SLVSCU7A February   2016  – March 2016 DRV10970

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Current Limit and OCP
      2. 8.3.2 Thermal Shutdown
      3. 8.3.3 Rotor Lock Detection and Retry
      4. 8.3.4 Supply Undervoltage Condition (UVLO)
      5. 8.3.5 Sleep Mode
    4. 8.4 Device Functional Modes
      1. 8.4.1 Operation in Trapezoidal Mode and Sinusoidal Mode
        1. 8.4.1.1 Trapezoidal Control Mode
        2. 8.4.1.2 Sinusoidal Pulse Wide Modulation (SPWM) Control Mode
      2. 8.4.2 Single Hall Sensor Operation
      3. 8.4.3 Adaptive Drive Angle Adjustment (ADAA) Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Hall Sensor Configuration and Connections
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Community Resources
    2. 12.2 Trademarks
    3. 12.3 Electrostatic Discharge Caution
    4. 12.4 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6 Pin Configuration and Functions

PWP Package
24-Pin TSSOP with PowerPAD™
Top View
DRV10970 po_LVSCU7.gif

Pin Functions

PIN TYPE DESCRIPTION
NAME NO.
POWER AND GROUND
CPN 10 — Charge pump switching node Connect a 0.1-µF X7R capacitor rated for VM between CPN and CPP
CPP 9 —
GND 12 PWR Device ground Must be connected to board ground
VCP 8 — Charge pump output Connect a 16-V, 1-µF ceramic capacitor to VM
VINT 16 PWR Integrated regulator output Integrated regulator (typical voltage 5 V) mainly for internal circuits; Provide external power for less than 20 mA. Bypass to GND with a 10-V, 2.2-µF ceramic capacitor
VM 15 PWR Power supply Connect to motor supply voltage; bypass to GND with a 10-µF ceramic capacitor rated for VM
CONTROL
CS 17 — Current limit setting pin Connect a resistor to adjust the current limit.
DAA 1 I Drive angle adjustment configuration pin Low: 10° drive angle adjustment
High: 5° drive angle adjustment
Floating: adaptive drive angle adjustment
FG 24 O Frequency indication pin Open drain Electrical Frequency Output pin. One toggle per electrical cycle. Requires an external pull-up of 3.3-kΩ.
FR 23 I Motor direction control Direction Control Input.
When low, phase driving sequence is U → V → W ( U phase is leading V phase by 120°).
When high, the phase driving sequence is U → W → V.
BRKMOD 21 I Brake mode setting Low: Coasting mode (phases are tri-stated)
High: Brake mode (phases are driven low)
PWM 19 I Variable duty cycle PWM input for speed control Connect to PWM signal.
RD 18 O Lock indication pin Pulled logic low with lock condition; open-drain output requires an external pull-up of 3.3-kΩ
RETRY 22 I Auto retry timing configure Timing adjustable by capacitor
CMTMOD 20 I Commutation mode setting Low: Sinusoidal operation mode with 0° Hall placement
High: Sinusoidal operation mode with 30° Hall placement
Floating: Trapezoidal operation mode with 30° Hall placement
U_HN 3 I U-phase negative Hall input Differential Hall Sensor negative input for U-phase. Connect to hall sensor negative output. When logic level hall IC is used, tie this pin to VINT/2 level. In single Hall mode, the device uses U-phase hall inputs to drive the motor.
U_HP 2 I U-phase positive Hall input Differential Hall Sensor positive input for U-phase. Connect to hall sensor positive output. When logic level hall IC is used, connect this to hall IC output. In single Hall mode, the device uses U-phase hall inputs to drive the motor.
V_HN 5 I V-phase negative Hall input Differential Hall Sensor negative input for V-phase. Connect to hall sensor negative output. When logic level hall sensor is used, tie this pin to VINT/2 level. In single hall mode, ground this pin.
V_HP 4 I V-phase positive Hall input Differential Hall Sensor positive input for V-phase. Connect to hall sensor positive output. When logic level hall IC is used, connect this to hall IC output. Leave this pin floating to enable single Hall operation.
W_HN 7 I W-phase negative Hall input Differential Hall Sensor negative input for W-phase. Connect to hall sensor negative output. When logic level hall sensor is used, tie this pin to VINT/2 level. In single hall mode, ground this pin.
W_HP 6 I W-phase positive Hall input Differential Hall Sensor positive input for W-phase. Connect to hall sensor positive output. When logic level hall IC is used, connect this to hall IC output. In single hall mode, ground this pin.
OUTPUT STAGE
U 14 O U phase output Connect to motor terminal U
V 13 O V phase output Connect to motor terminal V
W 11 O W phase output Connect to motor terminal W

External Components

COMPONENT PIN 1 PIN 2 RECOMMENDED
CVM VM GND 10-µF ceramic capacitor rated for VM (if VM = 12 V, 25-V capacitor is suggested, if VM = 18 V, 35-V capacitor is suggested)
CVCP VCP VM 16-V, 1-µF ceramic capacitor
CSW CPP CPN 0.1-µF X7R capacitor rated for VM
CVINT VINT GND 10-V, 2.2-µF ceramic capacitorRotor Lock Detection and Retry
CRETRY RETRY GND See Equation 2 for capacitor value
RCS CS GND See Current Limit and OCP for resistor value
RRD VCC(1) RD >1 kΩ, RD is open-drain output. This component must be pulled up externally.
RFG VCC(1) FG >1 kΩ, FG is open-drain output. This component must be pulled up externally.
(1) VCC is not a pin on the DRV10970. It can be VINT or any other system voltage (for example the 3.3-V or 5-V supply voltage powering the microcontroller). A VCC supply voltage pull-up is required for open-drain outputs RD and FG