Datasheet

TPS2560
TPS2561
www.ti.com SLVS930A –DECEMBER 2009– REVISED FEBRUARY 2012
RECOMMENDED OPERATING CONDITIONS
MIN MAX UNIT
V
IN
Input voltage, IN 2.5 6.5 V
V
ENx
TPS2560 0 6.5
Enable voltage V
V
ENx
TPS2561 0 6.5
V
IH
High-level input voltage on ENx or ENx 1.1
V
V
IL
Low-level input voltage on ENx or ENx 0.66
I
OUTx
Continuous output current per channel, OUTx 0 2.5 A
Continuous FAULTx sink current 0 10 mA
T
J
Operating virtual junction temperature –40 125 °C
R
ILIM
Recommended resistor limit range 20 187 kΩ
ELECTRICAL CHARACTERISTICS
over recommended operating conditions, V
/ENx
= 0 V, or V
ENx
= V
IN
(unless otherwise noted)
PARAMETER TEST CONDITIONS
(1)
MIN TYP MAX UNIT
POWER SWITCH
T
J
= 25 °C 44 50
Static drain-source on-state
r
DS(on)
mΩ
resistance per channel, IN to OUTx
–40 °C ≤T
J
≤125 °C 70
V
IN
= 6.5 V 2 3 4
t
r
Rise time, output
V
IN
= 2.5 V 1 2 3
C
Lx
= 1 μF, R
Lx
= 100 Ω,
ms
(see Figure 2)
V
IN
= 6.5 V 0.6 0.8 1.0
t
f
Fall time, output
V
IN
= 2.5 V 0.4 0.6 0.8
ENABLE INPUT EN OR EN
Enable pin turn on/off threshold 0.66 1.1 V
Hysteresis 55
(2)
mV
I
EN
Input current V
ENx
= 0 V or 6.5 V, V
/ENx
= 0 V or 6.5 V –0.5 0.5 μA
t
on
Turnon time 9 ms
C
Lx
= 1 μF, R
Lx
= 100 Ω, (see Figure 2)
t
off
Turnoff time 6 ms
CURRENT LIMIT
R
ILIM
= 20 kΩ 2590 2800 3005
Current-limit threshold per channel (Maximum DC output current
I
OS
I
OUTx
delivered to load) & Short-circuit current, OUTx connected to R
ILIM
= 61.9 kΩ 800 900 1005 mA
GND
R
ILIM
= 100 kΩ 470 560 645
t
IOS
Response time to short circuit V
IN
= 5.0 V (see Figure 3) 3.5
(2)
μs
(1) Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account
separately.
(2) These parameters are provided for reference only, and do not constitute part of TI's published specifications for purposes of TI's product
warranty.
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