DRV8848_15 Datasheet, PDF (3/28 Pages) Texas Instruments – DRV8848 Dual H-Bridge Motor Driver

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6 Pin Configuration and Functions
DRV8848
SLLSEL7 – OCTOBER 2014
HTSSOP - PWP Package
16 Pins
Top View
nSLEEP 1
AOUT1 2
AISEN 3
AOUT2 4
BOUT2 5
BISEN 6
BOUT1 7
nFAULT 8
GND
(PPAD)
16 AIN1
15 AIN2
14 VINT
13 GND
12 VM
11 VREF
10 BIN2
9 BIN1
Pin Functions
PIN
TYPE
NAME NO.
DESCRIPTION
AIN1
16
I Bridge A input 1 Controls AOUT1; tri-level input
AIN2
15
I Bridge A input 2 Controls AOUT2; tri-level input
AISEN
3
O Winding A sense Connect to current sense resistor for bridge A, or GND if current regulation is not required
AOUT1
2
AOUT2
4
O Winding A output
BIN1
9
I Bridge B input 1 Controls BOUT1; internal pulldown
BIN2
10
I Bridge B input 2 Controls BOUT2; internal pulldown
BISEN
6
O Winding B sense Connect to current sense resistor for bridge A, or GND if current regulation is not required
BOUT1
7
BOUT2
5
O Winding B output
GND
13
PWR Device ground
PPAD
Both the GND pin and device PowerPAD must be connected to ground
nFAULT 8
OD Fault indication pin Pulled logic low with fault condition; open-drain output requires external pullup
nSLEEP 1
I Sleep mode input Logic high to enable device; logic low to enter low-power sleep mode; internal pulldown
VINT
14
— Internal regulator Internal supply voltage; bypass to GND with 2.2-μF, 6.3-V capacitor
VM
12 PWR Power supply
Connect to motor power supply; bypass to GND with a 0.1- and 10-μF (minimum) ceramic
capacitor rated for VM
VREF
11
I
Full-scale current Voltage on this pin sets the full scale chopping current; short to VINT if not supplying an
reference input
external reference voltage
COMPONENT
C_VM
C_VM
C_VINT
R_nFAULT
R_AISEN
R_BISEN
PIN 1
VM
VM
VINT
VCC ⁽¹⁾
AISEN
BISEN
External Components
PIN 2
RECOMMENDED
GND
10-µF (minimum) ceramic capacitor rated for VM
GND
0.1-µF ceramic capacitor rated for VM
GND
6.3-V, 2.2-µF ceramic capacitor
nFAULT >1 kΩ
GND
Sense resistor, see Typical Application for sizing
GND
Sense resistor, see Typical Application for sizing
(1) VCC is not a pin on the DRV8848, but a VCC supply voltage pullup is required for open-drain output nFAULT; nFAULT may be pulled
up to VINT
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