The TPS20xxC and TPS20xxC-2 power-distribution switch family is intended for applications, such as USB, where heavy capacitive loads and short circuits are likely to be encountered. This family offers multiple devices with fixed current-limit thresholds for applications from 0.5 A to 2 A.
The TPS20xxC and TPS20xxC-2 family limits the output current to a safe level by operating in a constant-current mode when the output load exceeds the current limit threshold. This provides a predictable fault current under all conditions. The fast overload response time eases the burden on the main 5-V supply to provide regulated power when the output is shorted. The power-switch rise and fall times are controlled to minimize current surges during turnon and turnoff.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TPS20xxC, TPS20xxC-2 |
SOT-23 (5) | 2.90 mm × 1.60 mm |
VSSOP (8) | 3.00 mm × 3.00 mm | |
MSOP-PowerPAD (8) | 3.00 mm × 3.00 mm |
Changes from G Revision (July 2013) to H Revision
Changes from F Revision (August 2012) to G Revision
Changes from E Revision (April 2012) to F Revision
Changes from D Revision (February 2012) to E Revision
Changes from C Revision (October 2011) to D Revision
Changes from B Revision (September 2011) to C Revision
Changes from A Revision (July 2011) to B Revision
Changes from * Revision (June 2011) to A Revision
MAXIMUM OPERATING CURRENT |
OUTPUT DISCHARGE | ENABLE | BASE PART NUMBER | PACKAGED DEVICE AND MARKING(1) | ||
---|---|---|---|---|---|---|
MSOP-8 (DGN) PowerPAD™ |
SOT23-5 (DBV) |
VSSOP-8 (DGK) |
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0.5 | Y | Low | TPS2041C | —(2) | PYJI | — |
0.5 | Y | High | TPS2051C | — | VBYQ | — |
1 | Y | Low | TPS2061C | PXMI | PXLI | — |
1 | Y | High | TPS2065C | VCAQ | VCAQ | — |
1 | N | High | TPS2065C-2 | PYRI | PYQI | — |
1.5 | Y | Low | TPS2068C | PXNI | — | — |
1.5 | Y | High | TPS2069C | VBUQ | PYKI | — |
1.5 | N | High | TPS2069C-2 | PYSI | — | — |
2 | Y | Low | TPS2000C | BCMS | — | PXFI |
2 | Y | High | TPS2001C | VBWQ | – | PXGI |
PIN | I/O | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
EN/EN | 4 | I | Enable input, logic high turns on power switch |
FLT | 5 | O | Active-low open-drain output, asserted during overcurrent, or overtemperature conditions |
GND | 1 | — | Ground connection |
IN | 2, 3 | PWR | Input voltage and power-switch drain; connect a 0.1-µF or greater ceramic capacitor from IN to GND close to the IC |
OUT | 6, 7, 8 | PWR | Power-switch output, connect to load |
PowerPAD (DGN Only) | PowerPAD | — | Internally connected to GND. Connect PAD to GND plane as a heatsink for the best thermal performance. PAD may be left floating if desired. See Power Dissipation and Junction Temperature for guidance. |
MIN | MAX | UNIT | ||
---|---|---|---|---|
Voltage on IN, OUT, EN or EN, FLT (4) | –0.3 | 6 | V | |
Voltage from IN to OUT | –6 | 6 | V | |
Maximum junction temperature, TJ | Internally Limited | |||
Storage temperature, Tstg | –60 | 150 | °C |
VALUE | UNIT | |||
---|---|---|---|---|
V(ESD) | Electrostatic discharge | Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) | ±2000 | V |
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) | ±500 | |||
IEC 61000-4-2 contact discharge | ±8000 | |||
IEC 61000-4-2 air-gap discharge(3) | ±15000 |
MIN | NOM | MAX | UNIT | |||
---|---|---|---|---|---|---|
VIN | Input voltage, IN | 4.5 | 5.5 | V | ||
