A3940KLP Allegro Microsystems Inc, A3940KLP Datasheet - Page 2

• Manufacturer Part Number: A3940KLP
• Description: IC CTRLR MOSFET FULL 28TSSOP
• Manufacturer: Allegro Microsystems Inc

Specifications of A3940KLP

• Configuration: H Bridge
• Input Type: Non-Inverting
• Delay Time: 225ns
• Current - Peak: 700mA
• Number Of Configurations: 1
• Number Of Outputs: 4
• Voltage - Supply: 7 V ~ 40 V
• Operating Temperature: -40°C ~ 135°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• High Side Voltage - Max (bootstrap): -

* Fault conditions that produce excessive junc-
tion temperature will activate device thermal
shutdown circuitry. These conditions can be
tolerated, but should be avoided.
ABSOLUTE MAXIMUM RATINGS
Load Supply Voltage Range, VBB, VD-
Output Voltage Ranges,
Logic Input/Output Voltage Range
Operating Temperature Range,
Junction Temperature, T
Storage Temperature Range,
(TSSOP with exposed
RAIN, CP1
LSS .............................. -2 V to +6.5 V
GHA/GHB, V
SA/SB, V
GLA/GLB, V
CA/CB, V
CP2,VCP, VIN ........... -0.6 V to +52 V
V
T
T
A
S
IN
thermal pad)
A3940KLP
............................ -40°C to +135°C
............................ -55°C to +150°C
, V
OUT
Approx. 2X actual size.
SX
CX
.................... -0.3 V to +6.5 V
........................
.................. -2 V to +45 V
GLX
.............. -0.6 V to +55 V
GHX
.......... -2 V to +16 V
......... -2 V to +55 V
J
.......... +150°C*
-0.6 V to +40 V
3940
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 confi guration.
voltage required for n-channel FETs. An internal charge pump for the
high side allows for dc (100% duty cycle) operation of the bridge.
down, and motor lead short-to-battery and short-to-ground fault notifi -
cation, and a programmable dead-time adjustment for cross-conduction
prevention.
TSSOP with an exposed thermal pad (package type LP), and a 28-pin
wide-body SOIC (package type LW). Both package types are available
in lead (Pb) free versions, with 100 % matte-tin leadframe plating (suf-
fi x –T).
FEATURES
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Always order by complete part number
Part Number
A3940KLPTR-T
A3940KLPTR
The A3940KLP and A3940KLW are designed specifi cally for
Bootstrap capacitors are utilized to provide the above-battery supply
Protection features include supply under/overvoltage, thermal shut-
The A3940 is supplied in a choice of two power packages, a 28-pin
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 rectifi cation
Fault diagnostic output
Adjustable dead-time cross-conduction protection
Motor lead short-to-battery and short-to-ground protection
Undervoltage/overvoltage protection
-40°C to +150°C, T
Thermal shutdown
The
overvoltage trip point is user adjustable.
Pb-free
Yes
–
J
operation
Status Package
NND
LTB
28-pin TSSOP
28-pin TSSOP
4000 pcs/reel
4000 pcs/reel
Packing