OVER CURRENT ANDDESATURATION
PROTECTION OF THE EXTERNAL POWER
DEVICE(EXTERNALLY PROGRAMMABLE)
LATCH-UPPROTECTION(FOR IGBT)
TWOSTEPS TURN-ON (PROGRAMMABLE)
PROTECTION AGAINST POSITIVE SUPPLY
UNDER-VOLTAGE
INPUT COMPATIBLE WITH OPTOCOUPLER
OR PULSETRANSFORMER
PROGRAMMABLETURN-ON DELAY
THERMAL PROTECTION WITH ON-CHIP
OVER-TEMPERATURE ALARM AND TURNOFF PROCEDURE
OPERATINGFREQUENCY UP TO 100kHz
L6353
DIP16
ORDERING NUMBERS: L6353 (DIP)
DESCRIPTION
The L6353 device is a smart driver, with all the
driveandprotectionknow-how”on board”.
Available in both DIP and SO package, it can be
triggeredwitha logiclevelorwith the signalfroman
optocouplerora pulsetransformer.It filtersparasitic
inputsignalsand drives any MOSor IGBT.
SO16
L6353D (SO)
BLOCK DIAGRAM
2.5V
300µA
SELECT
INPUT
1.25V3.75V
INV_OUT
ALARM
1.25V
+
−
DELAY
SUPPLY
UV SENSE
REFERENCES
3.15V
+
−
OUT1
CLAMPING
LOGIC
3.15V
−
+
−
+
+
−
7.5V
COM
D94IN106B
+
−
FILTER
200ns
THERMAL
SHUTDOWN
4V
V
CC
REF
V
POS
OUT1
CLAMP_PROG
OUT2
V
SS
MON_DELAY
ON_SENSE
ON_LEV_PROG
February 2000
1/11
L6353
DESCRIPTION (continued)
It monitors theon-state voltage drop of thedriven
power device and protectsit againstoverload and
short circuit.
The on-state voltage drop level is externallyprogrammable from 5 to 15V. This function is inhibited during the turn-on of the external power device for an externally programmableperiod.
An internal inhibition time of 200ns avoids false
triggering.
PIN CONNECTION (topview)
OUT1
V
CC
V
POS
CLAMP_PROG
INV_OUT
ALARM
MON_DELAY
VREF
1
2
3
4
5
6
7
8INPUT9
D94IN113A
Overload or overheating are signalled on an
alarmoutput. If temperature continuestoincrease
the power output is switched off and maintained
in the off-state until the temperature decreases
below the low threshold. A programmable turn-on
delay avoids cross conduction in bridge configurations.
To preservethe externalpower device (especially
IGBT) from the risk of latch-up, the gate voltage
can be risen in two different steps (of which the
first is externally programmablefrom7 to 11V).
16
15
14
13
12
11
10
OUT2
COM
V
SS
ON_SENSE
ON_LEV_PROG
SELECT
DELAY
ABSOLUTE MAXIMUM RATINGS
SymbolParameterValueUnit
V
CC
V
SS
V
POS-VOUT1
V
OUT2-VSS
V
EXT1
V
EXT2
I
DELAY
I
MON_DELAY
V
ON_SENSE
I
OUT1
I
OUT2
I
INV_OUT
I
ALARM
P
tot
T
amb
T
stg
Supply Voltage referred to COM pin20V
Negative Supply Voltage referred to COM pin– 8 to 0V
Collector-Emitter Voltage of High Side NPN25V
Drain-Source Voltage of Low Side DMOS25V
Externally Forced Voltage (pin 9)-0.3 to V
CC
Externally Forced Voltage (pins 4,7,10, 11, 12)-0.3 to 7V
Sink Current pin Delay3mA
Sink Current PinMon_Delay3mA
Voltage on ON_SENSE PinVSS-0.3 to V
CC
Positive Output Current (tp ≤1ms) (peak)8A
Negative Output Current (tp ≤1ms) (peak)8A
Output Current in INV_OUT Pin±20mA
Output Current in ALARM Pin±20mA
Total Power Dissipationinternally limited
Operating Temperature Range-25 to +85
Storage Temperature-50 to +150°C
THERMAL DATA
SymbolParameterDIP16SO16Unit
R
thj-ambient
Thermal Resistance Junction-ambientMax8090°C/W
V
V
C
°
2/11
PIN FUNCTIONS
N.NameFunction
1OUT1Output of high side driver (emitter of power NPN transistor).
