ha17451ap Renesas Electronics Corporation., ha17451ap Datasheet
ha17451ap
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ha17451ap Summary of contents
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... HA17451AP/HA17451AFP Switching Regulator Controllers for DC/DC Converters Description The HA17451 is a dual-channel switching regulator controller IC. Each channel contains the basic circuits for controlling a PWM-type switching-regulator power supply. Both channels are integrated onto the same chip. Both channels can be completely synchronized, using the same oscillator output waveform. Each channel can provide output voltages for step-up, step-down, inverting, and other converter topologies ...
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... Low threshold voltage: 2.98 V (typ) Low current drain: 1.5 mA (typ) Operates at wide range of oscillator frequencies: f Dead time adjustable through full duty cycle range Surface-mount package (SOP16) for saving space (HA17451AFP) Ordering Information Type Name HA17451AP HA17451AFP kHz to 300 kHz OSC Package DP-16 FP-16DA ...
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... Pin Functions Pin No. Symbols NON. INV. INPUT 4, 13 INV. INPUT 5, 12 FEEDBACK 6, 11 D.T OUT 8 GND S.C.P 16 Vref HA17451AP/HA17451AFP C 16 Vref S.C NON. INV INPUT2 INV INPUT2 FEED 5 12 BACK2 6 D.T.C2 11 OUT2 7 ...
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... HA17451AP/HA17451AFP Block Diagram 4 ...
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... V Collector output voltage V Collector output current I Power dissipation P Operating temperature Topr Storage temperature Tstg Note: This value applies to the HA17451AP at ambient temperatures Derate by8.3 mW/ C above that point. HA17451AP/HA17451AFP Also used as positive feedback route + + – 1.23 V PWM Comparator2 + – – ...
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... HA17451AP/HA17451AFP Electrical Characteristics ( Reference Section Item Symbol Output voltage Vref Voltage drop Vdrop Line regulation Line Load regulation Load Maximum output current I OMAX Reverse voltage state I OR minimum current Undervoltage Lockout Protection Section Item Symbol High level threshold Vth ...
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... Note connected between pin 4 and 5 for channel 1, pin 12 and 13 for channel 2. NF Output Section Item Symbol Collector off-state I Leak current (1) Collector off-state I Leak current (2) Saturation voltage Vsat HA17451AP/HA17451AFP = 200 kHz) (cont) CC OSC Min Typ Max 2.05 2.25 1.20 1.45 Min Typ Max 6 6 100 ...
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... HA17451AP/HA17451AFP PWM Comparator Section Item Symbol Input threshold voltage Vt0 Input threshold voltage Vt100 Input sink current Isink Input source current Isource Total Current Item Symbol Standby current Iccs Average supply current Icca Test Circuit Note 330 Note: Connect a phase compensating capacitor (at least Vref. ...
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... Dead Time Input Voltage ( 33000 OSC 100 1.00 1.25 1.50 1.75 Dead Time Input Voltage V HA17451AP/HA17451AFP Reference Output Voltage Variation vs. Ambient Temperature 1.5 1 OUT 0.5 0 –0.5 –1.0 –1 –20 0 (V) Ambient Temperature Open Loop Gain, Phase Variation vs. Frequency 100 ...
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... HA17451AP/HA17451AFP Oscillator Frequency Variation vs. Ambient Temperature 330 OSC 0 –5 –10 –15 – Ambient Temperature Standby Current vs. Supply Voltage HA17451A ...
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... Timing Waveforms • Internal waveform timing diagram HA17451AP/HA17451AFP 11 ...
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... HA17451AP/HA17451AFP Typical System Configurations • Dual-output DC/DC converter 4 2 2000 p R10 S.C.P disable 3 2000 0. Switching transistor 2SB857 470 p 1 ...
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... V OUT > where Feedback voltage resistors Absolute value of negative output voltage OUT 18 A: Minimum current with negative voltage at reference voltage pin; I HA17451AP/HA17451AFP OUT R 2 Iref (min) OR (min) OR –0.2 V Negative DC output – ...
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... HA17451AP/HA17451AFP Package Dimensions 20.00 Max 16 1 1.11 Max 2.54 0.25 10.06 10.5 Max 16 1 0.80 Max 1.27 *0.42 0.08 0.40 0.06 *Dimension including the plating thickness Base material dimension 14 19. 1.3 0.48 0.10 0 – 15 Hitachi Code JEDEC EIAJ Mass (reference value 7.80 0.70 0.15 M 0.12 Hitachi Code JEDEC EIAJ Mass (reference value) Unit: mm 7.62 + 0.13 0.25 – 0.05 DP-16 Conforms Conforms 1.07 g Unit 0.20 – 0.30 1.15 0 – ...
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... Electronic Components Group. Whitebrook Park Lower Cookham Road Maidenhead Berkshire SL6 8YA, United Kingdom Tel: <44> (1628) 585000 Fax: <44> (1628) 778322 HA17451AP/HA17451AFP Hitachi Asia Pte. Ltd. Hitachi Asia (Hong Kong) Ltd. Group III (Electronic Components) 16 Collyer Quay #20-00 7/F., North Tower, World Finance Centre, Hitachi Tower ...