VN1160 STMICROELECTRONICS | Alldatasheet

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Technical content

■ 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

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 (V CC 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) 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 I df), flashing frequency is automatically doubled. TYPE R DS(on) Ilim VCC VN1160 VN1160-1 VN1160T 0.08 Ω 12 A 40 V TO-220 TO251 (IPAK) ORDER CODES TO-252 (DPAK) TO-251 (IPAK) VN1160 VN1160-1 TO252 (DPAK) TO-220 VN1160T BLOCK DIAGRAM OVERVOLTAGE POWER MOSFET CURRENT CEXT OUT CLAMP JUNCTION CEXT CAP ACITOR CHARGING SAWTOOTH GENERATOR CONTROL LOGIC REVERSE BA TTERY PROTECTION LOW LOAD DETECTION VCC LIMITER OVERTEMPERA TURE FLASHING FREQUENCY REGULA TION GATE DRIVER

CONNECTION DIAGRAM (TOP VIEW) CURRENT AND VOLTAGE CONVENTIONS Symbol Parameter Value Unit TO-220 IPAK DPAK VCC DC Supply Voltage 40 V Vdd CEXT Capacitor Voltage 6.5 V ID Maximum DC drain Current Internally Limited A - ID Reverse DC Output Current - 5 A Vesd Electrostatic Discharge (R=1.5KΩ ; C=100 pF) 2000 V Ptot Power Dissipation TC = 25 °C 55 45 45 W Tj Junction Operating Temperature Internally Limited °C Tstg Storage Temperature - 55 to 150 °C Symbol Parameter Value Unit TO-220 IPAK DPAK R thj-case Thermal Resistance Junction-case Max 2.2 3.33 3.33 °C/W R thj-amb Thermal Resistance Junction-ambient Max 60 100 100 °C/W OUT VCC CEXT VCC + VCCBuzzer Vds VOUT VCEXT Vdd ICEXT ICC IOUT 220mF, 10V 2 x 10W + 2W 2 x 10W + 2W OUT VCC CEXT

ELECTRICAL CHARACTERISTICS (9V<VCC <16V; -20°C<Tj<85°C unless otherwise specified) POWER SWITCHING (V CC =V en=13.5V) DYNAMIC PARAMETERS PROTECTIONS (*) See double frequency test configuration Symbol Parameter Test Conditions Min Typ Max Unit Vclamp VDS Clamp Voltage I OUT =1.6A 40 45 50 V ICEXT Supply Current from CEXT Pin VDS =0V; Vdd=5V; Tj=25 °C 810 880 950 µA Vddcl CEXT Clamp Voltage I CEXT =2mA; VDS =0V TBD 7.2 TBD V Vddrcl CEXT Reverse Clamp Voltage ICEXT =-2mA; VDS =0V -1.0 -0.3 V R ON On State Resistance V dd=5V; IOUT =1.6A; Tj=25 °C 0.08 Ω Symbol Parameter Test Conditions Min Typ Max Unit dI/dt(on) Turn-on Current Slope R LOAD =8Ω 0.02 A/ µs dI/dt(off) Turn-off Current Slope R LOAD =8Ω 0.02 A/ µs Symbol Parameter Test Conditions Min Typ Max Unit fosc Self Oscillating Frequency VCC =13.5V; 220µF between CEXT and OUT; RLOAD =8Ω 1.08 1.33 1.58 Hz Vch Sawtooth High Level between CEXT and OUT VCC =13.5V 6 V Vcl Sawtooth Low Level between CEXT and OUT VCC =13.5V 4.5 V Symbol Parameter Test Conditions Min Typ Max Unit Ilim Drain Current Limit V dd=5V; VDS =13.5V 12 A Tjsh Overtemperature Shutdown 125 °C Tjrs Overtemperature Reset 100 °C Idf1 Double Frequency Flashing Threshold VCC =9.5V (*) 816 940 1066 mA Idf2 Double Frequency Flashing Threshold VCC =15.5V (*) 1062 1240 1417 mA

t ILOAD 80% 20% dI/dt(off)dI/dt(on) DOUBLE FREQUENCY TEST CONFIGURATION OUT 10V<V CC <15V 10W 10W VCC CEXT 0.33Ω Test1: no defect, minimum load. The VN1160 must oscillate at f=Fosc. OUT 10V<V CC <15V 10W 2W VCC CEXT 68Ω Test2: defect, maximum load. The VN1160 must oscillate at f=2 x Fosc.

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 : The duty cycle is close to 50%. 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 T jrs. fosc Icext

Figure1: Waveforms IOUT VOUT Vdd VCC Vch Vcl IOUT VOUT Vdd VCC Vch Vcl Idf IOUT VOUT Vdd VCC Vch Vcl TJ Tjsh Tjrs ILIM fosc 2 fosc The device stays OFF and restarts at next cycle, if Tj<Tjrs NORMAL OPERATION LOW LOAD CONDITION OVERLOAD AND OVERTEMPERATURE SHUTDOWN

DIM. mm. inch 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 0.154

DIM. mm. inch A 2.2 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 0.85 0.033 B5 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 TO-251 (IPAK) MECHANICAL DATA A C H D LL2 1 3 = = B E G = = = =

DIM. mm. inch 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 0.031 L4 0.6 1 0.023 0.039 DL2 1 3 B E G A C H A1 DETAIL "A" DETAIL "A" TO-252 (DPAK) MECHANICAL DATA

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