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A3940KLP Datasheet

  • A3940KLP

  • FULL-BRIDGE POWER MOSFET CONTROLLER

  • 633.37KB

  • 12頁

  • ALLEGRO   ALLEGRO

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Data Sheet
29319.100g
3940
FULL-BRIDGE POWER MOSFET CONTROLLER
鈥?For Automotive Applications
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The A3940KLP and A3940KLW are designed specifically for
automotive applications that require high-power motors. Each provides
four high-current gate drive outputs capable of driving a wide range of
n-channel power MOSFETs in a full-bridge configuration.
Bootstrap capacitors are utilized to provide the above-battery
supply voltage required for n-channel FETs. An internal charge pump
for the high side allows for dc (100% duty cycle) operation of the
bridge.
Protection features include supply under/overvoltage, thermal
shutdown, and motor lead short-to-battery and short-to-ground fault
notification, and a programmable dead-time adjustment for cross-
conduction prevention.
The
overvoltage trip point is user adjustable.
The A3940 is supplied in a choice of two power packages, a 28-
lead TSSOP with an exposed thermal pad (suffix LP), and a 28-lead
wide-body SOIC (suffix LW).
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A3940KLP
(TSSOP with exposed
thermal pad)
A3940KLW
(SOIC)
Approx. 2X actual size.
ABSOLUTE MAXIMUM RATINGS
Load Supply Voltage Range, VBB,
VDRAIN, CP1 ..........
-0.6 V to +40 V
Output Voltage Ranges,
LSS ..............................
-2 V to +6.5 V
GHA/GHB, V
GHX
........
-2 V to +55 V
SA/SB, V
SX
..................
-2 V to +45 V
GLA/GLB, V
GLX
..........
-2 V to +16 V
CA/CB, V
CX
..............
-0.6 V to +55 V
CP2,VCP, VIN ..........
-0.6 V to +52 V
Logic Input/Output Voltage Range
V
IN
, V
OUT
...................
-0.3 V to +6.5 V
Operating Temperature Range,
T
A
...........................
-40擄C to +135擄C
Junction Temperature, T
J
.........
+150擄C*
Storage Temperature Range,
T
S
...........................
-55擄C to +150擄C
* Fault conditions that produce excessive
junction temperature will activate device
thermal shutdown circuitry. These conditions
can be tolerated, but should be avoided.
FEATURES
!
Drives wide range of n-channel MOSFETs
!
Charge pump to boost gate drive at low-battery-input conditions
!
Bootstrapped gate drive with charge pump for 100% duty cycle
!
Synchronous rectification
!
Fault diagnostic output
!
Adjustable dead-time cross-conduction protection
!
Motor lead short-to-battery and short-to-ground protection
!
Undervoltage/overvoltage protection
!
-40擄C to +150擄C, T
J
operation
!
Thermal shutdown
Always order by complete part number, e.g.,
A3940KLP
.

A3940KLP 產(chǎn)品屬性

  • 50

  • 集成電路 (IC)

  • PMIC - MOSFET，電橋驅(qū)動(dòng)器 - 外部開關(guān)

  • -

  • 半橋

  • 非反相

  • 225ns

  • 700mA

  • 1

  • 4

  • -

  • 7 V ~ 40 V

  • -40°C ~ 135°C

  • 表面貼裝

  • 28-SOIC（0.173"，4.40mm 寬）裸露焊盤

  • 28-TSSOP 裸露焊盤

  • 管件

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