TS19501CB10H Taiwan Semiconductor High Integrated Dimmable LED Controller with Spread Spectrum Frequency Modulation for Automotive Headlight DESCRIPTION FEATURES TS19501CB10H is a single channel LED driver of low- AEC-Q100 qualified with the following results: - Device temperature grade 1: -40C to 125C side-current sense. This device can operate in DCM, - Device HBM ESD classification level H2 BCM and CCM mode with full protection and - Device CDM ESD classification level C6 diagnostics. This device is dedicated and suited for Drives LEDs in Boost, Buck-Boost and SEPIC automotive headlight. This controller supports typical Topology topologies such as boost, buck-boost and SEPIC. Operation in DCM, BCM, CCM mode Output current regulation is based on average current Input Voltage 4.5V ~ 42V mode control supervised by a control loop. The fault Adjustable Switching Frequency 70k ~ 700kHz flag is connected to pull-up resistor from V for DC Low-Side Current Sense Internal Voltage Reference 150mV 3.3% highlighting the information of fault and fault status flag Both PWM Dimming and Analog Dimming is latched by the timer when output is low. Over Voltage Protection (OVP) Over Current Protection (OCP) APPLICATION Over Temperature Protection (OTP) Automotive LED Lighting: High and low Beam, Under Voltage Lockout (UVLO) Daytime Running Light, Turn indicator, Position Jitter function for effective spread spectrum to Light, Fog Light reduce EMI General Lighting Applications Fault Status flag and Internal Soft Start High Brightness LED Applications to RoHS Compliant Halogen-Free according to IEC 61249-2-21 MSOP-10EP Pin Definition: 1. EN 10. OUT 2. DIM 9. VIN 3. FLT 8. GND 4. CS 7. RT 5. COM 6. OVP Notes: MSL 3 (Moisture Sensitivity Level) per J-STD-020 TYPICAL APPLICATION CIRCUIT LED LED CO CO BOOST D BOOST D R 1 R 1 DMY DMY BUCK-BOOST BUCK-BOOST VIN VIN L1 L1 R R OVPH OVPH 9 6 9 6 VIN OVP VIN OVP RENH RENH PWM/Analog PWM/Analog 3 2 3 2 FLT FLT DIM FLT FLT DIM D D 2 2 C C IN CEN IN CEN 1 10 1 10 EN OUT EN OUT RG RG ROVPL ROVPL R Q R Q ENL R 1 ENL R 1 T T C 7 4 C 7 4 BAT BAT RT CS RT CS R R CC CC R R CCOM CS CCOM CS 5 8 C 5 8 C CC CC COM GND COM GND Buck-Boost Regulator Boost Regulator 1 Version: A1911 TS19501CB10H Taiwan Semiconductor (Note 1) ABSOLUTE MAXIMUM RATINGS (T = 25C unless otherwise specified) A PARAMETER SYMBOL LIMIT UNIT Battery power input Pin V -0.3 to 42 V IN FLT output to GND V -0.3 to 42 V FLT OUT voltage to GND V -0.3 to 20 V OUT EN voltage to GND V -0.3 to 5.5 V EN V -0.3 to 5.5 V DIM voltage to GND DIM CS voltage to GND V -0.3 to 5.5 V CS COM voltage to GND V -0.3 to 5.5 V COM OVP voltage to GND V -0.3 to 5.5 V OVP RT voltage to GND V -0.3 to 5.5 V RT Junction Temperature Range T -40 to +150 C J Storage Temperature Range T -65 to +150 C STG Lead Temperature (Soldering 10 sec) T 260 C LEAD Power Dissipation T =25C P 1.1 W A D ESD Rating (Human Body Model) HBM 2 kV ESD Rating (Charged Device Model) CDM 1 kV (Note 2) THERMAL PERFORMANCE PARAMETER SYMBOL TYP UNIT Thermal Resistance Junction to Ambient R 113 C/W JA Thermal Resistance Junction to Case R 38 C/W JC (Note 3) RECOMMENDED OPERATING CONDITION (T = 25C unless otherwise specified) A PARAMETER SYMBOL LIMIT UNIT Battery power input Pin V 8 to 38 V IN FLT output to GND V 0 to 38 V FLT OUT voltage to GND V 0 to 18 V OUT EN voltage to GND V 0 to 5 V EN V 0 to 5 V DIM voltage to GND DIM CS voltage to GND V 0 to 0.8 V CS COM voltage to GND V 1.2 to 3.6 V COM OVP voltage to GND V 1.6 to 3.1 V OVP RT voltage to GND V 1.2 V RT Storage Temperature Range T -55 to +150 C STG Operating Junction Temperature Range T -40 to +150 C J Operating Ambient Temperature Range T -40 to +125 C OPA 2 Version: A1911