參數(shù)資料
型號: TPS2062QDGNRQ1
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝: GREEN, PLASTIC, MSOP-8
文件頁數(shù): 1/24頁
文件大?。?/td> 664K
代理商: TPS2062QDGNRQ1
DGNPACKAGE
(TOP VIEW)
GND
IN
OC1
OUT1
OUT2
OC2
1
2
3
4
8
7
6
5
EN1
EN2
SLVSA01
– AUGUST 2009
CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
Check for Samples: TPS2062-Q1
1
FEATURES
2
Qualified for Automotive Applications
Bidirectional Switch
70-m
High-Side MOSFET
Ambient Temperature Range: -40
°C to 125°C
1-A Continuous Current
Built-in Soft-Start
Thermal and Short-Circuit Protection
UL Listed - File No. E169910
Accurate Current Limit
APPLICATIONS
(1.1 A min, 1.9 A max)
Operating Range: 2.7 V to 5.5 V
Heavy Capacitive Loads
0.6-ms Typical Rise Time
Short-Circuit Protections
Undervoltage Lockout
Deglitched Fault Report (OC)
No OC Glitch During Power Up
1-
μA Maximum Standby Supply Current
DESCRIPTION
The TPS2062 power-distribution switch is intended for applications where heavy capacitive loads and
short-circuits are likely to be encountered. This device incorporates 70-m
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 times 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.
When the output load exceeds the current-limit threshold or a short is present, the device limits the output current
to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx) logic output low. When
continuous heavy overloads and short-circuits increase the power dissipation in the switch, causing the junction
temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal
shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures that the switch remains
off until valid input voltage is present. This power-distribution switch is designed to set current limit at 1.5 A
typically.
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.
2
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright
2009, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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