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A4915METTR-T Datasheet, PDF (5/17 Pages) Allegro MicroSystems – 3-Phase MOSFET Driver
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A4915
3-Phase MOSFET Driver
ELECTRICAL CHARACTERISTICS (continued) Valid at TA = 25°C, VBB = 24 V; unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
Typ.
Protection (continued)
Bootstrap Undervoltage
Bootstrap Undervoltage Hysteresis
VDD Undervoltage
VDD Undervoltage Hysteresis
Sleep Wake-up Delay
Gate Drive
VBOOTUV Measured as a percentage of VREG
VBOOTUVhys Measured as a percentage of VREG
VDDUV
VDD rising
VDD falling
VDDUVhys
tWAKE
55
–
–
20
–
2.75
2.45
2.6
50
100
–
–
High-Side Gate Drive Output
Low-Side Gate Drive Output
Gate Drive Pull-Up Resistance
Gate Drive Pull-Down Resistance
GHx Passive Pull-Down
GLx Passive Pull-Down
Output Switching Time
VGHx
CBOOTx fully charged, CLOAD = 10 nF
IGHx < 10 μA
VGLx
VREG = 13 V, CLOAD = 10 nF
IGLx < 10 μA
RGHx(ON)UP
TJ = 25°C, IGHx = –150 mA
TJ = 125°C, IGHx = –150 mA
RGLx(ON)DN
TJ = 25°C, IGLx = –150 mA
TJ = 125°C, IGLx = –150 mA
RGHx(PPD) VGHx – VSx < 0.3 V
RGLx(PPD) VGLx – VLSS < 0.3 V
trGx
20% to 80%, CLOAD = 10 nF
tfGx
80% to 20%, CLOAD = 10 nF
TDEAD tied to GND
VCx – 0.2
–
VREG – 0.2
–
6
–
2.4
–
–
–
–
–
10
–
–
–
–
9
17
3.5
5
5000
5000
200
150
–
Dead Time
Logic I/O
tDEAD
Time delay measured
from turn-off to turn-on
RTDEAD = 12 kΩ
RTDEAD = 64 kΩ
RTDEAD = 220 kΩ
–
150
800
925
–
2.9
Logic Input Voltage
Logic Input Current
FAULT Output Voltage
ENABLE and SPEED Sleep Timer
VIN(H) BRAKEn, DIR, ENABLE, HA, HB, and HC pins 0.7 × VDD
–
VIN(L)
–
–
IIN(H)
VIN = high
–
10
IIN(L) VIN = low, ENABLE = low
–1
0
VFAUlT No fault present, ISINK = 1mA
–
–
tSLEEP
ENABLE = low, SPEED = high
ENABLE = high, SPEED = low
1
2
1
2
Max.
65
–
2.95
–
150
3
–
VSx + 0.3
–
0.3
12
–
4.6
–
–
–
–
–
–
–
1050
–
–
0.3 × VDD
–
1
0.2
3
3
Unit
%
%
V
V
mV
ms
V
V
V
V
Ω
Ω
Ω
Ω
Ω
Ω
ns
ns
ns
ns
ns
μs
V
V
μA
μA
V
ms
ms
Continued on the next page…
Allegro MicroSystems, LLC
5
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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