參數(shù)資料
型號： 2961
廠商： Allegro MicroSystems, Inc.
英文描述： HIGH-CURRENT HALF-BRIDGE PRINTHEAD/MOTOR DRIVER.WITH INTERNAL CURRENT SENSING AND CONTROL
中文描述： 大電流半橋打印頭/ DRIVER.WITH內(nèi)部電流檢測和控制電機(jī)
文件頁數(shù)： 1/12頁
文件大?。?/td> 94K
代理商： 2961
2961
HIGH-CURRENT
HALF-BRIDGE
PRINTHEAD/MOTOR DRIVER
The UDN2961B and UDN2961W are 3.4 A half bridges designed
specifically for driving solenoid printheads, stepper motors, and dc
motors. The UDN2961B/W consists of a power source driver output,
a power sink driver output, a flyback recovery diode, internal current
sensing circuitry, and a user-selectable fixed off-time chopper circuit.
The output drivers are capable of sustaining 45 V with continuous
currents of
±
3.4 A and peak transient currents of
±
4 A permitted. The
outputs have been optimized for a low output saturation voltage
(typically 2.6 V total source plus sink drops at 3.4 A).
For output current control, load current is sensed internally and
limited by chopping the output driver(s) in a user-selectable fixed off-
time PWM mode. The maximum output current is determined by the
user’s selection of a reference voltage. The MODE pin determines
whether the current control circuitry will chop in a slow current-decay
mode (only the source driver switching) or in a fast current-decay
mode (source and sink switching). A user-selectable blanking window
prevents false triggering of the current control circuitry during
chopping.
The UDN2961B is supplied in a 16-pin dual in-line plastic batwing
package with a copper lead-frame and heat sinkable tabs for improved
power dissipation capabilities. For higher power dissipation require-
ments, the UDN2961W is supplied in a 12-pin single in-line power tab
package.
FEATURES
I
3.4 A, 45 V Source and Sink Drivers
I
Internal Current Sensing
I
User-Selectable Fixed Off-Time PWM Current Control
I
Internal Flyback Diode
I
Low Output Saturation Voltage
I
Chip Enable
I
Fast or Slow Current-Decay Modes
I
Programmable Blanking Window
I
Internal Thermal Shutdown Circuitry
UDN2961B
HIGH-CURRENT HALF-BRIDGE
PRINTHEAD/MOTOR DRIVER—WITH INTERNAL
CURRENT SENSING AND CONTROL
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
BB
. . . . . . . . . . . . . .
45 V
Output Current, I
OUT
(continuous) .
±
3.4 A
(t
w
≤
20
μ
s, 10% duty cycle) . .
±
4.0 A
Logic Supply Voltage, V
CC
. . . . . . . . .
7.0 V
Input Voltage Range,
V
IN
. . . . . . . . . . . . . . .
-0.3 V to +7.0 V
Package Power Dissipation,
P
D
. . . . . . . . . . . . . . . . . . .
See Graph
Operating Temperature Range,
T
A
. . . . . . . . . . . . . . . .
-20
°
C to +85
°
C
Junction Temperature, T
J
. . . . . . .
+150
°
C*
Storage Temperature Range,
T
S
. . . . . . . . . . . . . . . -
55
°
C to +150
°
C
Output current rating may be restricted to a value
determined by system concerns and factors.
These include: system duty cycle and timing,
ambient temperature, and use of any heatsinking
and/or forced cooling. For reliable operation, the
specified maximum junction temperature should
not be exceeded.
* 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:
Part Number Package
UDN2961B
UDN2961W
16-Pin DIP
12-Pin Power-Tab SIP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
V
SOURCE OUT
EMITTER
SINK OUT
NC
GROUND
GROUND
CC
IN
ENABLE
RC
MODE
GROUND
GROUND
VREF
V
BB
INPUT
CURRENT-
CONTROL
LOGIC
V
LOAD SUPPLY
LOGIC SUPPLY
BB
Dwg. PP-035
D
2
2961
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
2961.163-L 制造商:Ferraz Shawmut 功能描述:
2961-0.5 制造商:VIDEK 功能描述:PATCH LEAD BEIGE 0.5M 制造商:VIDEK 功能描述:PATCH LEAD, BEIGE, 0.5M 制造商:VIDEK 功能描述:PATCH LEAD, BEIGE, 0.5M; Connector Type A:RJ45 Plug; Connector Type B:RJ45 Plug; Cable Length - Imperial:1.64ft; Cable Length - Metric:500mm; Jacket Colour:Beige; Cable Assembly Type:Network; Cable Length:0.5m; Colour:Beige; ;RoHS Compliant: Yes
2961-0.5B 制造商:VIDEK 功能描述:PATCH LEAD BLUE 0.5M 制造商:VIDEK 功能描述:PATCH LEAD, BLUE, 0.5M 制造商:VIDEK 功能描述:PATCH LEAD, BLUE, 0.5M; Connector Type A:RJ45 Plug; Connector Type B:RJ45 Plug; Cable Length - Imperial:1.64ft; Cable Length - Metric:500mm; Jacket Colour:Blue; Cable Assembly Type:Network; Cable Length:0.5m; Colour:Blue; Conductor ;RoHS Compliant: Yes
2961-0.5BK 制造商:VIDEK 功能描述:PATCH LEAD BLACK 0.5M 制造商:VIDEK 功能描述:PATCH LEAD, BLACK, 0.5M 制造商:VIDEK 功能描述:PATCH LEAD, BLACK, 0.5M; Connector Type A:RJ45 Plug; Connector Type B:RJ45 Plug; Cable Length - Imperial:1.64ft; Cable Length - Metric:500mm; Jacket Colour:Black; Cable Assembly Type:Network; Cable Length:0.5m; Colour:Black; ;RoHS Compliant: Yes
2961-0.5G 制造商:VIDEK 功能描述:PATCH LEAD GREEN 0.5M 制造商:VIDEK 功能描述:PATCH LEAD, GREEN, 0.5M 制造商:VIDEK 功能描述:PATCH LEAD, GREEN, 0.5M; Connector Type A:RJ45 Plug; Connector Type B:RJ45 Plug; Cable Length - Imperial:1.64ft; Cable Length - Metric:500mm; Jacket Colour:Green; Cable Assembly Type:Network; Cable Length:0.5m; Colour:Green; ;RoHS Compliant: Yes
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