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LM3433 Datasheet(PDF) 5 Page - Texas Instruments |
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LM3433 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 15 page LM3433 www.ti.com SNVS535B – OCTOBER 2007 – REVISED MARCH 2008 Electrical Characteristics Specifications in standard type face are for TJ = 25°C and those with boldface type apply over the full Operating Temperature Range ( TJ = −40°C to +125°C). Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent the most likely parametric norm at TJ = +25ºC, and are provided for reference purposes only. Unless otherwise stated the following conditions apply: VEE = -12.0V and VIN = +3.3V with respect to CGND. Symbol Parameter Conditions Min(1) Typ(2) Max(1) Units SUPPLY CURRENT IINVEE VEE Quiescent Current EN = CGND 3 19 µA EN = VIN, Not Switching 1.0 mA IINVIN VIN Quiescent Current EN = VIN, Not Switching 300 µA EN = CGND 35 71 OUTPUT CURRENT CONTROL VCS Current sense target voltage; VADJ = VIN 57 60 63 mV VCS = VCSP – VCSN GADJ IADJ Gain = (VADJ- VIN = 3.3V, VADJ = 0.5V or 15 16.67 18 V/V CGND)/(VCNP-VCSN) 1.5V w.r.t. CGND ICSN Isense Input Current VADJ = 1V w.r.t. CGND -50 µA VADJ = VIN 10 ICSP Isense Input Current VADJ = VIN 60 µA VADJ = 1V w.r.t. CGND 1 Gm CS to COMP Transconductance; Gm = 0.6 1.3 2.2 mS ICOMP / (VCSP – VCSN - VADJ/16.67) ON TIME CONTROL TONTH On time threshold VTON - VEE at terminate ON 230 287 334 mV time event GATE DRIVE AND INTERNAL REGULATOR VCCOUT VCC output regulation w.r.t. ICC = 0mA to 20mA 6.3 6.75 7.1 V VEE VCCILIM VCC current limit VCC = VEE 33 53 mA ROLH HO output low resistance I = 50mA source 2 Ω ROHH HO output high resistance I = 50mA sink 3 ROLL LO output low resistance I = 50mA source 2 Ω ROHL LO output high resistance I = 50mA sink 3 ROLP DIMO output low resistance I = 5mA source 20 Ω ROHP DIMO output high resistance I = 5mA sink 30 FUNCTIONAL CONTROL VINUVLO VIN undervoltage lockout With respect to CGND 1.4 V VCCUVLO VCC - VEE undervoltage lockout On Threshold 6.0 6.6 7.0 V thresholds Off threshold 4.9 5.4 5.8 VEN Enable threshold, with respect Device on w.r.t. CGND 1.6 V to CGND Device off w.r.t. CGND 0.6 REN Enable pin pullup resistor 100 k Ω VDIM DIM logic input threshold DIM rising threshold w.r.t. 1.6 CGND V DIM falling threshold w.r.t. 0.6 CGND RDIM DIM pin pulldown resistor 100 k Ω IADJ ADJ pin current -1.0 1.0 µA (1) All limits guaranteed at room temperature (standard typeface) and at temperature extremes (bold typeface). All room temperature limits are 100% production tested. All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL). (2) Typical numbers are at 25°C and represent the most likely norm. Copyright © 2007–2008, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM3433 |
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