(China (Mainland))
Product Summary
The mb3778pfv-g-bnd-ef is a dual switching regulator control IC. It has a two-channel basic circuit that controls PWM system switching regulator power. Complete synchronization is achieved by using the same oscillator output wave. The mb3778pfv-g-bnd-ef can accept any two of the following types of output voltage: step-down, step-up, or voltage inversion (inverting voltage can be output to only one circuit). The mb3778pfv-g-bnd-ef low power consumption makes it ideal for use in portable equipment. Applications are (1)LCD monitor/panel; (2)Surveillance camera.
Parametrics
mb3778pfv-g-bnd-ef absolute maximum ratings: (1)Power Supply Voltage VCC: 20 V; (2)Error Amp Input Voltage VIN: −0.3 to +10 V; (3)Control Input Voltage VCTL: −0.3 to +20 V; (4)Collector Output Voltage VOUT: 20 V; (5)Collector Output Current IOUT: 75 mA; (6)Power Dissipation PD Ta ≤ +25 °C (SOP): 620 mW, Ta ≤ +25 °C (SSOP): 444 mW; (7)Operating Ambient Temperature Ta: −30 to +85 °C; (8)Storage Temperature Tstg: −55 to +125 °C.
Features
mb3778pfv-g-bnd-ef features: (1)Wide input voltage range : 3.6 V to 18 V; (2)Low current consumption : 1.7 mA Typ operation, 10 μA Max stand-by; (3)Wide oscillation frequency range: 1 kHz to 500 kHz; (4)Built-in timer latch short-circuit protection circuit; (5)Built-in under-voltage lockout circuit; (6)Built-in 2.46 V reference voltage circuit : 1.23 V output can be obtained from RT terminal; (7)Variable dead-time provides control over total range; (8)Built-in stand-by function: power on/off function; (9)Two types of packages (SOP-16pin : 1 type, SSOP-16pin : 1 type).
Diagrams
