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ZHCSCK8H May 2014 – April 2025 LP8860-Q1

PRODUCTION DATA

封裝選項

機械數據 (封裝 | 引腳)

VFP|32
- MPQF098C

散熱焊盤機械數據 (封裝 | 引腳)

VFP|32
- PPTD258B

訂購信息

5.6 Current Sinks Electrical Characteristics

Limits apply over the full ambient temperature range –40°C ≤ T_A ≤ +125°C. Unless otherwise specified: V_DD = 3.3V, V_IN = 12V, EN/VDDIO = 3.3V, L = 22μH, C_IN = 2 × 10μF ceramic and 33μF electrolytic, C_OUT = 2 × 10μF ceramic and 33μF electrolytic, C_VDD = 1μF, C_CPUMP = 10μF, Q = IPD25N06S4L-30-ND, D = SS5P10-M3/86A.

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
I_LEAKAGE	Leakage current	Outputs OUT1 to OUT4, V_OUT = 48V		0.1	1	μA
I_MAX	Maximum source current	OUT1 to OUT4		150		mA
I_OUT	Output current accuracy	I_OUT = 150mA	?3%		3%
I_MATCH	Output current matching⁽¹⁾	I_OUT = 150mA, 100% brightness		0.5%	2%
?_{LED_PWM}	LED PWM output frequency for display mode	PWM_FREQ[3:0] = 0000b PWM_FREQ[3:0] = 1111b		4883 39 063		Hz
?_PWM	PWM input frequency	BRT_MODE[1:0] = 00, 01 and 10	100		500	Hz
t_{PWM MIN}	Minimum on and off time for PWM input			400		ns
I_DIM	Dimming ratio (input resolution)	External 100 Hz PWM	13 000:1
I_DIM	Dimming ratio (input resolution)	SPI or I²C control		16		bit
PWM_RES	PWM output resolution, PWM control for BRT_MODE[1:0] = 00, 01, and 10 (without dithering)	?_{LED_PWM} = 5kHz, ?_OSC = 5MHz		10		bits
		?_{LED_PWM}= 10kHz, ?_OSC = 5MHz		9
		?_{LED_PWM} = 20kHz, ?_OSC = 5MHz		8
		?_{LED_PWM} = 40kHz, ?_OSC = 5MHz		7
		?_{LED_PWM} = 5kHz, ?_OSC = 40MHz		13
		?_{LED_PWM} = 10kHz, ?_OSC = 40MHz		12
		?_{LED_PWM} = 20kHz, ?_OSC = 40MHz		11
		?_{LED_PWM} = 40kHz, ?_OSC = 40MHz		10
ΔI_OUT	Individual output current adjustment range	DRV_OUTx_CORR[3:0] = 1111		–7.4%
ΔI_OUT	Individual output current adjustment range	DRV_OUTx_CORR[3:0] = 0000		6.5%
V_SAT	Saturation voltage⁽²⁾	I_OUT = 150mA		0.5	0.75	V
V_{SHORT_FAULT_THR}	LED short detection threshold	DRV_LED_FAULT_THR[1:0] = 00		3.6		V
		DRV_LED_FAULT_THR[1:0] = 01		3.6
		DRV_LED_FAULT_THR[1:0] = 10		6.9
		DRV_LED_FAULT_THR[1:0] = 11		10.6

(1) Output Current Accuracy is the difference between the actual value of the output current and programmed value of this current. Matching is the maximum difference from the average. For the constant current sinks on the part (OUT1 to OUT4), the following are determined: the maximum output current (MAX), the minimum output current (MIN), and the average output current of all outputs (AVG). Two matching numbers are calculated: (MAX-AVG)/AVG and (AVG-MIN)/AVG. The largest number of the two (worst case) is considered the matching figure. The typical specification provided is the most likely norm of the matching figure for all parts. Note that some manufacturers have different definitions in use.

(2) Saturation voltage is defined as the voltage when the LED current has dropped 10% from the value measured at 1V.