 English |
|
|
|
|
|
|
|
| DRV8842_15 Datasheet, PDF (5/27 Pages) Texas Instruments – DC Motor Driver IC | |||
| |||
| ◁ |
www.ti.com
DRV8842
SLVSAB8F â MAY 2010 â REVISED DECEMBER 2015
6.4 Thermal Information
THERMAL METRIC(1)
DRV8842
PWP (HTSSOP)
UNIT
28 PINS
RθJA
RθJC(top)
RθJB
ÏJT
ÏJB
RθJC(bot)
Junction-to-ambient thermal resistance
Junction-to-case (top) thermal resistance
Junction-to-board thermal resistance
Junction-to-top characterization parameter
Junction-to-board characterization parameter
Junction-to-case (bottom) thermal resistance
31.6
°C/W
15.9
°C/W
5.6
°C/W
0.2
°C/W
5.5
°C/W
1.4
°C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report, SPRA953.
6.5 Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
POWER SUPPLIES
IVM
VM operating supply current
IVMQ
VM sleep mode supply current
VUVLO
VM undervoltage lockout voltage
V3P3OUT REGULATOR
VM = 24 V, fPWM < 50 kHz
VM = 24 V
VM rising
V3P3
V3P3OUT voltage
LOGIC-LEVEL INPUTS
IOUT = 0 mA to 1 mA
VIL
Input low voltage
VIH
Input high voltage
VHYS
Input hysteresis
IIL
Input low current
IIH
Input high current
RPD
Internal pulldown resistance
nFAULT OUTPUT (OPEN-DRAIN OUTPUT)
VIN = 0
VIN = 3.3 V
VOL
Output low voltage
IOH
Output high leakage current
DECAY INPUT
IO = 5 mA
VO = 3.3 V
VIL
Input low threshold voltage
VIH
Input high threshold voltage
IIN
Input current
RPU
Internal pullup resistance (to 3.3 V)
RPD
Internal pulldown resistance
H-BRIDGE FETS
For slow decay (brake) mode
For fast decay (coast) mode
RDS(ON) HS FET on resistance
RDS(ON) LS FET on resistance
IOFF
Off-state leakage current
MOTOR DRIVER
VM = 24 V, IO = 1 A, TJ = 25°C
VM = 24 V, IO = 1 A, TJ = 85°C
VM = 24 V, IO = 1 A, TJ = 25°C
VM = 24 V, IO = 1 A, TJ = 85°C
fPWM
tBLANK
tR
tF
Internal current control PWM frequency
Current sense blanking time
Rise time
Fall time
MIN TYP MAX UNIT
5
8 mA
10
20 μA
7.8 8.2 V
3.2
3.3 3.4 V
0.6 0.7 V
2.2
5.25 V
0.3 0.45 0.6 V
â20
20 μA
33 100 μA
100
kΩ
0.5 V
1 μA
0
0.8 V
2
V
±40 μA
130
kΩ
80
kΩ
0.1
â¦
0.13 0.16
0.1
â¦
0.13 0.16
â40
40 μA
50
kHz
3.75
μs
30
200 ns
30
200 ns
Copyright © 2010â2015, Texas Instruments Incorporated
Product Folder Links: DRV8842
Submit Documentation Feedback
5
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese