TPS2041B Datasheet, PDF (1/37 Pages) Texas Instruments – CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHES

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DGN−8 D−8
D−16
TPS2041B, TPS2042B
TPS2043B, TPS2044B, TPS2051B
TPS2052B, TPS2053B, TPS2054B
SLVS514E – APRIL 2004 – REVISED JANUARY 2006
CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHES
FEATURES
• 70-mΩ High-Side MOSFET
• 500-mA Continuous Current
• Thermal and Short-Circuit Protection
• Accurate Current Limit
(0.75 A min, 1.25 A max)
• Operating Range: 2.7 V to 5.5 V
• 0.6-ms Typical Rise Time
• Undervoltage Lockout
• Deglitched Fault Report (OC)
• No OC Glitch During Power Up
• Maximum Standby Supply Current:
1-µA (Single, Dual) or 2-µA (Triple, Quad)
• Bidirectional Switch
• Ambient Temperature Range: -40°C to 85°C
• ESD Protection
• UL Recognized, File Number E169910
APPLICATIONS
• Heavy Capacitive Loads
• Short-Circuit Protections
TPS2041B/TPS2051B
D AND DGN PACKAGES
(TOP VIEW)
TPS2042B/TPS2052B
D AND DGN PACKAGES
(TOP VIEW)
GND 1
IN 2
IN ₃
EN^† ₄
8 OUT
7 OUT
6 ^OUT
5 ^OC
GND 1
IN 2
EN1^† 3
EN2^† 4
8 OC1
7 OUT1
6 ^OUT2
5 ^OC2
TPS2043B/TPS2053B
D PACKAGE
(TOP VIEW)
TPS2044B/TPS2054B
D PACKAGE
(TOP VIEW)
GND ¹
IN1 2
EN1† ³
EN2† ⁴
GND 5
IN2 6
EN3† ⁷
NC ⁸
16 _OC1
15 OUT1
14 OUT2
13 OC2
12 OC3
11 OUT3
10 NC
9 NC
GND ¹
IN1 2
EN1† ³
EN2† ⁴
GND 5
IN2 6
EN3† ⁷
EN4† ⁸
16 _OC1
15 OUT1
14 OUT2
13 OC2
12 OC3
11 OUT3
10 OUT4
9 OC4
† _{All enable inputs are active high for the TPS205xB series.}
NC − No connect
DESCRIPTION
The TPS204xB/TPS205xB power-distribution switches are intended for applications where heavy capacitive
loads and short circuits are likely to be encountered. These devices incorporates 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 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 A
typically.
GENERAL SWITCH CATALOG
33 mΩ, single TPS201xA 0.2 A − 2 A
TPS202x 0.2 A − 2 A
TPS203x 0.2 A − 2 A
80 mΩ, dual
TPS2042B
TPS2052B
TPS2046
TPS2056
TPS2062
TPS2066
500 mA
500 mA
250 mA
250 mA
1A
1A
80 mΩ, dual
80 mΩ, triple
80 mΩ, quad
80 mΩ, quad
80 mΩ, single
TPS2014
TPS2015
TPS2041B
TPS2051B
TPS2045
TPS2055
TPS2061
TPS2065
600 mA
1A
500 mA
500 mA
250 mA
250 mA
1A
1A
260 mΩ
TPS2100/1
TPS2080 500 mA
IN1 500 mA TPS2081 500 mA TPS2043B 500 mA
IN1
IN2
IN2 10 mA
OUT
TPS2102/3/4/5
TPS2082
TPS2090
500 mA
250 mA
TPS2053B 500 mA
TPS2047 250 mA
TPS2044B 500 mA
TPS2054B 500 mA
TPS2085
TPS2086
500 mA
500 mA
1.3 Ω
IN1 500 mA ^{TPS2091 250 mA TPS2057 250 mA} TPS2048 250 mA ^{TPS2087 500 mA}
IN2 100 mA ^{TPS2092 250 mA}
TPS2058 250 mA ^{TPS2095 250 mA}
TPS2096 250 mA
TPS2097 250 mA
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.
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 © 2004–2006, Texas Instruments Incorporated