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A3940KLP 参数 Datasheet PDF下载

A3940KLP图片预览
型号: A3940KLP
PDF下载: 下载PDF文件 查看货源
内容描述: 全桥式功率MOSFET控制器 [FULL-BRIDGE POWER MOSFET CONTROLLER]
分类和应用: 控制器
文件页数/大小: 12 页 / 633 K
品牌: ALLEGRO [ ALLEGRO MICROSYSTEMS ]
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3940  
FULL-BRIDGE POWER  
MOSFET CONTROLLER  
ELECTRICAL CHARACTERISTICS: unless otherwise noted at TA = -40°C to +135°C, TJ = -40°C to +150°C,  
VIN VBB = 7 V to 40 V, Cp = 0.47 µF, Cr = 1 µF, CREG5 = 0.1 µF, CREG13 = 10 µF, CBOOT = 0.1 µF, PWM = 22.5 kHz  
square wave.  
Limits  
Characteristics  
Symbol  
Conditions  
Min  
Typ  
Max  
Units  
Bootstrap Circuit  
Diode Forward Current Limit  
Diode Forward Drop  
Diode Resistance  
ICX  
VF  
RF  
Icx  
3 V < [(VREG13 = 13.5 V) - VCX] < 12 V  
IF = 10 mA  
RF(100) = [VF(150) - VF(50)]/100  
VCX - VSX = 8 V, VBB = 40 V, GHx = 1(no load)  
140  
0.8  
1.5  
40  
1000  
2.0  
6.5  
mA  
V
Top-off CP Source Current at Cx  
µA  
Fault Logic  
VBB Undervoltage  
VBB(uv)  
VBB(uv)  
VREG13(uv)  
VREG13(uv)  
VBB(ov)  
Decreasing VBB  
VBB(recovery) - VBB(uv)  
Decreasing VIN  
4.5  
200  
7.5  
200  
16  
24  
32.5  
2.1  
5.25  
450  
8.25  
450  
19.6  
28  
36.4  
3.1  
6.0  
700  
9.0  
700  
22  
30.5  
39  
4.1  
1.4  
1.0  
V
mV  
V
mV  
V
V
V
V
µA  
µA  
V
V
V
V
V
V
V
µA  
µA  
µs  
µs  
µs  
V
µA  
°C  
°C  
VBB Undervoltage Hysteresis  
VREG13 Undervoltage  
VREG13 Undervoltage Hyst.  
VBB Overvoltage  
VREG13(recovery) - VREG13(uv)  
Increasing VBB, FAULT = 0 to 1, VOVSET = 0 V  
Increasing VBB, FAULT = 0 to 1, VOVSET = 0.45 V  
Increasing VBB, FAULT = 0 to 1, VOVSET = 0.9 V  
VBB(ov) - VBB(recovery)  
0 V < VSET(ov) < 0.9 V  
0.3 V < VDSTH < 3 V  
VDSTH = 0.3 V  
VDSTH = 1.0 V  
VDSTH = 3.0 V  
VDSTH = 0.3 V  
VDSTH = 1.0 V  
VDSTH = 3.0 V  
If VDRAIN < VDO(th), FAULT = 0 to 1  
RESET = 0  
RESET = 1, VDSTH < 3 V  
RESET = 0, pulse  
From RESET = 1 to FAULT = 0  
VBB Overvoltage Hysteresis  
OVSET Input Current  
VDSTH Input Current  
VBB(ov)  
ISET(ov)  
IDSTH  
Short-to-Ground Threshold  
VSTG(th)  
VDSTH-0.14  
VDSTH-0.18  
VDSTH-0.39  
VDSTH-0.20  
VDSTH-0.24  
VDSTH-0.37  
VDSTH+0.10  
VDSTH+0.13  
VDSTH+0.26  
VDSTH+0.30  
VDSTH+0.30  
VDSTH+0.30  
3.0  
y
Short-to-Battery Threshold  
VSTB(th)  
VDRAIN /Open Bridge Threshold  
VDRAIN /Open Bridge Current  
VDO(th)  
IVDRAIN  
1.0  
0.15  
1.0  
500  
2.0  
0.4  
1.0  
Fault Latch Clear Pulsewidth  
Fault Clear Propagation Delay  
Fault Detection Noise Filter  
Fault Output  
tlatch  
tpd  
tnoise  
Vout(0)  
Iout(1)  
TJ  
2.0  
1.7  
172  
12  
Iout = 5 mA, faults negated  
Vout = 5 V, open-drain, fault asserted  
TJ increasing  
Thermal Shutdown Temperature  
Thermal Shutdown Hysteresis  
TJ  
TJ decreasing  
NOTES: Typical Data is for design information only.  
Negative current is defined as coming out of (sourcing) the specified device terminal.  
115 Northeast Cutoff, Box 15036  
Worcester, Massachusetts 01615-0036 (508) 853-5000  
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