米6体育平台手机版

ZHCSN38D October 2021 – April 2024 LMR54406 , LMR54410

PRODUCTION DATA

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机械数据 (封装 | 引脚)

DBV|6
- MPDS026Q

散热焊盘机械数据 (封装 | 引脚)

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6.7 System Characteristics

The following specifications apply to a typical application circuit with nominal component values. Specifications in the typical (TYP) column apply to TJ = 25°C only. Specifications in the minimum (MIN) and maximum (MAX) columns apply to the case of typical components over the temperature range of TJ = -40°C to 150°C. These specifications are not ensured by production testing.

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
V_IN	Operating input voltage range		4		36	V
V_OUT	Adjustable output voltage regulation⁽¹⁾	PFM operation	–1.5%		2.5%
V_OUT	Adjustable output voltage regulation⁽¹⁾	FPWM operation	–1.5%		1.5%
I_SUPPLY	Input supply current when in regulation	V_IN =12 V, V_OUT = 3.3 V, I_OUT = 0 A, R_FBT = 1 MΩ, PFM variant		90		µA
D_MAX	Maximum switch duty cycle⁽²⁾			98%
V_HC	FB pin voltage required to trip short-circuit hiccup mode			0.325		V
t_D	Switch voltage dead time			2		ns
T_SD	Thermal shutdown temperature	Shutdown temperature		170		°C
T_SD	Thermal shutdown temperature	Recovery temperature		158		°C

(1) Deviation in V_OUT from nominal output voltage value at V_IN = 24 V, I_OUT = 0 A to full load

(2) In dropout the switching frequency drops to increase the effective duty cycle. The lowest frequency is clamped at approximately: F_MIN = 1 / (t_ON-MAX + t_OFF-MIN). D_MAX = t_ON-MAX /(t_ON-MAX + t_OFF-MIN).