PDF HA16664AFP Data sheet ( Hoja de datos )

Número de pieza	HA16664AFP
Descripción	PWM Controlled Switching Regulator
Fabricantes	Hitachi Semiconductor
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No Preview Available ! HA16654A, HA16664A Series PWM Controlled Switching Regulator The HA16654A and HA16664A are PWM control switching regulator ICs which drive a power MOSFET at high speed and high frequency. The standby current is limited to as small as 1.5 mA (typ). These devices incorporate totem pole circuits suited for high-speed push-pull operation at the output stage, accomplishing high-speed switching with rising time tr = 80 ns (typ) and falling time tf = 40 ns (typ) at 20 V swing. Functions • Reference voltage circuit • Triangular waveform oscillation circuit • PWM comparator circuit • Low-input malfunction protection circuit • Output drive circuit • Soft start and quick shut down Features • High speed switching: tr = 80 ns, tf = 40 ns (typ) when use exernal driver circuit • High frequency operation: HA16654A (f = 100 kHz to 500 kHz) HA16664A (f = 100 kHz to 200 kHz) Low power dissipation : 2 mA max in standby state • 5 V reference voltage • Low-input malfunction protection (High threshold voltage: 10 V Typ, Low threshold voltage: 8 V Typ) • Adjustable dead band width • Enlarged output pulse width control range (0 to 80%) • Soft start and quick shut down functions • Single output: totem pole 1 page Oscillator Item Maximum frequency Minimum frequency Initial accuracy Voltage stability PWM Item Maximum duty cycle Duty cycle accuracy Input bias current Output Driver Item Sink current at Vin low Output low level Output high level Output rising time Output falling time High level threshold Low level threshold Hysteresis width Total Current Item Standby current Operation current HA16654A, HA16664A Series Symbol f max f min f dev f av Min 500 — — — Typ Max Unit — — kHz — 100 kHz — ±10 % –0.02 ±1.0 kHz/V Test Condition CT = 220 pF CT = 560 pF VIN = 11 to 40 V Symbol Du Ddev IB Min 80 — — Typ — ±1 — Max Unit —% ±6 % 2.0 µA Test Condition R1 = 13 kΩ, R2 = 39 kΩ VE1 = 4 V, VDB = 0 V or VE1 = 0 V, VDB = 4 V Symbol IOS(Low) VOL VOH tr tf VTHH VTHL VHRS Min Typ 0.6 1.5 — 0.86 VIN – 2.2 — — 80 — 40 9 10 7.3 8 1.5 2.0 Max Unit — mA 1.4 V —V 150 ns 100 ns 11 V 9V 2.5 V Test Condition VIN = 6 V, VOUT = 0.4 V IO(sink) = 10 mA IO(source) = 10 mA Figure 3 Figure 3 UVL characteristics UVL characteristics UVL characteristics Symbol I CCS VCCL Min — 5.0 Typ 1.5 9.0 Max Unit 2.0 mA 13.0 mA Test Condition Figure 2 R1 = 13 kΩ, R2 = 29 kΩ, VIN = 20 V Figure 2 5 5 Page HA16654A, HA16664A Series Pulse Duty Cycle vs. Ambient Temperature (HA16654A) ( )60 CT RT = = 220 pF 27 kΩ f ≅ 500 kHz 50 ( )CT RT = = 330 150 pF kΩ f ≅ 100 kHz 40 30 –20 0 20 40 60 Ambient Temperature Ta (°C) 80 ∆ton/ton vs. Ambient Temperature (HA16654A) +10 0 –10 –20 ( )CT RT = = 220 pF 27 kΩ f ≅ 500 kHz ( )CT RT = = 330 150 pF kΩ f ≅ 100 kHz 0 20 40 60 Ambient Temperature Ta (°C) 80 Pulse Duty Cycle vs. Ambient Temperature (HA16664A) 60 50 ( ) ( )40 CT = 330 pF RT = 150 k Ω f ≅ 100 kHz CT RT = = 220 pF 95 k Ω f ≅ 200 kHz 30 –20 0 20 40 60 Ambient Temperature Ta (°C) 80 ∆ton/ton vs. Ambient Temperature (HA16664A) ( ) ( )+10 CT RT = = 330 150 pF kΩ f ≅ 100 kHz CT RT = = 220 pF 95 kΩ f ≅ 200 kHz 0 –10 –20 0 20 40 60 Ambient Temperature Ta (°C) 80 11 11 Page

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