Datasheet
TPS23751
TPS23752
www.ti.com
SLVSB97C –JULY 2012–REVISED JANUARY 2014
CONTROLLER SECTION (continued)
V
C
= 12 V, V
DEN
= V
VSS
, V
ARTN
= V
RTN
= V
SS
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
GATE (GATE DRIVER)
Peak source current GATE high, pulsed measurement 0.35 0.60 1.00 A
Peak sink current GATE low, pulsed measurement 0.70 1.00 1.40 A
Rise time
(2)
t
prr10–90
, C
GATE
= 1 nF; see Figure 4 40 ns
Fall time
(2)
t
pff90–10
, C
GATE
= 1 nF; see Figure 4 27 ns
Pull-up resistance 20 Ω
Pull-down resistance 10 Ω
SRD (SYNCHRONOUS RECTIFIER DISABLE)
Output low voltage I
SRD
= 2 mA sinking 0.25 0.45 V
Leakage current V
CTL
= 1.75 V, V
SRD
= 18 V 10 µA
SRT (SYNCHRONOUS RECTIFIER THRESHOLD)
Leakage current 0 V ≤ V
SRT
≤ 5 V 1 µA
THERMAL SHUTDOWN
Shutdown T
J
rising 135 145 155 °C
Hysteresis
(2)
20 °C
(2) Parameters provided for reference only, and do not constitute part of TI published specifications for purposes of TI product warranty.
SLEEP MODE (TPS23752 ONLY)
V
DD
= 48 V, V
APD
= V
ARTN
= V
RTN
= V
VSS
, V
VC
= 13 V
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SLPb
SLPb threshold V
SLPb
falling until I
LED
↑ 1.10 1.66 2.10 V
Input pull-up current 4 5.7 8 µA
MODE
MODE threshold MODE falling unti I
LED
↑ 1.10 1.66 2.10 V
MODE hysteresis
(1)
1.6 V
Input pullup current 4 5.7 8 µA
WAKE
Output voltage Sleep mode 2.43 2.50 2.57 V
R
WKPLUP
Pull-up resistance 3.95 5.33 6.88 kΩ
LED
Output low voltage SLPb ↓, I
LED
= 10 mA 0.60 0.90 1.50 V
Leakage current V
LED
= 18 V 10 µA
SLEEP SUPPLY CURRENT
Sleep supply current when
V
APD
= 2 V; SLPb ↓, measure I
VDD
0.5 1 mA
APD is enabled
Pulsed mode: V
MODE
= 0 V; SLPb ↓,
10.0 10.6 11.5 mApk
Measure I
VDD
0 ≤ I
LED
≤ 10 mA
MPS supply current
DC mode: V
MODE
= V
B
, then SLPb ↓,
10.0 10.6 11.5 mA
Measure I
VDD
0 ≤ I
LED
≤ 10 mA
MPS pulsed current duty cycle 28.80% 28.88% 28.95%
MPS pulsed mode duty
MPS pulsed current ON time 75 87.5 ms
cycle
MPS pulsed current OFF time 215 250 ms
(1) Parameters provided for reference only, and do not constitute part of TI published specifications for purposes of TI product warranty.
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