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PDF STK984-090A-E Data sheet ( Hoja de datos )
| Número de pieza | STK984-090A-E | |
| Descripción | 3-phase Brushless DC Motor Driver | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Ordering number : ENA2290
STK984-090A-E
Intelligent Power Module
3-phase Brushless DC
Motor Driver
http://onsemi.com
Overview
The STK984-090A-E is an Intelligent Power Module designed to be used in Brushless DC Motor.
Applications
Fan , Water pump (3-phase Motor for Automotive.)
Function
FET can be driven (built-in pre-driver IC) by microcontroller output (logic system).
Various protections (Over current Protection, Over Temperature Protection, and Low Voltage Protection, Over
Voltage Protection) are incorporated.
Intelligent DIAG Function that externally outputs each protection status, such as Over current Protection, Over
Temperature Protection.
Protection functions can be reset by external inputs.
AEC-Q100 qualified and PPAP capable.
Specifications
Absolute Maximum Ratings at Tc=25C
Parameter
Supply Voltage
Symbol
V+B1
V+B2
Control Input Voltage
Vin max
DIAG Terminal Voltage
VDIAG
Drain Current
Id max
Junction Temperature
Storage Temperature
Tj max
Tstg
+B1 to PG
+B2 to SG
Condition
UT,VT,WT,UB,VB,WB to SG
DIAG1,DIAG2 to SG
DC
Pulse (Single-Shot within 10μs)
Semiconductor Device
Ratings
0.3 to 40
0.3 to 6
0.3 to 6
20
180
150
40 to +125
Unit
V
V
V
A
A
C
C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed,
damage may occur and reliability may be affected.
Special Instruction 1
Please use this Intelligent Power Module within its absolute maximum ratings. Exceeding the absolute maximum
ratings may cause the Intelligent Power Module damage and lead to smoke or fire. ON Semiconductor assumes no
responsibility for equipment failure that result from using products at exceeding the absolute maximum ratings.
Please be sure to implement safety measures to prevent the possibility of physical injury, injury or damage caused
by fire and social damage in the event of the failure of this Intelligent Power Module, such as redundant design, anti-
fire design, and malfunction prevention design.
ORDERING INFORMATION
See detailed ordering and shipping information on page 20 of this data sheet.
Semiconductor Components Industries, LLC, 2014
March, 2014
33114HK 018-14-0006 No.A2290-1/20
1 page  
Block Diagram
STK984-090A-E
+B2(1)
UT(4)
VT(5)
WT(6)
UB(7)
VB(8)
WB(9)
DIAG1(10)
DIAG2(11)
RESET(3)
SG(2)
CP1 CP2 CP3 CP4 VG
VBB1
VCC
5VREG
OCRH VM
OHUG
OHUS
OHVG
OHVS
OHWG
OHWS
INUT
INVT
INWT
INUB
INVB
INWB
DIAG1
DIAG2
OLUG
OLVG
OLWG
OCRL
RESET
GND
CR CRT
OCRSET
PGND
VTHIN
The number in “( )” indicates the pin number.
Function Diagram
+B2(1)
5V Reg.
OVSD
/UVSD
UT(4)
VT(5)
WT(6)
UB(7)
VB(8)
WB(9)
RESET(3)
DIAG1(10)
DIAG2(11)
SG(2)
Reset
DIAG
output
Logic/
Protection
Control
High side
ISD
Low side
ISD
TSD
Temperature
Compensation
Charge
Pump
High side
Gate Drive
Circuit
Low side
Gata Drive
Circuit
+B1(20)
+B1(21)
S1(22)
S2(23)
U(12)
U(13)
V(14)
V(15)
W(16)
W(17)
SUB
PG(18)
PG(19)
S2(23)
S1(22)
+B1(20)
+B1(21)
U(12)
U(13)
V(14)
V(15)
W(16)
W(17)
SUB
PG(18)
PG(19)
NoA2290-5/20
5 Page 
STK984-090A-E
3. Short-Circuit Protection Circuit
The Short Circuit Protection Circuit monitors the VDS of the upper-phase MOSFET to detect short circuits. This
circuit detects a short circuit when the short circuit current flows over 3μsec (TYP) and shifts to the OFF operation
through the driver circuit. Also this circuit will output the abnormal detection signal as DIAG 1 and goes into the
latch-state.
This Short-Circuit Protection Circuit can release the latch by changing the reset signal from L to H but it may detect
a short circuit and go into the latch state again if the current Io is exceeding the short circuit detection range.
Also, the MOSFET Ron will be varied as the chip temperature is changing. VDS setting Voltage has to be changed
as temperature is changing in order to detect the setting current. To do this, place a thermistor as a temperature
detecting device on the substrate close to 3-phase MOSFET so this thermistor can sense the chip temperature of
MOSFET and detect the current that following the MOSFET Ron characteristics.
Short Circuit Protection Timing Chart
UT,VT,WT
U,V,W Output Voltage
Short-circuit Current
Setting Voltage
Motor Current Io
DIAG1
After detect the Short-circuit
Protection, the output is
latched OFF
Tspdgoff
Tspoff
The Short-circuit Current
Setting Current Value
3us(Typ)
NoA2290-11/20
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet STK984-090A-E.PDF ] | |
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