SLWS237A November   2012  – November 2014 DRV11873

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3  Description
  4. 4 Simplified Schematic
  5. 5 Revision History
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 Handling 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  Speed Control
      2. 8.3.2  Frequency Generator
      3. 8.3.3  FS Setting
      4. 8.3.4  Lock Protection and RD Output
      5. 8.3.5  Reverse Spin Control FR
      6. 8.3.6  5-V LDO
      7. 8.3.7  Overcurrent Protection
      8. 8.3.8  UVLO
      9. 8.3.9  Thermal Shutdown
      10. 8.3.10 Anti-Voltage Surge (AVS)
    4. 8.4 Device Functional Modes
      1. 8.4.1 Startup
      2. 8.4.2 Closed Loop Control
      3. 8.4.3 AVS Protection
  9. 9 Application and Implementation
    1. 9.1 Application Information
    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 Trademarks
    2. 12.2 Electrostatic Discharge Caution
    3. 12.3 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
16 Pins
(Top View)
po_pwp_lws237.gif

Pin Functions

PIN I/O(1) DESCRIPTION
NAME NO.
FS 1 I Motor parameter adjustment pin. Pull low for lower-speed motor and pull high for high-speed motor.
FG 2 O Frequency generator output. The output period is equal to 6 electrical states (FG).
RD 3 O In the lock condition, RD output is high through a pullup resistor to VCC or 5 V.
VCP 4 O Charge pump output
CPP 5 O Charge pump conversion terminal
CPN 6 O Charge pump conversion terminal
W 7 O Phase W output
GND 8 — Ground pin
V 9 O Phase V output
U 10 O Phase U output
VCC 11 I Input voltage for motor and chip supply voltage
V5 12 O 5-V regulator output
COM 13 I Motor common terminal input. If the motor does not have a common wire, see Application and Implementation for more details.
CS 14 I Overcurrent threshold set-up pin. A resistor set-up current limit is connected between this pin and ground. The voltage across the resistor compares with the voltage converted from the bottom MOSFETs' current. If MOSFETs' current is high, the part goes into the overcurrent protection mode by turning off the top PWM MOSFET and keeping the bottom MOSFET on.
Ilimit(A) = 6600 / RCS (Ω); Equation valid range: 500 mA < Ilimit < 2000 mA
FR 15 I Set high for reverse rotation. Set low or floating for forward rotation.
PWMIN 16 I PWM input pin. The PWM input signal is converted to a fixed switching frequency on the MOSFET driver.
(1) I = input, O = output, N/A = not available