TDE1897R
TDE1898R
0.5A HIGH-SIDE DRIVER INDUSTRIAL INTELLIGENT POWER SWITCH
*0.5A OUTPUT CURRENT MULTIPOWER BCD TECHNOLOGY
*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 COM-
MON MODE RANGE AND THRESHOLD
HYSTERESIS
*UNDERVOLTAGELOCKOUTWITH HYSTERESIS
*OPEN LOAD DETECTION
*TWO DIAGNOSTIC OUTPUTS
*OUTPUT STATUS LED DRIVER
DESCRIPTION
The TDE1897R/TDE1898R is a monolithic Intelligent Power Switch in
Multipower BCD Technology, 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
PIN CONNECTIONS (Top view)
ABSOLUTE MAXIMUM RATINGS (Minidip pin reference)
| Symbol | Parameter | Value | Unit |
| VS | Supply Voltage (Pins 3 - 1) (TW < 10ms) | 50 | V |
| VS – VO | Supply to Output Differential Voltage. See also VCl 3-2 (Pins 3 - 2) | internally limited | V |
| Vi | Input Voltage (Pins 7/8) | -10 to VS +10 | V |
| Vi | Differential Input Voltage (Pins 7 - 8) | 43 | V |
| Ii | Input Current (Pins 7/8) | 20 | mA |
| IO | Output Current (Pins 2 - 1). See also ISC | internally limited | A |
| El | Energy from Inductive Load (TJ = 85°C) | 200 | mJ |
| Ptot | Power Dissipation. See also THERMAL CHARACTERISTICS. | internally limited | W |
| Top | Operating Temperature Range (Tamb) | -25 to +85 | °C |
| Tstg | Storage Temperature | -55 to 150 | °C |
THERMAL DATA
| Symbol | Description | Minidip | Sip | SO20 | Unit |
| Rth j-case | Thermal Resistance Junction-case | Max. | | 10 | | °C/W |
| Rth j-amb | Thermal Resistance Junction-ambient | Max. | 100 | 70 | 90 | °C/W |
