RT9214 Datasheet, PDF (4/17 Pages) Richtek Technology Corporation – 5V/12V Synchronous Buck PWM DC-DC Controller

RT9214
Absolute Maximum Ratings (Note 1)
z Supply Voltage, V_CC -------------------------------------------------------------------------------------- 16V
z BOOT, V_BOOT - V_PHASE ------------------------------------------------------------------------------------ 16V
z PHASE to GND
DC ------------------------------------------------------------------------------------------------------------- −5V to 15V
< 200ns ------------------------------------------------------------------------------------------------------ −10V to 30V
z BOOT to PHASE ------------------------------------------------------------------------------------------ 15V
z BOOT to GND
DC ------------------------------------------------------------------------------------------------------------- −0.3V to V_CC+15V
< 200ns ------------------------------------------------------------------------------------------------------ −0.3V to 42V
z UGATE ------------------------------------------------------------------------------------------------------- V_PHASE - 0.3V to V_BOOT + 0.3V
z LGATE ------------------------------------------------------------------------------------------------------- GND - 0.3V to V_VCC + 0.3V
z Input, Output or I/O Voltage ----------------------------------------------------------------------------- GND-0.3V to 7V
z Power Dissipation, P_D @ T_A = 25°C (Note 4)
SOP-8 -------------------------------------------------------------------------------------------------------- 0.625W
SOP-8 (Exposed Pad) ----------------------------------------------------------------------------------- 1.33W
z Package Thermal Resistance
SOP-8, θ_JA -------------------------------------------------------------------------------------------------- 160°C/W
SOP-8 (Exposed Pad), θ_JA ------------------------------------------------------------------------------ 75°C/W
z Junction Temperature ------------------------------------------------------------------------------------- 150°C
z Lead Temperature (Soldering, 10 sec.) --------------------------------------------------------------- 260°C
z Storage Temperature Range ---------------------------------------------------------------------------- −65°C to 150°C
z ESD Susceptibility (Note 2)
HBM (Human Body Mode) ------------------------------------------------------------------------------ 2kV
MM (Machine Mode) -------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 3)
z Supply Voltage, V_CC -------------------------------------------------------------------------------------- 5V ± 5%,12V ± 10%
z Junction Temperature Range ---------------------------------------------------------------------------- −40°C to 125°C
z Ambient Temperature Range ---------------------------------------------------------------------------- −40°C to 85°C
Electrical Characteristics
(VCC = 5V/12V, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
V_CC Supply Current
Nominal Supply Current
Power-On Reset
I_CC
UGATE and LGATE Open
POR Threshold
Hysteresis
Switcher Reference
V_CCRTH
V_CCHYS
V_CC Rising
Reference Voltage
V_REF
V_CC = 12V
Min Typ Max Units
--
6 15 mA
-- 4.1 4.5 V
0.35 0.5 --
V
0.784 0.8 0.816 V
To be continued
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4
DS9214-13 September 2007