STMICROELECTRONICS L9820

L9820
HIGH SIDE DRIVER
ADVANCE DATA
OPERATING SUPPLY VOLTAGE UP TO 25V
DC CURRENT 0.3A
RON < 800mΩ
DIAGNOSTIC AND PROTECTION FUNCTIONS
µP COMPATIBLE
ENABLE INPUT FOR STAND-BY MODE
DESCRIPTION
The L9820 High Side Driver realized with Multipower - BCD mixed technology, drives resistive
or inductive loads with one side connected to
ground.
The ENABLE input is TTL compatible and a diagnostic output provides an indication of short circuit
and device status (thermal and overvoltage shutdown). Onchip thermal protection and short circuit
protection are provided.
MULTIPOWER BCD TECHNOLOGY
Minidip
SO8
ORDERING NUMBERS:
L9820
L9820D
BLOCK DIAGRAM
40mΩ
February 1994
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This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
L9820
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
VS
Max Forward Voltage
Value
Unit
50
Vdc
IR
Reverse Bias Current at -1.3V
–0.46
A
V5
Input Voltage (to GND)
–0.3 to 20
V
V8
Diag. Output Voltage (to GND)
–0.3 to 20
V
V1
Output Voltage (to GND)
–0.3 to 25
V
I4
Supply Current
I5
Enable Input Current
0.5
mA
I8
Diag. Out Current (sink)
10
mA
I1
Output Current
Top
Tj, Tstg
Internally limited
Internally limited
Operation Temperature
–40 to 85
°C
Junction and Storage Temperature Range
–55 to 150
°C
150
°C
Detecting Temperature
Tjp
PIN CONNECTION (Top views)
Minidip
SO8
THERMAL DATA
Symbol
Parameter
Rth j-amb
Thermal Resistance Junction-ambient
Max.
Minidip
SO8
Unit
100
200
°C/W
TRUTH TABLE
H: high level
L: low level
ENABLE
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FUNCTION
DIAG. STATUS
POWER STATUS
L
Operating OFF
H
L
H
Normal Operation
H
H
H
Overvoltage Protection ON
L
L
H
Overcurrent Protection ON
L
L
H
Overtemperature
Protection ON
L
L
L9820
PIN FUNCTIONS
N.
Name
1
POWER OUTPUT
The device is provided with short circuit protection.
4
POWER SUPPLY
Supply voltage input.
5
ENABLE INPUT
7
GROUND
8
DIAGNOSTIC FEEDBACK
Description
TTL compatible input. High level on this pin means output current ON.
The low level voltage switches off the charge pump, the power stage and
the diagnostic output reducing to the minimum value the quiescent current.
This pin must be connected to ground.
The diagnostic circuit is active in input high level condition. This output
detects with Tipically 50µs delay at Tamb = 25°C the following faults:
– Overvoltage condition.
– Thermal shutdown.
– Short circuit. The power stage current is internally limited at 1.5A.
The diagnostic output is active low. The diagnostic delay time allows to
avoid spurious diagnosys(i.e.: turn ON overcurrent, overvoltage spikes etc.).
ELECTRICAL CHARACTERISTICS (VS = 14.4V, –40°C≤ Tj ≤ +85°C, unless otherwise specified.)
Symbol
Parameter
Test Condition
VS
Operating Supply Voltage
R on
On Resistance
Input > 2V, Tj = 25°C
Input > 2V, Full T range
Ioff
Off State Supply Current
Tj < 35°C
Tj = 85°C
Ion
On State Supply Current
VEL
Enable Low Level
VEH
Enable High Level
IE
Enable Current
Min.
Typ.
6
0.6
Max.
Unit
25
V
0.8
1.2
Ω
Ω
130
300
µA
µA
4
mA
0.8
2
V
V
0V < Vi <5V
10
µA
Ileakd
Diagnostic Output Leakage Current
VCC = 5V Diagnostic Output High
10
µA
Vsat d
Diagnostic Output Saturated
Voltage
Isink < 3.5mA
0.4
V
tdd
Diagnostic Delay Time
Tj = 25°C
30
µs
tdon
Output ON Delay Time
Tj = 25°C
30
µs
tr
Output ON Rise Time
Tj = 25°C
100
µs
Output OFF Delay Time
Tj = 25°C
80
µs
Output OFF Fall Time
Tj = 25°C
100
µs
tdoff
tf
Vdon
Overvoltage Detection ON
25
Vdh
Overvoltage Hysteresis
2
5
V
V
Idon
Overcurrent Detection ON
0.5
1.5
A
Tdon
Overtemperature Detection ON
150
Tdh
Overtemperature Hysteresis
°C
25
50
°C
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L9820
SO8 PACKAGE MECHANICAL DATA
DIM.
MIN
mm
TYP
A
a1
MAX
MIN
inch
TYP
1.75
0.1
0.25
a2
MAX
0.069
0.004
0.010
1.65
0.065
a3
0.65
0.85
0.026
0.033
b
0.35
0.48
0.014
0.019
b1
0.19
0.25
0.007
0.010
C
0.25
0.5
0.010
0.020
c1
45
D
1
E
5.8
1.772
4.8
6.2
0.039
0.228
0.244
e
1.27
0.050
e3
3.81
0.150
F
1
3.8
0.189
0.039
0.150
G
L
4/6
0.4
1.27
0.016
0.050
M
0.6
0.024
S
8
0.315
L9820
MINIDIP PACKAGE MECHANICAL DATA
mm
DIM.
MIN.
A
TYP.
inch
MAX.
MIN.
3.32
TYP.
MAX.
0.131
a1
0.51
0.020
B
1.15
1.65
0.045
0.065
b
0.356
0.55
0.014
0.022
b1
0.204
0.304
0.008
0.012
D
E
10.92
7.95
9.75
0.430
0.313
0.384
e
2.54
0.100
e3
7.62
0.300
e4
7.62
0.300
F
6.6
0.260
I
5.08
0.200
L
Z
3.18
3.81
1.52
0.125
0.150
0.060
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L9820
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specification mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectronics.
 1996 SGS-THOMSON Microelectronics – Printed in Italy – All Rights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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