VEN | Input voltage, EN or EN | 0 | 5.5 | V | ||
VIH | High-level input voltage, EN or EN | 2 | V | |||
VIL | Low-level input voltage, EN or EN | 0.7 | V | |||
IOUT | Continuous output current, OUT(1) | TPS2041C and TPS2051C | 0.5 | A | ||
TPS2061C, TPS2065C and TPS2065C-2 | 1 | |||||
TPS2068C, TPS2069C and TPS2069C-2 | 1.5 | |||||
TPS2000C and TPS2001C | 2 | |||||
TJ | Operating junction temperature | –40 | 125 | °C | ||
IFLT | Sink current into FLT | 0 | 5 | mA |
THERMAL METRIC(1) | TPS20xxC, TPS20xxC-2 | UNIT | ||
---|---|---|---|---|
DBV (SOT-23)(2) | DBV (SOT-23)(3) | |||
5 PINS | 5 PINS | |||
RθJA | Junction-to-ambient thermal resistance | 224.9 | 220.4 | °C/W |
RθJCtop | Junction-to-case (top) thermal resistance | 95.2 | 89.7 | °C/W |
RθJB | Junction-to-board thermal resistance | 51.4 | 46.9 | °C/W |
ψJT | Junction-to-top characterization parameter | 6.6 | 5.2 | °C/W |
ψJB | Junction-to-board characterization parameter | 50.3 | 46.2 | °C/W |
RθJCbot | Junction-to-case (bottom) thermal resistance | — | — | °C/W |
RθJACustom | See Power DIssipation and Junction Temperature | 139.3 | 134.9 | °C/W |
THERMAL METRIC(1) | TPS20xxC, TPS20xxC-2 | UNIT | |||
---|---|---|---|---|---|
DGN (MSOP-PowerPAD)(2) |
DGN (MSOP-PowerPAD)(3) |
DGK (VSSOP)(4) |
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8 PINS | 8 PINS | 8 PINS | |||
RθJA | Junction-to-ambient thermal resistance | 72.1 | 67.1 | 205.5 | °C/W |
RθJC(top) | Junction-to-case (top) thermal resistance | 87.3 | 80.8 | 94.3 | °C/W |
RθJB | Junction-to-board thermal resistance | 42.2 | 37.2 | 126.9 | °C/W |
ψJT | Junction-to-top characterization parameter | 7.3 | 5.6 | 24.7 | °C/W |
ψJB | Junction-to-board characterization parameter | 42 | 36.9 | 125.2 | °C/W |
RθJC(bot) | Junction-to-case (bottom) thermal resistance | 39.2 | 32.1 | — | °C/W |
RθJACustom | See Power DIssipation and Junction Temperature | 66.5 | 61.3 | 110.3 | °C/W |
PARAMETER | TEST CONDITIONS(1) | MIN | TYP | MAX | UNIT | ||
---|---|---|---|---|---|---|---|
POWER SWITCH | |||||||
RDS(on) | Input – output resistance | 0.5-A rated output, 25°C | DBV | 97 | 110 | mΩ | |
0.5-A rated output, –40°C ≤ (TJ , TA) ≤ 85°C |
DBV | 96 | 130 | mΩ | |||
1-A rated output, 25°C | DBV | 96 | 110 | mΩ | |||
DGN | 86 | 100 | |||||
1-A rated output, –40°C ≤ (TJ , TA) ≤ 85°C |
DBV | 96 | 130 | mΩ | |||
DGN | 86 | 120 | |||||
1.5-A rated output, 25°C | DBV | 76 | 91 | mΩ | |||
DGN | 69 | 84 | mΩ | ||||
1.5-A rated output, –40°C ≤ (TJ , TA) ≤ 85°C |
DBV | 76 | 106 | mΩ | |||
DGN | 69 | 98 | mΩ | ||||
2-A rated output, 25°C | DGN, DGK | 72 | 84 | mΩ | |||
2-A rated output, –40°C ≤ (TJ , TA) ≤ 85°C | DGN, DGK | 72 | 98 | mΩ | |||
CURRENT LIMIT | |||||||
IOS(3) | Current limit, See Figure 6 |
0.5-A rated output | TPS20xxC | 0.67 | 0.85 | 1.01 | A |
1-A rated output | TPS20xxC | 1.3 | 1.55 | 1.8 | |||
TPS20xxC-2 | 1.18 | 1.53 | 1.88 | ||||
1.5-A rated output | TPS20xxC | 1.7 | 2.15 | 2.5 | |||
TPS20xxC-2 | 1.71 | 2.23 | 2.75 | ||||
2-A rated output | TPS20xxC | 2.35 | 2.9 | 3.4 | |||
SUPPLY CURRENT | |||||||
ISD | Supply current, switch disabled | IOUT = 0 A | 0.01 | 1 | µA | ||
–40°C ≤ (TJ , TA) ≤ 85°C, VIN = 5.5 V, IOUT = 0 A | 2 | ||||||
ISE | Supply current, switch enabled | IOUT = 0 A | 60 | 70 | µA | ||
–40°C ≤ (TJ , TA) ≤ 85°C, VIN = 5.5 V, IOUT = 0 A | 85 | ||||||
Ilkg | Leakage current | VOUT = 0 V, VIN = 5 V, disabled, measure IVIN | TPS20xxC-2 | 0.05 | 1 | µA | |
