TPS2062A Datasheet, PDF (1/23 Pages) Texas Instruments – TWO CHANNEL, CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHES

TPS2062A
TPS2066A
www.ti.com ..................................................................................................................................................... SLVS798D – JANUARY 2008 – REVISED APRIL 2008
TWO CHANNEL, CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHES
FEATURES
1
•2 70-mΩ High-Side MOSFET
• 1-A Continuous Current
• Thermal and Short-Circuit Protection
• Accurate Current-Limit
(1.2 A min, 2 A max)
• Operating Range: 2.7 V to 5.5 V
• 0.6-ms Typical Rise Time
• Undervoltage Lockout
• Deglitched Fault Report (OCx)
• No OCx Glitch During Power Up
• 1-µA Maximum Standby Supply Current
• Bidirectional Switch
• Ambient Temperature Range: –40°C to 85°C
• Built-in Soft-Start
APPLICATIONS
• Heavy Capacitive Loads
• Short-Circuit Protection
TPS2062A/TPS2066A
D PACKAGE
(TOP VIEW)
GND 1
IN
2
EN1 3
EN2 ⁴
8
OC1
7 OUT 1
6
OUT2
5
OC2
TPS2062A/TPS2066A
DRB PACKAGE
(TOP VIEW)
GND
IN
EN1
EN2
18
2 _PAD 7
36
4
5
OC1
OUT1
OUT2
OC2
Enable inputs are active low for all TPS2062A
and active high for all TPS2066A
DESCRIPTION
The TPS206xA power-distribution switches are intended for applications where heavy capacitive loads and
short-circuits are likely to be encountered. The TPS206xA family is pin-for-pin compatible with the TPS206x
family with a tighter overcurrent tolerance. This family of devices incorporates two 70-mΩ N-channel MOSFET
power switches for power-distribution systems that require multiple power switches in a single package. Each
switch is controlled by a logic enable input. Gate drive is provided by an internal charge pump designed to
control the power-switch rise and fall times to minimize current surges during switching. The charge pump
requires no external components and allows operation from supplies as low as 2.7 V.
Each device limits the output current to a safe level by switching into a constant-current mode when the output
load exceeds the current-limit threshold or a short is present. Individual channels indicate the presence of an
overcurrent condition by asserting its corresponding OCx output (active low). Thermal protection circuitry
disables the device during overcurrent or short-circuit events to prevent permanent damage. The device recovers
from thermal shutdown automatically once the device has cooled sufficiently. The device provides undervoltage
lockout to disable the device until the input voltage rises above 2.0 V. The TPS206xA is designed to current limit
at 1.6 A typically per channel.
TPS201xA 0.2 A - 2 A
TPS202x 0.2 A - 2 A
TPS203x 0.2 A - 2 A
TPS2014 600 mA
TPS2015 1 A
TPS2041B 500 mA
TPS2051B 500 mA
TPS2045A 250 mA
TPS2049 100 mA
TPS2055A 250 mA
TPS2061 1 A
TPS2065 1 A
TPS2068 1.5 A
TPS2069 1.5 A
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2008, Texas Instruments Incorporated