Datasheet

ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
VSDC
DC Supply Voltage -0.3 to 26 V
V
VSP
Supply Voltage Pulse (T < 400ms) 40 V
I
OUT
DC Output Current
±
1.8 A
V
IN1,2
DC Input Voltage -0.3 to 7 V
V
EN
Enable Input Voltage -0.3 to 7 V
V
DIAG
DC Output Voltage -0.3 to 7 V
I
OUT
DC Output Short-circuit Current -0.3V < V
OUT
< V
S
+ 0.3V internally limited
I
DIAG
DC Sink Current -0.3V < V
DG
< 7V internally limited
THERMAL DATA
Symbol Parameter Value Unit
T
jTS
Thermal Shut-down Junction Temperature 165 °C
T
jTSH
Thermal Shut-down Threshold Hysteresis 25 K
R
th j-amb
Thermal Resistance Junction-Ambient
(1)
50 K/W
R
th j-pins
Thermal Resistance Junction-Pins 15 K/W
(1) With 6cm
2
on board heatsink area.
V
S
OUT2
N.C.
GND
GND
GND
GND
N.C.
IN2 IN1
N.C.
GND
GND
GND
GND
N.C.
OUT1
N.C.1
3
2
4
5
6
7
8
9
18
17
16
15
14
12
13
11
19
10
20
EN DIAG
D95AT166
PIN CONNECTION
(Top view)
PIN FUNCTIONS
N. Name Function
1 VS Supply Voltage
2 OUT2 Channel 2: Push-Pull power output with intrinsic body diode
3, 8, 13,
18,20
NC NC: Not Connected
4 to 7,
14 to 17
GND Ground: signal - and power - ground, heat sink
9 IN2 Input 2: Schmitt Trigger input with hysteresis (non-inverting signal control)
10 EN Enable: LOW or not connected on this input switches the device into standby mode and the
outputs into tristate
11 DIAG Diagnostic: Open Drain Output that switches LOW if overvoltage or overtemperature is
detected
12 IN1 Input 1: Schmitt Trigger input with hysteresis (non-inverting signal control)
L9997ND
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