- 您现在的位置：买卖IC网 > PDF目录1773 > A3998SETTR-T (Allegro Microsystems Inc)IC MOTOR DRIVER DUAL DMOS QFN PDF资料下载
参数资料
| 型号： | A3998SETTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 5/20页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR DRIVER DUAL DMOS QFN |
| 标准包装： | 1 |
| 应用： | 直流电机驱动器，PWM 电机驱动器，步进电机驱动器 |
| 输出数： | 1 或 2 |
| 电流 - 输出： | ±1.5A |
| 电压 - 负载： | 9 V ~ 50 V |
| 电源电压： | 3 V ~ 5.5 V |
| 工作温度： | -20°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VFQFN 裸露焊盘 |
| 供应商设备封装： | 32-QFN |
| 包装： | 标准包装 |
| 其它名称： | 620-1459-6 |
A3998
Dual DMOS Full Bridge Motor Driver
With Serial Port Control and Dual Regulators
ELECTRICAL CHARACTERISTICS 1,2 (continued) Valid at T J = 25°C, V BB = 50 V; unless otherwise specified
Characteristics
Symbol
Test Conditions
Min.
Typ. 3
Max.
Unit
DC to DC Converter
Feedback Voltage Regulation 4
Feedback Input Bias Current
Soft Start Duration
Current Limit
Fixed Off-time
Buck Switch On-Resistance
V FB1
I FB1
t SS
I CLREG
I CLFB
t OFF
R DS(on)SW
Does not include Cycle Skipping mode
(V = 9 to 50 V, I = 100 mA to 1 A)
Cycle Skipping mode
V BB = 9 V
V FB > 400 mV
V FB < 400 mV
V OUT
I = 1 A, T J = 25°C
0.98
0.95
–400
5
1.5
.5
–
–
1
1
–
10
–
–
4
0.6
1.02
1.05
100
15
2.7
1.2
–
–
V
V
nA
ms
A
A
μ s
Ω
Low Drop-Out Regulator
Feedback Voltage
Internal Current Limit
External Current Limit Threshold
VIN Pin Voltage Range
V FB2
I CL2
V CL2
V IN
I = 0 to 500 mA
CSN connected to VREG
CSN connected to sense resistor
.98
525
180
V OUT +0.6
1
–
200
–
1.02
750
220
5.5
V
mA
mV
V
Control Circuit
VREF Pin Input Voltage Range
Reference Input Current
Transconductance Error 5
Internal Oscillator Frequency
V REFRNG
I REF
Gm ERR
f osc
Operating
V REF = 2.0, V BB = 0 to 50 V
V REF = 2.0, DAC = 15
V REF = 2.0, DAC = 3
0.0
–
–4
–10
3.4
–
–
–
–
4
2.6
±1
4
10
4.6
V
μ A
%
%
MHz
1 Negative
2 Specified
current is defined as coming out of (sourcing) the specified device pin.
limits are tested at a single temperature and assured over the range 0°C to 125°C by design and characterization.
3 Typical data is for design information only.
4 Average value of V OUT relative to target.
5 Gm ERR =[(V REF × Current_Ratio / 5) – V SENSE ] / (V REF × Current_Ratio / 5).
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
5
相关PDF资料 |
PDF描述 |
|---|---|
| A4401KL-T | IC QUASI FLYBACK CONVERTER 8SOIC |
| A4403GEUTR-T | IC REG BUCK ADJ 3A 16QFN |
| A4447SLJTR-T | IC REG BUCK ADJ 2A 8SOIC |
| A4490EES-T | IC REG BUCK ADJ 1.5A TRPL 20QFN |
| A4491EESTR-T | IC REG BUCK ADJ 2.2A TRPL 20QFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| A399B | 制造商:Powerex Power Semiconductors 功能描述:DIODE FAST 400A 200V DO-200AA |
| A399D | 制造商:Powerex Power Semiconductors 功能描述:DIODE FAST 400A 400V DO-200AA |
| A399D8U0AP | 制造商:Panasonic Industrial Company 功能描述:LEVER |
| A399E | 制造商:n/a 功能描述:Power Semiconductor |
| A399M | 制造商:Powerex Power Semiconductors 功能描述:DIODE FAST 400A 600V DO-200AA |
发布紧急采购，3分钟左右您将得到回复。