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TPS254900A-Q1 Datasheet(PDF) 5 Page - Texas Instruments

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Part No. TPS254900A-Q1
Description  Automotive USB Host Charger With Short-to-VBATT Protection
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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TPS254900A-Q1 Datasheet(HTML) 5 Page - Texas Instruments

 
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TPS254900A-Q1
www.ti.com
SLUSCU5A – NOVEMBER 2017 – REVISED JANUARY 2018
Product Folder Links: TPS254900A-Q1
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Copyright © 2017–2018, Texas Instruments Incorporated
(1)
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report.
6.4 Thermal Information
THERMAL METRIC(1)
TPS254900A-Q1
UNIT
RVC (WQFN)
20 PINS
RθJA
Junction-to-ambient thermal resistance
37.9
°C/W
RθJC(top)
Junction-to-case (top) thermal resistance
39.9
°C/W
RθJB
Junction-to-board thermal resistance
11.9
°C/W
ψJT
Junction-to-top characterization parameter
0.5
°C/W
ψJB
Junction-to-board characterization parameter
11.8
°C/W
RθJC(bot)
Junction-to-case (bottom) thermal resistance
3.2
°C/W
(1)
Pulse-testing techniques maintain junction temperature close to ambient temperature. Thermal effects must be taken into account
separately.
(2)
This parameter is provided for reference only and does not constitute part of TI's published device specifications for purposes of TI's
product warranty.
6.5 Electrical Characteristics
Unless otherwise noted, –40°C
≤ TJ ≤ 125°C and 4.5 V ≤ V(IN) ≤ 6.5 V, V(EN) = V(CTL1) = V(CTL2) = V(IN), R(FAULT) = R(STATUS) =
10 kΩ, R(IMON) = 2.55 kΩ, R(ILIM_HI) = 19.1 kΩ, R(ILIM_LO) = 80.6 kΩ. Positive currents are into pins. Typical values are at 25°C.
All voltages are with respect to GND.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
OUT – POWER SWITCH
rDS(on)
On-resistance(1)
TJ = 25°C
45
55
–40°C
≤ TJ ≤ 85°C
45
69
–40°C
≤TJ ≤ 125°C
45
77
Ilkg
Reverse leakage current
VOUT = 6.5 V, VIN = VEN = 0 V, –40°C ≤ TJ ≤ 85°C,
measure I(IN)
0.01
2
µA
OUT – DISCHARGE
R(DCHG)
Discharge resistance
(mode change)
400
500
630
Ω
CTL1, CTL2, EN, OVP_SEL INPUTS
Input pin rising logic
threshold voltage
0.8
1.35
2
V
Input pin falling logic
threshold voltage
0.7
1.15
1.65
V
Hysteresis(2)
200
mV
Input current
Pin voltage = 0 V or 6.5 V
–1
1
µA
CURRENT LIMIT
IOS
OUT short-circuit current
limit
R(ILIM_LO) = 210 kΩ
190
240
290
mA
R(ILIM_LO) = 80.6 kΩ
555
620
680
R(ILIM_LO) = 21.5 kΩ
2145
2300
2460
R(ILIM_LO) = 19.1 kΩ
2420
2590
2760
R(ILIM_HI) = 18.2 kΩ
2545
2720
2895
R(ILIM_HI) = 14.3 kΩ
3240
3455
3670
R(ILIM_HI) shorted to GND
5000
6500
8000
SUPPLY CURRENT
I(IN_OFF)
Disabled IN supply current
V(EN) = 0 V, V(OUT) = 0 V, –40°C ≤ TJ ≤ 85°C, no
5.1-k
Ω resistor (open) between BIAS and OUT
0.1
5
µA
I(IN_ON)
Enabled IN supply current
SDP mode (CTL1, CTL2 = 0, 1)
170
250
µA
CDP mode (CTL1, CTL2 = 1, 1)
200
280
Client mode (CTL1, CTL2 = 0, 0)
120
210


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