A3985SLDTR-T View Datasheet(PDF) - Allegro MicroSystems
Part Name
Description
MFG CO.
'A3985SLDTR-T' PDF : 15 Pages View PDF
A3985
Digitally Programmable
Dual Full-Bridge MOSFET Driver
ELECTRICAL CHARACTERISTICS at TA = 25°C, VDD = 5 V, VBB = 12 to 50 V, unless noted otherwise
Characteristics
Symbol
Test Conditions
Min. Typ.
Supply and Reference
Load Supply Voltage Range
Load Supply Current
VBB
IBB
fMCK = 4 MHz, CLOAD = 1000 pF
ENABLE = High, outputs disabled
12
–
–
–
–
–
Load Supply Idle Current
Logic Supply Voltage Range
Logic Supply Current
Logic Supply Idle Current
Regulator Output
Bootstrap Diode Forward Voltage
Gate Output Drive
IBBQ
VDD
IDD
IDDQ
VREG
VfBOOT
Word1:Bit D18 = 0
Word1:Bit D18 = 0
IREGInt = 30 mA
IfBOOT = 10 mA
–
–
3.0
–
–
–
–
–
11.25
–
0.6
0.8
Turn-On Rise Time
Turn-Off Fall Time
Turn-On Propagation Delay
Turn-Off Propagation Delay
Crossover Dead Time
tr
tf
tp(on)
tp(off)
tDEAD
CLOAD = 1000 pF, 20% to 80%
CLOAD = 1000 pF, 80% to 20%
ENABLE low to gate drive on
ENABLE high to gate drive off
fMCK = 4 MHz,
Word1:Bits D1 and D2 = 00
80
120
40
60
–
120
–
120
0.5
–
Pull-Up On Resistance
Pull-Down On Resistance
Short-Circuit Current – Source1
Short-Circuit Current – Sink
GHx Output Voltage
GLx Output Voltage
RDS(on)UP
RDS(on)DN
ISC(source)
ISC(sink)
VGHx
IGH = –25 mA
IGL = 25 mA
CBOOTx fully charged
VGLx
30
14
–140
160
VC – 0.2
VREG –
0.2
40
19
–110
200
–
–
Logic Inputs
Input Low Voltage
Input High Voltage
Input Hysteresis
Input Current1
Output Low Voltage
VIL
VIH
VIHys
IIN
VOL
SDO, IOL= 0.5 mA
–
–
0.7 VDD
–
150
300
–1
–
Output High Voltage
VOH SDO, IOH= –0.3 mA
VDD –
0.5
Output Leakage current1
IOleak SDO, STR = 1, 0 V< VO< VDD
–1
Max. Units
50
V
10 mA
6
mA
100 μA
5.5
V
10 mA
300 μA
13
V
1
V
160 ns
80
ns
–
ns
–
ns
0.75 μs
55
Ω
24
Ω
–80 mA
250 mA
–
V
–
V
0.3 VDD V
–
V
–
mV
1
μA
0.5
V
V
1
μA
Continued on the next page...
Allegro MicroSystems, Inc.
4
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
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