TDE1897R
TDE1898R
®
0.5A HIGH-SIDE DRIVER
INDUSTRIAL INTELLIGENT POWER SWITCH
0.5A OUTPUT CURRENT
18V TO 35V SUPPLY VOLTAGE RANGE
INTERNAL CURRENT LIMITING
THERMAL SHUTDOWN
OPEN GROUND PROTECTION
INTERNAL NEGATIVE VOLTAGE CLAMPING
TO VS - 45V FOR FAST DEMAGNETIZATION
DIFFERENTIAL INPUTS WITH LARGE COMMON MODE RANGE AND THRESHOLD
HYSTERESIS
UNDERVOLTAGE LOCKOUT WITH HYSTERESIS
OPEN LOAD DETECTION
TWO DIAGNOSTIC OUTPUTS
OUTPUT STATUS LED DRIVER
DESCRIPTION
The TDE1897R/TDE1898R is a monolithic Intelligent Power Switch in Multipower BCD Technol-
MULTIPOWER BCD TECHNOLOGY
Minidip
SIP9
SO20
ORDERING NUMBERS:
TDE1897RDP
TDE1898RDP
TDE1898RSP
TDE1897RFP
TDE1898RFP
ogy, for driving inductive or resistive loads. An internal Clamping Diode enables the fast demagnetization of inductive loads.
Diagnostic for CPU feedback and extensive use
of electrical protections make this device inherently indistructible and suitable for general purpose industrial applications.
BLOCK DIAGRAM
September 2003
1/12
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
TDE1897R - TDE1898R
PIN CONNECTIONS (Top view)
SO20
Minidip
SIP9
ABSOLUTE MAXIMUM RATINGS (Minidip pin reference)
Symbol
VS
VS – VO
Parameter
Supply Voltage (Pins 3 - 1) (TW < 10ms)
Supply to Output Differential Voltage. See also VCl 3-2 (Pins 3 - 2)
Vi
Vi
Input Voltage (Pins 7/8)
Differential Input Voltage (Pins 7 - 8)
Ii
IO
Input Current (Pins 7/8)
Output Current (Pins 2 - 1). See also ISC
El
Energy from Inductive Load (TJ = 85°C)
Ptot
Top
Power Dissipation. See also THERMAL CHARACTERISTICS.
Operating Temperature Range (Tamb)
Tstg
Storage Temperature
Value
Unit
50
internally limited
V
V
-10 to VS +10
43
V
V
20
internally limited
mA
A
200
mJ
internally limited
-25 to +85
W
°C
-55 to 150
°C
THERMAL DATA
Symbol
Rth j-case
Rth j-amb
2/12
Description
Thermal Resistance Junction-case
Thermal Resistance Junction-ambient
Max.
Max.
Minidip
Sip
100
10
70
SO20
Unit
90
°C/W
°C/W
TDE1897R - TDE1898R
ELECTRICAL CHARACTERISTICS (VS = 24V; Tamb = –25 to +85°C, unless otherwise specified)
Symbol
Vsmin 3
Parameter
Test Condition
Supply Voltage for Valid
Diagnostics
Min.
Idiag > 0.5mA @ Vdg1 = 1.5V
Typ.
9
Vs 3
Supply Voltage (operative)
Iq 3
Quiescent Current
Iout = Ios = 0
Vil
Vih
Vsth1
Undervoltage Threshold 1
(See fig. 1); Tamb = 0 to +85°C
Vsth2 3
Vshys
Undervoltage Threshold 2
Supply Voltage Hysteresis
(See fig. 1); Tamb = 0 to +85°C
(See fig. 1); Tamb = 0 to +85°C
0.4
Short Circuit Current
VS = 18 to 35V; RL = 1Ω
0.75
Output Voltage Drop
@ Iout = 625mA; Tj = 25°C
@ Iout = 625mA; Tj = 125°C
Ioslk 2
Vol 2
Output Leakage Current
@ Vi = Vil , Vo = 0V
Low State Out Voltage
@ Vi = Vil; RL = ∞
Vcl 3-2
Iold 2
Internal Voltage Clamp (VS - VO)
Open Load Detection Current
@ IO = -500mA
Vi = Vih; Tamb = 0 to +85°C
Vid 7-8
Common Mode Input Voltage
Range (Operative)
VS = 18 to 35V,
VS - Vid 7-8 < 37V
Iib 7-8
Vith 7-8
Input Bias Current
Input Threshold Voltage
Vi = –7 to 15V; –In = 0V
V+In > V–In
Viths 7-8
Input Threshold Hysteresis
Voltage
V+In > V–In
Rid 7-8
Diff. Input Resistance
@ 0 < +In < +16V; –In = 0V
@ –7 < +In < 0V; –In = 0V
Iilk 7-8
Input Offset Current
V+In = V–In
0V < Vi V–In);
All test not dissipative.
2
0.7
Minidip pin reference.
3/12
TDE1897R - TDE1898R
SOURCE DRAIN NDMOS DIODE
Symbol
Vfsd 2-3
Parameter
Forward On Voltage
Test Condition
@ Ifsd = 625mA
Ifp 2-3
trr 2-3
Forward Peak Current
t = 10ms; d = 20%
Reverse Recovery Time
If = 625mA di/dt = 25A/µs
tfr 2-3
Forward Recovery Time
Min.
Typ.
1
Max.
1.5
Unit
V
2
A
200
ns
50
ns
150
30
°C
°C
THERMAL CHARACTERISTICS (*)
Θ Lim
TH
Junction Temp. Protect.
Thermal Hysteresis
135
SWITCHING CHARACTERISTICS (VS = 24V; RL = 48Ω) (*)
ton
Turn on Delay Time
100
µs
toff
Turn off Delay Time
20
µs
td
Input Switching to Diagnostic
Valid
100
µs
Note Vil < 0.8V, Vih > 2V @ (V+In > V–In); Minidip pin reference.
(*) Not tested.
Figure 1
DIAGNOSTIC TRUTH TABLE
Diagnostic Conditions
Normal Operation
Open Load Condition (Io < Iold)
Short to VS
Short Circuit to Ground (IO = ISC)
(**)
TDE1897R
TDE1898R
Output DMOS Open
Overtemperature
Supply Undervoltage (VS < Vsth1 in the falling phase of the supply voltage; VS < Vsth2 in the rising phase of the supply voltage)
Input
L
H
L
H
Output
L
H
L
H
Diag1
H
H
H
L
Diag2
H
H
H
H
L
H
H
H
L
L
H
H
H
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