參數(shù)資料
型號(hào)： DRV8800PWPR
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 運(yùn)動(dòng)控制電子
英文描述： BRUSH DC MOTOR CONTROLLER, 2.8 A, PDSO16
封裝： PLASTIC, HTSSOP-16
文件頁(yè)數(shù)： 5/27頁(yè)
文件大?。?/td> 952K
代理商： DRV8800PWPR
www.ti.com
SLVS855E – JULY 2008 – REVISED OCTOBER 2010
Control Logic Table(1)
PINS
OPERATION
PHASE
ENABLE
MODE 1
MODE 2
nSLEEP
OUT+
OUT-
1
X
1
H
L
Forward
0
1
X
1
L
H
Reverse
X
0
1
0
1
L
Brake (slow decay)
Fast-decay synchronous
1
0
1
L
H
rectification(2)
Fast-decay synchronous
0
X
1
H
L
rectification(2)
X
0
Z
Sleep mode
(1)
X = Don’t care, Z = high impedance
(2)
To prevent reversal of current during fast-decay synchronous rectification, outputs go to the high-impedance state as the current
approaches 0 A.
Overcurrent Protection
The current flowing through the high-side and low-side drivers is monitored to ensure that the motor lead is not
shorted to supply or ground. If a short is detected, the full-bridge outputs are turned off, flag nFAULT is driven
low, and a 1.2-ms fault timer is started. After this 1.2-ms period, tOCP , the device is then allowed to follow the
input commands and another turnon is attempted (nFAULT becomes high again during this attempt). If there is
still a fault condition, the cycle repeats. If after tOCP expires it is determined the short condition is not present,
normal operation resumes and nFAULT is deasserted.
Copyright 2008–2010, Texas Instruments Incorporated
13
Product Folder Link(s): DRV8800 DRV8801
相關(guān)PDF資料
PDF描述
DRW16 ROTARY CODED SWITCH-16POSITIONS, HEXADECIMAL, LATCHED, THROUGH HOLE-STRAIGHT
5-1437584-7 ROTARY CODED SWITCH-16POSITIONS, HEXADECIMAL, LATCHED, THROUGH HOLE-STRAIGHT
DS-1177 Power Dividers Space Qualified
DS-1178 Power Dividers Space Qualified
DS-117 Three-Way Power Dividers 1300 MHz
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