®
L93PI
QUAD LOW SIDE DRIVER
WIDE INPUT VOLTAGE RANGE -24V UP TO +45V
WIDE OPERATING SUPPLY VOLTAGE
RANGE FROM 4.5V UP TO 32V
REVERSE BIASING PROTECTED (V
S
= -24V)
VERY LOW STANDBY QUIESCENT CUR-
RENT < 2
µ
A
PROGRAMMABLE SIGNAL TRANSFER PO-
LARITY
TTL AND CMOS COMPATIBLE INPUTS
DEFINED OUTPUT OFF STATE OFF FOR
OPEN INPUTS
FOUR OPEN DRAIN DMOS OUTPUTS, WITH
R
DSon
= 1.5
Ω
at 25°C and V
S
> 6V
OUTPUT CURRENT LIMITATION
CONTROLLED OUTPUT SLOPE FOR LOW EMI
OVERTEMPERATURE SHUT-DOWN
INTEGRATED OUTPUT CLAMPING FOR
FAST INDUCTIVE RECIRCULATION V
FB
> 45V
STATUS MONITORING FOR
- OVERTEMPERATURE
BLOCK DIAGRAM
SO20 (12+4+4)
ORDERING NUMBER: L93PI
- DISCONNECTED GROUND OR SUPPLY
VOLTAGE
ESD: ALL PINS ARE GUARANTEED TILL 2kV
HUMAN BODY MODEL
DESCRIPTION
The L93PI is a monolithic integrated quad low side driver realized in advanced Multipower-BCD technology. It is intended to drive lines, lamps or relais in automotive or industrial applications.
IN4 CHANNEL 4
IN1
OUT4
OUT1
PRG
CHANNEL 1
= &
THERMAL
SHUTDOWN
4
DIAGNOSTIC
LOGIC
DIAG
EN
GND VS
REFERENCE
Vint
Vlogic
D95AT149
September 20 13 1/8
L93PI
ABSOLUTE MAXIMUM RATINGS (no damage or latch)
Parameter Symbol
V
S
Pin voltages
V
IN
V
OUT
V
DIAG
E
X
Supply voltage
Input, enable, program
Output
Diagnostic output
Max. Energy During Flyback
PIN CONNECTION (Top view)
IN1
IN2
DIAG
GND
GND
GND
GND
VS
IN3
IN4
PIN DESCRIPTION
N o
8
4,5,6,7,14,
15,16,17
11
20
3
10
19
18
1
2
9
13
12
–
Pin Name
VS
GND
EN
PRG
DIAG
IN1
IN2
IN3
IN4
OUT 1
OUT 2
OUT 3
OUT 4
NC
SUPPLY VOLTAGE
GROUND
ENABLE
PROGRAM
DIAGNOSTIC
INPUT 1
INPUT 2
INPUT 3
INPUT 4
OUTPUT 1
OUTPUT 2
OUTPUT 3
OUTPUT 4
NOT CONNECTED
8
9
10
5
6
7
1
2
3
4
D94AT121A
13
12
11
16
15
14
20
19
18
17
Function
PRG
OUT1
OUT2
GND
GND
GND
GND
OUT3
OUT4
EN
Value
-24 to 45
-24 to 45
-0.3 to 45
-0.3 to 45
2
Unit
V
V
V
V mJ
2/8
L93PI
THERMAL DATA
Symbol
R th (j-pins)
R th (j-amb)
T jMon
Parameter
Thermal resistance junction to pin
Thermal resistance junction to ambient mounted on
SMPCB2 board
Temperature-monitoring
Switch-off-level
Switch-on-level
SO20 (2)
–
77 to 97
SO(12+4+4) (1) Unit
14 (Typ.)
–
°
C/W
°
C/W
160 to 190
140 to 170
°
C
°
C
(1) See SGS-THOMSON Microelectronics databook:"Thermal Management in Surface Mount Technology"
(2) See SGS-THOMSON Microelectronics databook:"Thermal characteristics of SO20"
OPERATING CONDITIONS (The electrical characteristics are valid within the below defined operating ranges, unless otherwise specified. The function will be guaranted by design until T jMON
switch-OFF-level.
Symbol
V
S
V
IN
V
EN
V
OUT
, V
D
T j
Supply Voltage
Input pin voltage
Enable pin voltage
Output pin voltage
Junction temperature
Parameter Value
4.5 to 40
-24 to 10
-24 to 45
-0.3 to 45
-40 to 150
Unit
V
V
V
V
°
C
ELECTRICAL CHARACTERISTICS (Refer to the test circuit, unless otherwise specified.)
Symbol
I
Q
Parameter
Quiescent current
Test Condition
-0.3V
≤
V
EN
V
S
= 14V; T j
≤
0.5V;
= 85
°
C
EN = high; V
S
≤
14V
Inputs IN1 - IN4, PRG
V
INIlow
V
INhigh
Input voltage LOW
Input voltage HIGH
I
IN
Input current
Enable Input EN
-24V
≤
Vi
≤
10V
V
ENlow
V
ENhigh
Input voltage LOW
Input voltage HIGH
R
EN
I
EN
Input impedance
Input current
Outputs OUT1-OUT4
V
R
I
DSon
OLeak
OClamp
Output ON-resistor to ground
Leakage current
V
S
≥
6V, I
O
= 0.3A
T j
T j
= 25
°
C
= 125
°
C
V
O
= V
S
= 14V; T j
= 85
°
C
Output voltage during clamping time < 200
µ s; 10mA
≤
Io
≤
0.3A
I
OSC
Short-circuit current
-24V < V i
< 2.5V
2.5V
≤
Vi
≤
25V
C
O
Internal output capacities
Diagnostic output DIAG
V
O
≥
4.5V
V
Dlow
Output voltage LOW I
DL
≤
1mA
I
Dmax
I
Dleak
Max. Output current
Leakage current
Internal current limitation
V
S
= 14V; T
J
= 85
°
C
Min.
