ISL6253HAZ Intersil, ISL6253HAZ Datasheet
ISL6253HAZ
Specifications of ISL6253HAZ
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ISL6253HAZ Summary of contents
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... PART # RANGE (°C) PACKAGE ISL6253HRZ -10 to 100 28 Ld 5x5 QFN (Note 1) (Pb-free) ISL6253HAZ -10 to 100 28 Ld QSOP (Note 1) (Pb-free) NOTES: 1. Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which is compatible with both SnPb and Pb-free soldering operations ...
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Pinouts ISL6253 (28 LD QFN) TOP VIEW CELLS 2 3 ICOMP VCOMP 4 5 ICM VREF 6 CHLIM ISL6253 CSOP 20 CSIN 19 ...
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Absolute Maximum Ratings DCIN, CSIP, DCPRN, ACPRN, CSON to GND . . . . . . -0.3V to +28V CSIP-CSIN, CSOP-CSON . . . . . . . . . . . . . . . . . . . ...
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Electrical Specifications DCIN = CSIP = CSIN = 18V, CSOP = CSON = 12V, ACSET = DCSET = 1.5V, VREF = ACLIM = CHLIM, VADJ = Floating VDD = 5V, BOOT-PHASE = 5.0V, GND = PGND = 0V, ...
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Electrical Specifications DCIN = CSIP = CSIN = 18V, CSOP = CSON = 12V, ACSET = DCSET = 1.5V, VREF = ACLIM = CHLIM, VADJ = Floating VDD = 5V, BOOT-PHASE = 5.0V, GND = PGND = 0V, ...
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Typical Operating Performance Circuit of Figure 18, VDCIN = 20V, 4S2P Li-Ion Battery, T 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0 LOAD CURRENT (mA) FIGURE 1. VDD LOAD REGULATION 5.0 4.0 3.0 2.0 1.0 ...
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Typical Operating Performance Circuit of Figure 18, VDCIN = 20V, 4S2P Li-Ion Battery 5V/DIV INDUCTOR CURRENT 2A/DIV BATTERY VOLTAGE 2V/DIV t: 0.5ms/DIV FIGURE 7. CHARGE ENABLE AND SHUTDOWN BGATE-CSIP 2V/DIV SYSTEM BUS VOLTAGE 5V/DIV SGATE-CSIP 2V/DIV INDUCTOR CURRENT ...
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Typical Operating Performance Circuit of Figure 18, VDCIN = 20V, 4S2P Li-Ion Battery, T VDCIN = 20V VDCIN=20V VCSON = 16.8V VCSON=16.8V PHASE 10V/DIV LGATE UGATE UGATE UGATE LGATE 2V/DIV t: 100ns/DIV FIGURE 13. SWITCHING WAVEFORMS AT CONSTANT CHARGE CURRENT ...
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PHASE The Phase connection pin connects to the high side MOSFET source, output inductor, and low side MOSFET drain. CSOP/CSON CSOP/CSON are the battery charging current sensing positive/negative inputs. The differential voltage across CSOP and CSON is used to sense ...
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DCIN SGATE ICM ICM ACSET + ACPRN 1.26V 1.26V - - ADAPTER ACLIM CURRENT LIMIT SET 2.1V 2.1V ICOMP MIN + + VOLTAGE gm1 gm1 BUFFER - - VCOMP VOLTAGE VADJ SELECTOR 3.1V/CELL - CELLS - VDD ...
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INPUT 25V 130K 10. C12 C12 1µF VCC VCC R5 R5 C10 C10 DIGITAL 100K 1µF INPUT D/A OUTPUT OUTPUT R13: 100Ω A/D INPUT 5A INPUT 5A INPUT ...
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AC ADAPTER AC ADAPTER R13 R13 VDD VDD 130K 100K R14 R9 10.5K 10. C8: 1µ R5, R14 C10: 1µF 4.7Ω 4.7Ω 100K VCC VCC DIGITAL DIGITAL INPUT INPUT DIGITAL ...
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Theory of Operation Introduction The ISL6253 includes all of the functions necessary to charge cell Li-Ion and Li-polymer batteries. A high efficiency synchronous buck converter is used to control the charging voltage and charging current up to ...
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Connect CELLS as shown in Table 1 to charge Li+ cells. When charging other cell chemistries, use CELLS to select an output voltage range for the charger. The internal error amplifier gm1 maintains voltage regulation. The ...
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DC Adapter Detection Connect the DC adapter voltage like aircraft power through a resistor divider to DCSET to detect when DC power is available, as shown in Figure 18. DCPRN is an open-drain output and is high impedance when DCSET ...
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For V = 20V 16.8V, I IN,MAX BAT BAT,MAX f = 300kHz, the calculated inductance is 12.8µH. Choosing s the closest standard value gives L = 15µH. Ferrite cores are often the best choice since they are optimized ...
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Choose a low-side MOSFET that has the lowest possible on-resistance, has a moderate-sized package like SO-8 and is reasonably priced. The switching losses are not an issue for the low side MOSFET because it operates at zero- voltage-switching. Choose a ...
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PWM Comparator Gain F m The PWM comparator gain Fm for peak current mode control is given by: d ˆ ---------------- - = ----------------- m v ˆ V comp PWM where V is the peak-peak voltage of ...
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Figure 20 shows the type II compensator and its transfer function is expressed as follows --------- - v ˆ ω comp ( ) -------------------- - ----------------------------- - ---------------- - = v ...
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PHASE PIN This trace should be short, and positioned away from other weak signal traces. This node has a very high dv/dt with a voltage swing from the input voltage to ground. No trace should be in parallel with it. ...
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... Dimensions D2 and E2 are for the exposed pads which provide improved electrical and thermal performance. 8. Nominal dimensions are provided to assist with PCB Land Pattern Design efforts, see Intersil Technical Brief TB389 Features and dimensions A2, A3, D1, E1, P & θ are present when Anvil singulation method is used and not present for saw L singulation ...
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... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...