MAX14870 Datasheet, PDF (8/15 Pages) Maxim Integrated Products – Full-Bridge DC Motor Drivers

MAX14870/MAX14872
Pin Configuration
Compact 4.5V to 36V
Full-Bridge DC Motor Drivers
TOP VIEW
COM ¹
M1 2
VDD 3
SNS 4
PWM 5
DIR 6
*EP
MAX14870
12 _COM
11 M2
10 VDD
9 GND
8 EN
7 FAULT
COM ¹
M1 2
VDD 3
SNS 4
FWD 5
REV 6
TDFN-EP
3mm x 3mm
* EP = Exposed Pad. Connect to ground.
*EP
MAX14872
12 _COM
11 M2
10 VDD
9 GND
8 EN
7 FAULT
Pin Description
PIN
MAX14870 MAX14872
1, 12
1, 12
2
2
3, 10
3, 10
4
4
5
-
6
-
-
5
-
6
NAME
COM
M1
V_DD
SNS
PWM
DIR
FWD
REV
FUNCTION
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.
Motor Driver Output 1. See the Function Tables for more information.
Power Supply Input. Bypass V_DD to GND with a 1μF ceramic capacitor as close to the
device as possible. Connect both VDD pins together.
Current Sense Input. Connect SNS to COM to enable current regulation. To bypass
current regulation, connect SNS to GND.
PWM Control Logic Input. PWM and DIR control M1 and M2 on the MAX14870. See the
Function Tables for more information.
Direction Control Logic Input. PWM and DIR control M1 and M2 on the MAX14870. See the
Function Tables for more information.
Forward Control Logic Input. FWD and REV control M1 and M2 on the MAX14872. See the
Function Tables for more information.
Reverse Control Logic Input. FWD and REV control M1 and M2 on the MAX14872. See the
Function Tables for more information.
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