-24
2.8
-10
-24
3.2
10
45
400
1
Typ.
<2
1.5
20
1.7
≤
1
52
700
0.3
5
≤
0.1
Max.
10
2
2.0
45
15
1
VS
50
2.3
3.5
5
60
1200
100
0.5
15
1
Unit
µ
A mA
V mA
µ
A
Ω
Ω
µ
A
V mA pF
V
V
µ
A
V
V
K
Ω
µ
A
3/8
L93PI
ELECTRICAL CHARACTERISTICS (Continued)
Symbol
Timing (see Fig. 1)
Parameter
On delay time t d,on t d,off t set t d,DIAG
S out
Off delay time
Enable settling time
On or Off diagnostic delay time
Output slopes
Test conditions
V
S
= 14V, C
10mA
≤
I ext
= 0pF
O
≤
200mA
Figure 1
V
EN
V
INhigh
V
INlow active
V
PRG
V
INhigh
V
INlow
Non-Inverting Mode Inverting Mode
Min.
2.5
Typ.
Max.
2.5
3
9
3.5
4.5
10
10
16
Unit
µ s
µ s
µ s
µ s
V/
µ s t t
V
IN
V
INhigh
V
INlow t
V
OUT
V
S
1/2V
S t tset td,off td,on
No controlled output slope for enable low td,off td,on td,off td,on
D95AT150 tset
4/8
CIRCUIT DESCRIPTION
The L93PI is a quad low side driver for lines, lamps or inductive loads in automotive and industrial applications.
All INputs are TTL or CMOS compatible. This allows the device to be driven directly by a microcontroller. For the noise immunity, all inputs have a Schmitt-trigger with a hysteresis of typ. 100mV.
Each input stage has an input voltage protection from -24V to 45V. The device can be activated with a ’high’ signal on ENable input. ENable ’low’ switches the device into the sleep mode. In this mode the quiescent current is less than 10
µ
A. A high signal on PRoGramming input changes the signal transfer polarity from noninverting into the inverting mode. Normally this pin is connected to
V
S
or GND. These pins (PRG and EN) are internally fixed at low status by open input condition.
Independent of the PRoGramming input, the
OUTput switches off, if the signal INput pin is not connected.
Each output driver has a current limitation of min
0.4A and a seperate thermal shut-down. The thermal shut-down deactivates that output which ex-
L93PI ceeds Temperature switch off level. About 20K below this temperature threshold the output will be activated again. This means, that each output is able to sink continuously 285mA without activating thermal shut-down at 85°C ambient temperature (SO20). The slew rate of the output is limited to max. 14V/
µ s to reduce the electromagnetic interference, but not for the enable transfer characteristic (see fig. 1). An integrated active flyback voltage limitation clamps the output voltage during the flyback phase of inductive loads to typ.
50V. The power DMOS switches ON, if the device is enabled and the OUTput swings below ground.
This protection avoids the activation of parasitics inside the power DMOS.
The DIAGnostic is an open drain output. The logic status depends on the PRoGramming pin. If the
PRG pin is ’low’ the DIAG output becomes low, if the device works correctly.
At thermal shut-down of one channel, disconnected ground or supply voltage the DIAGnostic output becomes high. If the PRG pin is ’high’ this output is switched off at normal function and switched on at overtemperature.
DIAGNOSTIC TABLE
Pins
Normal function
H
L
H
H
H
H
EN
H
X
L
L
L
H
PRG
Overtemperature, disconnected ground or supply voltage
Overtemperature H H
X = not relevant * selective for each channel at overtemperature
H
X
X
L
H
L
X
IN OUT
L (on)
H (off)
H (off)
L (on)
H (off)
H (off) *
H (off) *
DIAG
L (on)
L (on)
H(off)
H(off)
H(off)
H (off)
L (on)
5/8
L93PI
Figure 2: Application circuit for inverting transfer polarity.
BOARD VOLTAGE 14 V
VCC = 5V
VCC
INT
GND
A 0:8
8
D 0
D 1
D 2
D 3
Adressdecoder
10
µ
F
PRG
VS
EN
DIAG
IN 1
IN 2
IN 3
IN 4
GND
OUT 1
OUT 2
OUT 3
OUT 4
2 W 12 mH
M
250 mA
50 kHz 10
µ
H
240
Ω
50pF
VCC = 5V
IN
VCC
GND
6/8
L
K
H h
D
E e
B
C
DIM.
mm inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
A
A1
2.35
0.1
2.65
0.3
0.093
0.004
0.104
0.012
0.33
0.23
12.6
7.4
0.51
0.013
0.32
0.009
13 0.496
7.6
0.291
1.27
0.050
0.020
0.013
0.512
0.299
10
0.25
0.4
10.65
0.394
0.75
0.010
1.27
0.016
0˚ (min.)8˚ (max.)
0.419
0.030
0.050
B e
OUTLINE AND
MECHANICAL DATA
L93PI
SO20
L
A
K h x 45˚
H
A1 C
D
20
1
11
E
SO20MEC
7/8
L93PI
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