Datasheet
TPS24700
TPS24701
www.ti.com
SLVSAL3B – MARCH 2011– REVISED MAY 2011
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
MIN NOM MAX UNIT
SENSE, VCC 2.5 18
Input voltage range V
EN, PGb, OUT 0 18
Sink current PGb 0 2 mA
TIMER 1 nF
External capacitance
GATE
(1)
1 µF
Operating junction temperature range, T
J
–40 125 °C
(1) External capacitance tied to GATE should be in series with a resistor no less than 1 kΩ.
ELECTRICAL CHARACTERISTICS
–40°C ≤ T
J
≤ 125°C, V
CC
= 12 V, and V
EN
= 3 V.
All voltages referenced to GND, unless otherwise noted.
PARAMETER CONDITIONS MIN NOM MAX UNIT
VCC
UVLO threshold, rising 2.2 2.32 2.45 V
UVLO threshold, falling 2.1 2.22 2.35 V
UVLO hysteresis
(1)
0.1 V
Enabled ― I
OUT
+ I
VCC
+ I
SENSE
1 1.4 mA
Supply current
Disabled ― EN = 0 V, I
OUT
+ I
VCC
+ I
SENSE
0.45 mA
EN
Threshold voltage, falling 1.2 1.3 1.4 V
Hysteresis
(1)
50 mV
Input leakage current 0 V ≤ V
EN
≤ 30 V –1 0 1 µA
Turnoff time EN ↓ to V
GATE
< 1 V, C
GATE
= 33 nF 20 60 150 µs
Deglitch time EN ↑ 8 14 18 µs
Disable delay EN ↓ to GATE ↓, C
GATE
= 0, t
pff50–90
, See Figure 1 0.1 0.4 1 µs
PGb
Threshold V
(SENSE–OUT)
rising, PGb going high 140 240 340
mV
Hysteresis
(1)
Measured V
(SENSE–OUT)
falling, PGb going low 70
Output low voltage Sinking 2 mA 0.11 0.25 V
Input leakage current V
PGb
= 0 V, 30 V –1 0 1 µA
Delay (deglitch) time Rising or falling edge 2 3.4 6 ms
TIMER
Sourcing current V
TIMER
= 0 V 8 10 12 µA
V
TIMER
= 2 V 8 10 12 µA
Sinking current
V
EN
= 0 V, V
TIMER
= 2 V 2 4.5 7 mA
Upper threshold voltage 1.3 1.35 1.4 V
Lower threshold voltage 0.33 0.35 0.37 V
Timer activation voltage Raise GATE until I
TIMER
sinking, measure V
(GATE–VCC)
, V
CC
= 12 V 5 5.9 7 V
Bleed-down resistance V
TIMER
= 2 V 70 104 130 kΩ
OUT
Input bias current V
OUT
= 12 V 16 30 µA
GATE
Output voltage V
OUT
= 12 V 23.5 25.8 28 V
Clamp voltage Inject 10 µA into GATE, measure V
(GATE–VCC)
12 13.9 15.5 V
Sourcing current V
GATE
= 12 V 20 30 40 µA
(1) These parameters are provided for reference only and do not constitute part of TI’s published device specifications for purposes of TI’s
product warranty.
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