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TPS92601-Q1 Datasheet(PDF) 7 Page - Texas Instruments |
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TPS92601-Q1 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 45 page TPS92601-Q1, TPS92602-Q1, TPS92601A-Q1, TPS92602A-Q1 www.ti.com SLUSBP5D – MARCH 2014 – REVISED JANUARY 2015 Electrical Characteristics (continued) TJ = –40°C to 150°C, VVDD = 12 VDC, over recommended operating conditions (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT HIGH-SIDE CURRENT-SENSE ERROR AMPLIFIER VFBx < 2.1 V V(SPSN,Com) Common-mode voltage ISPx, ISNx 4 74 V 4 V < V(SPSN_Com) < 75 V, VFBx < 2.1 V, 150 mV TPS92601-Q1, TPS92602-Q1 V(SPSN_Diff) Full-scale sense voltage ISPx – ISNx 4 V < V(SPSN_Com) < 75 V, VFBx < 2.1 V, 300 mV TPS92601A-Q1, TPS92602A-Q1 V(SPSN_AC) Sense-voltage accuracy Common-mode voltage 4 V to 75 V –6 6 mV I(BIAS_SPSN) Input bias current ISPx, ISNx 4 V < V(SPSN_Com) < 75 V, V(SPSN_Diff) = 150 mV 40 µA TPS92601-1, TPS92602-Q1, 4 V < V(SPSN_Com) < 100 135 µA 75 V, V(SPSN_Diff) = 150 mV I(offset_SPSN) Input offset current ISPx, ISNx TPS92601A-Q1, TPS92602A-Q1, 4 V < 175 200 µA V(SPSN_Com) < 75 V, V(SPSN_Diff) = 300 mV gMC Forward transconductance 1 mS TPS92601-Q1, TPS92602-Q1 5 V/V A(HSCS) HS current-sense gain TPS92601A-Q1, TPS92602A-Q1 2.5 V/V CURRENT CONTROL ICTRL – ANALOG DIMMING FOR ALL PARAMETERS: VFBx < 2.1 V I(DIM_LIN) Linear analog dimming range 10% 100% TPS92601-Q1, TPS92602-Q1, TA = 25ºC (1) 9.7 10 10.3 TPS92601-Q1, TPS92602-Q1, TA = 125ºC (1) 9.5 10 10.5 K(DIMfactor) Dimming factor, V(ICTRL) / V(SNSPx) TPS92601A-Q1, TPS92602A-Q1, TA = 25ºC (1) 4.85 5 5.15 TPS92601A-Q1, TPS92602A-Q1, TA = 125ºC (1) 4.75 5 5.25 V(ICTRLx) Adjustable voltage range See Figure 12 0 1.5 V R(ICTRLpd) Pulldown resistance at ICTRLx pin 0.75 1 1.2 M Ω ERROR AMPLIFIER - REFERENCE VOLTAGE V(VFB) Voltage feedback 2.2 V ΔV(VFB) Voltage FB accuracy –5% 5% I(BIAS) Input bias current VFB = 2.2 V 500 nA g(Mv) Forward transconductance 1 mS INTERNAL SOFT-START t(softstart) Soft-start time, internal soft-start COMP 0 V to 1.5 V 3.5 ms DIAGNOSIS – DIAGx PIN TPS92601-Q1, TPS92602-Q1 10 mV V(OPLED) Open LED failure TPS92601A-Q1, TPS92602A-Q1 20 mV V(DIAG_OP) Low-level voltage, DIAGx pin DIAGx pin pulled low, I(DIAGx) = 100 µA 0.15 V TPS92601-Q1, TPS92602-Q1 225 mV V(SHLED) Shorted LED failure TPS92601A-Q1, TPS92602A-Q1 450 mV V(DIAG_SH) High-level voltage, DIAGx pin DIAGx pin pulled high, I(DIAGx) = 100 µA 3 3.47 V V(ILED1) 0.2 2.85 Range for tracking LED current on DIAGx Voltage range on DIAGx pin (VIN > 6 V) V pin V(ILED2) 0.2 2.85 V(DIAG_AC) Offset of DIAG output buffer At input of DIAG buffer –12 12 mV Within linear analog dimming range and DIAG tracking range. Exclusive offset V(DIAG_AC), 12.5 TPS92601-Q1, TPS92602-Q1 K(DIAG_factor) Factor V(DIAG) / V(SPSN) Within linear analog dimming range and DIAG tracking range. Exclusive offset V(DIAG_AC), 6.25 TPS92601A-Q1, TPS92602A-Q1 COMPENSATION NETWORK – COMPx PIN V(COMPx) Compensation-network output-pin voltage 0 3.3 V THERMAL SHUTDOWN T(SD) Thermal shutdown 165 °C T(HYS) Hysteresis 20 °C (1) Within linear analog dimming range (10%–100%). Exclusive offset V(SPSN_AC) = 6 mV Copyright © 2014–2015, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: TPS92601-Q1 TPS92602-Q1 TPS92601A-Q1 TPS92602A-Q1 |
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