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A3935KJP

更新时间： 2024-01-22 17:22:31

品牌	Logo	应用领域
急速微 - ALLEGRO		控制器
页数	文件大小	规格书
16页	317K
描述
3-PHASE POWER MOSFET CONTROLLER

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A3935KJP 数据手册

3935

3-PHASE POWER MOSFET CONTROLLER

— For Automotive Applications

The A3935 is designed specifically for automotive applications that

require high-power motors. Each provides six high-current gate drive

outputs capable of driving a wide range of n-channel power MOSFETs.

Package ED, 44-Pin PLCC

A requirement of automotive systems is steady operation over a

varying battery input range. The A3935 integrates a pulse-frequency

modulated boost converter to create a constant supply voltage for

driving the external MOSFETs. Bootstrap capacitors are utilized to

provide the above battery supply voltage required for n-channel FETs.

Package JP, 48-Pin LQFP

Package LQ, 36-Pin SOIC

Direct control of each gate output is possible via six TTL-compat-

ible inputs. A differential amplifier is integrated to allow accurate

measurement of the current in the three-phase bridge.

Diagnostic outputs can be continuously monitored to protect the

driver from short-to-battery, short-to-supply, bridge-open, and battery

under/overvoltage conditions. Additional protection features include

dead-time, VDD undervoltage, and thermal shutdown.

The A3935 is supplied in a choice of three packages, a 44-lead

PLCC with copper batwing tabs (suffix ED), a 48-lead low profile QFP

with exposed thermal pad (suffix JP), and a 36-lead 0.8 mm pitch SOIC

(suffix LQ).

ABSOLUTE MAXIMUM RATINGS

Load Supply Voltages, VBAT, VDRAIN,

VBOOST, BOOSTD ... -0.6 V to 40 V

Output Voltage Ranges,

FEATURES

GHA/GHB/GHC, V_GHX.. -4 V to 55 V

SA/SB/SC, V_SX............... -4 V to 40 V

GLA/GLB/GLC, V_GLX.... -4 V to 16 V

CA/CB/CC, V_CX.......... -0.6 V to 55 V

Sense Circuit Voltages,

CSP,CSN, LSS ............... -4 V to 6.5 V

Logic Supply Voltage,

V_DD........................... -0.3 V to +6.5 V

Logic Input/Outputs and OVSET, BOOSTS,

CSOUT, VDSTH ......... -0.3 V to 6.5 V

Operating Temperature Range,

! Drives wide range of n-channel MOSFETs in 3-phase bridges

! PFM boost converter for use with low-voltage battery supplies

! Internal LDO regulator for gate-driver supply

! Bootstrap circuits for high-side gate drivers

! Current monitor output

! Adjustable battery overvoltage detection.

! Diagnostic outputs

Motor lead short-to-battery, short-to-ground, and

bridge-open protection

Undervoltage protection

! -40 °C to +150 °C, T_Joperation

! Thermal shutdown

T_A........................... -40°C to +135°C

Junction Temperature, T_J........... +150°C

Storage Temperature Range,

T_S........................... -55°C to +150°C

* Fault conditions that produce excessive

junction temperature will activate device

thermal shutdown circuitry. These conditions

can be tolerated, but should be avoided.

Always order by complete part number, e.g., A3935KLQ .

12 3 4 5 6 7...16

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