to 85°C 1.9 uA
–40°C to 105°C 2 uA
25°C 0.2 uA
–40°C to 85°C 0.31 uA
–40°C to 105°C 0.32 uA
25°C 1.2 uA
–40°C to 85°C 2 uA
–40°C to 105°C 2.1 uA
25°C 0.05 uA
–40°C to 85°C 0.07 uA
–40°C to 105°C 0.09 uA
25°C 1.25 uA
–40°C to 85°C 3.6 uA
–40°C to 105°C 4.4 uA
25°C 0.3 uA
–40°C to 85°C 0.51 uA
–40°C to 105°C 0.55 uA
25°C 1.3 uA
–40°C to 85°C 3.7 uA
–40°C to 105°C 4.5 uA
25°C 0.15 uA
–40°C to 85°C 0.27 uA
–40°C to 105°C 0.29 uA
MIN TYP MAX UNIT
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6.5 Electrical Characteristics (continued)
Over operating free-air temperature range and operating voltage range of 1.6V to 5.5V (unless otherwise noted). Typical
specifications are at an input voltage of 3.3V and ambient temperature of 25°C.
PARAMETER TEST CONDITIONS T
A
25°C 37 46 mΩ
VINx = 5 V
I
= 200 mA
OUT
–40°C to 85°C 55 mΩ
–40°C to 105°C 60 mΩ
25°C 40 48 mΩ
VINx = 3.3 V
I
= 200mA
OUT
R
ON
On-Resistance
VINx = 1.8 V
I
= 200 mA
OUT
–40°C to 85°C 55 mΩ
–40°C to 105°C 59 mΩ
25°C 41 51 mΩ
–40°C to 85°C 61 mΩ
–40°C to 105°C 66 mΩ
25°C 42 52 mΩ
V
OL,ST
t
ST
V
REF
V
IH,
MODE
V
IL,
MODE
VINx = 1.6 V
I
= 200 mA
OUT
Status pin V
OL
IST = 1 mA –40°C to 105°C 0.1 V
Status pin response time RST = 10 kΩ –40°C to 105°C 5 us
PR1 reference voltage –40°C to 105°C 0.92 1 1.08 V
MODE logic high threshold –40°C to 105°C 1 5.5 V
MODE logic low threshold –40°C to 105°C 0 0.35 V
–40°C to 85°C 68 mΩ
–40°C to 105°C 74 mΩ
Protection
t
RCB
V
V
I
RCB
Reverse current blocking response
time
Reverse current blocking rising
RCB,R
threshold (V
Reverse current blocking falling
RCB,F
threshold (V
OUT
OUT
- VIN)
- VIN)
Reverse current blocking activation
current
VOUT > Selected VIN + 1 V –40°C to 105°C 2 us
–40°C to 105°C 42 70 mV
1.6 V ≤ VINx ≤ 5.5 V –40°C to 105°C 17 40 mV
1.6 V ≤ VINx ≤ 5.5 V –40°C to 105°C 1.4 4 A
TSD Thermal shutdown - 170 °C
TSD
Thermal shutdown hysteresis - 20 °C
HYS
MIN TYP MAX UNIT
6.6 Switching Characteristics
Typical switching characteristics are defined at an ambient temperature of 25°C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Switchover
t
SW
t
SW
t
SW
t
D
t
D
t
D
t
SS
t
SS
t
SS
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Switchover time, VINx = 5V RL = 10 Ω, CL = 10 uF 8 us
Switchover time, VINx = 3.3V RL = 10 Ω, CL = 10 uF 6.2 us
Switchover time, VINx = 1.8V RL = 10 Ω, CL = 10 uF 17.7 us
Delay time, VINx = 5V RL = 100 Ω, CL = 10 uF 1 ms
Delay time, VINx = 3.3V RL = 100 Ω, CL = 10 uF 1.2 ms
Delay time, VINx = 1.8V RL = 100 Ω, CL = 10 uF 1.4 ms
Soft-start time, VINx = 5V RL = 100 Ω, CL = 10 uF 1.7 ms
Soft-start time, VINx = 3.3V RL = 100 Ω, CL = 10 uF 1.3 ms
Soft-start time, VINx = 1.8V RL = 100 Ω, CL = 10 uF 0.9 ms
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6.7 Typical Characteristics
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TPS2116
Figure 6-1. Priority Mode Switchover Behavior
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