Supertex inc. CL7 Linear, 100mA, Constant Current LED Driver with Enable Input Features General Description ►► 100mA ±5% constant current drive ►► Built-in reverse polarity protection ►► Logic level enable ►► Dimmable via EN pin ►► Overtemperature protection ►► 90V max rating for transient immunity The CL7 is a linear fixed current regulator designed for driving high brightness LEDs at 100mA from nominal 12V, 24V, and 48V power supplies. With a maximum rating of 90V, it is able to withstand transients without the need for additional transient protection circuitry. The CL7 is offered in the 8-Lead SOIC package. An active low enable input (EN) allows logic level control of the LED for on/off control or PWM dimming. The enable input has 100kΩ pull-down resistance. For applications not needing an enable input, refer to the CL6 data sheet. Applications ►► ►► ►► ►► Flashlights Specialty lighting Low voltage signage Low voltage lighting Over temperature protection shuts off the LED current when the die temperature rises above 135°C (nominal). Full LED current resumes when the die temperature falls below 105°C (nominal). Typical Application Circuit VIN 100mA VDD Host Controller EN OUT Control 100kΩ CL7 GND Doc.# DSFP-CL7 A030314 Supertex inc. www.supertex.com CL7 Ordering Information Pin Configuration Part Number Package Options Packing CL7SG-G 8-Lead SOIC (w/heat slug) 2500/Reel -G denotes a lead (Pb)-free / RoHS compliant package Absolute Maximum Ratings Parameter GND 1 8 VDD GND 2 7 OUT GND 3 6 NC GND 4 5 EN Heat Slug Value Supply voltage, VDD -25V to +100V Output voltage, VOUT -25V to +100V Enable voltage, VEN -0.5V to +6.5V Operating junction temperature 8-Lead SOIC w/heat slug (top view) (Heat slug potential is at ground) Product Marking -40°C* Storage temperature CL7 Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. Continuous operation of the device at the absolute rating level may affect device reliability. All voltages are referenced to device ground. LLLL Package may or may not include the following marks: Si or 8-Lead SOIC w/heat sug Note: * Maximum junction temperature internally limited. Pin Designation Typical Thermal Resistance Package θja 8-Lead SOIC (w/heat slug) 84OC/W* YY = Year Sealed WW = Week Sealed L = Lot Number = “Green” Packaging YYWW -65°C to +150°C * Mounted on JEDEC test PCB (2s 2p) Pin Name VDD VDD OUT Output Description Supply voltage for the CL7 Connect the LED between this pin and the supply voltage GND Ground Circuit common EN Enable Active low enable input - this input has an internal 100kΩ pull-down resistance Recommended Operating Conditions (all voltages with respect to GND pin) Sym Parameter VDD Supply voltage VOUT Voltage at OUT pin(1) TJ Min Typ Max Units Normal Extended 6.5 6.5 - 28 90 V --- Normal Extended 4.0 4.0 - 28 90 V --- -40 - 119 C --- Junction temperature(2) o Conditions Note: 1. Continuous operation at high VOUT voltages may result in activation of over temperature protection. Use appropriate heat sinking. 2. Maximum junction temperature internally limited. Thermal Characteristics (Guaranteed by design – not production tested ) Sym Parameter Min Typ Max TLIM Over-temperature limit 120 135 150 O THYS Over-temperature hysteresis - 30 - O Doc.# DSFP-CL7 A030314 2 Units Conditions C --- C --- Supertex inc. www.supertex.com CL7 Electrical Characteristics (Over normal recommended operating conditions unless otherwise specified. All voltages with respect to GND pin. Production tested @ 25OC.) Sym Parameter Min Typ Max Units Conditions IDD Current into VDD pin 3.0 5.0 10 mA --- IOUT Current into OUT pin1 95 90 50 100 100 - 105 110 120 mA Normal conditions, 25°C Normal conditions, full temp2 Extended conditions IOUT(OFF) Current into OUT pin with VDD pin open or EN = 1 - - 10 µA VDD = open VEN(ON) Enable voltage, on - - 0.8 V --- VEN(OFF) Enable voltage, off 2.4 - - V --- REN Enable pull-down resistance - 100 - kΩ --- VOFF Voltage at VDD to shut off LED current - - 1.0 V IOUT < 10µA tON On delay, EN to OUT - 3.0 - µs EN = 0V tOFF Off delay, EN to OUT - 0.1 - µs EN = 5V tRISE Current rise time, EN to OUT - 4.0 - µs EN = 0V tFALL Current fall time, EN to OUT - 0.3 - µs EN = 5V Note: 1. Continuous operation at high VOUT voltages may result in activation of over temperature protection. Use appropriate heat sinking. 2. Maximum junction temperature internally limited. Timing EN tON tOFF tRISE tFALL 90% IOUT 10% IOUT vs Temperature IOUT (normalized) 1.05 1.00 0.95 0.90 0.85 -50 Doc.# DSFP-CL7 A030314 -25 0 25 50 75 Temperature (OC) 3 100 125 Supertex inc. www.supertex.com CL7 Application Circuits PWM Dimming 2-Level LED Circuit VIN EN = 0: EN = 1: (1-D) • 100mA VDD PWM signal EN OUT VDD EN Control OUT Control 100kΩ 100kΩ CL7 CL7 GND GND D is the portion of time the PWM signal is high. Doc.# DSFP-CL7 A030314 VIN 107.5mA 7.5mA 4 Minimum VIN is increased by LED drop. Supertex inc. www.supertex.com CL7 8-Lead SOIC (Narrow Body w/Heat Slug) Package Outline (SG) 4.90x3.90mm body, 1.70mm height (max), 1.27mm pitch D1 D 8 8 Note 1 (Index Area D/2 x E1/2) Exposed Thermal Pad Zone E1 E E2 1 1 Bottom View Top View θ1 View B Note 1 A h h A A2 L2 Seating Plane A1 e L b Side View L1 View A-A A θ Gauge Plane Seating Plane View B Notes: 1. If optional chamfer feature is not present, a Pin 1 identifier must be located in the index area indicated. The Pin 1 identifier can be: a molded mark/ identifier; an embedded metal marker; or a printed indicator. Symbol A MIN 1.25* Dimension NOM (mm) MAX 1.70 A1 A2 b 0.00 1.25 0.31 - - - 0.15 1.55* 0.51 D D1 E E1 E2 4.80* 3.30 5.80* 3.80* 2.29 4.90 6.00 † - 5.00* 3.81 † 3.90 e † - 6.20* 4.00* 2.79 † 1.27 BSC h L 0.25 0.40 - - 0.50 1.27 L1 L2 θ θ1 0 5O - - 8 15O O 1.04 REF 0.25 BSC O JEDEC Registration MS-012, Variation BA, Issue E, Sept. 2005. * This dimension is not specified in the JEDEC drawing. † This dimension differs from the JEDEC drawing. Drawings not to scale. Supertex Doc. #: DSPD-8SOSG, Version D041009. (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to http://www.supertex.com/packaging.html.) Supertex inc. does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such applications unless it receives an adequate “product liability indemnification insurance agreement.” Supertex inc. does not assume responsibility for use of devices described, and limits its liability to the replacement of the devices determined defective due to workmanship. No responsibility is assumed for possible omissions and inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications refer to the Supertex inc. (website: http//www.supertex.com) Supertex inc. ©2014 Supertex inc. All rights reserved. Unauthorized use or reproduction is prohibited. Doc.# DSFP-CL7 A030314 5 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com