SKHVLJ000 Datasheet| Signal | 1/0 | Fype | Description | | RSCK | I | VCMOS | Serial clock input. Clock source used to read from and write to the RDRAM control registers. | | SAO | I | SVDD | Serial Presence Detect Address 0. | | SA1 | I | SVDD | Serial Presence Detect Address l. | | SA2 | I | SVDD | Serial Presence Detect Address 2. | | SCL | I | SVDD | Serial Presence Detect Clock. | | SDA | 1/0 | SVDD | Serial Presence Detect Data (Open Collector l/0). | | SIN | 1/0 | VCMOS | Serial l/0 for reading from and writing to the control registers. Attaches to Sl00 of the first RDRAM on the module. | | SOUT | 1/0 | VCMOS | Serial l/0 for reading from and writing to the control registers. Attaches to Sl01 of the last RDRAM on the module. | | SVDD | | | SPD Voltage. Used for signals SCL, SDA, SWP, SAO, SAl and SA2. | | SWP | I | SVDD | Serial Presence Detect Write Protect (active high). When low, the SPD can be written as well as read. | | VCMOS | | | CMOS l/0 Voltage. Used for signals CMD, SCK, SIN, SOUT. | | VDD | | | Supply voltage for the RDRAM core and interface logic. | | VREF | | | Logic threshold reference voltage for RSL signals. | | | | |
SKHVLJ000 Price Designed for bidirectional pulse-width modulated current control of inductive loads, the A3951SB and A3951SW are capable of continuous output currents to +2 A and operating voltages t0 50 V. Internal fixed off-time PWM current-control circuitry can be used to regulate the maximum load current to a desired value. The peak load current limit is set by the user's selection of an input reference voltage and external sensing resistor. The fixed off-time pulse duration is set by a user- selected external RC timing network. Internal circuit protection includes thermal shutdown with hysteresis, transient suppression diodes, and crossover-current protection. Special power-up sequencing is not required. The A3951SB and A3951SW are improved replacements for the UDN2953B and UDN2954W, respectively. For new system de- signs, the A3952SB/SEB/SLB/SW are recommended. SKHVLJ000 on stock| Characteristic | Symbol | Test Condition | Min | Typ | Max | Unit | | Collector-Base breakdown voltage | BVCBO | Ic=50uA, IE=O | 40 | | | V | | Collector-Emitter breakdown voltage | BVCEO | Ic=lrriA, IB=O | 15 | | | V | | Emitter-Base breakdown voltage | BVEBO | IE=50UA, Ic=O | 7 | | | V | | Collector cut-off current | ICBO | VCB=30V, IE=O | | | 0.1 | ¨A | | Emitter cut-off current | IEBO | VEB=5V, IC=O | | | 0.1 | A | | | hFEl | VCE=2V, Ic=0.5A | 160 | | 320 | | | DC current gain | hFE2 | VCE=2V, Ic=2A | 100 | | | | | Collector-Emitter saturation voltage | VCE(sat) | Ic=3A, IB=lOOmA | | | 0.4 | V | | Transition frequency | fT | VCE=6V, IE=-50mA | | 150 | | MHz | | Collector output capacitance | Cob | VCB=20V, IE=O, f=lMHz | | | 50 | pF | | | | | | | |
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