2V
3V
CC
POS
4CLAMP_PROGFirstStep of theGate Voltage Programming.
5INV-OUTInvertedOutputDriverStatus.
6ALARMDiagnostic OutputSignal. A fault condition is signalled by this output buffer.
7MON_DELAYV
8V
REF
9INPUTInput signal.
10DELAYOn Triggering Delay. An R-C network connected between this, the COM and the V
11SELECTSelect the direct/inverted mode in the Logic Level Mode. It’s also the reference pin in Pulse
12ON_LEV_PROGV
13ON_SENSEOn State Monitor.
14V
SS
15COMGround
16OUT2Output of the low side driver (drain of the DMOS).
Positive Supply Voltage (referred to COM).
See under voltage lockout functioning
Positive Bias Voltage (collector of theNPN power transistor).
The programming is achieved setting an appropriate voltageon this pin (i.e. usinga resistence
voltage divider).
Thebufferoutputis ableto drivesome auxiliary circuit(i.e. a LED).
Monitor Delay. An R-C network connected between this, the COM and the V
ON
define t
MON_DELAY
time interval(see fig 4)
REF
Output of the 5V/10mA internalvoltage reference.
The driving signal can be a logic level either active LOW (inverted mode) or HIGH (direct
mode) in the Logic Level or a pulse in the PulseTransformer Mode (see Figure 2)
definethe t
time interval(see fig 4)
DELAY
REF
transformer mode.
level programming.
ON
This pin is used to set the V
monitor level. The programming is achieved setting an
ON
appropriate voltage on this pin (i.e. using a resistive divider).
Thispin is used to monitor the turning on of the external power device.
Negative supply voltage (referred to the COM).
This pin is the source of the lowside driver DMOS.
L6353
pins,
pins,
3/11
L6353
DC ELECTRICAL CHARACTERISTICS (V
POS=VCC
=15V; VSS= -5 to 0V; Tj= -25 to +125°C; unless
otherwise specified)
SymbolPinParameterTest ConditionMin.Typ.Max.Unit
V
V
V
CCth1
V
CCth2
V
CChys
I
CCq
V
drop_sig
V
R
V
R
I
V
R
V
t
V
V
V
V
V
drop
CC
V
I
so
I
si
dth
outs
SS
ON
V
I
in
inh
ton
toff
I
sl
sel
1V
POS-VOUT1
2Operating Supply Voltage(referred to COM pin)12.518V
Under Voltage Upper
Threshold
Under Voltage Lower
Threshold
Under VoltageHysteresis0.30.50.7V
QuiescentSupply Current5mA
4, 12 Output Voltagepin floating1.26V
d
Sourced Currentpin grounding20µA
Sinked Currentpin at +5V-20
5, 6High State Output Voltage Drop I
Low State Output Voltage Drop3V
ref
8Output of Internal Voltage
Reference
7, 10 Comparator Input Resistance100
in
Comparator Threshold3.15V
ins
13Input Resistance75KΩ
Output Currentpin grounded200µA
14OperatingNegative Bias
Voltage
16On ResistanceOUT2 to VSS); I
il
ih
9Low Level Voltage(Logic Level Mode)01V
High Level Voltage(Logic Level Mode)4V
Input Current0<Vin<V
Inhibited Parasitic Pulse
Duration
Turn-on Threshold VoltageReferred to V
Turn-off Threshold VoltageReferred to Vsel
sl
sh
11Low Level Voltage(Logic Level Mode)01V
High Level Voltage(Logic Level Mode)2V
Current Output of SELECT PinVsl= 0V (Logic Level Mode)300µA
Output Voltage of SELECT Pin(Pulse Transformer Mode)2.252.52.75V
I
= 2A2.5V
OUT1
10.511.512.5V
101112V
= 20mAVCC–3V
out
I
= 0A; Tj=25°C4.955.1V
ref
< 10mA; Tj=25°C4.85.2mA
I
ref
(referred to COM)– 70V
= 2A0.5Ω
OUT2
CC
CC
–1010
(Logic LevelMode)
(Logic LevelMode)200300ns
sel
1.5V
(Pulse Transformer Mode)
– 1.5V
(Pulse Transformer Mode)
REF
A
µ
Ω
V
A
µ
V
4/11
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