Datasheet MAX25601A, MAX25601B, MAX25601C, MAX25601D (Maxim) - 6
| Fabricante | Maxim |
| Descripción | Synchronous Boost and Synchronous Buck LED Controllers |
| Páginas / Página | 33 / 6 — Electrical Characteristics (continued). PARAMETER. SYMBOL. CONDITIONS. … |
| Formato / tamaño de archivo | PDF / 1.3 Mb |
| Idioma del documento | Inglés |
Electrical Characteristics (continued). PARAMETER. SYMBOL. CONDITIONS. MIN. TYP. MAX. UNITS. BOOST / REGULATION / CURRENT SENSE
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MAX25601A/MAX25601B/ Synchronous Boost and MAX25601C/MAX25601D Synchronous Buck LED Controllers
Electrical Characteristics (continued)
(VIN = 12V, VUVEN = 12V, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DL1 Gate Driver RDL1_SRC TA = -40°C to DL1 = high 1.7 3.5 On-Resistance +125°C Ω RDL1_SINK DL1 = low 0.8 1.6 DL1 Gate Driver Source/ Sink Current IDL1 1.5 A DH1 to DL1 Deadtime DH1 fall to DL1 rise, CL = 5nF 20 ns DL1 to DH1 Deadtime DL1 fall to DH1 rise, CL = 5nF 20 ns
BOOST / REGULATION / CURRENT SENSE
Feedback Voltage VFB 0.990 1.01 1.035 V FB Input Current TA = 25°C -1 +1 µA OVP Threshold VTH_OVP_BST 1.14 1.20 1.24 V OVP Hysteresis Falling voltage 100 mV INP-INN Current-Limit Threshold VILIM_BST Peak current limit 70 85 100 mV INP-INN Negative VNEG_ILIM_ Current-Limit Threshold With respect to positive current limit -30 % BST Boost Current-Sense Gain CSABOOST 9 11 12 V/V Boost Current-Sense VCS_OFS_ Amplifier Offset 0.5 V BOOST Peak Slope-Compensa- RDL2 = 30kΩ 1.39 tion Ramp Voltage VSC_RAMP 8V ≤ VIN ≤ 20V V RDL2 = 100kΩ 2.08
BOOST / ERROR AMPLIFLIER
Transconductance Gm 200 300 400 μS COMP Source Current FB = 0V for maximum Gm source current +92 μA COMP Sink Current FB = 2V for Minimum GM sink current -45 µA COMP Clamp Voltage 4 V COMP Output Offset VCOMP_OFS 1.7
HUD INPUT/OUTPUT (32-pin TQFN Only)
PWM_HUD Input High VPWM_HUD_IH PWM_HUD Rising 2.0 V PWM_HUD Input Low VPWM_HUD_IL PWM_HUD Falling 0.8 V PWM_HUD to HUD_ PWM_HUD Rising to HUD_OUT Falling, or OUT Delay tHUD_DLY PWM_HUD Falling to HUD_OUT Rising. 30 ns CL = 10nF. HUD_OUT Driver RHUD_SRC TA = -40°C to HUD_OUT = high 2.5 5 On-Resistance +125°C Ω RHUD_SNK HUD_OUT = low 1.5 3.0 PWM_HUD Input Resistance 600 kΩ
Note 1:
Limits are 100% tested at TA = +25°C and TA = +125°C. Limits over the operating temperature range and relevant supply voltage range are guaranteed by design and characterization. www.maximintegrated.com Maxim Integrated │
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Electrical Characteristics (continued)
(VIN = 12V, VUVEN = 12V, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DL1 Gate Driver RDL1_SRC TA = -40°C to DL1 = high 1.7 3.5 On-Resistance +125°C Ω RDL1_SINK DL1 = low 0.8 1.6 DL1 Gate Driver Source/ Sink Current IDL1 1.5 A DH1 to DL1 Deadtime DH1 fall to DL1 rise, CL = 5nF 20 ns DL1 to DH1 Deadtime DL1 fall to DH1 rise, CL = 5nF 20 ns
BOOST / REGULATION / CURRENT SENSE
Feedback Voltage VFB 0.990 1.01 1.035 V FB Input Current TA = 25°C -1 +1 µA OVP Threshold VTH_OVP_BST 1.14 1.20 1.24 V OVP Hysteresis Falling voltage 100 mV INP-INN Current-Limit Threshold VILIM_BST Peak current limit 70 85 100 mV INP-INN Negative VNEG_ILIM_ Current-Limit Threshold With respect to positive current limit -30 % BST Boost Current-Sense Gain CSABOOST 9 11 12 V/V Boost Current-Sense VCS_OFS_ Amplifier Offset 0.5 V BOOST Peak Slope-Compensa- RDL2 = 30kΩ 1.39 tion Ramp Voltage VSC_RAMP 8V ≤ VIN ≤ 20V V RDL2 = 100kΩ 2.08
BOOST / ERROR AMPLIFLIER
Transconductance Gm 200 300 400 μS COMP Source Current FB = 0V for maximum Gm source current +92 μA COMP Sink Current FB = 2V for Minimum GM sink current -45 µA COMP Clamp Voltage 4 V COMP Output Offset VCOMP_OFS 1.7
HUD INPUT/OUTPUT (32-pin TQFN Only)
PWM_HUD Input High VPWM_HUD_IH PWM_HUD Rising 2.0 V PWM_HUD Input Low VPWM_HUD_IL PWM_HUD Falling 0.8 V PWM_HUD to HUD_ PWM_HUD Rising to HUD_OUT Falling, or OUT Delay tHUD_DLY PWM_HUD Falling to HUD_OUT Rising. 30 ns CL = 10nF. HUD_OUT Driver RHUD_SRC TA = -40°C to HUD_OUT = high 2.5 5 On-Resistance +125°C Ω RHUD_SNK HUD_OUT = low 1.5 3.0 PWM_HUD Input Resistance 600 kΩ
Note 1:
Limits are 100% tested at TA = +25°C and TA = +125°C. Limits over the operating temperature range and relevant supply voltage range are guaranteed by design and characterization. www.maximintegrated.com Maxim Integrated │
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