• Ability to Interface and Drive Standard and Current
Sensing N-Channel Power MOSFET/IGBT Devices
• Creation and Management of a Floating Power Supply
for Upper Rail Drive
• Simultaneous Conduction Lockout
PROCESS OBSOLETE
NO NEW DESIGNS
SP600
July 1998File Number2428.4
Half Bridge 500VDC Driver
The SP600 is a smart power high voltage integrated circuit
(HVIC) optimized to drive MOS gated power devices in halfbridge topologies. It provides the necessary control and
management for PWM motor drive, power supply, and UPS
applications.
• Overcurrent Protection
• Single Low Current Bias Supply Operation
• Latch Immune CMOS Logic
• Peak Drive in Excess of 0.5A
Pinout
1
FAULT
I
2
TRIPSEL
V
3
BIAS
V
4
DD
V
5
SS
TRIP
6
L
7
CL1
G2L
8
G1L
9
D1L
10
V
11
DF
SP600 (PDIP)
TOP VIEW
22
TOP
21
BOT
20
NC
D1U
19
G1U
18
G2U
17
CL2
16
TRIP
15
PHAS
14
V
13
OUT
V
12
BS
Functional Block Diagram
10Ω R
V
BIAS
3
V
DD
4
V
DF
11
U
TOP
22
BOT
21
FAULT
1
I
TRIPSEL
2
3.5Ω R
750Ω R
ND
BS
Ordering Information
PARTTEMPERATUREPACKAGE
SP600-40oC to +85oC22 Lead Plastic DIP
V
BS
12
D1U
19
3.5Ω R
G1U
18
G2U
17
TRIP
15
CL2
16
PHASE
14
O
13
D1L
10
G1L
9
G2L
8
TRIP
6
CL1
7
V
SS
5
U
V
OUT
LOWERUPPER
L
I
ONT
I
LEVEL
OFFT
SHIFT
UV
LOCK
OUT
I
TRIPSEL
I
ONB
I
I
TRIPSEL
OFFB
UV
LOCK
OUT
CMOS
TIMING
AND
CONTROL
F
S
Q
R
FILTER
FAULT
V
OUT
SENSE
AND
FILTER
S
Q
R
+
-
S
Q
R
S
Q
R
+
-
S
Q
R
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Dynamic High Voltage Rating Phase,. . . . . . . . . . . . . 10,000V/µs
DV
PHASE/DT
NOTES:
1. Care must betaken inthe application of V
Prolonged high peakcurrents mayresult if+15V
If it is desirable to switch the 15V
2. Consult factory for additional package offerings.
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
source or if a CDD is larger, additional series impedance may be required.
DC
Electrical Specifications(V
asnot toimpose high peak dissipation demands on arelatively smallmetallized noise dropping resistor (RND).
= 15V, Pulsed <300ms), Unless Otherwise Noted, All Parameters Referenced to
VSSExcept TRIPU, CL2, G1U, D1U, and VBSReferenced to PHASE. DF:VDFto VBS,
CF: VBS to PHASE
PARAMETERSYMBOLTEMPMINTYPMAXUNITS
DC CHARACTERISTICS
Input Current (5V < V
TOP
, V
BOT
, V
TRIPSEL
< 15V)I
IN
+25oC-2030µA
-40oC to +85oC-3033µA
I
Quiescent Current (All Inputs Low)I
BIAS
BIAS
L
+25oC-1.72.05mA
-40oC to +85oC-1.72.1mA
I
Quiescent Current
BIAS
(V
≥ V
OUT
, and All Inputs Low)
BIAS
IBS Quiescent Current Bootstrap SupplyI
I
BIAS
BS
H
+25oC-1.72.05mA
-40oC to +85oC-1.72.1mA
+25oC-8751000µA
-40oC to +85oC-9001060µA
TOP Threshold LevelV
TOP
+25oC 789V
-40oC to +85oC6.9589.1V
BOTTOM Threshold LevelV
BOT
+25oC 789V
-40oC to +85oC6.989.1V
Current TRIPSELECT Threshold LevelV
TRIPSEL
+25oC 789V
-40oC to +85oC6.9589.1V
Trip Lower and Upper Comparator Threshold
Level - Normal (I
TRIPSEL
= VSS)
Trip Lower and Upper Comparator Threshold
Level - Boost (I
V
TRIP L/U
N
TRIPSEL
= VDD) % of Measured
Under Voltage Lockout Thresholds (VDD and VBS)V
