TPS23753A
SLVS933B –JULY 2009–REVISED JANUARY 2010
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ELECTRICAL CHARACTERISTICS (continued)
Unless otherwise noted: CS = APD = CTL = RTN, GATE open, RFRS = 60.4 kΩ, RBLNK = 249 kΩ, CVB = CVC = 0.1 mF, RDEN
24.9 kΩ, RCLS open, VVDD-VSS = 48 V, VVDD1-RTN = 48 V, 8.5 V ≤ VVC-RTN ≤ 18 V, –40°C ≤ TJ ≤ 125°C
Controller Section Only
=
[VSS = RTN and VDD = VDD1] or [VSS = RTN = VDD], all voltages referred to RTN. Typical specifications are at 25°C.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
GATE
Source current
Sink current
VCTL = VB, VC = 12 V, GATE high, Pulsed measurement
VCTL = VB, VC = 12 V, GATE low, Pulsed measurement
0.30
0.50
0.46
0.79
0.60
1.1
A
A
APD
VAPDEN
VAPDH
VAPD
Hysteresis(2)
↑
1.42
0.28
1.5
0.3
1.58
0.32
Threshold voltage
V
THERMAL SHUTDOWN
Turn off temperature
Hysteresis(3)
135
145
20
155
°C
°C
(2) The hysteresis tolerance tracks the rising threshold for a given device.
(3) 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.
ELECTRICAL CHARACTERISTICS
PoE and Control
[VDD = VDD1] or [VDD1 = RTN], VVC-RTN = 0 V, all voltages referred to VSS. Typical specifications are at 25°C.
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
DEN (DETECTION)
(VDD = VDD1 = RTN = VSUPPLY positive)
Measure ISUPPLY
VDD = 1.6 V
Detection current
62 64.3
399 406
5.2
66.5
413
12
5
mA
VDD = 10 V
Detection bias current
Hotswap disable threshold
DEN leakage current
VDD = 10 V, DEN open, Measure ISUPPLY
mA
V
VPD_DIS
Ilkg
3
4
VDEN = VDD = 57 V, Float VDD1 and RTN, Measure IDEN
(VDD = VDD1 = RTN = VSUPPLY positive)
13 V ≤ VDD ≤ 21 V, Measure ISUPPLY
RCLS = 1270 Ω
0.1
5
mA
CLS (CLASSIFICATION)
1.8 2.14
9.9 10.6
17.6 18.6
26.5 27.9
38 39.9
2.4
11.3
19.4
29.3
42
RCLS = 243 Ω
ICLS
Classification current
mA
RCLS = 137 Ω
RCLS = 90.9 Ω
RCLS = 63.4 Ω
VCL_ON
VCL_HYS
VCU_OFF
VCU_HYS
Ilkg
Regulator turns on, VDD rising
Hysteresis(1)
10 11.7
13
Classification regulator lower
threshold
V
1.9 2.05
2.2
23
Regulator turns off, VDD rising
Hysteresis(1)
21
22
Classification regulator upper
threshold
V
0.5 0.77
1
Leakage current
VDD = 57 V, VCLS = 0 V, DEN = VSS, Measure ICLS
(VDD1 = RTN)
1
mA
RTN (PASS DEVICE)
On resistance
0.7
405 450
100 140
11 12.3
1.2
Ω
Current limit
VRTN = 1.5 V, VDD = 48 V, Pulsed Measurement
VRTN = 2 V, VDD: 0 V → 48 V, Pulsed Measurement
VDD rising
505 mA
180 mA
Inrush limit
Foldback voltage threshold
Leakage current
13.6
40
V
Ilkg
VDD = VRTN = 100 V, DEN = VSS
mA
UVLO
UVLO_R
UVLO_H
VDD rising
33.9
35
36.1
4.7
Undervoltage lockout threshold
V
(1)
Hysteresis
4.4 4.55
(1) The hysteresis tolerance tracks the rising threshold for a given device.
4
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