SLVS857B December   2009  – January 2015 DRV8808

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Setup Mode, Extended Setup Mode, Power-Down Mode
        1. 7.3.1.1 Operation Setup Register Bit Assignment
        2. 7.3.1.2 Operation Extended Setup Register Bit Assignment
        3. 7.3.1.3 Deep Sleep Mode
        4. 7.3.1.4 DC Motor Drive
        5. 7.3.1.5 Short/Open for Motor Outputs
        6. 7.3.1.6 Charge Pump
        7. 7.3.1.7 DC-DC Converters
        8. 7.3.1.8 nReset: Input for System Reset
        9. 7.3.1.9 VM Start-up/Power-Down and Glitch Condition
      2. 7.3.2 Blanking Time Insertion Timing for DC Motor Driving
      3. 7.3.3 Function Table in nORT, Power Down, VM Conditions
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operation With 7 V < VM < 18 V
      2. 7.4.2 Operation With 18 V ≤ VM ≤ 38 V
    5. 7.5 Programming
      1. 7.5.1 Serial Interface
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Output Voltage for Each DC-DC Converter
        2. 8.2.2.2 Output Voltage Start Up Sequence
        3. 8.2.2.3 Other Parameters
        4. 8.2.2.4 Motor Configuration
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Trademarks
    2. 11.2 Electrostatic Discharge Caution
    3. 11.3 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

5 Pin Configuration and Functions

DCA Package
48-Pins HTSSOP
Top View
po1_lvs857.gif

Pin Functions

PIN I/O PU/PD SHUNT R DESCRIPTION
NAME NO.
A- 28 O — — Motor drive output for winding A-
A+ 31 O — — Motor drive output for winding A+
A_CONT 15 I Down 100k DC-DC A converter control (L = Enable)
B- 36 O — — Motor drive output for winding B-
B+ 33 O — — Motor drive output for winding B+
C- 42 O — — Motor drive output for winding C-
C+ 39 O — — Motor drive output for winding C+
CP1 46 O — — Charge pump bucket capacitor output (low side)
CP2 45 O — — Charge pump bucket capacitor output (high side)
CSELECT 5 I Up 200k DC-DC converter startup selector
ENA / STB 9 I Down 100k Enable input for DC motor A control / SPI STROBE
ENB 11 I Down 100k Enable input for DC motor B control
ENC 13 I Down 100k Enable input for DC motor C control
FB_A 48 I — — Feedback signal for DC-DC converter A
FB_B 24 I — — Feedback signal for DC-DC converter B
FB_C 4 I — — Feedback signal for DC-DC converter C
GND 3 — — — Ground
GND 26 — — — Ground
GND 47 — — — Ground
LOGIC_OUT 7 O — — Information monitoring output (open drain)
NC 16 NC — — Do not connect
nORT 8 O — — Reset output (open drain)
nReset 19 I Up 200k Reset input (L: reset, H/open: normal operation)
nSLEEP 18 I Down 100k Enable/disable, SPI selector
nWAKEUP 20 I Up 200k Wake-up pin for DeepSleep mode (L = WAKEUP)
OD_A 1 O — — Output for DC-DC switch mode regulator A
OD_B 25 O — — Output for DC-DC switch mode regulator B
OD_C 2 O — — Output for DC-DC switch mode regulator C
PHA / CLK 10 I Down 100k Phase input for DC motor A control / SPI CLOCK
PHB 12 I Down 100k Phase input for DC motor B control
PHC / DATA 14 I Down 100k Phase input for DC motor C control / SPI DATA
RSA / GND 30 O — — Motor drive current sensing resistor A / GND power
RSKA / GND 29 I — — Motor drive current sensing resistor A / GND Kelvin
RSB / GND 35 O — — Motor drive current sensing resistor B / GND power
RSKB / GND 34 I — — Motor drive current sensing resistor B / GND Kelvin
RSC / GND 41 O — — Motor drive current sensing resistor C / GND power
RSKC / GND 40 I — — Motor drive current sensing resistor C / GND Kelvin
TH_OUT 6 O — — Temperature warning output (open drain)
V3p3 17 O — — Bypass for internal 3.3-V regulator
VCP 44 O — — Charge pump output
VLDO_FB 22 I — — LDO voltage regulator feed back
VLDO_IN 23 I — — LDO voltage regulator input
VLDO_OUT 21 O — — LDO voltage regulator output
VM 27 — — — Voltage supply for motors and regulators
VM 32 — — — Voltage supply for motors and regulators
VM 37 — — — Voltage supply for motors and regulators
VM 38 — — — Voltage supply for motors and regulators
VM 43 — — — Voltage supply for motors and regulators
input1_lvs857.gifFigure 1. Input Pin Configuration
open_drain_lvs857.gifFigure 2. Open-Drain Output Pin Configuration