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MC34844 bảng dữ liệu(PDF) 6 Page - Freescale Semiconductor, Inc |
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MC34844 bảng dữ liệu(HTML) 6 Page - Freescale Semiconductor, Inc |
6 / 62 page Analog Integrated Circuit Device Data Freescale Semiconductor 6 34844 PIN CONNECTIONS MC34844 PIN CONNECTIONS Figure 4. 34844 Pin Connections Table 2. 34844 Pin Definitions A functional description of each pin can be found in the Functional Pin Description section beginning on page 14. Pin Number Pin Name Pin Function Formal Name Definition 1 VIN Power Input voltage Input supply 2 PGNDB Power Power Ground Power ground 3 SWB Input Switch node B Boost switch connection B 4 SWA Input Switch node A Boost switch connection A 5 PGNDA Power Power Ground Power ground 6 A0/SEN Input Device Select Address select, device select pin or OVP HW control 7 EN Input Enable Enable pin (active high, internal pull-up) 8 - 17 I0-I9 Input LED Channel LED string connections 18 FAIL Open Drain Fault detection Fault detected pin (open drain): No Failure = Low-impedance Failure = High-impedance 19 ISET Passive Current set LED current setting resistor 20 PIN Input Positive current scale Positive input analog current control 21 NIN Input Negative current scale Negative input analog current control 22 SLOPE Passive Boost Slope Boost slope compensation Setting resistor 23 VDC3 Output Internal Regulator 3 Decoupling capacitor for internal phase locked loop power 24 CK Input/Output Clock signal Clock synchronization pin (input for M/~S = low - internal pull-up, output for M/~S = high) VIN PGNDB SWB SWA PGNDA A0/SEN EN IO CK VDC3 SLOPE NIN PIN ISET FAIL I9 I1 I2 I3 I4 I5 I6 I7 I8 25 32 31 30 29 28 27 26 24 17 18 19 20 21 22 23 1 8 7 6 5 4 3 2 16 9 10 1112 131415 QFN - EP 5.0 MM X 5.0 MM 32 LEAD EP GND EP = Exposed Pad TRANSPARENT TOP VIEW |
Số phần tương tự - MC34844_10 |
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Mô tả tương tự - MC34844_10 |
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