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MAX15004_11 Datasheet, PDF (6/27 Pages) Maxim Integrated Products – 4.5V to 40V Input Automotive Flyback/Boost/SEPIC Power-Supply Controllers
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4.5V to 40V Input Automotive
Flyback/Boost/SEPIC Power-Supply Controllers
Typical Operating Characteristics
(VIN = 14V, CIN = 0.1μF, CVCC = 0.1μF // 1μF, CREG5 = 1μF, VON/OFF = 5V, CSS = 0.01μF, CSLOPE = 100pF, RT = 13.7kΩ,
CT = 560pF. TA = +25°C, unless otherwise noted.)
VIN UVLO HYSTERESIS
vs. TEMPERATURE
120
110
100
90
80
70
60
50
40
30
20
10
0
-40 -15 10 35 60 85 110 135
TEMPERATURE (°C)
VCC OUTPUT VOLTAGE
vs. VIN SUPPLY VOLTAGE
7.5
IVCC = 0mA
7.0
IVCC = 1mA IVCC = 20mA
6.5
6.0
5.5
5.0
5
10 15 20 25 30 35 40 45
VIN SUPPLY VOLTAGE (V)
REG5 DROPOUT VOLTAGE
vs. IREG5
0.30
0.28 VCC = 4.5
0.25 VIN = VON/OFF
TA = +125°C
0.23
0.20
TA = +135°C
0.18
0.15
0.13
0.10
0.08
0.05
TA = +25°C
0.03
TA = -40°C
0
0 2 4 6 8 10 12 14
IREG5 (mA)
VIN SUPPLY CURRENT (ISUPPLY)
vs. OSCILLATOR FREQUENCY (fOSC)
31 MAX15005
28 VIN = 14V
25 CT = 220pF
22
19
COUT = 10nF
16
13
10
7
COUT = 0nF
4
1
10 60 110 160 210 260 310 360 410 460 510
FREQUENCY (kHz)
VCC CLAMP VOLTAGE
vs. VCC CURRENT SINK (IVCC)
10.50
10.25
10.00
9.75
9.50
TA = +25°C
TA = +135°C
TA = -40°C
TA = +125°C
9.25
9.00
8.75
8.50
8.25
8.00
7.75
7.50
7.25
7.00
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30
VCC CURRENT SINK (mA)
OSCILLATOR FREQUENCY (fOSC)
vs. VIN SUPPLY VOLTAGE
150
149
RT = 13.7kΩ
CT = 560pF
MAX15005
148
147
146
TA = +25°C
TA = -40°C
145
144
143
142
TA = +125°C
TA = +135°C
141
140
5.5 10.5 15.5 20.5 25.5 30.5 35.5 40.5 45.5
VIN SUPPLY VOLTAGE (V)
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
20
19
18
17
16
15 TA = +135°C
14
13
12
11
10
TA = +25°C
9
8
7
6
TA = -40°C
5
5 10 15 20 25 30 35 40 45
SUPPLY VOLTAGE (V)
REG5 OUTPUT VOLTAGE
vs. VCC VOLTAGE
5.000
4.975
IREG5 = 1mA (SOURCING)
4.950
4.925
4.900
4.875
4.850
4.825
IREG5 = 15mA (SOURCING)
4.800
4.775
4.750
4.725
4.700
5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5
VCC VOLTAGE (V)
OSCILLATOR FREQUENCY (fOSC)
vs. RT/CT
1000
CT = 100pF
CT = 220pF
CT = 560pF
100
CT = 1500pF
CT = 2200pF
CT = 1000pF
CT = 3300pF
10
1
10
100
1000
RT (kΩ)
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