HA16666P HITACHI, HA16666P Datasheet
HA16666P
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HA16666P Summary of contents
Page 1
... PWM Controlled Switching Regulator Description The HA16666P/ voltage mode PWM (pulse width modulation) control IC for switching regulator control. It can drive a power MOS FET efficiently on 600 kHz. Its stanby current is 0.3 mA (max), and it is used as the primary control power supply. Functions ...
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... V typ IN Two input threshold voltage for overcurrent protection cmparator; fixed voltage (1.3 V) variable voltage Double pulse output protection by overcurrent protection circuit with one-pulse latch mode Wide input supply voltage range; V Ordering Information Type HA16666P HA16666FP Package DP-16 FP-16DA ...
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... Timing resistor (fall section) Triangular waveform oscillator Ground No connect No connect Pulse output Remote control Power supply voltage Reference voltage (5 V) output Comparator input (–) with reference voltage (1.3 V) Comparator input (–) for overcurrent protection + Comparator input (+) for overcurrent protection HA16666P/ N.INV – 15 INV Vref 12 V ...
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... HA16666P/FP Block Diagram 1 E OSC Out 6 7 GND N PWM + comparator – S S/R R Flip-flop Comparator Reference Triangular voltage waveform oscillator Undervoltage lockout protection Output driver + + N.INV 16 Over- current detector – – INV 15 – Vref 13 1 OUT 10 N.C 9 ...
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... Typ Vref 4.75 5.00 Line — 50 Load — — +60 RTC 600 — max f — — min f –10 0 der f — — HA16666P/FP HA16666FP Unit +40 V 100 mA 1 500* mA Vref V V – Vref 680* mW –20 to +85 C –55 to +125 C Max Unit Test Condition 5.25 V ...
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... HA16666P/FP Electrical Characteristics (V Item PWM Maximum duty cycle comparator Input bias current Low-level threshold voltage High-level threshold voltage Dead-band duty accuracy Dead-band duty input voltage stability Temperature coefficient of dead-band duty Overcurrent Input bias current detector Common-mode input voltage range Comparator Input bias current ...
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... V IN Remote control input – INV + -N.INV Overcurrent detection signal E/I Triangular waveform Output A 9.1 Vref OSC O/P Out GND T1 9.1 330 2SD667 is defined as 60 min and 200 max. V THH Overcurrent detection threshold Dead-band area HA16666P/FP 2SD667 15 2SB647 2,200 pF V THL 7 ...
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... HA16666P/FP Characteristic Curves Vref Output Voltage vs. Temperature 5.10 5.00 4.90 4.80 –30 0 Ambient Temperature Soft Start Time vs. Soft Start Capacitance 1 0.8 0.6 0.4 0 Soft Start Capacitor Capacitance f/f vs. Temperature +10 0 –10 – Ambient Temperature 6.0 5.0 4.0 3.0 2.0 1.0 50 100 ...
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... V Bias Point Quick shutdown area Under voltage lockout 0 8 Back-up supply voltage V B Soft start area 1 (V) IN HA16666P/ 330 9 D667 HA16666 10 15 2200 pF 7 B647 ...
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... HA16666P/FP Formula for the oscillation frequency HA16666 Vref OSC Out HA16666 summary formula of the oscillation ferquency log (f) a log ( The following table show empirical values of a and b for different values 180pF 0.50 330pF 0.61 1000pF 0.75 0.01 F 0.86 0.15 F 0.86 10 Frequency vs. R ...
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... System Connection Example Over current protection; Resistance sensing method RFI filter HA16666P/FP 11 ...
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... HA16666P/FP Over current protection; Current transformer method 12 RFI filter ...
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... Over current protection; Current transformer method RFI filter HA16666P/FP 13 ...
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... HA16666P/FP Package Dimensions 16 1 1.11 Max 2.54 0. 1.27 *0.42 0.40 *Dimension including the plating thickness Base material dimension 14 19.20 20.00 Max 9 8 1.3 0.48 0.10 Hitachi Code JEDEC EIAJ Mass (reference value) 10.06 10.5 Max 9 8 0.80 Max 0.08 0.06 0. ...
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... Tel: <852> (2) 735 9218 Fax: 535-1533 Fax: <852> (2) 730 0281 Hitachi Asia Ltd. Telex: 40815 HITEC HX Taipei Branch Office 3F, Hung Kuo Building. No.167, Tun-Hwa North Road, Taipei (105) Tel: <886> (2) 2718-3666 Fax: <886> (2) 2718-8180 Copyright ' Hitachi, Ltd., 1998. All rights reserved. Printed in Japan. HA16666P/FP 15 ...