TPS5124
SLUS571 鈭?SEPTEMBER 2003
ELECTRICAL CHARACTERISTICS
TJ = 鈭?0擄C to 85擄C, VCC = 12 V (unless otherwise noted)
PARAMETER
SUPPLY CURRENTS
ICC
ICCS
Supply current
VIN standby current
5-V REGULATOR
VVREF5
VLN5
VLD5
IOS
VTHH
VTHL
VHYS
VREF
VREF(tol)
VREF(ln)
VREF(ld)
VIH
VIL
Output voltage
Line regulation
Load regulation
Short-circuit output current
UVLO threshold voltage
Hysteresis
Reference voltage
Reference voltage tolerance
Line regulation
Load regulation
High-level input voltage
Low-level input voltage
OVP comparator threshold voltage
UVP comparator threshold voltage
Overvoltage protection
Timer latch current source
OSCILLATOR
fOSC
VOSC(h)
VOSC(l)
Frequency
High-level output voltage
Low-level output voltage
CT = 47 pF,
DC
fOSC = 300 kHz
DC
fOSC = 300 kHz
TA = 25擄C
50
2.5
VO = 2.5 V
VO = 2.5 V
fOSC = 300 kHz,
V(INV1) = V(INV2) = 0 V
2
鈭?
4
鈭?
80%
mA
TA = 25擄C
1.0
0.4
300
1.1
1.14
0.5
0.46
2
10
mV
dB
MHz
0.6
V
1.2
kHz
Undervoltage protection
IREF = 50
碌A(chǔ),
6.5 V
鈮?/div>
VCC
鈮?/div>
15 V,
0.1
碌A(chǔ) 鈮?/div>
IREF
鈮?/div>
1 mA
STBY1, STBY2
STBY1, STBY2
0.90
0.58
鈭?
鈭?
0.95
0.66
鈭?
鈭?.7
2.2
0.3
1.00
0.74
鈭?2
鈭?.3
V
碌A(chǔ)
A
V
TA = 25擄C
IREF = 50
碌A(chǔ)
-0.5%
0.03
0.15
TA = 25擄C,
VCT = VINV1=VINV2 = 0 V
VSTBY1 = VSTBY2 = 0 V
TA = 25擄C,
7.5 V
鈮?/div>
VCC
鈮?/div>
15 V,
0 mA
鈮?/div>
IO
鈮?/div>
10 mA
7.5 V
鈮?/div>
VCC
鈮?/div>
15 V,
1 mA
鈮?/div>
IO
鈮?/div>
10 mA
VREF5 = 0 V,
high-to-low
low-to-high
TA = 25擄C
65
3.6
3.5
30
0.85
0.5%
3.00
5.00
mV
4.2
4.1
150
IO =10 mA
1.1
0.1
1.5
10.0
mA
碌A(chǔ)
TEST CONDITIONS
MIN
TYP
MAX
UNIT
4.8
5.0
5.2
20
40
V
mV
mA
V
V
mV
V
REFERENCE VOLTAGE
CONTROL
OUTPUT VOLTAGE MONITOR
ERROR AMPLIFIER
VIO
Input offset voltage
Open-loop voltage gain
Unity gain bandwidth
ISINK
ISRC
Output sink current
Output source current
Maximum duty cycle
DUTY CONTROL
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