V
TRIP L/U
V
TRIP L/U
LOCK
N
+25oC90105125mV
-40oC to +85oC90105127mV
B
+25oC110130150%
-40oC to +85oC109130152%
+25oC91011.5V
-40oC to +85oC9.710.511.8V
Phase Out of Status Voltage Threshold (PHASE)V
OSVT
+25oC 579V
-40oC to +85oC4.779.6V
2
Page 3
SP600
Electrical Specifications(V
= 15V, Pulsed <300ms), Unless Otherwise Noted, All Parameters Referenced to
BIAS
VSSExcept TRIPU, CL2, G1U, D1U, and VBSReferenced to PHASE. DF:VDFto VBS,
CF: VBS to PHASE (Continued)
PARAMETERSYMBOLTEMPMINTYPMAXUNITS
Faultbar Impedance at I
Upper/LowerSourceImpedances(I
Upper/Lower Sink Impedances (I
= 1mARF+25oC5007601000Ω
FBAR
SOURCE
SINK
=10mA)R
= 10mA)R
Bootstrap Supply Current Limiting ImpedanceR
Noise Dropping Resistor ImpedanceR
High Voltage Leakage (500V VBS, V
OUT
, PHASE,
TRIPU, CL2, G1U, G2U, and D1U to VSS. All other
Pins at VSS)
Miller Clamp Diodes; D1U and D1L (ID = 10mA)V
Noise Clamping Zeners; CL2 and CL1 (IZ = 10mA)V
CL2/1-LOW
Noise Clamping Zeners; CL2 and CL1 (IZ = 50mA)V
V
Limiting ResistanceR
OUT
NOTE: Maximum Steady State ÷ 15VDC Supply Current = I
SO L/U
SI L/U
BS
ND
I
LK
D1U/L
CL2/1-
HIGH
O
BIAS
-40oC to +85oC4507601100Ω
+25oC 121723Ω
-40oC to +85oC71729Ω
+25oC81216Ω
-40oC to +85oC51220Ω
+25oC23.55Ω
-40oC to +85oC1.43.55.6Ω
+25oC61014Ω
-40oC to +85oC5.41014.6Ω
+25oC-13µA
+25oC0.400.901.40V
+25oC6.356.616.85V
-40oC to +85oC6.156.617.15V
+25oC7.08.58.0V
+25oC23.55Ω
-40oC to +85oC1.43.55.6Ω
÷I
BS
L
Switching Specifications (All Referenced to V
DF: VDF to VBS, CF: VBS to PHASE)
PARAMETERSYMBOLTEMPMINTYPMAXUNITS
Refresh One Shot Timert
Delay Time of Trip I/U Voltage (I
TRIPSEL
G2U/G2L Low (50% Overdrive)
Delay Time of Trip I Voltage (I
TRIPSEL
Faultbar Low
Delay Time of Phase Out of Status to Faultbar
Low (TOP High)
Minimum Logic Input Pulse Width: TOP and
BOTTOM
Minimum G1U/G1L On Timet
Minimum Pulsed Off Time, G2U/G2Lt
Turn On Delay Time of G1U (BISTATE MODE)t
low) to
low) to
, Except: TRIPU, Cl2, G1U, G2U, and D1U Referenced to PHASE.
SS
REF
+25oC200350500µs
-40oC to +85oC180350540µs
t
OFF
TN
+25oC 234µs
-40oC to +85oC1.8534.35µs
t
FN
+25oC 234µs
-40oC to +85oC1.8534.35µs
t
OSVF
+25oC500700900ns
-40oC to +85oC4007001050ns
t
MINIW
+25oC300430600ns
-40oC to +85oC275430660ns
ON
+25oC1.62.33.1µs
-40oC to +85oC1.52.43.4µs
OFF
+25oC1.32.03.4µs
-40oC to +85oC1.052.13.9µs
ON
D
+25oC2.53.24.5µs
-40oC to +85oC2.13.35.2µs
3
Page 4
SP600
Switching Specifications (All Referenced to V
DF: VDF to VBS, CF: VBS to PHASE) (Continued)
PARAMETERSYMBOLTEMPMINTYPMAXUNITS
Turn On Delay Time of G1L (BISTATE MODE)t
Turn On Delay Time of G1U
(THREE-STATE MODE)
Turn On Delay Time of G1L
(THREE-STATE MODE)
Turn Off Delay Time of G2U and G2Lt
Minimum Dead Time: G1U off to G1L on, or G1L
off to G1U on (BISTATE MODE)
Fault Reset Delay to Clear Faultbart
Rise Time of Upper and Lower Driver
(Load = 2000pF)
Fall Time of Upper and Lower Driver
(Load = 2000pF)
, Except: TRIPU, Cl2, G1U, G2U, and D1U Referenced to PHASE.
