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L9997ND
DUAL HALF BRIDGE DRIVER
gerTpi'
L9997ND
DUAL HALF BRIDGE DRIVER
n HALF BRIDGE OUTPUTS WITH TYPICAL
RON = 0.79
n OUTPUT CURRENT CAPABILITY i1.2A
n OPERATING SUPPLY VOLTAGE RANGE 7V
TO 16.5V
n SUPPLY OVERVOLTAGE PROTECTION
FUNCTION FOR Vvs UP TO 40V
a VERY LOW QUIESCENT CURRENT IN
STANDBY MODE < 1pA
n CMOS COMPATIBLE INPUTS WITH HYS-
TERESIS
n OUTPUT SHORT-CIRCUIT PROTECTION
n THERMAL SHUTDOWN
a REAL TIME DIAGNOSTIC: THERMAL OVER-
LOAD, OVERVOLTAGE
DESCRIPTION
The L9997ND is a monolithic integrated driver, in
BCD technology intended to drive various loads,
BLOCK DIAGRAM
MULTIPOWER BCD TECHNOLOGY
SO20 (12+4+4)
ORDERING NUMBERS: L9997ND
L9997NDO13TR
including DC motors. The circuit is optimized for
automotive electronics enviromental conditions.
REFERENCE -
PROTECTION
FUNCTIONS 5V
Cr:- DRIVER II-EE-
[D9] i, ii. l , DRIVER2
4...7 14...17
April 1999
L9997ND
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
Vvsoc DC Supply Voltage -0.3 to 26 V
VvsP Supply Voltage Pulse (T < 400ms) 40 V
IOUT DC Output Current $1.8 A
VIN1,2 DC Input Voltage -0.3 to 7 V
VEN Enable Input Voltage -O.3 to 7 V
VDIAG DC Output Voltage -0.3 to 7 V
IOUT DC Output Short-circuit Current -0.3V < VOUT < Vs + 0.3V internally limited
IDIAG DC Sink Current -0.3V < VDG < 7V internally limited
PIN CONNECTION (Top view)
vs UE 1 V 20 CIC) N.C.
OUT2 CE 2 19 D OUT1
N.C. CI: 3 18 CIC) N.C.
GND CE 4 17 ID GND
GND C]: 5 16 CIC) GND
GND CE 6 15 CIC) GND
GND C]: 7 14 CIC) GND
N.C. CE 8 13 CIC) N.C.
IN2 C]: 9 12 D INI
EN CE 10 11 CIC) DIAG
095AT166
PIN FUNCTIONS
N. Name Function
1 VS Supply Voltage
2 OUT2 Channel 2: Push-Pull power output with intrinsic body diode
3, 8, 13, NC NC: Not Connected
4 to 7, GND Ground: signal - and power - ground, heat sink
14 to 17
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)
THERMAL DATA
Symbol Parameter Value Unit
Tms Thermal Shut-down Junction Temperature 165 "C
TiTSH Thermal Shut-down Threshold Hysteresis 25 K
Rm Hmb Thermal Resistance Junction-Ambient (1) 50 K/W
Rm wins Thermal Resistance Junction-Pins 15 K/W
(1) With 6cm2 on board heatsink area.
