VN1160/ VN1160-1/ VN1160T ® DIRECTION INDICATOR DRIVER FOR MOTORBIKE TARGET SPECIFICATION TYPE VN1160 RDS(on) Ilim VCC VN1160-1 0.08 Ω 12 A 40 V 3 VN1160T 2 1 3 1 COMPLETE DIRECTION INDICATOR IN A 3 PIN PACKAGE ■ REQUIRES ONLY ONE EXTERNAL CAPACITOR TO SET FLASHING FREQUENCY ■ DOUBLE FREQUENCY FLASHING IN LOW LOAD CONDITIONS ■ CYCLE BY CYCLE OVERTEMPERATURE SHUTDOWN ■ REVERSE BATTERY PROTECTION 2 TO-220 ■ TO251 (IPAK) 3 1 TO252 (DPAK) ORDER CODES TO-252 (DPAK) TO-251 (IPAK) TO-220 DESCRIPTION The VN1160, VN1160-1, VN1160T are a monolithic device made by using STMicroelectronics VIPower technology, intended for building a complete flashing unit for two wheel vehicles. The device is connected between the battery positive terminal (VCC pin) and a mechanical switch to the right and/or left bulbs. As soon as the series switch connects the OUT pin to the bulbs, the device begins to turn on/off with a 50% duty cycle. An external low voltage capacitor (220µF, 10V) VN1160 VN1160-1 VN1160T connected between the CEXT pin and the OUT pin stores energy for powering the device during the ON phase and sets the flashing frequency. When a low load is detected (output current lower than Idf), flashing frequency is automatically doubled. BLOCK DIAGRAM VCC CEXT CAPACITOR CHARGING CEXT SAWTOOTH GENERATOR CONTROL LOGIC FLASHING FREQUENCY REGULATION POWER MOSFET GATE DRIVER OVERVOLTAGE CLAMP CURRENT LIMITER LOW LOAD DETECTION February 1999 JUNCTION OVERTEMPERATURE OUT REVERSE BATTERY PROTECTION 1/10 1 VN1160/ VN1160-1/ VN1160T ABSOLUTE MAXIMUM RATING Symbol VCC Vdd ID - ID Vesd Ptot Tj Tstg Parameter TO-220 DC Supply Voltage CEXT Capacitor Voltage Maximum DC drain Current Reverse DC Output Current Electrostatic Discharge (R=1.5KΩ; C=100 pF) Power Dissipation TC = 25 °C Junction Operating Temperature Storage Temperature 55 Value IPAK 40 6.5 Internally Limited -5 2000 45 Internally Limited - 55 to 150 Unit DPAK 45 V V A A V W °C °C THERMAL DATA Symbol Parameter Rthj-case Thermal Resistance Junction-case Rthj-amb Thermal Resistance Junction-ambient TO-220 Value IPAK DPAK 2.2 3.33 3.33 °C/W 60 100 100 °C/W Max Max Unit CONNECTION DIAGRAM (TOP VIEW) 3 OUT 2 VCC 1 CEXT CURRENT AND VOLTAGE CONVENTIONS ICC VCC + VCC ICEXT CEXT Vds Buzzer VCC OUT Vdd 220mF, 10V IOUT VCEXT VOUT 2/10 1 2 x 10W + 2W 2 x 10W + 2W VN1160/ VN1160-1/ VN1160T ELECTRICAL CHARACTERISTICS (9V<VCC<16V; -20°C<Tj<85°C unless otherwise specified) POWER Symbol Vclamp ICEXT Vddcl Vddrcl RON Parameter VDS Clamp Voltage Supply Current from CEXT Pin CEXT Clamp Voltage CEXT Reverse Clamp Voltage On State Resistance IOUT=1.6A Test Conditions Min 40 Typ 45 Max 50 Unit V VDS=0V; Vdd=5V; Tj=25 °C 810 880 950 µA ICEXT=2mA; VDS=0V TBD 7.2 TBD V ICEXT=-2mA; VDS=0V -1.0 -0.3 V 0.08 Ω Vdd=5V; IOUT=1.6A; Tj=25 °C SWITCHING (VCC=Ven=13.5V) Symbol dI/dt(on) dI/dt(off) Parameter Turn-on Current Slope Turn-off Current Slope Test Conditions Min Typ 0.02 0.02 Max Unit A/µs A/µs Test Conditions VCC=13.5V; 220µF between CEXT and OUT; RLOAD=8Ω Min Typ Max Unit 1.08 1.33 1.58 Hz RLOAD=8Ω RLOAD=8Ω DYNAMIC PARAMETERS Symbol fosc Vch Vcl Parameter Self Oscillating Frequency Sawtooth High Level between CEXT and OUT Sawtooth Low Level between CEXT and OUT VCC=13.5V 6 V VCC=13.5V 4.5 V PROTECTIONS Symbol Ilim Tjsh Tjrs Idf1 Idf2 Parameter Test Conditions Drain Current Limit Vdd=5V; VDS=13.5V Overtemperature Shutdown Overtemperature Reset Double Frequency VCC=9.5V (*) Flashing Threshold Double Frequency VCC=15.5V (*) Flashing