SS
ON
D
+25oC2.53.24.5µs
-40oC to +85oC2.13.35.2µs
t
ON
D
+25oC0.751.01.5µs
-40oC to +85oC0.601.11.75µs
t
ON
D
+25oC0.751.01.5µs
-40oC to +85oC0.601.11.75µs
OFF
D
+25oC0.751.01.45µs
-40oC to +85oC0.601.11.75µs
t
D.T.
+25oC1.52.53.5µs
-40oC to +85oC1.22.64µs
R.T.
+25oC3.44.56.6µs
-40oC to +85oC3.154.87.4µs
t
R U/L
+25oC2550100ns
-40oC to +85oC1550115ns
t
F U/L
+25oC2550100ns
-40oC to +85oC1550115ns
Recommended Operating Conditions and Functional Pin Description (All Voltages Referenced to V
Otherwise Noted. See Figure 1)
PARAMETERCONDITION
FAULTBAROpen Drain Fault Indicator Output
I
TRIPSELECT
V
BIAS
V
DD
V
SS
TRIP I100mV Signal to Shut Off LOWER Drive and Trigger a Fault Output
CL1Lower Noise Clamp Zener
G2L and G1LLow Impedance Driver Designed to Drive Power MOS Transistors (LOWER)
V
DF
V
BS
V
OUT
PHASEFloating Reference Point for High Side Control Circuitry: VBS, TRIPU, CL2, G1U, G2U and D1U
TRIP
U
CL2Upper Noise Clamp Zener
G2U and G1ULow Impedance Driver Designed to Drive Power MOS Transistors (UPPER)
TOPDigital Input to Command the UPPER On
BOTDigital Input to Command the LOWER On
D1UMiller Clamp UPPER to V
D1LMiller Clamp LOWER to V
Digital Input Command to Increase TRIPL and TRIPU Threshold by 30%
14.5V to 16.5V with 15V nominal, ≅ 1.5mA DC BIAS Current
CDD to V
SS
COMMON
Current Limiting Charging Resistor for Bootstrap Capacitor Power Supply
Bootstrap Supply, Normally a Diode Drop Below VDD Voltage with Respect to the Floating PHASE Reference
Load Connection Node
100mV Signal, Referenced to PHASE, to Shut Off UPPER Drive
BS
DD
, Unless
SS
4
Page 5
Timing Diagram
SP600
ON
1
0
1
0
1
0
1
B
0
1
0
1
T
0
1
T
0
1
B
0
1
0
1
0
V
DC
COM
REFRESH
ONE SHOT
VALID BOT
I
OFF
I
OFF
UPPER
LOWER
V
TOP
BOT
I
ON
I
ON
OUT
THREE-ST ATE MODE SLOWERTHAN REFRESH ONE SHOTTIMER
NOTE: BOT switching not relevant.
