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參數(shù)資料
| 型號(hào)： | 2919 |
| 廠商： | Allegro MicroSystems, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | DUAL FULL-BRIDGE PWM MOTOR DRIVER |
| 中文描述： | 雙全橋PWM電機(jī)驅(qū)動(dòng) |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大?。?/td> | 98K |
| 代理商： | 2919 |
2919
DUAL FULL-BRIDGE
MOTOR DRIVER
DUAL FULL-BRIDGE
PWM MOTOR DRIVER
A2919SB
1
2
3
4
5
6
7
8
9
9
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
θ
2
θ
1
V
CC
P
P
2
V
BB
1
GROUND
GROUND
GROUND
GROUND
02
I
12
I
PHASE
2
V
REF 2
2
RC
1
RC
V
REF 1
PHASE
1
11
I
2B
OUT
SENSE
2
2
E
2A
OUT
1A
OUT
1
E
SENSE
1
1B
OUT
01
I
LOAD
SUPPLY
LOGIC
SUPPLY
Dwg. PP-005
D
2
ABSOLUTE MAXIMUM RATINGS
at T
J
≤
150
°
C
Motor Supply Voltage, V
BB
...................
45 V
Output Current, I
OUT
(Peak, t
w
≤
20
μ
s)........................
±
1.0 A
(Continuous) ..........................
±
750 mA
Logic Supply Voltage, V
CC
...................
7.0 V
Logic Input Voltage Range,
V
IN
...............................
-0.3 V to +7.0 V
Output Emitter Voltage, V
E
..................
1.5 V
Package Power Dissipation,
P
D
.......................................
See Graph
Operating Temperature Range,
T
A
.................................
-20
°
C to +85
°
C
Storage Temperature Range,
T
S
...............................
-55
°
C to +150
°
C
Output current rating may be limited by duty cycle,
ambient temperature, and heat sinking. Under any
set of conditions, do not exceed the specified peak
current rating or a junction temperature of +150
°
C.
The A2919SB and A2919SLB motor drivers are designed to drive
both windings of a bipolar stepper motor or bidirectionally control two
dc motors. Both bridges are capable of sustaining 45 V and include
internal pulse-width modulation (PWM) control of the output current to
750 mA. The outputs have been optimized for a low output-saturation
voltage drop (less than 1.8 V total source plus sink at 500 mA).
For PWM current control, the maximum output current is deter-
mined by the user’s selection of a reference voltage and sensing
resistor. Two logic-level inputs select output current limits of 0%, 41%,
67%, or 100% of the maximum level. A PHASE input to each bridge
determines load current direction.
The bridges include both ground clamp and flyback diodes for
protection against inductive transients. Internally generated delays
prevent cross-over currents when switching current direction. Special
power-up sequencing is not required. Thermal protection circuitry
disables the outputs if the chip temperature exceeds safe operating
limits.
The A2919SB is supplied in a 24-pin dual in-line plastic batwing
package with a copper lead-frame and heat sinkable tabs for improved
power dissipation capabilities. The A2919SLB is supplied in a 24-lead
surface-mountable SOIC. Their batwing construction provides for
maximum package power dissipation in the smallest possible construc-
tion. The A2919SB/SLB are available for operation from -40
°
C to
+85
°
C. To order, change the suffix from 'S–' to 'E–'. These devices
are also available on special order for operation to +125
°
C. For
applications not requiring quarter-step operation, but desire lower
detent or running current, the similar UDN2916B/EB/LB may be pre-
ferred.
FEATURES
I
750 mA Continuous Output Current
I
45 V Output Sustaining Voltage
I
Internal Clamp Diodes
I
Internal PWM Current Control
I
Low Output Saturation Voltage
I
Internal Thermal Shutdown Circuitry
I
Half- or Quarter-Step Operation of Bipolar Stepper Motors
Always order by complete part number:
Part Number
Package
A2919SB
24-Pin DIP
A2919SLB
24-Lead SOIC
R
θ
JA
40
°
C/W
55
°
C/W
R
θ
JT
6.0
°
C/W
6.0
°
C/W
2919
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PDF描述 |
|---|---|
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 2919 SOCKET | 制造商:JKL Components Corporation 功能描述:T-3 1/4 Wedge Base Socket |
| 291-9.1/AP-RC | 功能描述:碳膜電阻器 - 透孔 9.1ohms 0.05 RoHS:否 制造商:KOA Speer 電阻:100 Ohms 容差:5 % 功率額定值:2 W 電壓額定值: 溫度系數(shù):350 PPM / C 系列: 尺寸:4.2 mm Dia. x 12 mm L 工作溫度范圍:- 55 C to + 200 C 封裝:Reel |
| 291-9.1/REEL | 功能描述:碳膜電阻器 - 透孔 USE 291-9.1/REEL-RC RoHS:否 制造商:KOA Speer 電阻:100 Ohms 容差:5 % 功率額定值:2 W 電壓額定值: 溫度系數(shù):350 PPM / C 系列: 尺寸:4.2 mm Dia. x 12 mm L 工作溫度范圍:- 55 C to + 200 C 封裝:Reel |
| 291-9.1/REEL-RC | 功能描述:碳膜電阻器 - 透孔 9.1ohms 0.05 RoHS:否 制造商:KOA Speer 電阻:100 Ohms 容差:5 % 功率額定值:2 W 電壓額定值: 溫度系數(shù):350 PPM / C 系列: 尺寸:4.2 mm Dia. x 12 mm L 工作溫度范圍:- 55 C to + 200 C 封裝:Reel |
| 291-9.1K | 功能描述:碳膜電阻器 - 透孔 9.1Kohms 5% RoHS:否 制造商:KOA Speer 電阻:100 Ohms 容差:5 % 功率額定值:2 W 電壓額定值: 溫度系數(shù):350 PPM / C 系列: 尺寸:4.2 mm Dia. x 12 mm L 工作溫度范圍:- 55 C to + 200 C 封裝:Reel |
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