TPS51640A, TPS59640, TPS59641
SLUSAQ2 –JANUARY 2012
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
over recommended free-air temperature range, VV5 = VV5DRV = 5.0 V; VV3R3 = 3.3 V; VxGFB = VPGND = VGND, VxVFB = VCORE
(Unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
LOGIC (VCLK, VDIO, ALERT, VR_HOT, VR_ON) INTERFACE PINS: I/O VOLTAGE AND CURRENT
VDIO, ALERT, VR_HOT, pull-down resistance at
0.31 V
RRSVIDL
RRPGDL
IVRTTLK
Open drain pull down resistance
4
8
36
13
50
Ω
Open drain pull down resistance xPGOOD pull-down resistance at 0.31 V
VR_HOT, xPGOOD, Hi-Z leakage,
Open drain leakage current
-2
0.2
2
µA
apply 3.3-V in off state
VIL
Input logic low
VCLK, VDIO
0.45
V
V
VIH
Input logic high
0.65
VHYST
VVR_ONL
VVR_ONH
IVR_ONH
Hysteresis voltage(1)
VR_ON logic low
VR_ON logic high
0.05
V
0.3
V
0.8
10
V
I/O 3.3 V leakage
Leakage current , VVR_ON = 1.1 V
25.0
µA
OVERSHOOT AND UNDERSHOOT REDUCTION (OSR/USR) THRESHOLD SETTING
RxSKIP = 20 kΩ
RxSKIP = 24 kΩ
RxSKIP = 30 kΩ
RxSKIP = 39 kΩ
106
156
207
257
308
409
510
610
40
VOSR
OSR voltage set
mV
RxSKIP = 56 kΩ
RxSKIP = 75 kΩ
RxSKIP = 100 kΩ
RxSKIP = 150 kΩ
RxSKIP = 20 kΩ
RxSKIP = 24 kΩ
RxSKIP = 30 kΩ
RxSKIP = 39 kΩ
RxSKIP = 56 kΩ
RxSKIP = 75 kΩ
RxSKIP = 100 kΩ
60
75
115
153
190
230
–
VUSR
USR voltage set
OSR OFF setting
mV
mV
RxSKIP ≥ 150 kΩ = OFF
VOSR_OFF
VOSRHYS
(2) Specified by design. Not production tested.
VxSKIP at start up
OSR/USR voltage hysteresis(2) All settings
100
300
20%
8
Submit Documentation Feedback
Copyright © 2012, Texas Instruments Incorporated
TI [ TEXAS INSTRUMENTS ]