ON
1
0
1
0
1
0
1
B
0
1
0
1
T
0
1
T
0
1
B
0
1
0
1
0
V
DC
COM
REFRESH
ONE SHOT
VALID BOT
I
I
OFF
UPPER
LOWER
V
TOP
BOT
I
ON
OFF
I
ON
OUT
BISTATE MODE SLOWER THAN REFRESH ONE SHOT TIMER
Typical Circuit Configuration
TRUTH TABLE
Applicable to Typical Circuit Configuration (Figure 1)
INPUTSOUTPUTS
TOPBOTTRIP
L
000XX100 1
11001110 1
11011100 0
110X0100 0
XX1XX100 0
010XX101 1
100XX100 1
XXXXX000 0
NOTE: 0 = False, 1 = True, X = Don’t Care
TRIP
U
PHASEV
BIAS
UPPERLOWERFAULT BAR
5
Page 6
SP600
SYSTEM CONTROL
15V
25VDC≤ V
RCUR
DU
R
PU
19
1817
G1U G2UD1UTRIPUPHASE
21
BOT
22
TOP
1
FAULT
2
I
TRIPSELECT
V
I
BIAS
15
SP600
HVIC
BIASVDD
345
C
DD
14
OUT
V
BS
V
DF
D1L
G1L
G2L
13
C
F
12
D
F
11
10
9
8
6
L
I
BS
R
CL
R
DL
R
PL
V
V
TRIP
SS
COM
LINK
≤ 500V
DC
V
LOAD
OUT
FIGURE 1. TYPICAL CIRCUIT CONFIGURATION
LEGEND
Application SpecificR
Application SpecificR
Application SpecificR
Application SpecificR
Application SpecificR
Application SpecificR
3µF at ≥ 15DCC
0.22µF Ceramic X7R at ≥ 15V
Harris P/N A114M or Equiv PRV ≥ V
DC
LINK
CU
DU
PU
CL
DL
PL
DD
C
D
Upper Gate Charging Resistor
Upper Gate Discharge Resistor
Upper Current Pilot Resistor
Lower Gate Charging Resistor
Lower Gate Discharging Resistor
Lower Current Pilot Resistor
Local LV Filter Capacitor
Flying Capacitor for Bootstrap Supply
F
Flying Diode for Bootstrap Supply
F
NOTE: Refer to ‘Additional Product Offerings’ for information concerning power output devices.
6
Page 7
Functional Description
SP600
The SP600provides a flexible, digitally controlled power
function which is intended to be used as PWM drivers of
N-Channel MOSFETs and/or IGBTs for up to 240VAC line
rectified totem-pole applications. The CMOS driveable
inputs are filtered and captured by the control logic to determine the output state. The logic includes fixed timing to prohibit simultaneous conduction of the external power switches
and, thru the V
sense detector, verifies the output volt-
OUT
age state is in agreement with the controlled inputs. The
>11V
floating power supply required to drivethe upper rail
DC
external power device is created and managed by the HVIC
through C
supply each time V
and DF. This capacitor is refreshed from the V
F
goes low. If the upper channel is
OUT
DD
commanded on for a long period of time, the bootstrap
capacitor CF is automatically refreshed by bringing V
OUT
low. This is accomplished by turning off the upper rail MOSFET/IGBT, momentarily turning on the lower rail output
device, followed by returning control back to the upper
switch. Otherwise, C
would gradually deplete its charge
F
allowing the upper switch to come out of saturation. The
upper and lower gate drivers allow for controlled charge and
discharge rates as well as facilitate the use of nearly lossless
current sensing power MOS devices. The over current trip
level can be boosted 30% on a pulse by pulse basis by logic
level ‘1’ applied to I
TRIPSELECT
.AFAULT output signal is
generated when any of the following occurs:
V bias is low
Over current is detected
V phase doesn’t agree with the input signal
Reset of
FAULT is provided by externally removing power or
by holding both TOP and BOT inputs low for the required
reset time (trt
MAX
).
Each application can be individually optimized by the selection of external components tailored to ensure proper overall
system operation including:
Determining the ratings and sizing of MOSFETs and IGBTs,
mixed or matched, as well as flyback diodes (FBD).
The selection of separate gate charge (R
(R
) impedance chosen per the load capacitance, frequency
D
of operation, and D
of the associated FBDs. R
dependent recovery characteristics
I/DT
should also be sized to prevent
D
) and discharge
C
simultaneous bridge conduction by ensuring gate discharge
in the allotted turn off pulse width (t
OFF MIN
The selection of over current detection resistors (R
).
), com-
P
patible with current sense MOSFETs/IGBTs or shunt(s) may
be used.
For the floating bootstrap supply D
mined. D
must support the worse case system bus voltage
F
and handle the charging currents of C
should take into consideration T
operating frequency. Proper selection of C
between the minimum t
time of the lower rail to charge up
ON
and CFmust be deter-
F
. Proper selection
F
and TFRper the desired
RR
is a trade off
F
the capacitor, the amount of charge transfer required by the
load, and cost. Due to automatic refresh the capacitor is
replenished every 350µs TYP (or even sooner if input commands the TOP to switch at a faster repetition rate).
The local filter capacitor (C
large enough to transfer the charge to C
significant droop in V
DD
least 10 times larger than C
V
and VSSpins to minimize series resistance and
DD
) should be sized sufficiently
DD
without causing a
F
. As a rule of thumb it should be at
and be located adjacent to the
F
inductance.
Refer to Application Note AN8829 for more details about module operation and selection of external components.
7
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