–40°C ≤ (TJ , TA) ≤ 85°C, VOUT = 0 V, VIN = 5 V, disabled, measure IVIN |
2 | ||||||
IREV | Reverse leakage current | VOUT = 5 V, VIN = 0 V, measure IVOUT | 0.1 | 1 | µA | ||
–40°C ≤ (TJ , TA) ≤ 85°C, VOUT = 5 V, VIN = 0 V, measure IVOUT | 5 | ||||||
OUTPUT DISCHARGE | |||||||
RPD | Output pulldown resistance(2) | VIN = VOUT = 5 V, disabled | TPS20xxC | 400 | 470 | 600 | Ω |
PARAMETER | TEST CONDITIONS(1) | MIN | TYP | MAX | UNIT | ||
---|---|---|---|---|---|---|---|
POWER SWITCH | |||||||
RDS(ON) | Input – output resistance | 0.5-A rated output | DBV | 97 | 154 | mΩ | |
1-A rated output | DBV | 96 | 154 | mΩ | |||
DGN | 86 | 140 | |||||
1.5-A rated output | DBV | 76 | 121 | mΩ | |||
DGN | 69 | 112 | mΩ | ||||
2-A rated output | DGN, DGK | 72 | 112 | mΩ | |||
ENABLE INPUT (EN or EN) | |||||||
Threshold | Input rising | 1 | 1.45 | 2 | V | ||
Hysteresis | 0.07 | 0.13 | 0.2 | V | |||
Leakage current | (VEN or VEN) = 0 V or 5.5 V | –1 | 0 | 1 | µA | ||
CURRENT LIMIT | |||||||
IOS(3) | Current limit, See Figure 23 |
0.5-A rated output | TPS20xxC | 0.65 | 0.85 | 1.05 | A |
1-A rated output | TPS20xxC | 1.2 | 1.55 | 1.9 | |||
TPS20xxC-2 | 1.1 | 1.53 | 1.96 | ||||
1.5-A rated output | TPS20xxC | 1.6 | 2.15 | 2.7 | |||
TPS20xxC-2 | 1.6 | 2.23 | 2.86 | ||||
2-A rated output | TPS20xxC | 2.3 | 2.9 | 3.6 | |||
tIOS | Short-circuit response time(2) | VIN = 5 V (see Figure 6), One-half full load → RSHORT = 50 mΩ, Measure from application to when current falls below 120% of final value |
2 | µs | |||
SUPPLY CURRENT | |||||||
ISD | Supply current, switch disabled | IOUT = 0 A | 0.01 | 10 | µA | ||
ISE | Supply current, switch enabled | IOUT = 0 A | 65 | 90 | µA | ||
Ilkg | Leakage current | VOUT = 0 V, VIN = 5 V, disabled, measure IVIN |
TPS20XXC-2 | 0.05 | µA | ||
IREV | Reverse leakage current | VOUT = 5.5 V, VIN = 0 V, measure IVOUT | 0.2 | 20 | µA | ||
UNDERVOLTAGE LOCKOUT | |||||||
VUVLO | Rising threshold | VIN↑ | 3.5 | 3.75 | 4 | V | |
Hysteresis(2) | VIN↓ | 0.14 | V | ||||
FLT | |||||||
Output low voltage, FLT | IFLT = 1 mA | 0.2 | V | ||||
OFF-state leakage | VFLT = 5.5 V | 1 | µA | ||||
tFLT | FLT deglitch | FLT assertion or deassertion deglitch | 6 | 9 | 12 | ms | |
OUTPUT DISCHARGE | |||||||
RPD | Output pulldown resistance | VIN = 4 V, VOUT = 5 V, disabled | TPS20XXC | 350 | 560 | 1200 | Ω |
VIN = 5 V, VOUT = 5 V, disabled | TPS20XXC | 300 | 470 | 800 | |||
THERMAL SHUTDOWN | |||||||
Rising threshold (TJ) | In current limit | 135 | °C | ||||
Not in current limit | 155 | ||||||
Hysteresis (2) | 20 |
MIN | NOM | MAX | UNIT | ||||
---|---|---|---|---|---|---|---|
ENABLE INPUT (EN or EN) | |||||||
tON | Turnon time | VIN = 5 V, CL = 1 µF, RL = 100 Ω, EN ↑ or EN ↓. See Figure 1, Figure 3, and Figure 4 |
0.5-A and 1-A Rated | 1 | 1.4 | 1.8 | ms |
1.5-A and 2-A Rated | 1.2 | 1.7 | 2.2 | ||||
tOFF | Turnoff time | VIN = 5 V, CL = 1 µF, RL = 100 Ω, EN ↓ or EN ↑. See Figure 1, Figure 3, and Figure 4 |
0.5-A and 1-A Rated | 1.3 | 1.65 | 2 | ms |
1.5-A and 2-A Rated | 1.7 | 2.1 | 2.5 | ||||
tR | Rise time, output | CL = 1 µF, RL = 100 Ω, VIN = 5 V. See Figure 2 | 0.5-A and 1-A Rated | 0.4 | 0.55 | 0.7 | ms |
1.5-A and 2-A Rated | 0.5 | 0.7 | 1 | ||||
tF | Fall time, output | CL = 1 µF, RL = 100 Ω, VIN = 5 V. See Figure 2 | 0.5-A and 1-A Rated | 0.25 | 0.35 | 0.45 | ms |
1.-5A and 2-A Rated | 0.3 | 0.43 | 0.55 |