U6083B ATMEL Corporation, U6083B Datasheet
U6083B
Available stocks
Related parts for U6083B
U6083B Summary of contents
Page 1
... PWM Power Control with Interference Suppression Description The U6083B is a PWM IC in bipolar technology for the control of an N-channel power MOSFET used as a high- side switch. The IC is ideal for use in the brightness Features D Pulse-width modulation kHz clock frequency D Protection against short circuit, load dump over-volt- ...
Page 2
... U6083B Pin Description GND Osc 4 95 9944 Functional Description Pin 1, Supply Voltage Overvoltage Detection Stage 1: If overvoltages V > (typ.) occur, the external Batt transistor is switched off and switched on again at V < 18.5 V (hysteresis). Batt Stage > 28.5 V (typ), the voltage limitation of the IC is ...
Page 3
... VDE 0879 part 3/4.81 Test conditions refering to figure 2. Application circuit according to figure Load: nine 4-W lamps in parallel osc Duty cycle V Batt f Osc C Batt 4 and possible 4 Figure 2. Voltage spectrum of on-board radio reception U6083B dV / – – Batt S 3 and < 100 4 ...
Page 4
... U6083B Pins 5 and Pin 6, Short-Circuit Protection and Current Sensing 1. Short-Circuit Detection and Time Delay, t The lamp current is monitored by means of an external shunt resistor. If the lamp current exceeds the threshold for the short-circuit detection circuit (V duty cycle is switched over to 100% and the capacitor C ...
Page 5
... T1 – – Pin 5 Batt – dis – dis Pin / max U6083B Min. Typ. Max. 7.9 25 24.5 27.0 s 4.4 5.0 5.6 4.8 5.4 6.0 18.3 20.0 21.7 16.7 18.5 20.3 25.5 28.5 32.5 19.5 23.0 26.5 18.5 20.0 21 100 120 75 90 ...
Page 6
... U6083B Electrical Characteristics (continued –40 to +110 16.5 V, (basic function is guaranteed between 6 9.0 V) reference point ground, amb Batt unless otherwise specified (see figure 1). All other values refer to Pin GND (Pin 2). Parameters Gate output Voltage Low level Batt = 150 High level, duty cycle 100% ...
Page 7
... Application Rev. A3, 11-Apr-01 Figure 3. Application U6083B 7 (9) ...
Page 8
... U6083B Package Information Package DIP8 Dimensions (9) 9.8 9.5 1.64 1.44 4.8 max 6.4 max 3.3 0.5 min 0.36 max 0.58 2.54 0.48 7.62 5 technical drawings according to DIN specifications 4 7.77 7.47 9.8 8.2 13021 Rev. A3, 11-Apr-01 ...
Page 9
... Data sheets can also be retrieved from the Internet: Atmel Germany GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 (0)7131 67 2594, Fax number: 49 (0)7131 67 2423 Rev. A3, 11-Apr-01 U6083B http://www.atmel–wm.com 9 (9) ...