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參數(shù)資料
| 型號： | 3935 |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | 3-PHASE POWER MOSFET CONTROLLER |
| 中文描述： | 3相功率MOSFET控制器 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 317K |
| 代理商： | 3935 |
Always order by complete part number, e.g.,
A3935KLQ
.
D
2
b
3-PHASE POWER MOSFET CONTROLLER
— For Automotive Applications
3935
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.
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.
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).
FEATURES
!
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
J
operation
!
Thermal shutdown
ABSOLUTE MAXIMUM RATINGS
Load Supply Voltages, VBAT, VDRAIN,
VBOOST, BOOSTD ...
-0.6 V to 40 V
Output Voltage Ranges,
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,
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.
Package ED, 44-Pin PLCC
Package JP, 48-Pin LQFP
Package LQ, 36-Pin SOIC
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 3935 (36 IN X 50 YD) | 制造商:3M Electronic Products Division 功能描述:3M(TM) HIGH INTENSITY GRADE PRISMATIC REFLECTIVE SHEETING 3935 BLUE, 36 IN X 50 |
| 3935 BLU 24"X50YD | 功能描述:HIGH INTENSITY GRADE PRISMATIC R 制造商:3m 系列:* 零件狀態(tài):在售 標(biāo)準(zhǔn)包裝:1 |
| 3935 BLU 30"X50YD | 功能描述:HIGH INTENSITY GRADE PRISMATIC R 制造商:3m 系列:* 零件狀態(tài):在售 標(biāo)準(zhǔn)包裝:1 |
| 3935 BLU 36"X50YD | 功能描述:HIGH INTENSITY GRADE PRISMATIC R 制造商:3m 系列:* 零件狀態(tài):在售 標(biāo)準(zhǔn)包裝:1 |
| 3935 BLU 48"X50YD | 功能描述:HIGH INTENSITY GRADE PRISMATIC R 制造商:3m 系列:* 零件狀態(tài):在售 標(biāo)準(zhǔn)包裝:1 |
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