Datasheet

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TPIC74100-Q1
BUCK/BOOST SWITCH-MODE REGULATOR
SLIS125 – DECEMBER 2006
ELECTRICAL CHARACTERISTICS (continued)
V
(driver)
= 6 V to 17 V, T
A
= -40°C to 125°C, unless otherwise noted
Parameters TEST CONDITIONS Min Typ Max Unit
RESET
V
(th)
RESET threshold voltage 4.51 4.65 4.79 V
V
(RESET)
RESET tolerance 3%
C
(REST)
= 10 nF 8 10 12
t
(RESET)
RESET time ms
C
(REST)
= 100 nF, see Note
(5)
80 100 120
I
sink
= 5 mA 450
V
OL
RESET output low voltage mV
I
sink
= 1 mA 84
t
(deglitch)
RESET deglitch time See Note
(5)
8 10 12.5 µs
Alarm
V
I
Alarm input-voltage range –0.5 40 V
V
IL
Alarm threshold low voltage 2.2 2.3 2.35 V
V
IH
Alarm threshold high voltage 2.43 2.5 2.58 V
V
(hys)
Hysteresis voltage 200 mV
I
sink
= 5 mA 450
V
OL
Alarm output low voltage mV
I
sink
= 1 mA 84
Low-Power Mode (Pulse Mode) PFM
I
O(LPM)
Load current in low-power mode V
(driver)
< 7 V 50 mA
I
I(avg)
Average input current V
(driver)
= 11 V, I
O
= 5 mA, CLP = low 3.55 mA
V
O
Output-voltage tolerance V
O
= 5 V 2.4% 3%
Digital Low-Power Mode (CLP)
High-level CLP input threshold
V
IH
Normal mode 2.6 V
voltage
Low-level CLP input threshold
V
IL
Low-power mode 1.15 V
voltage
Switching Parameters
f
(sw)
Switching frequency V
(Rmod)
= 0 V, modulator OFF 440 kHz
f
(sw)
= 440 kHz 18%
f
(sw)ac
Operating-frequency accuracy
f
(sw)
= 440 kHz 20%
f
(sw)min
Modulation minimum frequency 270 330 445 kHz
f
(sw)max
Modulation maximum frequency 450 550 680 kHz
f
(mod)span
Modulation span 220 kHz
f
(mod)
Modulation frequency R
mod
= 12 k Ω ±1% 28 kHz
f
(mod)ac
Modulation-frequency accuracy 12%
(5) Ensured by characterization.
6
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