Datasheet
TPS2359
SLUS792H –FEBRUARY 2008–REVISED MAY 2013
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
IN3A = IN3B = VDD3A = VDD3B = 3.3 V. IN12A = IN12B = SENPA = SENPB = SENMA = SENMB = SETPA = SETPB = 12
V. EN3A = EN3B = AGND = GNDA = GNDB = 0 V. SUM12A = SUM12B = 6.8 kΩ to ground. SUM3A = SUM3B = 3.3 kΩ to
ground. All other pins open. All I2C bits at default values. Over free air temperature operating range and all voltages
referenced to AGND, -40°C ≤ T
A
≤ 85°C, unless otherwise noted.
PARAMETER CONDITIONS MIN TYP MAX UNITS
12-V UVLO
UVLO rising IN12x rising 8.1 8.5 8.9
V
UVLO hysteresis IN12x falling 0.44 0.5 0.59
12-V BLOCKING
Turn-on threshold Measure V
SENPx
– V
OUTx
5 10 15
mV
Turn-off threshold Measure V
SENPx
– V
OUTx
–5 –3 0
Turn-off delay 20-mV overdrive, C
BLKx
= 0 pF, t
p50-50
200 300 ns
12-V Gate drivers (PASSx, BLKx)
Output voltage V
INx
= V
OUTx
= 10 V 21.5 23 24.5 V
Sourcing current V
IN12x
= V
OUT12x
= 10 V, V
PASSx
= V
BLKx
= 17 V 20 30 40 μA
Fast turnoff, V
PASSx
= V
BLKx
= 14 V 0.5 1 A
Sinking current
Sustained, V
PASSx
= V
BLKx
= 4 – 25 V 6 14 25 mA
Pulldown resistance In OTSD (at 150 °C) 14 20 26 kΩ
Fast turnoff duration 5 10 15 ms
Safety gate pulldown IRF3710, slew S or D 15 V in 1 ms 1.25 V
Startup time IN12x rising to PASSx and BLKx sourcing 0.25 ms
3.3-V Summing node
Summing threshold 655 675 695 mV
3.3-V Current limit
On resistance I
OUT3x
= 150 mA 290 500 mΩ
Current limit R
SUM3x
= 3.3 kΩ , V
OUT3x
= 0 V 170 195 225
mA
Fast trip threshold 240 300 400
Fast turn-off delay I
OUT3x
= 400 mA, t
p50-50
750 1300 ns
Bleed down resistance V
OUT3x
= 1.65 V 280 400 500 Ω
Bleed down threshold 75 100 130 mV
3.3-V UVLO
UVLO rising IN3x rising 2.65 2.75 2.85 V
UVLO hysteresis IN3x falling 200 240 300 mV
3.3-V Blocking
Turn-on threshold Measure V
IN3x
– V
OUT3x
5 10 15
mV
Turn-off threshold Measure V
IN3x
– V
OUT3x
–5 –3 0
V
IN3x
= 3.3 V, V
OUT3x
= 3.5 V, OUT3x = 100 Ω to
GND, 3ORON = 1. Remove 3.5 V from OUT3x.
ORing turn-on delay 300 350 μs
Measure time from V
OUT3x
thru 2.9 V to V
OUT3x
=
3.2 V
Fast turnoff delay 20 mV overdrive, t
p50-50
250 350 ns
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