The TDE1890/1891 is a monolithic Intelligent
Power Switch in Multipower BCD Technology, for
BLOCK DIAGRAM
- 50VFOR FASTDEMAGNETIZATION
S
TDE1891
2A HIGH-SIDE DRIVER
MULTIPOWER BCD TECHNOLOGY
MULTIWATT11 MULTIWATT11V PowerSO20
(In line)
ORDERING NUMBERS:
TDE1891LTDE1890VTDE1890D
TDE1891V
driving inductive or resistive loads. An internal
ClampingDiode enablesthe fast demagnetization
of inductiveloads.
Diagnostic for CPU feedback and extensive use
of electrical protections make this device extremely rugged and specially suitable for industrial automationapplications.
July 1998
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TDE1890 - TDE1891
PIN CONNECTION (Topview)
11
10
9
8
7
6
5
4
3
2
1
D93IN022
OUTPUT
SUPPLY VOLTAGE
OUTPUT
N.C.
N.C.
GND
OUTPUT STATUS
INPUT INPUT +
DIAGNOSTIC 2
DIAGNOSTIC 1
Note: Output pins mustbe must be connectedexternally to the package touse allleadsfor the outputcurrent (Pin9 and 11 for Multiwatt
package, Pin 2, 3, 8 and 9 for PowerSO20package).
ABSOLUTE MAXIMUM RATINGS
SymbolParameterValueUnit
V
V
S–VO
V
V
I
P
T
T
E
S
I
O
tot
op
stg
Supply Voltage (Pin 10) (TW< 10ms)50V
Supply toOutputDifferential Voltage. Seealso VCl(Pins10 - 9)internally limitedV
Input Voltage (Pins 3/4)-10 to VS +10V
i
Differential Input Voltage (Pins 3 - 4)43V
i
Input Current (Pins 3/4)20mA
i
Output Current(Pin 9). See also ISC (Pin 9)internally limitedA
Power Dissipation.See also THERMAL CHARACTERISTICS.internally limitedW
Operating Temperature Range (T
)-25 to +85°C
amb
Storage Temperature-55 to 150°C
Energy Induct.Load TJ=85°C1J
Turn on Delay Time200µs
Turn off Delay Time40µs
Input Switchingto Diagnostic
200µs
Valid
Note Vil < 0.8V, Vih > 2V@ (V+In> V–In)
Figure 1
TRUE
FALSE
HIGH
LOW
DIAGNOSTICTRUTHTABLE
Diagnostic ConditionsInputOutputDiag1Diag2
Normal OperationL
H
Open Load Condition (I
)L
o<Iold
H
Short to V
S
L
H
Short Circuit to Ground (I
) (**)TDE1891
O=ISC
TDE1890
H<H (*)HL
HH
Output DMOS OpenL
H
OvertemperatureL
H
Supply Undervoltage (V
S<Vsth2
)L
H
(*) According to theintervention of the current limitingblock.
(**) A cold lampfilament,or a capacitiveload may activate the current limiting circuit of the IPS, when the IPSis initially turned on. TDE1891
uses Diag2 to signal such condition, TDE1890 does not.
L
H
L
H
H
H
L
L
L
L
L
L
L
H
H
H
L
L
L
H
H
H
L
H
H
L
L
H
H
H
H
H
H
H
H
H
H
L
L
L
L
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