VIPER12A STMicroelectronics, VIPER12A Datasheet
VIPER12A
Available stocks
Related parts for VIPER12A
VIPER12A Summary of contents
Page 1
... CURRENT MODE CONTROL n AUXILIARY UNDERVOLTAGE LOCKOUT WITH HYSTERESIS n HIGH VOLTAGE START UP CURRENT SOURCE n OVERTEMPERATURE, OVERCURRENT AND OVERVOLTAGE PROTECTION WITH AUTORESTART DESCRIPTION The VIPer12A combines a dedicated current mode PWM controller with a high voltage Power BLOCK DIAGRAM REGULATOR INTERNAL SUPPLY _ VDD 8/14. 42V ...
Page 2
... VIPer12ADIP / VIPer12AS PIN FUNCTION Name Power supply of the control circuits. Also provides a charging current during start up thanks to a high voltage current source connected to the drain. For this purpose, an hysteresis comparator monitors the V voltage and provides two thresholds Voltage value (typically 14.5V) at which the device starts switching and turns off the start up ...
Page 3
... D I =0.2A; T =100° =0.1A; V =300V (See fig. (See note 1) I =0.2A; V =300V (See fig. (See note 1) V =25V DS VIPer12ADIP / VIPer12AS Value Unit -0.3 ... 730 V -0.3 ... 400 V Internally limited A 0 ... 200 V 1.5 kV Internally limited C -40 to 150 C -55 to 150 C voltage has reached V ...
Page 4
... VIPer12ADIP / VIPer12AS ELECTRICAL CHARACTERISTICS (T SUPPLY SECTION Symbol Parameter Start Up Charging I DDch Current Start Up Charging I Current DDoff in Thermal Shutdown Operating Supply Current I DD0 Not Switching Operating Supply Current I DD1 Switching D Restart Duty Cycle RST V Undervoltage DD V DDoff Shutdown Threshold V V Start Up Threshold ...
Page 5
... Figure 1 : Rise and Fall Time 90 10% Figure 2 : Start Up VDD Current DD0 V DDhyst V V DDoff DDon I DDch Figure 3 : Restart Duty Cycle DDon V DDoff ------------------------- RST VDD FB CONTROL t rv VIPer12A 100 kHz VIPer12ADIP / VIPer12AS << Coss DRAIN 300V SOURCE VDD DRAIN FB CONTROL SOURCE 2V VIPer12A 100V 5/15 ...
Page 6
... VIPer12ADIP / VIPer12AS Figure 4 : Peak Drain Current Vs. Feedback Current Dpeak 1/F OSC I FBsd The drain current limitation is obtained for VFB = 0 V, and a negative current is drawn from the FB pin. See the Application section for further details. Figure 5 : Thermal Shutdown HYST DDon 6/15 t 18V ...
Page 7
... Figure 6 : Switching Frequency vs Temperature 1.01 1 0.99 0.98 0.97 -20 Figure 7 : Current Limitation vs Temperature 1.04 1.03 1.02 1.01 1 0.99 0.98 0.97 0.96 0.95 0.94 -20 Vdd = 10V ... 35V Temperature (°C) Vin = 100V Vdd = 20V Temperature (°C) VIPer12ADIP / VIPer12AS 100 120 100 120 7/15 ...
Page 8
... VIPer12ADIP / VIPer12AS Figure 8 : Rectangular U-I output characteristics for battery charger RECTANGULAR U-I OUTPUT CHARACTERISTIC A complete regulation scheme can achieve combined and accurate output characteristics. Figure 8 presents a secondary feedback through an optocoupler driven by a TSM101. This device offers two operational amplifiers and a voltage reference, thus allowing the regulation of both output voltage and current ...
Page 9
... V. For low drain currents, the formula (1) is valid as long as IFB satisfies I internal threshold of the VIPer12A this threshold the device will stop switching. This is represented on figure 4, and I specified in the PWM COMPARATOR SECTION. Actually, as soon as the drain current is about 12% ...
Page 10
... DDovp V DDon V DDoff OVERVOLTAGE THRESHOLD An overvoltage detector on the V VIPer12A to reset itself when This is illustrated in figure 12, which shows DDovp the whole sequence of an overvoltage event. Note t that this event is only latched for the time needed reach V DD resumes normal operation automatically. , the device ...
Page 11
... TYP 0.65 b 0.35 b1 0. 4.8 5 1.27 e3 3.81 F 3 0.8 VIPer12ADIP / VIPer12AS inch MAX. MIN. TYP. 1.75 0.25 0.003 1.65 0.85 0.025 0.48 0.013 0.25 0.007 0.5 0.010 45 (typ.) 5 0.188 6.2 0.228 0.050 0.150 4 0.14 1.27 0.015 0.6 8 (max.) 1 ...
Page 12
... VIPer12ADIP / VIPer12AS Plastic DIP-8 MECHANICAL DATA DIM Package Weight 12/15 mm. MIN. TYP 0.38 2.92 3.30 0.36 0.46 1.14 1.52 0.20 0.25 9.02 9.27 7.62 7.87 6.10 6.35 2.54 7.62 2.92 3.30 Gr. 470 MAX. 5.33 4.95 0.56 1.78 0.36 10.16 8.26 7.11 10 ...
Page 13
... Tube length (± 0. (± 0.1) All dimensions are in mm 1.5 1.5 5.5 4.5 2 End Top No components cover 500mm min tape VIPer12ADIP / VIPer12AS 100 2000 532 3.2 6 0.6 REEL DIMENSIONS Base Q.ty 2500 Bulk Q.ty 2500 A (max) 330 B (min) 1.5 C (± -0) 12 ...
Page 14
... VIPer12ADIP / VIPer12AS A 14/15 DIP-8 TUBE SHIPMENT (no suffix) C Base Q.ty Bulk Q.ty Tube length (± 0. (± 0.1) All dimensions are in mm. 20 1000 532 8.4 11.2 0 ...
Page 15
... STMicroelectronics - Printed in ITALY- All Rights Reserved. Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. The ST logo is a trademark of STMicroelectronics STMicroelectronics GROUP OF COMPANIES http://www.st.com VIPer12ADIP / VIPer12AS 15/15 ...