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MAX14870ETC+T

P1-P3P4-P6P7-P9P10-P12P13-P15
(V
DD
= 12V, T
A
= +25°C, unless otherwise noted.)
0
2
4
6
8
10
12
-45 -30 -15 0 15 30 45 60 75 90
I
SHDN
(µA)
TEMPERATURE (
o
C)
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
toc04
V
DD
= 4.5V
V
DD
= 36V
V
DD
= 24V
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0 1000 2000 3000
ON-RESISTANCE (Ω)
LOAD CURRENT (mA)
HIGH-SIDE ON-RESISTANCE
vs. LOAD CURRENT
toc01
V
DD
= 4.5V
V
DD
= 36V
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0 1 2 3
V
BF
(V)
LOAD CURRENT (A)
toc07
T
A
= 25°C
T
A
= 85°C
T
A
= -40°C
0.00
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
0.20
0 1000 2000 3000
ON-RESISTANCE (Ω)
LOAD CURRENT (mA)
LOW-SIDE ON-RESISTANCE
vs. LOAD CURRENT
toc02
V
DD
= 4.5V
V
DD
= 36V
0
5
10
15
20
25
30
35
40
45
50
55
100 150 200 250 300 350 400 450 500
t
OFF
(µs)
C
OFF
(pF)
OFF-TIME vs. C
OFF
CAPACITANCE
toc08
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
-45 -20 5 30 55 80 105 130
ON-RESISTANCE (Ω)
TEMPERATURE (°C)
ON-RESISTANCE
vs. TEMPERATURE
toc03
LOW SIDE
HIGH SIDE
I
LOAD
= 1A
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0 5 10 15 20 25 30 35 40 45 50
I
CC
(mA)
DATA RATE (kHz)
SUPPLY CURRENT
vs. SWITCHING RATE
toc05
V
DD
= 5V
V
DD
= 36V
C
L
= 10pF on M1/M2
V
DD
= 24V
V
DD
= 12V
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0 1 2 3
V
BF
(V)
LOAD CURRENT (A)
LOW-SIDE M1/M2 BODY DIODE
FORWARD-VOLTAGE vs. LOAD
toc06
T
A
= 25°C
T
A
= 85°C
T
A
= -40°C
MAX14870/MAX14872 Compact 4.5V to 36V
Full-Bridge DC Motor Drivers
Maxim Integrated
│
7
www.maximintegrated.com
Typical Operating Characteristics
PIN
NAME FUNCTION
MAX14870 MAX14872
1, 12 1, 12 COM
COM Current Output. Connect a sense resistor (R
SENSE
) from COM to GND to use internal
current regulation and/or external current control. Connect both COM pins together.
2 2 M1 Motor Driver Output 1. See the Function Tables for more information.
3, 10 3, 10 V
DD
Power Supply Input. Bypass V
DD
to GND with a 1μF ceramic capacitor as close to the
device as possible. Connect both V
DD
pins together.
4 4 SNS
Current Sense Input. Connect SNS to COM to enable current regulation. To bypass
current regulation, connect SNS to GND.
5 — PWM
PWM Control Logic Input. PWM and DIR control M1 and M2 on the MAX14870. See the
Function Tables for more information.
6 — DIR
Direction Control Logic Input. PWM and DIR control M1 and M2 on the MAX14870. See the
Function Tables for more information.
— 5 FWD
Forward Control Logic Input. FWD and REV control M1 and M2 on the MAX14872. See the
Function Tables for more information.
— 6 REV
Reverse Control Logic Input. FWD and REV control M1 and M2 on the MAX14872. See the
Function Tables for more information.
TDFN-EP
3mm x 3mm
*EP = EXPOSED PAD. CONNECT TO GROUND.
MAX14870
M2
GND
EN
M1
SNS
PWM
+
12
COMCOM
V
DD
V
DD
FAULTDIR
11
10
9
8
7
1
2
3
4
5
6
EP*
MAX14872
M2
GND
EN
M1
SNS
FWD
+
12
COMCOM
V
DD
V
DD
FAULTREV
11
10
9
8
7
1
2
3
4
5
6
EP*
TOP VIEW
MAX14870/MAX14872 Compact 4.5V to 36V
Full-Bridge DC Motor Drivers
www.maximintegrated.com
Maxim Integrated
│
8
Pin Conguration
Pin Description
PIN
NAME FUNCTION
MAX14870 MAX14872
7 7 FAULT
Open-Drain Active-Low Fault Output. FAULT goes low during an overcurrent condition and
thermal shutdown.
8 8 EN
Active-Low Enable Input. Drive EN low to enable the driver outputs. Drive EN high to
three-state the driver outputs.
9 9 GND Ground
11 11 M2
Motor Driver Output 2. See the MAX14870 Function Table and MAX14872 Function Table
for more information.
— — EP Exposed Pad. Connect to ground.
INPUTS OUTPUTS
OPERATING MODE
EN V
SNS
PWM DIR M1 M2
1 X X X High impedance High impedance Shutdown
0 < V
SNS_TH
0 X GND GND Brake
0 < V
SNS_TH
1 0 GND V
DD
Counterclockwise/reverse
0 < V
SNS_TH
1 1 V
DD
GND Clockwise/forward
0 > V
SNS_TH
1 0 Switching Switching Current regulation
0 > V
SNS_TH
1 1 Switching Switching Current regulation
INPUTS OUTPUTS
OPERATING MODE
EN V
SNS
FWD REV M1 M2
1 X X X High impedance High impedance Shutdown
0 < V
SNS_TH
0 0 GND GND Brake
0 < V
SNS_TH
1 0 V
DD
GND Forward
0 < V
SNS_TH
0 1 GND V
DD
Reverse
0 < V
SNS_TH
1 1 High impedance High impedance Three-state
0 > V
SNS_TH
1 0 Switching Switching Current regulation
0 > V
SNS_TH
0 1 Switching Switching Current regulation
MAX14870/MAX14872 Compact 4.5V to 36V
Full-Bridge DC Motor Drivers
www.maximintegrated.com
Maxim Integrated
│
9
Pin Description (continued)
MAX14870 Function Table
MAX14872 Function Table
X = Don’t care.
X = Don’t care.
P1-P3P4-P6P7-P9P10-P12P13-P15

MAX14870ETC+T

Mfr. #:
Buy MAX14870ETC+T
Manufacturer:
Maxim Integrated
Description:
Motor / Motion / Ignition Controllers & Drivers 4.5-36V DC Brushed Motor Driver
Lifecycle:
New from this manufacturer.
Delivery:
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