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A6862 の電気的特性と機能

A6862のメーカーはAllegroです、この部品の機能は「Automotive 3-Phase Isolator MOSFET Driver」です。


製品の詳細 ( Datasheet PDF )

部品番号 A6862
部品説明 Automotive 3-Phase Isolator MOSFET Driver
メーカ Allegro
ロゴ Allegro ロゴ 




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A6862 Datasheet, A6862 PDF,ピン配置, 機能
A6862
Automotive 3-Phase Isolator MOSFET Driver
FEATURES AND BENEFITS
• Three floating n-channel MOSFET drives
• Maintains VGS with 100 kgate-source resistors
• Integrated charge pump controller
• 4.5 to 50 V supply voltage operating range
• Two independent activation inputs
• Single phase-enable input
• VCP and VGS undervoltage protection
• 150°C ambient (165°C junction) continuous
APPLICATIONS
• 3-phase disconnect for ASIL systems up to level D
• Electric power steering (EPS)
• Electric braking
• 3-phase solid-state relay driver
PACKAGE:
16-lead TSSOP with exposed thermal pad (suffix LP)
Not to scale
DESCRIPTION
The A6862 is an n-channel power MOSFET driver capable
of controlling MOSFETs connected as a 3-phase solid-state
relay in phase-isolation applications. It has three independent
floating gate drive outputs to maintain the power MOSFETs in
the on-state over the full supply range with high phase-voltage
slew rates. An integrated charge pump regulator provides the
above battery supply voltage necessary to maintain the power
MOSFETs in the on-state continuously when the phase voltage
is equal to the battery voltage. The charge pump will maintain
sufficient gate drive (>7.5 V) for battery voltages down to 4.5 V
with 100 kΩ gate source resistors.
The three gate drives can be controlled by a single logic-level
input. In typical applications, the MOSFETs will be switched
on within 8 µs and will switch off within 1 µs.
Two independent activation inputs can be used to put theA6862
into a low-power sleep mode with the charge pump disabled.
Undervoltage monitors check that the pumped supply voltage
and the gate drive outputs are high enough to ensure that the
MOSFETs are maintained in a safe conducting state.
The A6862 is supplied in a 16-lead TSSOP (LP) with exposed
pad for enhanced thermal dissipation. They are lead (Pb) free,
with 100% matte-tin leadframe plating.
A4405
Regulator
Micro-
Controller
A4910
A4935
A4937
A4939
VBAT
A6862
3-Phase
BLDC
Motor
A6862-DS
Figure 1: Typical Application Diagram

1 Page





A6862 pdf, ピン配列
A6862
Automotive 3-Phase Isolator MOSFET Driver
PINOUT DIAGRAM AND TERMINAL LIST TABLE
VBB 1
CP4 2
CP3 3
CP2 4
CP1 5
IG 6
POK 7
ENA 8
PAD
16 VCP
15 GU
14 SU
13 GV
12 SV
11 GW
10 SW
9 GND
Package LP, 16-Pin TSSOP Pinout Diagram
Terminal List Table
Name
Number
CP1 5
CP2 4
CP3 3
CP4 2
ENA
6
GND
9
GU 15
GV 13
GW 11
IG 8
POK
7
SU 14
SV 12
SW 10
VBB
1
VCP
16
PAD –
Description
Pump capacitor connection
Pump capacitor connection
Pump capacitor connection
Pump capacitor connection
Phase enable input
Ground
U-phase MOSFET gate drive
V-phase MOSFET gate drive
W-phase MOSFET gate drive
Ignition input
Power OK input
U-phase MOSFET source reference
V-phase MOSFET source reference
W-phase MOSFET source reference
Main power supply
Pumped supply
Exposed pad; connect to GND
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
3


3Pages


A6862 電子部品, 半導体
A6862
Automotive 3-Phase Isolator MOSFET Driver
ELECTRICAL CHARACTERISTICS (continued): Valid at TJ = –40 to 150°C, VBB = 4.5 to 50 V, unless noted otherwise
Characteristics
Symbol
Test Conditions
Min.
Typ.
Max.
LOGIC INPUTS AND OUTPUTS
ENA Input Low Voltage
ENA Input High Voltage
ENA Input Hysteresis
ENA Input Pull-Down Resistor
ENA Output Low Voltage
POK, IG Input High Voltage
POK, IG Input Low Voltage
POK, IG Input Pull-Down Resistor
DIAGNOSTICS AND PROTECTION
VIL
VIH
VIhys
RPD
VOLF
VIH
VIL
RPD
Any VGS or VCP undervoltage, IOL = –0.5 mA [2]
––
0.7 –
120 200
– 100
1.1 1.0
2.0 –
––
– 100
0.4
0.9
0.8
VGS Undervoltage Threshold Rising
VGS Undervoltage Threshold
Hysteresis
VGSUV
VGShys
6.0 – 7.0
– 200 –
VGS Undervoltage Filter Time
VCP Undervoltage Filter Time
VCP Startup Blank Timer
VCP Undervoltage Lockout
tGSUV
tCPUV
tCPON
VCPON
VCPOFF
VCP w.r.t. VBB, VCP rising
VCP w.r.t. VBB, VCP falling
3.7 – 18
– 12.5 –
– 100 –
6.5 7.0 7.5
6.25 6.75 7.25
1 Function is correct but parameters are not guaranteed below the general limits (4.5 to 50 V).
2 For input and output current specifications, negative current is defined as coming out of (sourcing) the specified device terminal.
3 Refer to Figure 2.
Units
V
V
mV
V
V
V
V
mV
µs
µs
µs
V
V
ENA
VGSx
tPON
80%
tPOFF
80%
20% 20%
tR
Figure 2: Enable Input to VGS Timing
tf
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
6

6 Page



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部品番号部品説明メーカ
A6862

Automotive 3-Phase Isolator MOSFET Driver

Allegro
Allegro


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