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| MAX14871_14 Datasheet, PDF (7/15 Pages) Maxim Integrated Products – 4.5V to 36V Full-Bridge DC Motor Driver | |||
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MAX14871
4.5V to 36V Full-Bridge DC Motor Driver
Typical Operating Characteristics
(VDD = 24V, TA = +25°C, unless otherwise noted.)
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0
HIGH-SIDE ON RESISTANCE
vs. LOAD CURRENT
toc01
VDD = 4.5V
VDD = 36V
1000
2000
3000
LOAD CURRENT (mA)
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
12
toc04
VDD = 36V
10
8
VDD = 24V
6
4
VDD = 4.5V
2
0
-45 -30 -15 0 15 30 45 60 75 90
TEMPERATURE (oC)
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
0
LOW-SIDE ON RESISTANCE
vs. LOAD CURRENT
toc02
VDD = 4.5V
VDD = 36V
1000
2000
3000
LOAD CURRENT (mA)
ON-RESISTANCE
0.40
vs. TEMPERATURE
toc03
ILOAD = 1A
0.35
0.30
HIGH-SIDE
0.25
0.20
0.15
0.10
LOW-SIDE
0.05
0.00
-45 -20
5 30 55 80
TEMPERATURE (oC)
105 130
SUPPLY CURRENT
1.6
vs. SWITCHING RATE
toc05
1.4
VDD = 36V
1.2
VDD = 24V
1.0
0.8
0.6
0.4
VDD = 12V
VDD = 5V
0.2
CL = 10pF on M1/M2
0.0
0 5 10 15 20 25 30 35 40 45 50
DATA RATE (kHz)
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
LOW-SIDE M1/M2 BODY DIODE
FORWARD-VOLTAGE vs. LOAD toc06
TA = -40°C
TA = 25°C
TA = 85°C
1
2
3
LOAD CURRENT (A)
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
HIGH-SIDE M1/M2 BODY DIODE
FORWARD-VOLTAGE vs. LOAD
toc07
TA = 25°C
TA = -40°C
TA = 85°C
1
2
3
LOAD CURRENT (A)
OFF-TIME vs COFF CAPACITANCE
55
toc08
50
45
40
35
30
25
20
15
10
5
0
100 150 200 250 300 350 400 450 500
COFF (pF)
www.maximintegrated.com
Maxim Integrated ââ 7
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