Threshold Min Typ 12 Max Unit A °C °C 816 940 1066 mA 1062 1240 1417 mA 125 100 (*) See double frequency test configuration 3/10 1 VN1160/ VN1160-1/ VN1160T SWITCHING CHARACTERISTICS ILOAD 80% dI/dt(on) dI/dt(off) 20% t DOUBLE FREQUENCY TEST CONFIGURATION 10V<VCC<15V 10V<VCC<15V VCC VCC CEXT CEXT OUT OUT 0.33Ω 10W 10W Test1: no defect, minimum load. The VN1160 must oscillate at f=Fosc. 10W 2W 68Ω Test2: defect, maximum load. The VN1160 must oscillate at f=2 x Fosc. 4/10 2 1 VN1160/ VN1160-1/ VN1160T FUNCTIONAL DESCRIPTION 1) Normal operation (see Fig.1) When a nominal load (higher than a 20W bulb) is connected to the OUT pin, the device oscillates by charging the CEXT capacitor up to the threshold voltage Vch quickly, and then slowly discharging CEXT to the threshold voltage Vcl by a constant current ICEXT. The self oscillating frequency of the device is determined by the relation : Icext fosc = ----------------------------------------------------------2 × C ext × ( V ch – Vcl ) 2) Low load condition (see Fig.1) If the load is lower than the load of a 14W bulb, the device will detect the low load at the end of the ON phase, and will double the oscillating frequency. 3) Overload and overtemperature shutdown (see Fig.1) In the case of a short circuit of the load, the output current IOUT is limited to the ILIM value. If the junction temperature becomes too hot (Tj > Tjsh), the device turns off, and waits for the next cycle to turn on providing that the junction temperature has cooled to below Tjrs. The duty cycle is close to 50%. 5/10 1 VN1160/ VN1160-1/ VN1160T Figure1: Waveforms NORMAL OPERATION VCC VOUT Vch Vcl Vdd fosc IOUT LOW LOAD CONDITION VCC VOUT Vch Vcl Vdd 2 fosc IOUT Idf OVERLOAD AND OVERTEMPERATURE SHUTDOWN VCC VOUT Vch Vcl Vdd ILIM IOUT TJ Tjsh Tjrs The device stays OFF and restarts at next cycle, if Tj<Tjrs 6/10 1 1 VN1160/ VN1160-1/ VN1160T TO-220 MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. MIN. TYP. MAX. A 4.40 4.60 0.173 0.181 C 1.23 1.32 0.048 0.051 D 2.40 2.72 0.094 0.107 D1 1.27 0.050 E 0.49 0.70 0.019 0.027 F 0.61 0.88 0.024 0.034 F1 1.14 1.70 0.044 0.067 F2 1.14 1.70 0.044 0.067 G 4.95 5.15 0.194 0.203 H2 10.0 10.40 0.393 0.409 L2 16.4 0.645 L4 13.0 14.0 0.511 0.551 L5 2.65 2.95 0.104 0.116 L6 15.25 15.75 0.600 0.620 L7 6.2 6.6 0.244 0.260 L9 3.5 3.93 0.137 DIA. 3.75 3.85 0.147 0.154 0.151 7/10 1 VN1160/ VN1160-1/ VN1160T TO-251 (IPAK) MECHANICAL DATA mm. DIM. MIN. inch MAX. MIN. A 2.2 TYP 2.4 0.086 0.094 A1 0.9 1.1 0.035 0.043 A3 0.7 1.3 0.027 0.051 B 0.64 0.9 0.025 0.031 B2 5.2 5.4 0.204 0.212 B3 TYP. MAX. 0.85 B5 0.033 0.3 0.012 B6 0.95 0.037 C 0.45 0.6 0.017 0.023 C2 0.48 0.6 0.019 0.023 D 6 6.2 0.236 0.244 E 6.4 6.6 0.252 0.260 G 4.4 4.6 0.173 0.181 H 15.9 16.3 0.626 0.641 L 9 9.4 0.354 0.370 L1 0.8 1.2 0.031 0.047 L2 0.8 1 0.031 0.039 A1 C2 A3 A C H B B6 = 1 = 2 G = = = E B2 = 3 B5 L D B3 L2 L1 8/10 1 1 VN1160/ VN1160-1/ VN1160T TO-252 (DPAK) MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. MIN. TYP. MAX. A 2.2 2.4 0.086 0.094 A1 0.9 1.1 0.035 0.043 A3 0.03 0.23 0.001 0.009 B 0.64 0.9 0.025 0.035 B2 5.2 5.4 0.204 0.212 C 0.45 0.6 0.017 0.023 C2 0.48 0.6 0.019 0.023 D 6 6.2 0.236 0.244 E 6.4 6.6 0.252 0.260 G 4.4 4.6 0.173 0.181 H 9.35 10.1 0.368 0.397 L2 0.8 L4 0.031 0.6 1 0.023 0.039 A1 C2 A H A2 C DETAIL "A" L2 D = G 1 = 2 = = = E = B2 3 B DETAIL "A" L4 9/10 1 1 1 VN1160/ VN1160-1/ VN1160T Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. 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