2962

Features:

 4 A Peak Output
45 V Min. Sustaining Voltage
Internal Clamp Diodes
TTL/PMOS/CMOS Compatible Inputs
 High-Speed Chopper


Pinout




Specifications

                        at T_J +150°C
Supply Voltage, V_CC . . . . . . . . . .  . . . . . .   45 V
Peak Output Current, I_OUT . . . . . . . . . . .   ±4 A
nput Voltage Range,
        V_IN . . . . . . . . .  . . . . . . . .   -0.3 V to +7.0 V
Package Power Dissipation,
        P_D . . . . . . . . . . . . . . . .  . . . . . .   See Graph
Operating Temperature Range,
        T_A . . . . . . . . . . . . . .  . . .   -20°C to +85°C
Storage Temperature Range,
        T_S . . . . . . . . . .  . . . . . .   -55°C to +150°C


Description

Using PWM to minimize power dissipation and maximize load efficiency, the UDN2962W dual driver is recommended for impact printer solenoids and stepper motors.  It is comprised of two source/sink driver pairs rated for continuous operation to ±3 A.  2962 can be connected to drive two independent loads or a single load in the full bridge configuration.  Both drivers include output clamp/flyback diodes, input gain and level shifting, a voltage regulator for single-supply operation, and pulse-width modulated output-current control circuitry.  Inputs are compatible with most TTL, DTL, LSTTL, and low-voltage CMOS or PMOS logic.

The peak output current and hysteresis for each source/sink pair is set independently.  Output current, threshold voltage, and hysteresis are set by the user's selection of external resistors.  At the specified output-current trip level, the source driver turns off.  The internal clamp diode then allows current to flow without additional input from the power supply.  When the lower current trip point is reached, the source driver turns back on.

The UDN2962W is in a 12-pin single in-line power-tab package.The tab is at ground potential and needs no insulation.  For high-current or high-frequency applications, external heat sinking may be required.