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DRV594 +/-3A 高效 PWM 功率驱动器

The DRV593 and DRV594 are high-efficiency, high-current power amplifiers ideal for driving a wide variety of thermoelectric cooler elements in systems powered from 2.8 V to 5.5 V. The operation of the device requires only one inductor and capacitor for the output filter, saving significant printed-circuit board area. Pulse-width modulation (PWM) operation and low output stage on-resistance significantly decrease power dissipation in the amplifier.

The DRV593 and DRV594 are internally protected against thermal and current overloads. Logic-level fault indicators signal when the junction temperature has reached approximately 128°C to allow for system-level shutdown before the amplifier’s internal thermal shutdown circuitry activates

	DRV590	DRV592	DRV593	DRV594
Vs (Min) (V)	2.7
Vs (Max) (V)	5.5
Output Current (Min) (A)	1.2
Saturation Voltage (Max) (V)	0.48	0.195	0.195	0.195
rDS(on) (Ohms)	0.4	0.065	0.06	0.06
Switching Frequency (Single-Ended) (kHz)	500
Iq (mA)	4	7	4	4
Operating Temperature Range (C)	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Pin/Package	20SO PowerPAD, 48BGA MICROSTAR JUNIOR	32HLQFP	32HLQFP	32HLQFP

DRV594 特性

• Operation Reduces Output Filter Size and Cost by 50% Compared to DRV591
• ±3-A Maximum Output Current
• Low Supply Voltage Operation: 2.8 V to 5.5 V
• High Efficiency Generates Less Heat
• Overcurrent and Thermal Protection
• Fault Indicators for Overcurrent, Thermal and Undervoltage Conditions
• Two Selectable Switching Frequencies
• Internal or External Clock Sync
• PWM Scheme Optimized for EMI
• 9×9 mm PowerPAD™ Quad Flatpack Package
• APPLICATIONS
• Thermoelectric Cooler (TEC) Driver
• Laser Diode Biasing

DRV594 芯片订购指南

器件	状态	温度	价格	封装 | 引脚	封装数量 | 封装载体	丝印标记
DRV594VFP	ACTIVE	-40 to 85	15.00 | 1ku	HLQFP (VF) | 32	250 | JEDEC TRAY (10+1)
DRV594VFPG4	ACTIVE	-40 to 85		HLQFP (VF) | 32
DRV594VFPR	ACTIVE	-40 to 85	13.50 | 1ku	HLQFP (VF) | 32	1000 | LARGE T&R
DRV594VFPRG4	ACTIVE	-40 to 85		HLQFP (VF) | 32

DRV594 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
DRV594VFP	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	DRV594VFP	DRV594VFP
DRV594VFPG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	DRV594VFPG4	DRV594VFPG4
DRV594VFPR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	DRV594VFPR	DRV594VFPR
DRV594VFPRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	DRV594VFPRG4	DRV594VFPRG4

DRV594 应用技术支持与电子电路设计开发资源下载

1. DRV594 数据资料 dataSheet 下载.PDF
2. TI 德州仪器特殊功能放大器产品选型与价格 . xls
3. 所选封装材料的热学和电学性质 (PDF 645 KB)
4. 高速数据转换 (PDF 1967 KB)
5. 使您的仪器放大器设计达到最佳效果 (zhct011.PDF, 897 KB)
6. 低成本电流并联监视器 IC 使动圈式仪表设计复兴 (zhct030.PDF, 1.04 MB)
7. Demystifying the Operational Transconductance Amplifier (sboa117.HTM, 8 KB)
8. Using the DRV594 with the DRV594 to Generate 4mA to 20mA Output (PDF 167 KB)
9. 在 PSPICE 中使用德州仪器 (TI) SPICE 模型 (zhca088.HTM, 8 KB)
10. PowerPAD™ Thermally Enhanced Package (slma002g.HTM, 8 KB)
11. 运算放大器的单电源操作 (PDF 2174 KB)
12. Tuning in Amplifiers (PDF 44 KB)
13. Op Amp Performance Analysis (PDF 76 KB)
14. An Error Analysis of the ISO102 in a Small Signal Measuring Application (PDF 29 KB)
15. Level Shifting Signals with Differential Amplifiers (PDF 23 KB)
16. Operational Amplifier Macromodels: A Comparison (PDF 59 KB)

DRV594 工具与软件

培训内容	型号	软件/工具类型
DRV594EVM 评估模块	DRV594EVM	开发电路板/EVM